diff --git a/.env b/.env
new file mode 100644
index 000000000..935e96d61
--- /dev/null
+++ b/.env
@@ -0,0 +1,7 @@
+GINKGO_TEST_OPTS ?=
+#GINKGO_TEST_OPTS += --keep-going
+GINKGO_TEST_OPTS += --vv
+#GINKGO_TEST_OPTS += --until-it-fails
+GINKGO_TEST_OPTS += --poll-progress-after 60s
+GINKGO_TEST_OPTS += --fail-fast
+#GINKGO_TEST_OPTS += --focus "generate artifacts & successful pingpong"
\ No newline at end of file
diff --git a/docs/platform/fabric/fabricdev/core/fabricdev/channelprovider.go b/docs/platform/fabric/fabricdev/core/fabricdev/channelprovider.go
index ee252361f..69f01c585 100644
--- a/docs/platform/fabric/fabricdev/core/fabricdev/channelprovider.go
+++ b/docs/platform/fabric/fabricdev/core/fabricdev/channelprovider.go
@@ -13,7 +13,6 @@ import (
 	"github.com/hyperledger-labs/fabric-smart-client/pkg/utils/errors"
 	driver3 "github.com/hyperledger-labs/fabric-smart-client/platform/common/driver"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/common/services/logging"
-	"github.com/hyperledger-labs/fabric-smart-client/platform/common/utils/hash"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/fabric/core/generic"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/fabric/core/generic/chaincode"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/fabric/core/generic/committer"
@@ -41,7 +40,6 @@ type provider struct {
 	metadataKVS             driver.MetadataStore
 	endorseTxKVS            driver.EndorseTxStore
 	publisher               events.Publisher
-	hasher                  hash.Hasher
 	newVault                generic.VaultConstructor
 	tracerProvider          tracing.Provider
 	metricsProvider         metrics.Provider
@@ -58,7 +56,6 @@ func NewChannelProvider(
 	metadataKVS driver.MetadataStore,
 	endorseTxKVS driver.EndorseTxStore,
 	publisher events.Publisher,
-	hasher hash.Hasher,
 	tracerProvider tracing.Provider,
 	metricsProvider metrics.Provider,
 	drivers multiplexed.Driver,
@@ -74,7 +71,6 @@ func NewChannelProvider(
 		metadataKVS:             metadataKVS,
 		endorseTxKVS:            endorseTxKVS,
 		publisher:               publisher,
-		hasher:                  hasher,
 		newVault:                newVault,
 		tracerProvider:          tracerProvider,
 		metricsProvider:         metricsProvider,
@@ -120,7 +116,6 @@ func (p *provider) NewChannel(nw driver.FabricNetworkService, channelName string
 		nw.ConfigService(),
 		peerService,
 		nw.LocalMembership().DefaultSigningIdentity(),
-		p.hasher,
 		channelConfig.FinalityWaitTimeout(),
 		true,
 	)
@@ -180,7 +175,6 @@ func (p *provider) NewChannel(nw driver.FabricNetworkService, channelName string
 	deliveryService, err := delivery.NewService(
 		channelName,
 		channelConfig,
-		p.hasher,
 		nw.Name(),
 		nw.LocalMembership(),
 		nw.ConfigService(),
diff --git a/docs/platform/fabric/fabricdev/core/fabricdev/driver/provider.go b/docs/platform/fabric/fabricdev/core/fabricdev/driver/provider.go
index 103bddb8f..8a8c0ecf1 100644
--- a/docs/platform/fabric/fabricdev/core/fabricdev/driver/provider.go
+++ b/docs/platform/fabric/fabricdev/core/fabricdev/driver/provider.go
@@ -15,7 +15,6 @@ import (
 	committer2 "github.com/hyperledger-labs/fabric-smart-client/platform/common/core/generic/committer"
 	cdriver "github.com/hyperledger-labs/fabric-smart-client/platform/common/driver"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/common/services/logging"
-	"github.com/hyperledger-labs/fabric-smart-client/platform/common/utils/hash"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/fabric/core/generic"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/fabric/core/generic/committer"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/fabric/core/generic/driver/config"
@@ -62,7 +61,6 @@ func NewProvider(
 	idProvider identity.ViewIdentityProvider,
 	kvss *kvs.KVS,
 	publisher events.Publisher,
-	hasher hash.Hasher,
 	tracerProvider tracing.Provider,
 	Drivers multiplexed.Driver,
 ) *Provider {
@@ -74,7 +72,6 @@ func NewProvider(
 			metadataKVS,
 			endorseTxKVS,
 			publisher,
-			hasher,
 			tracerProvider,
 			metricsProvider,
 			Drivers,
diff --git a/docs/platform/fabric/fabricdev/sdk/fabricdev/providers.go b/docs/platform/fabric/fabricdev/sdk/fabricdev/providers.go
index da4b3ade7..d8bae17c7 100644
--- a/docs/platform/fabric/fabricdev/sdk/fabricdev/providers.go
+++ b/docs/platform/fabric/fabricdev/sdk/fabricdev/providers.go
@@ -8,7 +8,6 @@ package fabricdev
 
 import (
 	fdevdriver "github.com/hyperledger-labs/fabric-smart-client/docs/platform/fabric/fabricdev/core/fabricdev/driver"
-	"github.com/hyperledger-labs/fabric-smart-client/platform/common/utils/hash"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/fabric/core"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/fabric/core/generic/driver/config"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/fabric/core/generic/driver/identity"
@@ -37,7 +36,6 @@ func NewDriver(in struct {
 	IdProvider          identity.ViewIdentityProvider
 	KVS                 *kvs.KVS
 	Publisher           events.Publisher
-	Hasher              hash.Hasher
 	TracerProvider      tracing.Provider
 	Drivers             multiplexed.Driver
 }) core.NamedDriver {
@@ -55,7 +53,6 @@ func NewDriver(in struct {
 			in.IdProvider,
 			in.KVS,
 			in.Publisher,
-			in.Hasher,
 			in.TracerProvider,
 			in.Drivers,
 		),
diff --git a/integration/fabric/atsa/states/states_test.go b/integration/fabric/atsa/states/states_test.go
index e40719c6c..cc0c1092a 100644
--- a/integration/fabric/atsa/states/states_test.go
+++ b/integration/fabric/atsa/states/states_test.go
@@ -28,10 +28,8 @@ func TestJson(t *testing.T) {
 	o, err := json.MarshalIndent(asset, "", " ")
 	assert.NoError(err)
 	fmt.Println(string(o))
-	hash := sha256.New()
-	hash.Write([]byte("Hello World!!!"))
-	rawHashed := hash.Sum(nil)
-	asset.PrivateProperties = []byte(base64.StdEncoding.EncodeToString(rawHashed))
+	rawHashed := sha256.Sum256([]byte("Hello World!!!"))
+	asset.PrivateProperties = []byte(base64.StdEncoding.EncodeToString(rawHashed[:]))
 	o, err = json.MarshalIndent(asset, "", " ")
 	assert.NoError(err)
 	fmt.Println(string(o))
diff --git a/integration/fabric/atsachaincode/chaincode/asset_transfer.go b/integration/fabric/atsachaincode/chaincode/asset_transfer.go
index 779bcf715..ef4d3c4f1 100644
--- a/integration/fabric/atsachaincode/chaincode/asset_transfer.go
+++ b/integration/fabric/atsachaincode/chaincode/asset_transfer.go
@@ -221,9 +221,8 @@ func (s *SmartContract) VerifyAssetProperties(ctx contractapi.TransactionContext
 		return false, fmt.Errorf("asset private properties hash does not exist: %s", assetID)
 	}
 
-	hash := sha256.New()
-	hash.Write(immutablePropertiesJSON)
-	calculatedPropertiesHash := hash.Sum(nil)
+	h := sha256.Sum256(immutablePropertiesJSON)
+	calculatedPropertiesHash := h[:]
 
 	// verify that the hash of the passed immutable properties matches the on-chain hash
 	if !bytes.Equal(immutablePropertiesOnChainHash, calculatedPropertiesHash) {
diff --git a/integration/fabricx/iou/iou_test.go b/integration/fabricx/iou/iou_test.go
index d4305976d..8166b348e 100644
--- a/integration/fabricx/iou/iou_test.go
+++ b/integration/fabricx/iou/iou_test.go
@@ -14,10 +14,10 @@ import (
 
 	"github.com/hyperledger-labs/fabric-smart-client/integration"
 	"github.com/hyperledger-labs/fabric-smart-client/integration/fabricx/iou"
+	"github.com/hyperledger-labs/fabric-smart-client/integration/nwo/common"
 	nwofabricx "github.com/hyperledger-labs/fabric-smart-client/integration/nwo/fabricx"
 	"github.com/hyperledger-labs/fabric-smart-client/integration/nwo/fabricx/fxconfig"
 	nwofsc "github.com/hyperledger-labs/fabric-smart-client/integration/nwo/fsc"
-	"github.com/hyperledger/fabric/integration/nwo"
 	. "github.com/onsi/ginkgo/v2"
 	. "github.com/onsi/gomega"
 )
@@ -76,7 +76,7 @@ func updateEP(s *TestSuite) {
 		Version: 0,
 	}
 
-	cmd := nwo.NewCommand(fxconfig.CMDPath(), command)
+	cmd := common.NewCommand(fxconfig.CMDPath(), command)
 	cmd.Stderr = os.Stderr
 	cmd.Stdout = os.Stdout
 	err := cmd.Run()
diff --git a/integration/nwo/common/images.go b/integration/nwo/common/images.go
index 99573cd86..8bfef976a 100644
--- a/integration/nwo/common/images.go
+++ b/integration/nwo/common/images.go
@@ -10,11 +10,11 @@ import (
 	"encoding/base32"
 	"strings"
 
-	"github.com/hyperledger/fabric/common/util"
+	"github.com/hyperledger-labs/fabric-smart-client/pkg/utils"
 )
 
 // UniqueName generates base-32 enocded UUIDs for container names.
 func UniqueName() string {
-	name := base32.StdEncoding.WithPadding(base32.NoPadding).EncodeToString(util.GenerateBytesUUID())
+	name := base32.StdEncoding.WithPadding(base32.NoPadding).EncodeToString(utils.GenerateBytesUUID())
 	return strings.ToLower(name)
 }
diff --git a/integration/nwo/fabric/topology/chaincode.go b/integration/nwo/fabric/topology/chaincode.go
index a0e3939b0..3a1a3b1df 100644
--- a/integration/nwo/fabric/topology/chaincode.go
+++ b/integration/nwo/fabric/topology/chaincode.go
@@ -7,10 +7,10 @@ SPDX-License-Identifier: Apache-2.0
 package topology
 
 import (
+	"crypto/sha256"
 	"fmt"
 	"os"
 
-	"github.com/hyperledger/fabric/common/util"
 	"github.com/onsi/gomega"
 )
 
