diff --git a/go.sum b/go.sum
index 9ca44d69e4b39c1b33d72251977b9bf29e5de3ee..4be9aee64cb4521d07133ec858a313da95469c58 100644
--- a/go.sum
+++ b/go.sum
@@ -19,6 +19,7 @@ github.com/dustin/go-humanize v1.0.0 h1:VSnTsYCnlFHaM2/igO1h6X3HA71jcobQuxemgkq4
 github.com/dustin/go-humanize v1.0.0/go.mod h1:HtrtbFcZ19U5GC7JDqmcUSB87Iq5E25KnS6fMYU6eOk=
 github.com/ethereum/go-ethereum v1.8.27 h1:d+gkiLaBDk5fn3Pe/xNVaMrB/ozI+AUB2IlVBp29IrY=
 github.com/ethereum/go-ethereum v1.8.27/go.mod h1:PwpWDrCLZrV+tfrhqqF6kPknbISMHaJv9Ln3kPCZLwY=
+github.com/fsnotify/fsnotify v1.4.7 h1:IXs+QLmnXW2CcXuY+8Mzv/fWEsPGWxqefPtCP5CnV9I=
 github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
 github.com/gdamore/encoding v1.0.0 h1:+7OoQ1Bc6eTm5niUzBa0Ctsh6JbMW6Ra+YNuAtDBdko=
 github.com/gdamore/encoding v1.0.0/go.mod h1:alR0ol34c49FCSBLjhosxzcPHQbf2trDkoo5dl+VrEg=
@@ -104,6 +105,7 @@ golang.org/x/sys v0.0.0-20190602015325-4c4f7f33c9ed h1:uPxWBzB3+mlnjy9W58qY1j/cj
 golang.org/x/sys v0.0.0-20190602015325-4c4f7f33c9ed/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/text v0.3.0 h1:g61tztE5qeGQ89tm6NTjjM9VPIm088od1l6aSorWRWg=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/fsnotify.v1 v1.4.7 h1:xOHLXZwVvI9hhs+cLKq5+I5onOuwQLhQwiu63xxlHs4=
 gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
diff --git a/plugins/bundleprocessor/bundleprocessor.go b/plugins/bundleprocessor/bundleprocessor.go
index 30c8b6d58df353ee39235320bcb3b013bd39f669..9dade9b6e6551106f9b672f7cb65fcc72982163a 100644
--- a/plugins/bundleprocessor/bundleprocessor.go
+++ b/plugins/bundleprocessor/bundleprocessor.go
@@ -1,7 +1,7 @@
 package bundleprocessor
 
 import (
-	"github.com/iotadevelopment/go/packages/ternary"
+	"github.com/iotaledger/goshimmer/packages/curl"
 	"github.com/iotaledger/goshimmer/packages/errors"
 	"github.com/iotaledger/goshimmer/packages/model/bundle"
 	"github.com/iotaledger/goshimmer/packages/model/transactionmetadata"
@@ -54,12 +54,18 @@ func ProcessSolidBundleHead(headTransaction *value_transaction.ValueTransaction)
 				newBundle.SetTransactionHashes(mapTransactionsToTransactionHashes(bundleTransactions))
 
 				if newBundle.IsValueBundle() {
-					var concatenatedBundleEssences = make(ternary.Trits, len(bundleTransactions)*value_transaction.BUNDLE_ESSENCE_SIZE)
+					var concatenatedBundleEssences = make(trinary.Trits, len(bundleTransactions)*value_transaction.BUNDLE_ESSENCE_SIZE)
 					for i, bundleTransaction := range bundleTransactions {
 						copy(concatenatedBundleEssences[value_transaction.BUNDLE_ESSENCE_SIZE*i:value_transaction.BUNDLE_ESSENCE_SIZE*(i+1)], bundleTransaction.GetBundleEssence())
 					}
 
-					// calc + set bundle hash
+					var resp = make(trinary.Trits, 243)
+
+					hasher := curl.NewCurl(243, 81)
+					hasher.Absorb(concatenatedBundleEssences, 0, len(concatenatedBundleEssences))
+					hasher.Squeeze(resp, 0, 243)
+
+					newBundle.SetBundleEssenceHash(trinary.MustTritsToTrytes(resp))
 				}
 
 				Events.BundleSolid.Trigger(newBundle, bundleTransactions)
diff --git a/plugins/bundleprocessor/bundleprocessor_test.go b/plugins/bundleprocessor/bundleprocessor_test.go
index 5da9cc4db4ee3140fa9e38a08129e1a20fafbf42..ee4cc3d467d3b7fe3c9a01cd9767d373deea87d3 100644
--- a/plugins/bundleprocessor/bundleprocessor_test.go
+++ b/plugins/bundleprocessor/bundleprocessor_test.go
@@ -29,6 +29,7 @@ func TestProcessSolidBundleHead(t *testing.T) {
 	Events.BundleSolid.Attach(events.NewClosure(func(bundle *bundle.Bundle, transactions []*value_transaction.ValueTransaction) {
 		fmt.Println("IT HAPPENED")
 		fmt.Println(bundle.GetHash())
+		fmt.Println(bundle.GetBundleEssenceHash())
 	}))
 
 	result, err := ProcessSolidBundleHead(tx1)
diff --git a/plugins/validator/plugin.go b/plugins/validator/plugin.go
index dce2129b6d57b502f65a8f1621149ce8fa7e7119..c0c7b64b70f7257d9997a6cc99cd196a336f129f 100644
--- a/plugins/validator/plugin.go
+++ b/plugins/validator/plugin.go
@@ -8,7 +8,6 @@ import (
 	"github.com/iotaledger/goshimmer/plugins/bundleprocessor"
 	"github.com/iotaledger/iota.go/address"
 	. "github.com/iotaledger/iota.go/consts"
-	"github.com/iotaledger/iota.go/kerl"
 	"github.com/iotaledger/iota.go/signing"
 	. "github.com/iotaledger/iota.go/trinary"
 )
@@ -63,7 +62,7 @@ func validateSignatures(bundleHash Hash, txs []*value_transaction.ValueTransacti
 		}
 
 		// validate all the fragments against the address using Kerl
-		valid, err := signing.ValidateSignatures(address, fragments, bundleHash, kerl.NewKerl())
+		valid, err := signing.ValidateSignatures(address, fragments, bundleHash, signing.NewKerl)
 		if err != nil {
 			return false, err
 		}