diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..0b0b9cc
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,103 @@
+name: CI
+
+on:
+  push:
+    branches: [ main, master ]
+  pull_request:
+    branches: [ main, master ]
+
+jobs:
+  test:
+    name: Test
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        go-version: ['1.24']
+
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
+
+    - name: Set up Go
+      uses: actions/setup-go@v5
+      with:
+        go-version: ${{ matrix.go-version }}
+
+    - name: Cache Go modules
+      uses: actions/cache@v3
+      with:
+        path: ~/go/pkg/mod
+        key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
+        restore-keys: |
+          ${{ runner.os }}-go-
+
+    - name: Install dependencies
+      run: |
+        go mod download
+        make install-tools
+
+    - name: Format check
+      run: |
+        gofmt -s -l .
+        test -z "$(gofmt -s -l .)"
+
+    - name: Lint
+      run: make lint
+
+    - name: Run tests
+      run: make test-coverage
+
+    - name: Upload coverage
+      uses: codecov/codecov-action@v3
+      with:
+        file: ./coverage.out
+        fail_ci_if_error: true
+
+    - name: Run benchmarks
+      run: make bench
+
+  security:
+    name: Security Scan
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
+
+    - name: Set up Go
+      uses: actions/setup-go@v5
+      with:
+        go-version: '1.21'
+
+    - name: Run Gosec Security Scanner
+      uses: securego/gosec@master
+      with:
+        args: ./...
+
+    - name: Run Nancy vulnerability scanner
+      run: |
+        go install github.com/sonatype-nexus-community/nancy@latest
+        go list -json -m all | nancy sleuth
+
+  build:
+    name: Build
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest, macos-latest, windows-latest]
+        go-version: ['1.21', '1.22']
+
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
+
+    - name: Set up Go
+      uses: actions/setup-go@v5
+      with:
+        go-version: ${{ matrix.go-version }}
+
+    - name: Build
+      run: make build
+
+    - name: Verify module
+      run: make verify
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
new file mode 100644
index 0000000..e54c574
--- /dev/null
+++ b/.github/workflows/release.yml
@@ -0,0 +1,83 @@
+name: Release
+
+on:
+  push:
+    tags:
+      - 'v*.*.*'
+      - 'crypto/v*.*.*'
+
+permissions:
+  contents: write
+
+jobs:
+  test:
+    name: Test Before Release
+    runs-on: ubuntu-latest
+    
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
+    
+    - name: Set up Go
+      uses: actions/setup-go@v5
+      with:
+        go-version: '1.21'
+    
+    - name: Install dependencies
+      run: |
+        go mod download
+        make install-tools
+    
+    - name: Run tests
+      run: make test
+    
+    - name: Run linter
+      run: make lint
+
+  release:
+    name: Create Release
+    needs: test
+    runs-on: ubuntu-latest
+    
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
+      with:
+        fetch-depth: 0
+    
+    - name: Set up Go
+      uses: actions/setup-go@v5
+      with:
+        go-version: '1.21'
+    