@@ -37,7 +37,7 @@ type Chaincode struct {
 func (c *Chaincode) SetPackageIDFromPackageFile() {
 	fileBytes, err := os.ReadFile(c.PackageFile)
 	gomega.Expect(err).NotTo(gomega.HaveOccurred())
-	hashStr := fmt.Sprintf("%x", util.ComputeSHA256(fileBytes))
+	hashStr := fmt.Sprintf("%x", sha256.Sum256(fileBytes))
 	c.PackageID = c.Label + ":" + hashStr
 }
 
diff --git a/integration/nwo/fabricx/network/network.go b/integration/nwo/fabricx/network/network.go
index fb742302a..f1cfb717d 100644
--- a/integration/nwo/fabricx/network/network.go
+++ b/integration/nwo/fabricx/network/network.go
@@ -11,6 +11,7 @@ import (
 	"time"
 
 	"github.com/hyperledger-labs/fabric-smart-client/integration/nwo/api"
+	"github.com/hyperledger-labs/fabric-smart-client/integration/nwo/common"
 	"github.com/hyperledger-labs/fabric-smart-client/integration/nwo/fabric/commands"
 	fabric_network "github.com/hyperledger-labs/fabric-smart-client/integration/nwo/fabric/network"
 	"github.com/hyperledger-labs/fabric-smart-client/integration/nwo/fabric/topology"
@@ -18,7 +19,6 @@ import (
 	"github.com/hyperledger-labs/fabric-smart-client/integration/nwo/fsc/node"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/common/services/logging"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/common/utils"
-	"github.com/hyperledger/fabric/integration/nwo"
 	"github.com/onsi/gomega"
 	"github.com/onsi/gomega/gbytes"
 	"github.com/onsi/gomega/gexec"
@@ -168,7 +168,7 @@ func (n *Network) PostRun(load bool) {
 	gomega.Eventually(func(g gomega.Gomega) {
 		// TODO: set the correct query service endpoint
 		cmd := &fxconfig.ListNamespaces{QueryServiceEndpoint: "127.0.0.1:7001"}
-		sess, err := n.StartSession(nwo.NewCommand(fxconfig.CMDPath(), cmd), cmd.SessionName())
+		sess, err := n.StartSession(common.NewCommand(fxconfig.CMDPath(), cmd), cmd.SessionName())
 		g.Expect(err).NotTo(gomega.HaveOccurred())
 		g.Eventually(sess, n.EventuallyTimeout).Should(gexec.Exit(0))
 
@@ -211,7 +211,7 @@ func (n *Network) DeployNamespace(chaincode *topology.ChannelChaincode) {
 			},
 		},
 	}
-	sess, err := n.StartSession(nwo.NewCommand(fxconfig.CMDPath(), cmd), cmd.SessionName())
+	sess, err := n.StartSession(common.NewCommand(fxconfig.CMDPath(), cmd), cmd.SessionName())
 	gomega.Expect(err).NotTo(gomega.HaveOccurred())
 	gomega.Eventually(sess, n.EventuallyTimeout).Should(gexec.Exit(0))
 }
@@ -223,7 +223,7 @@ func (n *Network) UpdateNamespace(chaincodeID, version, path, packageFile string
 
 func (n *Network) ListInstalledNames() {
 	cmd := &fxconfig.ListNamespaces{QueryServiceEndpoint: "127.0.0.1:7001"}
-	sess, err := n.StartSession(nwo.NewCommand(fxconfig.CMDPath(), cmd), cmd.SessionName())
+	sess, err := n.StartSession(common.NewCommand(fxconfig.CMDPath(), cmd), cmd.SessionName())
 	gomega.Expect(err).NotTo(gomega.HaveOccurred())
 	gomega.Eventually(sess, n.EventuallyTimeout).Should(gexec.Exit(0))
 }
diff --git a/integration/nwo/fsc/fsc.go b/integration/nwo/fsc/fsc.go
index b3ea57d71..1af3600e0 100755
--- a/integration/nwo/fsc/fsc.go
+++ b/integration/nwo/fsc/fsc.go
@@ -33,7 +33,6 @@ import (
 	"github.com/hyperledger-labs/fabric-smart-client/platform/common/services/logging"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/common/utils"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/common/utils/collections"
-	"github.com/hyperledger-labs/fabric-smart-client/platform/common/utils/hash"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/view/services/grpc"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/view/services/storage/driver"
 	common2 "github.com/hyperledger-labs/fabric-smart-client/platform/view/services/storage/driver/common"
@@ -264,7 +263,6 @@ func (p *Platform) PostRun(bool) {
 				ConnectionConfig: p.Context.ConnectionConfig(node.UniqueName),
 			},
 			p.Context.ClientSigningIdentity(node.Name),
-			hash.NewSHA256Provider(),
 			tracerProvider,
 		)
 		gomega.Expect(err).NotTo(gomega.HaveOccurred())
diff --git a/platform/common/core/generic/vault/interceptor.go b/platform/common/core/generic/vault/interceptor.go
index 4ae3a6169..6558bf25e 100644
--- a/platform/common/core/generic/vault/interceptor.go
+++ b/platform/common/core/generic/vault/interceptor.go
@@ -12,7 +12,7 @@ import (
 
 	"github.com/hyperledger-labs/fabric-smart-client/pkg/utils/errors"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/common/driver"
-	"github.com/hyperledger-labs/fabric-smart-client/platform/common/utils/hash"
+	"github.com/hyperledger-labs/fabric-smart-client/platform/common/services/logging"
 )
 
 type VersionedQueryExecutor interface {
@@ -200,7 +200,7 @@ func (i *Interceptor[V]) SetState(namespace string, key string, value []byte) er
 	if i.IsClosed() {
 		return errors.New("this instance was closed")
 	}
-	i.logger.Debugf("SetState [%s,%s,%s]", namespace, key, hash.Hashable(value).String())
+	i.logger.Debugf("SetState [%s,%s,%s]", namespace, key, logging.SHA256Base64(value))
 
 	return i.rws.WriteSet.Add(namespace, key, value)
 }
diff --git a/platform/common/services/identity/identity.go b/platform/common/services/identity/identity.go
index e613e8a91..8bd533694 100644
--- a/platform/common/services/identity/identity.go
+++ b/platform/common/services/identity/identity.go
@@ -8,9 +8,8 @@ package identity
 
 import (
 	"bytes"
+	"crypto/sha256"
 	"encoding/base64"
-
-	"github.com/hyperledger-labs/fabric-smart-client/platform/common/utils"
 )
 
 // Identity wraps the byte representation of a lower level identity.
@@ -26,7 +25,8 @@ func (id Identity) UniqueID() string {
 	if len(id) == 0 {
 		return "<empty>"
 	}
-	return base64.StdEncoding.EncodeToString(utils.MustGet(utils.SHA256(id)))
+	h := sha256.Sum256(id)
+	return base64.StdEncoding.EncodeToString(h[:])
 }
 
 // Hash returns the hash of this identity
@@ -34,7 +34,8 @@ func (id Identity) Hash() string {
 	if len(id) == 0 {
 		return "<empty>"
 	}
-	return string(utils.MustGet(utils.SHA256(id)))
+	h := sha256.Sum256(id)
+	return string(h[:])
 }
 
 // String returns a string representation of this identity
diff --git a/platform/common/services/logging/types.go b/platform/common/services/logging/types.go
index ebe527939..56fae0317 100644
--- a/platform/common/services/logging/types.go
+++ b/platform/common/services/logging/types.go
@@ -7,6 +7,7 @@ SPDX-License-Identifier: Apache-2.0
 package logging
 
 import (
+	"crypto/sha256"
 	"encoding/base64"
 	"fmt"
 	"reflect"
@@ -15,7 +16,6 @@ import (
 	"unicode"
 
 	"github.com/hyperledger-labs/fabric-smart-client/platform/common/utils/collections"
-	"github.com/hyperledger-labs/fabric-smart-client/platform/common/utils/hash"
 )
 
 const (
@@ -33,6 +33,18 @@ func (k keys[K, V]) String() string {
 	return fmt.Sprintf(strings.Join(collections.Repeat("%v", len(k)), ", "), collections.Keys(k))
 }
 
+// SHA256Base64 logs lazily a byte slice as sha265 hash in base64 format
+func SHA256Base64(b []byte) sha256Base64Enc {
+	h := sha256.Sum256(b)
+	return h[:]
+}
+
+type sha256Base64Enc []byte
+
+func (b sha256Base64Enc) String() string {
+	return Base64(b).String()
+}
+
 // Base64 logs lazily a byte array in base64 format
 func Base64(b []byte) base64Enc {
 	return b
@@ -87,7 +99,7 @@ func (w prefix) String() string {
 	if len(res) <= 20 {
 		return res
 	}
-	return fmt.Sprintf("%s~%s", res[:20], hash.Hashable(res).String())
+	return fmt.Sprintf("%s~%s", res[:20], SHA256Base64([]byte(res)))
 }
 
 type printable string
diff --git a/platform/common/utils/hash.go b/platform/common/utils/hash.go
deleted file mode 100644
index 5e7fbc8b2..000000000
--- a/platform/common/utils/hash.go
+++ /dev/null
@@ -1,52 +0,0 @@
-/*
-Copyright IBM Corp. All Rights Reserved.
-
-SPDX-License-Identifier: Apache-2.0
-*/
-
-package utils
-
-import (
-	"crypto/sha256"
-	"encoding/binary"
-
-	"github.com/hyperledger-labs/fabric-smart-client/pkg/utils/errors"
-)
-
-func HashUInt64(raw []byte) (uint64, error) {
-	digest, err := SHA256(raw)
-	if err != nil {
-		return 0, err
-	}
-	return binary.BigEndian.Uint64(digest[:8]), nil
-}
-
-func HashInt64(raw []byte) (int64, error) {
-	digest, err := HashUInt64(raw)
-	if err != nil {
-		return 0, err
-	}
-	return int64(digest >> 1), nil
-}
-
-func HashUInt32(raw []byte) (uint32, error) {
-	digest, err := SHA256(raw)
-	if err != nil {
-		return 0, err
-	}
-	return binary.BigEndian.Uint32(digest[:4]), nil
-}
-
-func SHA256(raw []byte) ([]byte, error) {
-	hash := sha256.New()
-	n, err := hash.Write(raw)
-	if n != len(raw) {
-		return nil, errors.Errorf("hash failure")
-	}
-	if err != nil {
-		return nil, err
-	}
-	digest := hash.Sum(nil)
-
-	return digest, nil
-}
diff --git a/platform/common/utils/hash/hash.go b/platform/common/utils/hash/hash.go
deleted file mode 100644
index 9001845fc..000000000
--- a/platform/common/utils/hash/hash.go
+++ /dev/null
@@ -1,19 +0,0 @@
-/*
-Copyright IBM Corp. All Rights Reserved.
-
-SPDX-License-Identifier: Apache-2.0
-*/
-
-package hash
-
-import (
-	"github.com/hyperledger-labs/fabric-smart-client/platform/common/utils"
-)
-
-func SHA256(raw []byte) ([]byte, error) {
-	return utils.SHA256(raw)
-}
-
-func SHA256OrPanic(raw []byte) []byte {
-	return utils.MustGet(utils.SHA256(raw))
-}
diff --git a/platform/common/utils/hash/hashable.go b/platform/common/utils/hash/hashable.go
deleted file mode 100644
index b015101ef..000000000
--- a/platform/common/utils/hash/hashable.go
+++ /dev/null
@@ -1,26 +0,0 @@
-/*
-Copyright IBM Corp. All Rights Reserved.
-
-SPDX-License-Identifier: Apache-2.0
-*/
-
-package hash
-
-import (
-	"encoding/base64"
-
-	"github.com/hyperledger-labs/fabric-smart-client/platform/common/utils"
-)
-
-type Hashable []byte
-
-func (id Hashable) Raw() []byte {
-	if len(id) == 0 {
-		return nil
-	}
-	return utils.MustGet(utils.SHA256(id))
-}
-
-func (id Hashable) String() string { return base64.StdEncoding.EncodeToString(id.Raw()) }
-
-func (id Hashable) RawString() string { return string(id.Raw()) }
diff --git a/platform/common/utils/hash/hasher.go b/platform/common/utils/hash/hasher.go
deleted file mode 100644
index be8ac59fa..000000000
--- a/platform/common/utils/hash/hasher.go
+++ /dev/null
@@ -1,11 +0,0 @@
-/*
-Copyright IBM Corp. All Rights Reserved.
-
-SPDX-License-Identifier: Apache-2.0
-*/
-
-package hash
-
-type Hasher interface {
-	Hash(msg []byte) ([]byte, error)
-}
diff --git a/platform/common/utils/hash/provider.go b/platform/common/utils/hash/provider.go
deleted file mode 100644
index 7dcba2069..000000000
--- a/platform/common/utils/hash/provider.go
+++ /dev/null
@@ -1,39 +0,0 @@
-/*
-Copyright IBM Corp. All Rights Reserved.
-
-SPDX-License-Identifier: Apache-2.0
-*/
-
-package hash
-
-import (
-	"crypto/sha256"
-	"hash"
-
-	"github.com/hyperledger-labs/fabric-smart-client/pkg/utils/errors"
-)
-
-type SHA256Provider struct {
-}
-
-func NewSHA256Provider() *SHA256Provider {
-	return &SHA256Provider{}
-}
-
-func (p *SHA256Provider) Hash(msg []byte) ([]byte, error) {
-	hash := sha256.New()
-	n, err := hash.Write(msg)
-	if n != len(msg) {
-		return nil, errors.Errorf("hash failure")
-	}
-	if err != nil {
-		return nil, err
-	}
-	digest := hash.Sum(nil)
-
-	return digest, nil
-}
-
-func (p *SHA256Provider) GetHash() hash.Hash {
-	return sha256.New()
-}
diff --git a/platform/common/utils/hash_test.go b/platform/common/utils/hash_test.go
deleted file mode 100644
index d5660010f..000000000
--- a/platform/common/utils/hash_test.go
+++ /dev/null
@@ -1,31 +0,0 @@
-/*
-Copyright IBM Corp. All Rights Reserved.
-
-SPDX-License-Identifier: Apache-2.0
-*/
-
-package utils
-
-import (
-	"testing"
-
-	"github.com/stretchr/testify/assert"
-)
-
-func TestHashUInt64(t *testing.T) {
-	digest, err := HashUInt64([]byte("any_string?!"))
-	assert.NoError(t, err)
-	assert.Equal(t, uint64(12901064304492776662), digest)
-}
-
-func TestHashInt64(t *testing.T) {
-	digest, err := HashInt64([]byte("any_string?!"))
-	assert.NoError(t, err)
-	assert.Equal(t, int64(6450532152246388331), digest)
-}
-
-func TestHashUInt32(t *testing.T) {
-	digest, err := HashUInt32([]byte("any_string?!"))
-	assert.NoError(t, err)
-	assert.Equal(t, uint32(3003763105), digest)
-}
diff --git a/platform/fabric/core/generic/chaincode/discovery.go b/platform/fabric/core/generic/chaincode/discovery.go
index 7bff5052b..5c031defb 100644
--- a/platform/fabric/core/generic/chaincode/discovery.go
+++ b/platform/fabric/core/generic/chaincode/discovery.go
@@ -8,6 +8,7 @@ package chaincode
 
 import (
 	"context"
+	"crypto/sha256"
 	"strings"
 	"sync"
 	"time"
@@ -19,7 +20,6 @@ import (
 	"github.com/hyperledger-labs/fabric-smart-client/platform/view/view"
 	discovery2 "github.com/hyperledger/fabric-protos-go-apiv2/discovery"
 	"github.com/hyperledger/fabric-protos-go-apiv2/peer"
-	"github.com/hyperledger/fabric/common/util"
 	discovery "github.com/hyperledger/fabric/discovery/client"
 )
 
@@ -239,7 +239,8 @@ func (d *Discovery) query(req *discovery.Request) (discovery.Response, error) {
 	}
 	var ClientTLSCertHash []byte
 	if len(pc.Certificate().Certificate) != 0 {
-		ClientTLSCertHash = util.ComputeSHA256(pc.Certificate().Certificate[0])
+		h := sha256.Sum256(pc.Certificate().Certificate[0])
+		ClientTLSCertHash = h[:]
 	}
 	req.Authentication = &discovery2.AuthInfo{
 		ClientIdentity:    signerRaw,
diff --git a/platform/fabric/core/generic/channelprovider.go b/platform/fabric/core/generic/channelprovider.go
index 8fa6b174d..ed0cc556c 100644
--- a/platform/fabric/core/generic/channelprovider.go
+++ b/platform/fabric/core/generic/channelprovider.go
@@ -11,7 +11,6 @@ import (
 
 	"github.com/hyperledger-labs/fabric-smart-client/pkg/utils/errors"
 	driver3 "github.com/hyperledger-labs/fabric-smart-client/platform/common/driver"
-	"github.com/hyperledger-labs/fabric-smart-client/platform/common/utils/hash"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/fabric/core/generic/chaincode"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/fabric/core/generic/committer"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/fabric/core/generic/delivery"
@@ -78,7 +77,6 @@ type provider struct {
 	envelopeKVS           driver.EnvelopeStore
 	metadataKVS           driver.MetadataStore
 	endorserTxKVS         driver.EndorseTxStore
-	hasher                hash.Hasher
 	newVault              VaultConstructor
 	drivers               multiplexed.Driver
 	channelConfigProvider driver.ChannelConfigProvider
@@ -95,7 +93,6 @@ func NewChannelProvider(
 	envelopeKVS driver.EnvelopeStore,
 	metadataKVS driver.MetadataStore,
 	endorserTxKVS driver.EndorseTxStore,
-	hasher hash.Hasher,
 	drivers multiplexed.Driver,
 	newVault VaultConstructor,
 	channelConfigProvider driver.ChannelConfigProvider,
@@ -111,7 +108,6 @@ func NewChannelProvider(
 		envelopeKVS:           envelopeKVS,
 		metadataKVS:           metadataKVS,
 		endorserTxKVS:         endorserTxKVS,
-		hasher:                hasher,
 		newVault:              newVault,
 		drivers:               drivers,
 		channelConfigProvider: channelConfigProvider,
@@ -152,7 +148,6 @@ func (p *provider) NewChannel(nw driver.FabricNetworkService, channelName string
 		nw.ConfigService(),
 		peerService,
 		nw.LocalMembership().DefaultSigningIdentity(),
-		p.hasher,
 		channelConfig.FinalityWaitTimeout(),
 		p.useFilteredDelivery,
 	)
diff --git a/platform/fabric/core/generic/delivery/deliverclient.go b/platform/fabric/core/generic/delivery/deliverclient.go
index 4ed9cee51..fdafcc7df 100644
--- a/platform/fabric/core/generic/delivery/deliverclient.go
+++ b/platform/fabric/core/generic/delivery/deliverclient.go
@@ -26,10 +26,6 @@ import (
 	"google.golang.org/protobuf/types/known/timestamppb"
 )
 
-type Hasher interface {
-	Hash(msg []byte) (hash []byte, err error)
-}
-
 // TxEvent contains information for token transaction commit
 type TxEvent struct {
 	TxID         string
@@ -116,7 +112,7 @@ func (d *deliverClient) Certificate() *tls.Certificate {
 }
 
 // CreateDeliverEnvelope creates a signed envelope with SeekPosition_Newest for block
-func CreateDeliverEnvelope(channelID string, signingIdentity driver.SigningIdentity, cert *tls.Certificate, hasher Hasher, start *ab.SeekPosition) (*common.Envelope, error) {
+func CreateDeliverEnvelope(channelID string, signingIdentity driver.SigningIdentity, cert *tls.Certificate, start *ab.SeekPosition) (*common.Envelope, error) {
 	logger.Debugf("create delivery envelope starting from: [%s]", start)
 	creator, err := signingIdentity.Serialize()
 	if err != nil {
@@ -124,7 +120,7 @@ func CreateDeliverEnvelope(channelID string, signingIdentity driver.SigningIdent
 	}
 
 	// check for client certificate and compute SHA2-256 on certificate if present
-	tlsCertHash, err := grpc2.GetTLSCertHash(cert, hasher)
+	tlsCertHash, err := grpc2.GetTLSCertHash(cert)
 	if err != nil {
 		return nil, err
 	}
diff --git a/platform/fabric/core/generic/delivery/delivery.go b/platform/fabric/core/generic/delivery/delivery.go
index 25d6c2b87..7352dd015 100644
--- a/platform/fabric/core/generic/delivery/delivery.go
+++ b/platform/fabric/core/generic/delivery/delivery.go
@@ -67,7 +67,6 @@ type Services interface {
 type Delivery struct {
 	channel             string
 	channelConfig       driver.ChannelConfig
-	hasher              Hasher
 	NetworkName         string
 	LocalMembership     driver.LocalMembership
 	ConfigService       driver.ConfigService
@@ -90,7 +89,6 @@ var (
 func New(
 	networkName string,
 	channelConfig driver.ChannelConfig,
-	hasher Hasher,
 	LocalMembership driver.LocalMembership,
 	ConfigService driver.ConfigService,
 	PeerManager Services,
@@ -110,7 +108,6 @@ func New(
 		NetworkName:         networkName,
 		channel:             channelConfig.ID(),
 		channelConfig:       channelConfig,
-		hasher:              hasher,
 		LocalMembership:     LocalMembership,
 		ConfigService:       ConfigService,
 		Services:            PeerManager,
@@ -326,7 +323,6 @@ func (d *Delivery) connect(ctx context.Context) (DeliverStream, context.CancelFu
 		d.channel,
 		d.LocalMembership.DefaultSigningIdentity(),
 		deliverClient.Certificate(),
-		d.hasher,
 		d.GetStartPosition(newCtx),
 	)
 	if err != nil {
diff --git a/platform/fabric/core/generic/delivery/service.go b/platform/fabric/core/generic/delivery/service.go
index 2ff6a2221..6cd569c23 100644
--- a/platform/fabric/core/generic/delivery/service.go
+++ b/platform/fabric/core/generic/delivery/service.go
@@ -11,7 +11,6 @@ import (
 	"time"
 