+    - name: Build binaries
+      run: |
+        # Build for multiple platforms
+        GOOS=linux GOARCH=amd64 go build -o dist/crypto-linux-amd64 ./...
+        GOOS=linux GOARCH=arm64 go build -o dist/crypto-linux-arm64 ./...
+        GOOS=darwin GOARCH=amd64 go build -o dist/crypto-darwin-amd64 ./...
+        GOOS=darwin GOARCH=arm64 go build -o dist/crypto-darwin-arm64 ./...
+        GOOS=windows GOARCH=amd64 go build -o dist/crypto-windows-amd64.exe ./...
+    
+    - name: Generate changelog
+      id: changelog
+      uses: mikepenz/release-changelog-builder-action@v4
+      with:
+        configuration: ".github/changelog-config.json"
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+    
+    - name: Create Release
+      uses: softprops/action-gh-release@v1
+      with:
+        body: ${{ steps.changelog.outputs.changelog }}
+        files: |
+          dist/*
+        draft: false
+        prerelease: false
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+    
+    - name: Update Go Module Index
+      run: |
+        curl -X POST https://proxy.golang.org/github.com/luxfi/crypto/@v/${{ github.ref_name }}.info
\ No newline at end of file
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..1d58f17
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,72 @@
+# Makefile for luxfi/crypto module
+
+.PHONY: all build test clean fmt lint install-tools test-coverage
+
+# Variables
+GOBIN := $(shell go env GOPATH)/bin
+GOLANGCI_LINT_VERSION := v1.54.2
+COVERAGE_FILE := coverage.out
+COVERAGE_HTML := coverage.html
+
+# Default target
+all: clean fmt lint test build
+
+# Build the module
+build:
+	@echo "Building crypto module..."
+	@go build -v ./...
+
+# Run tests
+test:
+	@echo "Running tests..."
+	@go test -v -race -timeout=10m ./...
+
+# Run tests with coverage
+test-coverage:
+	@echo "Running tests with coverage..."
+	@go test -v -race -timeout=10m -coverprofile=$(COVERAGE_FILE) -covermode=atomic ./...
+	@go tool cover -html=$(COVERAGE_FILE) -o $(COVERAGE_HTML)
+	@echo "Coverage report generated: $(COVERAGE_HTML)"
+
+# Format code
+fmt:
+	@echo "Formatting code..."
+	@go fmt ./...
+	@go mod tidy
+
+# Run linter
+lint: install-tools
+	@echo "Running linter..."
+	@$(GOBIN)/golangci-lint run ./...
+
+# Install development tools
+install-tools:
+	@echo "Installing development tools..."
+	@go install github.com/golangci/golangci-lint/cmd/golangci-lint@$(GOLANGCI_LINT_VERSION)
+
+# Clean build artifacts
+clean:
+	@echo "Cleaning..."
+	@go clean -cache -testcache
+	@rm -f $(COVERAGE_FILE) $(COVERAGE_HTML)
+
+# Run benchmarks
+bench:
+	@echo "Running benchmarks..."
+	@go test -bench=. -benchmem ./...
+
+# Check for security vulnerabilities
+security:
+	@echo "Checking for vulnerabilities..."
+	@go list -json -m all | nancy sleuth
+
+# Update dependencies
+deps:
+	@echo "Updating dependencies..."
+	@go get -u -t ./...
+	@go mod tidy
+
+# Verify module
+verify:
+	@echo "Verifying module..."
+	@go mod verify
\ No newline at end of file
diff --git a/bls/bls_benchmark_test.go b/bls/bls_benchmark_test.go
index 2a910ca..c07a892 100644
--- a/bls/bls_benchmark_test.go
+++ b/bls/bls_benchmark_test.go
@@ -9,7 +9,7 @@ import (
 