 	"github.com/hyperledger-labs/fabric-smart-client/platform/common/utils/collections"
-	"github.com/hyperledger-labs/fabric-smart-client/platform/common/utils/hash"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/fabric/core/generic/fabricutils"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/fabric/driver"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/view/services/metrics"
@@ -25,7 +24,6 @@ type ValidationFlags []uint8
 type Service struct {
 	channel             string
 	channelConfig       driver.ChannelConfig
-	hasher              hash.Hasher
 	NetworkName         string
 	LocalMembership     driver.LocalMembership
 	ConfigService       driver.ConfigService
@@ -42,7 +40,6 @@ type Service struct {
 func NewService(
 	channel string,
 	channelConfig driver.ChannelConfig,
-	hasher hash.Hasher,
 	networkName string,
 	localMembership driver.LocalMembership,
 	configService driver.ConfigService,
@@ -58,7 +55,6 @@ func NewService(
 	deliveryService, err := New(
 		networkName,
 		channelConfig,
-		hasher,
 		localMembership,
 		configService,
 		peerManager,
@@ -77,7 +73,6 @@ func NewService(
 	return &Service{
 		channel:             channel,
 		channelConfig:       channelConfig,
-		hasher:              hasher,
 		NetworkName:         networkName,
 		LocalMembership:     localMembership,
 		ConfigService:       configService,
@@ -105,7 +100,6 @@ func (c *Service) scanBlock(ctx context.Context, vault Vault, callback driver.Bl
 	deliveryService, err := New(
 		c.NetworkName,
 		c.channelConfig,
-		c.hasher,
 		c.LocalMembership,
 		c.ConfigService,
 		c.PeerManager,
diff --git a/platform/fabric/core/generic/finality/deliveryqs.go b/platform/fabric/core/generic/finality/deliveryqs.go
index 5e79def46..71b151c2d 100644
--- a/platform/fabric/core/generic/finality/deliveryqs.go
+++ b/platform/fabric/core/generic/finality/deliveryqs.go
@@ -36,7 +36,7 @@ func (q *DeliveryScanQueryByID[T]) QueryByID(ctx context.Context, lastBlock driv
 func (q *DeliveryScanQueryByID[T]) queryByID(ctx context.Context, results collections.Set[string], ch chan []T, lastBlock uint64) {
 	defer close(ch)
 
-	startingBlock := MaxUint64(1, lastBlock-10)
+	startingBlock := max(1, lastBlock-10)
 	err := q.Delivery.ScanFromBlock(ctx, startingBlock, func(tx *fabric.ProcessedTransaction) (bool, error) {
 		if !results.Contains(tx.TxID()) {
 			return false, nil
@@ -57,10 +57,3 @@ func (q *DeliveryScanQueryByID[T]) queryByID(ctx context.Context, results collec
 		q.Logger.Errorf("failed scanning: %v", err)
 	}
 }
-
-func MaxUint64(a, b uint64) uint64 {
-	if a > b {
-		return a
-	}
-	return b
-}
diff --git a/platform/fabric/core/generic/finality/fabric.go b/platform/fabric/core/generic/finality/fabric.go
index 498ecd756..9051a7e40 100644
--- a/platform/fabric/core/generic/finality/fabric.go
+++ b/platform/fabric/core/generic/finality/fabric.go
@@ -24,17 +24,12 @@ type Services interface {
 	NewPeerClient(cc grpc.ConnectionConfig) (services.PeerClient, error)
 }
 
-type Hasher interface {
-	Hash(msg []byte) (hash []byte, err error)
-}
-
 type FabricFinality struct {
 	Logger                 logging.Logger
 	Channel                string
 	ConfigService          driver.ConfigService
 	Services               Services
 	DefaultSigningIdentity driver.SigningIdentity
-	Hasher                 Hasher
 	WaitForEventTimeout    time.Duration
 	useFiltered            bool
 }
@@ -45,7 +40,6 @@ func NewFabricFinality(
 	ConfigService driver.ConfigService,
 	peerService Services,
 	defaultSigningIdentity driver.SigningIdentity,
-	hasher Hasher,
 	waitForEventTimeout time.Duration,
 	useFiltered bool,
 ) (*FabricFinality, error) {
@@ -59,7 +53,6 @@ func NewFabricFinality(
 		ConfigService:          ConfigService,
 		Services:               peerService,
 		DefaultSigningIdentity: defaultSigningIdentity,
-		Hasher:                 hasher,
 		WaitForEventTimeout:    waitForEventTimeout,
 		useFiltered:            useFiltered,
 	}
@@ -100,7 +93,6 @@ func (d *FabricFinality) IsFinal(txID string, address string) error {
 		d.Channel,
 		d.DefaultSigningIdentity,
 		deliverClient.Certificate(),
-		d.Hasher,
 		&ab.SeekPosition{
 			Type: &ab.SeekPosition_Newest{
 				Newest: &ab.SeekNewest{},
diff --git a/platform/fabric/core/generic/msp/idemix/deserializer.go b/platform/fabric/core/generic/msp/idemix/deserializer.go
index 8956c19e2..3fc189d7a 100644
--- a/platform/fabric/core/generic/msp/idemix/deserializer.go
+++ b/platform/fabric/core/generic/msp/idemix/deserializer.go
@@ -14,7 +14,7 @@ import (
 	math "github.com/IBM/mathlib"
 	"github.com/hyperledger-labs/fabric-smart-client/pkg/utils/errors"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/common/driver"
-	"github.com/hyperledger-labs/fabric-smart-client/platform/common/utils/hash"
+	"github.com/hyperledger-labs/fabric-smart-client/platform/common/services/logging"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/view/view"
 )
 
@@ -121,5 +121,5 @@ func (i *Deserializer) Info(raw []byte, auditInfo []byte) (string, error) {
 }
 
 func (i *Deserializer) String() string {
-	return fmt.Sprintf("Idemix with IPK [%s]", hash.Hashable(i.Ipk).String())
+	return fmt.Sprintf("Idemix with IPK [%s]", logging.SHA256Base64(i.Ipk))
 }
diff --git a/platform/fabric/core/generic/msp/idemix/provider.go b/platform/fabric/core/generic/msp/idemix/provider.go
index 9b4fa00e7..f6407300f 100644
--- a/platform/fabric/core/generic/msp/idemix/provider.go
+++ b/platform/fabric/core/generic/msp/idemix/provider.go
@@ -18,7 +18,6 @@ import (
 	"github.com/hyperledger-labs/fabric-smart-client/pkg/utils/errors"
 	"github.com/hyperledger-labs/fabric-smart-client/pkg/utils/proto"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/common/services/logging"
-	"github.com/hyperledger-labs/fabric-smart-client/platform/common/utils/hash"
 	mspdriver "github.com/hyperledger-labs/fabric-smart-client/platform/fabric/core/generic/msp/driver"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/fabric/driver"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/view/view"
@@ -334,7 +333,7 @@ func (p *Provider) Identity(opts *driver.IdentityOptions) (view.Identity, []byte
 				[]byte(rh),
 			},
 		}
-		logger.Debugf("new idemix identity generated with [%s:%s]", enrollmentID, hash.Hashable(rh))
+		logger.Debugf("new idemix identity generated with [%s:%s]", enrollmentID, logging.SHA256Base64([]byte(rh)))
 		infoRaw, err = auditInfo.Bytes()
 		if err != nil {
 			return nil, nil, err
@@ -412,7 +411,7 @@ func (p *Provider) Info(raw []byte, auditInfo []byte) (string, error) {
 }
 
 func (p *Provider) String() string {
-	return fmt.Sprintf("Idemix Provider [%s]", hash.Hashable(p.Ipk).String())
+	return fmt.Sprintf("Idemix Provider [%s]", logging.SHA256Base64(p.Ipk))
 }
 
 func (p *Provider) EnrollmentID() string {
diff --git a/platform/fabric/core/generic/msp/x509/ecdsa.go b/platform/fabric/core/generic/msp/x509/ecdsa.go
index 3255a3f78..af0b10c64 100644
--- a/platform/fabric/core/generic/msp/x509/ecdsa.go
+++ b/platform/fabric/core/generic/msp/x509/ecdsa.go
@@ -20,7 +20,6 @@ import (
 	"github.com/hyperledger-labs/fabric-smart-client/pkg/utils/errors"
 	"github.com/hyperledger-labs/fabric-smart-client/pkg/utils/proto"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/common/driver"
-	utils2 "github.com/hyperledger-labs/fabric-smart-client/platform/common/utils"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/view/view"
 	"github.com/hyperledger/fabric-lib-go/bccsp/utils"
 	"github.com/hyperledger/fabric-protos-go-apiv2/msp"
@@ -74,10 +73,7 @@ func (d *edsaVerifier) Verify(message, sigma []byte) error {
 		return err
 	}
 
-	digest, err := utils2.SHA256(message)
-	if err != nil {
-		return err
-	}
+	digest := sha256.Sum256(message)
 
 	lowS, err := IsLowS(d.pk, signature.S)
 	if err != nil {
@@ -87,7 +83,7 @@ func (d *edsaVerifier) Verify(message, sigma []byte) error {
 		return errors.New("signature is not in lowS")
 	}
 
-	valid := ecdsa.Verify(d.pk, digest, signature.R, signature.S)
+	valid := ecdsa.Verify(d.pk, digest[:], signature.R, signature.S)
 	if !valid {
 		return errors.Errorf("signature not valid")
 	}
diff --git a/platform/fabric/core/generic/msp/x509/setup.go b/platform/fabric/core/generic/msp/x509/setup.go
index c1b7165d7..5ff04b2cf 100644
--- a/platform/fabric/core/generic/msp/x509/setup.go
+++ b/platform/fabric/core/generic/msp/x509/setup.go
@@ -7,7 +7,9 @@ SPDX-License-Identifier: Apache-2.0
 package x509
 
 import (
+	"crypto/sha256"
 	x5092 "crypto/x509"
+	"encoding/base64"
 	"encoding/hex"
 	"encoding/pem"
 	"os"
@@ -15,7 +17,6 @@ import (
 
 	"github.com/hyperledger-labs/fabric-smart-client/pkg/utils/errors"
 	"github.com/hyperledger-labs/fabric-smart-client/pkg/utils/proto"
-	"github.com/hyperledger-labs/fabric-smart-client/platform/common/utils/hash"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/fabric/core/generic/config"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/fabric/core/generic/msp/driver"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/fabric/core/generic/msp/x509/pkcs11"
@@ -226,7 +227,8 @@ func GetRevocationHandle(id []byte) ([]byte, error) {
 		if err != nil {
 			return nil, errors.WithMessage(err, "Failed to marshal PKI public key")
 		}
-		return []byte(hash.Hashable(encoded).String()), nil
+		h := sha256.Sum256(encoded)
+		return []byte(base64.StdEncoding.EncodeToString(h[:])), nil
 	default:
 		return nil, errors.Errorf("bad block type %s, expected CERTIFICATE", block.Type)
 	}
diff --git a/platform/fabric/core/generic/transaction/manager.go b/platform/fabric/core/generic/transaction/manager.go
index 213fd9c07..a96963a5f 100644
--- a/platform/fabric/core/generic/transaction/manager.go
+++ b/platform/fabric/core/generic/transaction/manager.go
@@ -53,7 +53,7 @@ func (m *Manager) NewTransaction(ctx context.Context, transactionType driver.Tra
 }
 
 func (m *Manager) NewTransactionFromBytes(ctx context.Context, channel string, raw []byte) (driver.Transaction, error) {
-	// logger.Debugf("new transaction from bytes [%s]", hash.Hashable(raw))
+	// logger.Debugf("new transaction from bytes [%s]", logging.Sha256Base64(raw))
 	txRaw := &SerializedTransaction{}
 	if err := json.Unmarshal(raw, txRaw); err != nil {
 		return nil, err
@@ -164,7 +164,7 @@ func (w *WrappedTransaction) Bytes() ([]byte, error) {
 		Type: w.TransactionType,
 		Raw:  raw,
 	})
-	// logger.Debugf("new transaction from bytes [%s]", hash.Hashable(out))
+	// logger.Debugf("new transaction from bytes [%s]", logging.Sha256Base64(out))
 
 	return out, err
 }
diff --git a/platform/fabric/sdk/dig/generic/providers.go b/platform/fabric/sdk/dig/generic/providers.go
index 98b4ff8ec..27555d56c 100644
--- a/platform/fabric/sdk/dig/generic/providers.go
+++ b/platform/fabric/sdk/dig/generic/providers.go
@@ -11,7 +11,6 @@ import (
 	committer2 "github.com/hyperledger-labs/fabric-smart-client/platform/common/core/generic/committer"
 	driver2 "github.com/hyperledger-labs/fabric-smart-client/platform/common/driver"
 	digutils "github.com/hyperledger-labs/fabric-smart-client/platform/common/utils/dig"
-	"github.com/hyperledger-labs/fabric-smart-client/platform/common/utils/hash"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/fabric/core"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/fabric/core/generic"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/fabric/core/generic/committer"
@@ -90,7 +89,6 @@ func NewChannelProvider(in struct {
 	MetadataKVS     driver.MetadataStore
 	EndorseTxKVS    driver.EndorseTxStore
 	Publisher       events.Publisher
-	Hasher          hash.Hasher
 	TracerProvider  tracing.Provider
 	Drivers         multiplexed.Driver
 	MetricsProvider metrics.Provider
@@ -102,7 +100,6 @@ func NewChannelProvider(in struct {
 		in.EnvelopeKVS,
 		in.MetadataKVS,
 		in.EndorseTxKVS,
-		in.Hasher,
 		in.Drivers,
 		func(_ string, configService driver.ConfigService, vaultStore driver2.VaultStore) (*vault.Vault, error) {
 			cachedVault := vault2.NewCachedVault(vaultStore, configService.VaultTXStoreCacheSize())
@@ -192,7 +189,6 @@ func NewChannelProvider(in struct {
 			return delivery.NewService(
 				channel,
 				channelConfig,
-				in.Hasher,
 				nw.Name(),
 				nw.LocalMembership(),
 				nw.ConfigService(),
diff --git a/platform/fabric/services/endorser/builder.go b/platform/fabric/services/endorser/builder.go
index c4dee7543..b0d944d4b 100644
--- a/platform/fabric/services/endorser/builder.go
+++ b/platform/fabric/services/endorser/builder.go
@@ -10,12 +10,10 @@ import (
 	"context"
 
 	"github.com/hyperledger-labs/fabric-smart-client/pkg/utils/errors"
-	"github.com/hyperledger-labs/fabric-smart-client/platform/common/utils/hash"
-	view2 "github.com/hyperledger-labs/fabric-smart-client/platform/view/services"
-	"github.com/hyperledger-labs/fabric-smart-client/platform/view/services/comm/session"
-
 	"github.com/hyperledger-labs/fabric-smart-client/platform/common/services/logging"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/fabric"
+	view2 "github.com/hyperledger-labs/fabric-smart-client/platform/view/services"
+	"github.com/hyperledger-labs/fabric-smart-client/platform/view/services/comm/session"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/view/view"
 )
 
@@ -91,7 +89,7 @@ func (t *Builder) newTransaction(ctx context.Context, creator []byte, network, c
 }
 
 func (t *Builder) newTransactionWithType(ctx context.Context, creator []byte, network, channel string, nonce, raw []byte, envelope bool, rawRequest []byte, tType *fabric.TransactionType) (*Transaction, error) {
-	logger.Debugf("NewTransaction [%s,%s,%s]", view.Identity(creator).UniqueID(), channel, hash.Hashable(raw).String())
+	logger.Debugf("NewTransaction [%s,%s,%s]", view.Identity(creator).UniqueID(), channel, logging.SHA256Base64(raw))
 	defer logger.Debugf("NewTransaction...done.")
 
 	fNetwork, err := fabric.GetFabricNetworkService(t.sp, network)
diff --git a/platform/fabric/services/endorser/transaction.go b/platform/fabric/services/endorser/transaction.go
index 648a6d79c..535777ae6 100644
--- a/platform/fabric/services/endorser/transaction.go
+++ b/platform/fabric/services/endorser/transaction.go
@@ -8,9 +8,9 @@ package endorser
 
 import (
 	"bytes"
+	"crypto/sha256"
 
 	"github.com/hyperledger-labs/fabric-smart-client/pkg/utils/errors"
-	"github.com/hyperledger-labs/fabric-smart-client/platform/common/utils/hash"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/fabric"
 	view2 "github.com/hyperledger-labs/fabric-smart-client/platform/view/services"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/view/view"
@@ -82,7 +82,8 @@ func (t *Transaction) Hash() ([]byte, error) {
 	if err != nil {
 		return nil, err
 	}
-	return hash.SHA256(raw)
+	h := sha256.Sum256(raw)
+	return h[:], nil
 }
 
 func (t *Transaction) SetFromBytes(raw []byte) error {
diff --git a/platform/fabric/services/state/transaction.go b/platform/fabric/services/state/transaction.go
index f2dd7c69f..b149ffa75 100755
--- a/platform/fabric/services/state/transaction.go
+++ b/platform/fabric/services/state/transaction.go
@@ -7,11 +7,10 @@ SPDX-License-Identifier: Apache-2.0
 package state
 
 import (
-	"encoding/base64"
 	"time"
 
 	"github.com/hyperledger-labs/fabric-smart-client/pkg/utils/errors"
-	"github.com/hyperledger-labs/fabric-smart-client/platform/common/utils/hash"
+	"github.com/hyperledger-labs/fabric-smart-client/platform/common/services/logging"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/fabric"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/fabric/services/endorser"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/view/view"
@@ -169,10 +168,10 @@ func NewSendTransactionView(tx *Transaction, parties ...view.Identity) *sendTran
 
 func (f *sendTransactionView) Call(context view.Context) (interface{}, error) {
 	for _, party := range f.parties {
-		logger.Debugf("Send transaction to [%s]", base64.StdEncoding.EncodeToString(hash.SHA256OrPanic(party)))
+		logger.Debugf("Send transaction to [%s]", logging.SHA256Base64(party))
 
 		if context.IsMe(party) {
-			logger.Debugf("This is me %s, do not send.", base64.StdEncoding.EncodeToString(party))
+			logger.Debugf("This is me %s, do not send.", logging.Base64(party))
 			continue
 		}
 
diff --git a/platform/fabricx/core/transaction/envelope.go b/platform/fabricx/core/transaction/envelope.go
index b5e7da6d8..dca6cc9a9 100644
--- a/platform/fabricx/core/transaction/envelope.go
+++ b/platform/fabricx/core/transaction/envelope.go
@@ -13,7 +13,7 @@ import (
 	"github.com/hyperledger-labs/fabric-smart-client/pkg/utils/errors"
 	"github.com/hyperledger-labs/fabric-smart-client/pkg/utils/proto"
 	cb "github.com/hyperledger/fabric-protos-go-apiv2/common"
-	"github.com/hyperledger/fabric/protoutil"
+	"github.com/hyperledger/fabric-x-common/protoutil"
 )
 
 type Envelope struct {
diff --git a/platform/fabricx/core/transaction/factory.go b/platform/fabricx/core/transaction/factory.go
index 236963b67..d1e638731 100644
--- a/platform/fabricx/core/transaction/factory.go
+++ b/platform/fabricx/core/transaction/factory.go
@@ -12,7 +12,7 @@ import (
 	driver2 "github.com/hyperledger-labs/fabric-smart-client/platform/common/driver"
 	ftransaction "github.com/hyperledger-labs/fabric-smart-client/platform/fabric/core/generic/transaction"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/fabric/driver"
-	"github.com/hyperledger/fabric/protoutil"
+	"github.com/hyperledger/fabric-x-common/protoutil"
 )
 
 type Factory struct {
diff --git a/platform/fabricx/core/transaction/manager.go b/platform/fabricx/core/transaction/manager.go
index 5fe7de13f..a30c7b61b 100644
--- a/platform/fabricx/core/transaction/manager.go
+++ b/platform/fabricx/core/transaction/manager.go
@@ -19,7 +19,7 @@ import (
 	"github.com/hyperledger-labs/fabric-smart-client/platform/view/view"
 	pb "github.com/hyperledger/fabric-protos-go-apiv2/peer"
 	"github.com/hyperledger/fabric-x-committer/api/protoblocktx"
-	"github.com/hyperledger/fabric/protoutil"
+	"github.com/hyperledger/fabric-x-common/protoutil"
 )
 
 type Manager struct {
diff --git a/platform/fabricx/core/transaction/marshal.go b/platform/fabricx/core/transaction/marshal.go
index 6b3841a05..74de3d401 100644
--- a/platform/fabricx/core/transaction/marshal.go
+++ b/platform/fabricx/core/transaction/marshal.go
@@ -14,7 +14,7 @@ import (
 	"github.com/hyperledger-labs/fabric-smart-client/platform/fabric/core/generic/fabricutils"
 	cb "github.com/hyperledger/fabric-protos-go-apiv2/common"
 	"github.com/hyperledger/fabric-x-committer/api/protoblocktx"
-	"github.com/hyperledger/fabric/protoutil"
+	"github.com/hyperledger/fabric-x-common/protoutil"
 	"go.uber.org/zap/zapcore"
 )
 
diff --git a/platform/fabricx/core/transaction/transaction.go b/platform/fabricx/core/transaction/transaction.go
index 32207e52d..dc8814cca 100644
--- a/platform/fabricx/core/transaction/transaction.go
+++ b/platform/fabricx/core/transaction/transaction.go
@@ -21,7 +21,7 @@ import (
 	pb "github.com/hyperledger/fabric-protos-go-apiv2/peer"
 	"github.com/hyperledger/fabric-x-committer/api/protoblocktx"
 	"github.com/hyperledger/fabric-x-committer/utils/signature"
-	"github.com/hyperledger/fabric/protoutil"
+	"github.com/hyperledger/fabric-x-common/protoutil"
 	"go.opentelemetry.io/otel/trace"
 	"go.uber.org/zap/zapcore"
 	"golang.org/x/net/context"
diff --git a/platform/fabricx/core/vault/marshal.go b/platform/fabricx/core/vault/marshal.go
index 4045e5e55..d958aa156 100644
--- a/platform/fabricx/core/vault/marshal.go
+++ b/platform/fabricx/core/vault/marshal.go
@@ -14,7 +14,7 @@ import (
 	"github.com/hyperledger-labs/fabric-smart-client/pkg/utils/proto"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/common/core/generic/vault"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/common/driver"
-	"github.com/hyperledger-labs/fabric-smart-client/platform/common/utils/hash"
+	"github.com/hyperledger-labs/fabric-smart-client/platform/common/services/logging"
 	"github.com/hyperledger/fabric-x-committer/api/protoblocktx"
 	"go.uber.org/zap"
 )
@@ -173,7 +173,7 @@ func (m *Marshaller) RWSetFromBytes(raw []byte, namespaces ...string) (*vault.Re
 func (m *Marshaller) Append(destination *vault.ReadWriteSet, raw []byte, namespaces ...string) error {
 	var txIn protoblocktx.Tx
 	if err := proto.Unmarshal(raw, &txIn); err != nil {
-		return errors.Wrapf(err, "failed unmarshalling tx from (%d)[%s]", len(raw), hash.Hashable(raw))
+		return errors.Wrapf(err, "failed unmarshalling tx from (%d)[%s]", len(raw), logging.SHA256Base64(raw))
 	}
 
 	if logger.IsEnabledFor(zap.DebugLevel) {
diff --git a/platform/fabricx/sdk/dig/providers.go b/platform/fabricx/sdk/dig/providers.go
index de17fdbfc..b3de02814 100644
--- a/platform/fabricx/sdk/dig/providers.go
+++ b/platform/fabricx/sdk/dig/providers.go
@@ -11,7 +11,6 @@ import (
 
 	"github.com/hyperledger-labs/fabric-smart-client/platform/common/core/generic/committer"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/common/driver"
-	"github.com/hyperledger-labs/fabric-smart-client/platform/common/utils/hash"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/fabric/core"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/fabric/core/generic"
 	fcommitter "github.com/hyperledger-labs/fabric-smart-client/platform/fabric/core/generic/committer"
@@ -84,7 +83,6 @@ func NewChannelProvider(in struct {
 	LedgerProvider          ledger.Provider
 	Publisher               events.Publisher
 	BlockDispatcherProvider *ledger.BlockDispatcherProvider
-	Hasher                  hash.Hasher
 	TracerProvider          trace.TracerProvider
 	MetricsProvider         metrics.Provider
 	QueryServiceProvider    queryservice.Provider
@@ -104,7 +102,6 @@ func NewChannelProvider(in struct {
 		in.EnvelopeStore,
 		in.MetadataStore,
 		in.EndorseTxStore,
-		in.Hasher,
 		in.Drivers,
 		func(channelName string, configService fdriver.ConfigService, vaultStore driver.VaultStore) (*vault2.Vault, error) {
 			return vault.New(configService, vaultStore, channelName, in.QueryServiceProvider, in.MetricsProvider, in.TracerProvider)
@@ -148,7 +145,6 @@ func NewChannelProvider(in struct {
 			return delivery.NewService(
 				channel,
 				channelConfig,
-				in.Hasher,
 				nw.Name(),
 				nw.LocalMembership(),
 				nw.ConfigService(),
diff --git a/platform/view/sdk/dig/sdk.go b/platform/view/sdk/dig/sdk.go
index 7b8d2f34c..07591f534 100644
--- a/platform/view/sdk/dig/sdk.go
+++ b/platform/view/sdk/dig/sdk.go
@@ -15,7 +15,6 @@ import (
 	dig2 "github.com/hyperledger-labs/fabric-smart-client/platform/common/sdk/dig"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/common/services/logging"
 	digutils "github.com/hyperledger-labs/fabric-smart-client/platform/common/utils/dig"
-	"github.com/hyperledger-labs/fabric-smart-client/platform/common/utils/hash"
 	endpoint2 "github.com/hyperledger-labs/fabric-smart-client/platform/view/sdk/dig/support/endpoint"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/view/services"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/view/services/comm"
@@ -83,9 +82,6 @@ func NewSDKFrom(baseSDK dig2.SDK, registry services.Registry) *SDK {
 
 func (p *SDK) Install() error {
 	err := errors.Join(
-		// Hasher
-		p.Container().Provide(hash.NewSHA256Provider, dig.As(new(hash.Hasher), new(server2.Hasher))),
-
 		// Events
 		p.Container().Provide(simple.NewEventBus, dig.As(new(events.EventSystem), new(events.Publisher), new(events.Subscriber))),
 		p.Container().Provide(func(system events.EventSystem) *events.Service { return &events.Service{EventSystem: system} }),
diff --git a/platform/view/services/comm/host/libp2p/pki.go b/platform/view/services/comm/host/libp2p/pki.go
index d06311aec..7e1115a18 100644
--- a/platform/view/services/comm/host/libp2p/pki.go
+++ b/platform/view/services/comm/host/libp2p/pki.go
@@ -8,9 +8,9 @@ package libp2p
 
 import (
 	"crypto/ecdsa"
+	"crypto/sha256"
 	"crypto/x509"
 
-	"github.com/hyperledger-labs/fabric-smart-client/platform/common/utils/hash"
 	"github.com/libp2p/go-libp2p/core/crypto"
 	"github.com/libp2p/go-libp2p/core/peer"
 )
@@ -34,7 +34,8 @@ func (p PKIDSynthesizer) PublicKeyID(key any) []byte {
 		}
 		return []byte(ID.String())
 	case []byte:
-		return hash.Hashable(d).Raw()
+		h := sha256.Sum256(d)
+		return h[:]
 	}
 	panic("unsupported key")
 }
diff --git a/platform/view/services/comm/host/rest/pki.go b/platform/view/services/comm/host/rest/pki.go
index f8647e4b0..11b707e67 100644
--- a/platform/view/services/comm/host/rest/pki.go
+++ b/platform/view/services/comm/host/rest/pki.go
@@ -8,10 +8,10 @@ package rest
 
 import (
 	"crypto/ecdsa"
+	"crypto/sha256"
 	"crypto/x509"
 
 	"github.com/hyperledger-labs/fabric-smart-client/pkg/utils/errors"
-	hash2 "github.com/hyperledger-labs/fabric-smart-client/platform/common/utils/hash"
 	"github.com/mr-tron/base58/base58"
 )
 
@@ -26,7 +26,8 @@ func (p PKIDSynthesizer) PublicKeyID(key any) []byte {
 		}
 		return id
 	case []byte:
-		return hash2.Hashable(d).Raw()
+		h := sha256.Sum256(d)
+		return h[:]
 	}
 	panic("unsupported key")
 }
@@ -37,9 +38,6 @@ func ecdsaPubKeyID(key *ecdsa.PublicKey) ([]byte, error) {
 		return nil, errors.Wrapf(err, "failed to marshal PK")
 	}
 
-	h, err := hash2.SHA256(marshaledPubKey)
-	if err != nil {
-		return nil, errors.Errorf("hash failure")
-	}
-	return []byte(base58.Encode(h)), nil
+	h := sha256.Sum256(marshaledPubKey)
+	return []byte(base58.Encode(h[:])), nil
 }
diff --git a/platform/view/services/comm/ids.go b/platform/view/services/comm/ids.go
index 58d6a8dc4..95abf9331 100644
--- a/platform/view/services/comm/ids.go
+++ b/platform/view/services/comm/ids.go
@@ -12,7 +12,6 @@ import (
 )
 
 func computeInternalSessionID(topic string, pkid []byte) string {
-	hasher := sha256.New()
-	hasher.Write(pkid)
-	return topic + "." + hex.EncodeToString(hasher.Sum(nil))
+	h := sha256.Sum256(pkid)
+	return topic + "." + hex.EncodeToString(h[:])
 }
diff --git a/platform/view/services/comm/session/json.go b/platform/view/services/comm/session/json.go
index 5680b1ede..579f59fda 100644
--- a/platform/view/services/comm/session/json.go
+++ b/platform/view/services/comm/session/json.go
@@ -13,7 +13,6 @@ import (
 
 	"github.com/hyperledger-labs/fabric-smart-client/pkg/utils/errors"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/common/services/logging"
-	"github.com/hyperledger-labs/fabric-smart-client/platform/common/utils/hash"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/view/view"
 )
 
@@ -103,7 +102,7 @@ func (j *jsonSession) ReceiveRawWithTimeout(d time.Duration) ([]byte, error) {
 		logger.ErrorfContext(j.context, "context done: %w", j.context.Err())
 		return nil, errors.Errorf("context done [%s]", j.context.Err())
 	}
-	logger.DebugfContext(j.context, "json session, received message [%s]", hash.Hashable(raw))
+	logger.DebugfContext(j.context, "json session, received message [%s]", logging.SHA256Base64(raw))
 	return raw, nil
 }
 
@@ -116,12 +115,12 @@ func (j *jsonSession) SendWithContext(ctx context.Context, state interface{}) er
 	if err != nil {
 		return err
 	}
-	logger.DebugfContext(ctx, "json session, send message [%s]", hash.Hashable(v).String())
+	logger.DebugfContext(ctx, "json session, send message [%s]", logging.SHA256Base64(v))
 	return j.s.SendWithContext(ctx, v)
 }
 
 func (j *jsonSession) SendRaw(ctx context.Context, raw []byte) error {
-	logger.DebugfContext(ctx, "json session, send raw message [%s]", hash.Hashable(raw).String())
+	logger.DebugfContext(ctx, "json session, send raw message [%s]", logging.SHA256Base64(raw))
 	return j.s.SendWithContext(ctx, raw)
 }
 
diff --git a/platform/view/services/config/provider.go b/platform/view/services/config/provider.go
index 8adc3388a..3c2a8939d 100644
--- a/platform/view/services/config/provider.go
+++ b/platform/view/services/config/provider.go
@@ -18,7 +18,6 @@ import (
 
 	"github.com/hyperledger-labs/fabric-smart-client/pkg/utils/errors"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/common/services/logging"
-	"github.com/hyperledger-labs/fabric-smart-client/platform/common/utils/hash"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/view/services"
 	viperutil "github.com/hyperledger-labs/fabric-smart-client/platform/view/services/config/viper"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/view/services/events"
@@ -206,7 +205,7 @@ func (p *Provider) loadFromRaw(raw []byte) error {
 
 	// read configuration
 	if err := p.Backend.ReadConfig(bytes.NewReader(raw)); err != nil {
-		return errors.Wrapf(err, "failed to read configuration from raw [%s]", hash.Hashable(raw))
+		return errors.Wrapf(err, "failed to read configuration from raw [%s]", logging.SHA256Base64(raw))
 	}
 	// post process
 	if err := p.substituteEnv(); err != nil {
diff --git a/platform/view/services/endpoint/pki.go b/platform/view/services/endpoint/pki.go
index f0da2dac5..87407b7f7 100644
--- a/platform/view/services/endpoint/pki.go
+++ b/platform/view/services/endpoint/pki.go
@@ -7,9 +7,8 @@ SPDX-License-Identifier: Apache-2.0
 package endpoint
 
 import (
+	"crypto/sha256"
 	"crypto/x509"
-
-	"github.com/hyperledger-labs/fabric-smart-client/platform/common/utils/hash"
 )
 
 type DefaultPublicKeyIDSynthesizer struct{}
@@ -19,5 +18,6 @@ func (d DefaultPublicKeyIDSynthesizer) PublicKeyID(key any) []byte {
 	if err != nil {
 		return nil
 	}
-	return hash.Hashable(raw).Raw()
+	h := sha256.Sum256(raw)
+	return h[:]
 }
diff --git a/platform/view/services/grpc/client.go b/platform/view/services/grpc/client.go
index 789c5f74a..fac4fca91 100644
--- a/platform/view/services/grpc/client.go
+++ b/platform/view/services/grpc/client.go
@@ -8,6 +8,7 @@ package grpc
 
 import (
 	"context"
+	"crypto/sha256"
 	"crypto/tls"
 	"crypto/x509"
 	"os"
@@ -38,22 +39,14 @@ func CertPoolOverride(pool *x509.CertPool) TLSOption {
 	}
 }
 
-// Hasher is the interface provides the hash function should be used for all token components.
-type Hasher interface {
-	Hash(msg []byte) (hash []byte, err error)
-}
-
 // GetTLSCertHash computes SHA2-256 on tls certificate
-func GetTLSCertHash(cert *tls.Certificate, hasher Hasher) ([]byte, error) {
+func GetTLSCertHash(cert *tls.Certificate) ([]byte, error) {
 	if cert == nil || len(cert.Certificate) == 0 {
 		return nil, nil
 	}
 
-	tlsCertHash, err := hasher.Hash(cert.Certificate[0])
-	if err != nil {
-		return nil, errors.WithMessage(err, "failed to compute SHA256 on client certificate")
-	}
-	return tlsCertHash, nil
+	tlsCertHash := sha256.Sum256(cert.Certificate[0])
+	return tlsCertHash[:], nil
 }
 
 // Client models a GRPC client
diff --git a/platform/view/services/id/ecdsa/ecdsa.go b/platform/view/services/id/ecdsa/ecdsa.go
index b0811da07..0c9732d58 100644
--- a/platform/view/services/id/ecdsa/ecdsa.go
+++ b/platform/view/services/id/ecdsa/ecdsa.go
@@ -57,17 +57,9 @@ func (e *Signer) Public() crypto.PublicKey {
 
 // Sign signs the digest and ensures that signatures use the Low S value.
 func (e *Signer) Sign(message []byte) ([]byte, error) {
-	hash := sha256.New()
-	n, err := hash.Write(message)
-	if err != nil {
-		return nil, errors.Wrap(err, "failed to write message to hash")
-	}
-	if n != len(message) {
-		return nil, errors.Errorf("hash failure")
-	}
-	digest := hash.Sum(nil)
+	digest := sha256.Sum256(message)
 
-	r, s, err := ecdsa.Sign(rand.Reader, e.PrivateKey, digest)
+	r, s, err := ecdsa.Sign(rand.Reader, e.PrivateKey, digest[:])
 	if err != nil {
 		return nil, err
 	}
@@ -105,17 +97,9 @@ func (d Verifier) Verify(message, sigma []byte) error {
 		return errors.Errorf("invalid s, must be smaller than half the order [%s][%s]", signature.S, GetCurveHalfOrdersAt(d.pk.Curve))
 	}
 
-	hash := sha256.New()
-	n, err := hash.Write(message)
-	if n != len(message) {
-		return errors.Errorf("hash failure")
-	}
-	if err != nil {
-		return err
-	}
-	digest := hash.Sum(nil)
+	digest := sha256.Sum256(message)
 
-	valid := ecdsa.Verify(d.pk, digest, signature.R, signature.S)
+	valid := ecdsa.Verify(d.pk, digest[:], signature.R, signature.S)
 	if !valid {
 		return errors.Errorf("signature not valid")
 	}
diff --git a/platform/view/services/id/x509/ecdsa.go b/platform/view/services/id/x509/ecdsa.go
index 83e0fb2a1..8ebd307ac 100644
--- a/platform/view/services/id/x509/ecdsa.go
+++ b/platform/view/services/id/x509/ecdsa.go
@@ -9,13 +9,13 @@ package x509
 import (
 	"crypto/ecdsa"
 	"crypto/elliptic"
+	"crypto/sha256"
 	"crypto/x509"
 	"encoding/asn1"
 	"encoding/pem"
 	"math/big"
 
 	"github.com/hyperledger-labs/fabric-smart-client/pkg/utils/errors"
-	"github.com/hyperledger-labs/fabric-smart-client/platform/common/utils"
 )
 
 var (
@@ -50,10 +50,7 @@ func (d *EdsaVerifier) Verify(message, sigma []byte) error {
 		return err
 	}
 
-	digest, err := utils.SHA256(message)
-	if err != nil {
-		return err
-	}
+	digest := sha256.Sum256(message)
 
 	lowS, err := IsLowS(d.pk, signature.S)
 	if err != nil {
@@ -63,7 +60,7 @@ func (d *EdsaVerifier) Verify(message, sigma []byte) error {
 		return errors.New("signature is not in lowS")
 	}
 
-	valid := ecdsa.Verify(d.pk, digest, signature.R, signature.S)
+	valid := ecdsa.Verify(d.pk, digest[:], signature.R, signature.S)
 	if !valid {
 		return errors.Errorf("signature not valid")
 	}
diff --git a/platform/view/services/storage/driver/sql/postgres/notifier.go b/platform/view/services/storage/driver/sql/postgres/notifier.go
index e15bc3bfb..2bed0e329 100644
--- a/platform/view/services/storage/driver/sql/postgres/notifier.go
+++ b/platform/view/services/storage/driver/sql/postgres/notifier.go
@@ -8,7 +8,9 @@ package postgres
 
 import (
 	"context"
+	"crypto/sha256"
 	"database/sql"
+	"encoding/binary"
 	"fmt"
 	"strconv"
 	"strings"
@@ -16,7 +18,6 @@ import (
 	"time"
 
 	"github.com/hyperledger-labs/fabric-smart-client/pkg/utils/errors"
-	"github.com/hyperledger-labs/fabric-smart-client/platform/common/utils"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/common/utils/collections"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/view/services/storage/driver"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/view/services/storage/driver/sql/common"
@@ -142,7 +143,7 @@ func (db *Notifier) GetSchema() string {
 		primaryKeys[i] = key.name
 	}
 	funcName := triggerFuncName(primaryKeys)
-	lock := utils.MustGet(utils.HashInt64([]byte(funcName)))
+	lock := createLockTag(funcName)
 	return fmt.Sprintf(`
 	SELECT pg_advisory_xact_lock(%d);
 	CREATE OR REPLACE FUNCTION %s() RETURNS TRIGGER AS $$
@@ -212,3 +213,8 @@ func concatenateIDs(keys []string) string {
 	}
 	return strings.Join(fields, fmt.Sprintf(" || '%s' || ", keySeparator))
 }
+
+func createLockTag(m string) uint64 {
+	h := sha256.Sum256([]byte(m))
+	return binary.BigEndian.Uint64(h[:])
+}
diff --git a/platform/view/services/storage/kvs/kvs_test.go b/platform/view/services/storage/kvs/kvs_test.go
index 8cba4e2f0..149af6a09 100644
--- a/platform/view/services/storage/kvs/kvs_test.go
+++ b/platform/view/services/storage/kvs/kvs_test.go
@@ -8,6 +8,7 @@ package kvs_test
 
 import (
 	"context"
+	"crypto/sha256"
 	"fmt"
 	"os"
 	"path"
@@ -16,7 +17,6 @@ import (
 	"time"
 
 	"github.com/hyperledger-labs/fabric-smart-client/platform/common/utils"
-	"github.com/hyperledger-labs/fabric-smart-client/platform/common/utils/hash"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/view/services/storage/driver"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/view/services/storage/driver/common"
 	mem "github.com/hyperledger-labs/fabric-smart-client/platform/view/services/storage/driver/memory"
@@ -102,7 +102,8 @@ func testRound(t *testing.T, driver driver.Driver) {
 		S: "hello",
 		I: 100,
 	}
-	k, err := sanitizer.Encode(hash.Hashable("Hello World").RawString())
+	h := sha256.Sum256([]byte("Hello World"))
+	k, err := sanitizer.Encode(string(h[:]))
 	assert.NoError(t, err)
 	assert.NoError(t, kvstore.Put(context.Background(), k, val))
 	assert.True(t, kvstore.Exists(context.Background(), k))
diff --git a/platform/view/services/view/context.go b/platform/view/services/view/context.go
index abcacae7b..d4daa707a 100644
--- a/platform/view/services/view/context.go
+++ b/platform/view/services/view/context.go
@@ -11,6 +11,7 @@ import (
 	"reflect"
 	"runtime/debug"
 
+	"github.com/hyperledger-labs/fabric-smart-client/pkg/utils"
 	"github.com/hyperledger-labs/fabric-smart-client/pkg/utils/errors"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/common/services/logging"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/common/utils/lazy"
@@ -82,7 +83,7 @@ func NewContextForInitiator(
 		return nil, errors.Errorf("a context should not be nil [%s]", string(debug.Stack()))
 	}
 	if len(contextID) == 0 {
-		contextID = GenerateUUID()
+		contextID = utils.GenerateUUID()
 	}
 	ctx, err := NewContext(
 		context,
diff --git a/platform/view/services/view/context_test.go b/platform/view/services/view/context_test.go
index 0d2a08e86..c2032c49b 100644
--- a/platform/view/services/view/context_test.go
+++ b/platform/view/services/view/context_test.go
@@ -11,6 +11,7 @@ import (
 	"sync"
 	"testing"
 
+	"github.com/hyperledger-labs/fabric-smart-client/pkg/utils"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/view/services/endpoint"
 	view2 "github.com/hyperledger-labs/fabric-smart-client/platform/view/services/view"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/view/services/view/mock"
@@ -106,7 +107,7 @@ func getSession(t *testing.T, wg *sync.WaitGroup, m Context) {
 }
 
 func getSessionByID(t *testing.T, wg *sync.WaitGroup, m Context) {
-	_, err := m.GetSessionByID(view2.GenerateUUID(), []byte("alice"))
+	_, err := m.GetSessionByID(utils.GenerateUUID(), []byte("alice"))
 	wg.Done()
 	assert.NoError(t, err)
 }
diff --git a/platform/view/services/view/grpc/client/client.go b/platform/view/services/view/grpc/client/client.go
index 5ce43437b..aeae8083d 100644
--- a/platform/view/services/view/grpc/client/client.go
+++ b/platform/view/services/view/grpc/client/client.go
@@ -17,7 +17,6 @@ import (
 	"github.com/hyperledger-labs/fabric-smart-client/pkg/utils/proto"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/common/services/logging"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/common/utils"
-	hash2 "github.com/hyperledger-labs/fabric-smart-client/platform/common/utils/hash"
 	grpc2 "github.com/hyperledger-labs/fabric-smart-client/platform/view/services/grpc"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/view/services/tracing"
 	protos2 "github.com/hyperledger-labs/fabric-smart-client/platform/view/services/view/grpc/server/protos"
@@ -78,11 +77,10 @@ type client struct {
 	RandomnessReader  io.Reader
 	Time              TimeFunc
 	SigningIdentity   SigningIdentity
-	hasher            hash2.Hasher
 	tracer            trace.Tracer
 }
 
-func NewClient(config *Config, sID SigningIdentity, hasher hash2.Hasher, tracerProvider tracing.Provider) (*client, error) {
+func NewClient(config *Config, sID SigningIdentity, tracerProvider tracing.Provider) (*client, error) {
 	// create a grpc client for view peer
 	grpcClient, err := grpc2.CreateGRPCClient(config.ConnectionConfig)
 	if err != nil {
@@ -99,7 +97,6 @@ func NewClient(config *Config, sID SigningIdentity, hasher hash2.Hasher, tracerP
 			GRPCClient:         grpcClient,
 		},
 		SigningIdentity: sID,
-		hasher:          hasher,
 		tracer:          tracerProvider.Tracer("client", tracing.WithMetricsOpts(tracing.MetricsOpts{})),
 	}, nil
 }
@@ -176,7 +173,7 @@ func (s *client) processCommand(ctx context.Context, sc *protos2.SignedCommand)
 		return nil, errors.Wrap(err, "failed view client process command")
 	}
 
-	logger.Debugf("parse answer [%s]", hash2.Hashable(scr.Response))
+	logger.Debugf("parse answer [%s]", logging.SHA256Base64(scr.Response))
 	commandResp := &protos2.CommandResponse{}
 	err = proto.Unmarshal(scr.Response, commandResp)
 	if err != nil {
@@ -241,7 +238,7 @@ func (s *client) CreateSignedCommand(payload interface{}, signingIdentity Signin
 	}
 
 	// check for client certificate and compute SHA2-256 on certificate if present
-	tlsCertHash, err := grpc2.GetTLSCertHash(s.ViewServiceClient.Certificate(), s.hasher)
+	tlsCertHash, err := grpc2.GetTLSCertHash(s.ViewServiceClient.Certificate())
 	if err != nil {
 		return nil, err
 	}
diff --git a/platform/view/services/view/grpc/client/cmd/view.go b/platform/view/services/view/grpc/client/cmd/view.go
index be597eb74..12e614af4 100644
--- a/platform/view/services/view/grpc/client/cmd/view.go
+++ b/platform/view/services/view/grpc/client/cmd/view.go
@@ -7,10 +7,8 @@ SPDX-License-Identifier: Apache-2.0
 package view
 
 import (
-	"crypto/sha256"
 	"encoding/base64"
 	"fmt"
-	"hash"
 	"io"
 	"os"
 	"path"
@@ -43,18 +41,6 @@ var (
 	userCert   string
 )
 
-type hasher struct{}
-
-func (*hasher) GetHash() hash.Hash {
-	return sha256.New()
-}
-
-func (*hasher) Hash(msg []byte) ([]byte, error) {
-	h := sha256.New()
-	h.Write(msg)
-	return h.Sum(nil), nil
-}
-
 func NewCmd() *cobra.Command {
 	cmd := &cobra.Command{
 		Use:   "view",
@@ -180,7 +166,6 @@ func invoke() error {
 			ConnectionConfig: cc,
 		},
 		signer,
-		&hasher{},
 		tracerProvider,
 	)
 	if err != nil {
diff --git a/platform/view/services/view/grpc/server/marshal.go b/platform/view/services/view/grpc/server/marshal.go
index aa6604ef3..b82daf49c 100644
--- a/platform/view/services/view/grpc/server/marshal.go
+++ b/platform/view/services/view/grpc/server/marshal.go
@@ -7,6 +7,7 @@ SPDX-License-Identifier: Apache-2.0
 package server
 
 import (
+	"crypto/sha256"
 	"time"
 
 	"github.com/hyperledger-labs/fabric-smart-client/pkg/utils/errors"
@@ -34,21 +35,15 @@ type SignerProvider interface {
 	GetSigner(identity view2.Identity) (sig.Signer, error)
 }
 
-type Hasher interface {
-	Hash(msg []byte) ([]byte, error)
-}
-
 // ResponseMarshaler produces SignedCommandResponse
 type ResponseMarshaler struct {
-	hasher           Hasher
 	identityProvider IdentityProvider
 	sigService       SignerProvider
 	time             TimeFunc
 }
 
-func NewResponseMarshaler(hasher Hasher, identityProvider IdentityProvider, sigService SignerProvider) (*ResponseMarshaler, error) {
+func NewResponseMarshaler(identityProvider IdentityProvider, sigService SignerProvider) (*ResponseMarshaler, error) {
 	return &ResponseMarshaler{
-		hasher:           hasher,
 		identityProvider: identityProvider,
 		sigService:       sigService,
 		time:             time.Now,
@@ -99,11 +94,8 @@ func (s *ResponseMarshaler) createSignedCommandResponse(cr *protos.CommandRespon
 }
 
 func (s *ResponseMarshaler) computeHash(data []byte) (hash []byte) {
-	hash, err := s.hasher.Hash(data)
-	if err != nil {
-		panic(errors.Errorf("failed computing hash on [% x]", data))
-	}
-	return
+	h := sha256.Sum256(data)
+	return h[:]
 }
 
 func commandResponseFromPayload(payload interface{}) (*protos.CommandResponse, error) {
diff --git a/platform/view/services/view/manager_test.go b/platform/view/services/view/manager_test.go
index fb43a6c55..b1bbcc889 100644
--- a/platform/view/services/view/manager_test.go
+++ b/platform/view/services/view/manager_test.go
@@ -12,6 +12,7 @@ import (
 	"testing"
 	"time"
 
+	"github.com/hyperledger-labs/fabric-smart-client/pkg/utils"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/view/services/metrics/disabled"
 	view2 "github.com/hyperledger-labs/fabric-smart-client/platform/view/services/view"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/view/services/view/mock"
@@ -136,7 +137,7 @@ func TestRegisterResponderWithViewIdentifier(t *testing.T) {
 }
 
 func registerFactory(t *testing.T, wg *sync.WaitGroup, m Manager) {
-	err := m.RegisterFactory(view2.GenerateUUID(), &DummyFactory{})
+	err := m.RegisterFactory(utils.GenerateUUID(), &DummyFactory{})
 	wg.Done()
 	assert.NoError(t, err)
 }
@@ -153,13 +154,13 @@ func callView(t *testing.T, wg *sync.WaitGroup, m Manager) {
 }
 
 func newView(t *testing.T, wg *sync.WaitGroup, m Manager) {
-	_, err := m.NewView(view2.GenerateUUID(), nil)
+	_, err := m.NewView(utils.GenerateUUID(), nil)
 	wg.Done()
 	assert.Error(t, err)
 }
 
 func initiateView(t *testing.T, wg *sync.WaitGroup, m Manager) {
-	_, err := m.Initiate(view2.GenerateUUID(), context.Background())
+	_, err := m.Initiate(utils.GenerateUUID(), context.Background())
 	wg.Done()
 	assert.Error(t, err)
 }
diff --git a/platform/view/services/view/uuid.go b/platform/view/services/view/uuid.go
deleted file mode 100644
index 37bed4d25..000000000
--- a/platform/view/services/view/uuid.go
+++ /dev/null
@@ -1,40 +0,0 @@
-/*
-Copyright IBM Corp. All Rights Reserved.
-
-SPDX-License-Identifier: Apache-2.0
-*/
-
-package view
-
-import (
-	"crypto/rand"
-	"fmt"
-	"io"
-)
-
-// GenerateBytesUUID returns a UUID based on RFC 4122 returning the generated bytes
-func GenerateBytesUUID() []byte {
-	uuid := make([]byte, 16)
-	_, err := io.ReadFull(rand.Reader, uuid)
-	if err != nil {
-		panic(fmt.Sprintf("Error generating UUID: %s", err))
-	}
-
-	// variant bits; see section 4.1.1
-	uuid[8] = uuid[8]&^0xc0 | 0x80
-
-	// version 4 (pseudo-random); see section 4.1.3
-	uuid[6] = uuid[6]&^0xf0 | 0x40
-
-	return uuid
-}
-
-// GenerateUUID returns a UUID based on RFC 4122
-func GenerateUUID() string {
-	uuid := GenerateBytesUUID()
-	return idBytesToStr(uuid)
-}
-
-func idBytesToStr(id []byte) string {
-	return fmt.Sprintf("%x-%x-%x-%x-%x", id[0:4], id[4:6], id[6:8], id[8:10], id[10:])
-}
diff --git a/platform/view/services/web/server/server.go b/platform/view/services/web/server/server.go
index 2fe250847..01ed4d4aa 100644
--- a/platform/view/services/web/server/server.go
+++ b/platform/view/services/web/server/server.go
@@ -15,6 +15,7 @@ import (
 	"os"
 	"time"
 
+	utils2 "github.com/hyperledger-labs/fabric-smart-client/pkg/utils"
 	"github.com/hyperledger-labs/fabric-smart-client/pkg/utils/errors"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/common/services/logging"
 	"github.com/hyperledger-labs/fabric-smart-client/platform/common/utils"
@@ -147,9 +148,9 @@ func (s *Server) initializeServer() {
 
 func (s *Server) HandlerChain(h http.Handler, secure bool) http.Handler {
 	if secure {
-		return middleware2.NewChain(middleware2.RequireCert(), middleware2.WithRequestID(GenerateUUID)).Handler(h)
+		return middleware2.NewChain(middleware2.RequireCert(), middleware2.WithRequestID(utils2.GenerateUUID)).Handler(h)
 	}
-	return middleware2.NewChain(middleware2.WithRequestID(GenerateUUID)).Handler(h)
+	return middleware2.NewChain(middleware2.WithRequestID(utils2.GenerateUUID)).Handler(h)
 }
 
 // RegisterHandler registers into the ServeMux a handler chain that borrows
diff --git a/platform/view/services/web/server/uuid.go b/platform/view/services/web/server/uuid.go
deleted file mode 100644
index c59215d63..000000000
--- a/platform/view/services/web/server/uuid.go
+++ /dev/null
@@ -1,40 +0,0 @@
-/*
-Copyright IBM Corp. All Rights Reserved.
-
-SPDX-License-Identifier: Apache-2.0
-*/
-
-package server
-
-import (
-	"crypto/rand"
-	"fmt"
-	"io"
-)
-
-// GenerateBytesUUID returns a UUID based on RFC 4122 returning the generated bytes
-func GenerateBytesUUID() []byte {
-	uuid := make([]byte, 16)
-	_, err := io.ReadFull(rand.Reader, uuid)
-	if err != nil {
-		panic(fmt.Sprintf("Error generating UUID: %s", err))
-	}
-
-	// variant bits; see section 4.1.1
-	uuid[8] = uuid[8]&^0xc0 | 0x80
-
-	// version 4 (pseudo-random); see section 4.1.3
-	uuid[6] = uuid[6]&^0xf0 | 0x40
-
-	return uuid
-}
-
-// GenerateUUID returns a UUID based on RFC 4122
-func GenerateUUID() string {
-	uuid := GenerateBytesUUID()
-	return idBytesToStr(uuid)
-}
-
-func idBytesToStr(id []byte) string {
-	return fmt.Sprintf("%x-%x-%x-%x-%x", id[0:4], id[4:6], id[6:8], id[8:10], id[10:])
-}