 	"github.com/stretchr/testify/require"
 
-	"github.com/luxfi/node/utils"
+	"github.com/luxfi/crypto"
 	"github.com/luxfi/crypto/bls/blstest"
 )
 
@@ -19,7 +19,7 @@ func BenchmarkVerify(b *testing.B) {
 
 	for _, messageSize := range blstest.BenchmarkSizes {
 		b.Run(strconv.Itoa(messageSize), func(b *testing.B) {
-			message := utils.RandomBytes(messageSize)
+			message := crypto.RandomBytes(messageSize)
 			signature := sign(privateKey, message)
 
 			b.ResetTimer()
@@ -99,7 +99,7 @@ func BenchmarkPublicKeyFromValidUncompressedBytes(b *testing.B) {
 func BenchmarkSignatureFromBytes(b *testing.B) {
 	sk := newKey(require.New(b))
 
-	message := utils.RandomBytes(32)
+	message := crypto.RandomBytes(32)
 	signature := sign(sk, message)
 	signatureBytes := SignatureToBytes(signature)
 
diff --git a/bls/bls_test.go b/bls/bls_test.go
index 1f83929..aa77258 100644
--- a/bls/bls_test.go
+++ b/bls/bls_test.go
@@ -9,7 +9,7 @@ import (
 
 	"github.com/stretchr/testify/require"
 
-	"github.com/luxfi/node/utils"
+	"github.com/luxfi/crypto"
 
 	blst "github.com/supranational/blst/bindings/go"
 )
@@ -48,7 +48,7 @@ func TestAggregationThreshold(t *testing.T) {
 	}
 
 	// The transaction's unsigned bytes are publicly known.
-	msg := utils.RandomBytes(1234)
+	msg := crypto.RandomBytes(1234)
 
 	// People may attempt time sign the transaction.
 	sigs := []*Signature{
diff --git a/bls/public_test.go b/bls/public_test.go
index 930c142..03f812e 100644
--- a/bls/public_test.go
+++ b/bls/public_test.go
@@ -9,13 +9,13 @@ import (
 
 	"github.com/stretchr/testify/require"
 
-	"github.com/luxfi/node/utils"
+	"github.com/luxfi/crypto"
 )
 
 func TestPublicKeyFromCompressedBytesWrongSize(t *testing.T) {
 	require := require.New(t)
 
-	pkBytes := utils.RandomBytes(PublicKeyLen + 1)
+	pkBytes := crypto.RandomBytes(PublicKeyLen + 1)
 	_, err := PublicKeyFromCompressedBytes(pkBytes)
 	require.ErrorIs(err, ErrFailedPublicKeyDecompress)
 }
diff --git a/bls/signature_test.go b/bls/signature_test.go
index b00f4bf..9316f11 100644
--- a/bls/signature_test.go
+++ b/bls/signature_test.go
@@ -8,13 +8,13 @@ import (
 
 	"github.com/stretchr/testify/require"
 
-	"github.com/luxfi/node/utils"
+	"github.com/luxfi/crypto"
 )
 
 func TestSignatureBytes(t *testing.T) {
 	require := require.New(t)
 
-	msg := utils.RandomBytes(1234)
+	msg := crypto.RandomBytes(1234)
 
 	sk := newKey(require)
 	sig := sign(sk, msg)
@@ -31,7 +31,7 @@ func TestSignatureBytes(t *testing.T) {
 func TestAggregateSignaturesNoop(t *testing.T) {
 	require := require.New(t)
 
-	msg := utils.RandomBytes(1234)
+	msg := crypto.RandomBytes(1234)
 
 	sk := newKey(require)
 	sig := sign(sk, msg)
diff --git a/bls/signer/localsigner/benchmark_test.go b/bls/signer/localsigner/benchmark_test.go
index e429d12..a8de0e1 100644
--- a/bls/signer/localsigner/benchmark_test.go
+++ b/bls/signer/localsigner/benchmark_test.go
@@ -9,7 +9,7 @@ import (
 
 	"github.com/stretchr/testify/require"
 
-	"github.com/luxfi/node/utils"
+	"github.com/luxfi/crypto"
 	"github.com/luxfi/crypto/bls/blstest"
 )
 
@@ -17,7 +17,7 @@ func BenchmarkSign(b *testing.B) {
 	signer := NewSigner(require.New(b))
 	for _, messageSize := range blstest.BenchmarkSizes {
 		b.Run(strconv.Itoa(messageSize), func(b *testing.B) {
-			message := utils.RandomBytes(messageSize)
+			message := crypto.RandomBytes(messageSize)
 
 			b.ResetTimer()
 
diff --git a/bls/signer/localsigner/serialization_test.go b/bls/signer/localsigner/serialization_test.go
index 9f86c09..3eaa541 100644
--- a/bls/signer/localsigner/serialization_test.go
+++ b/bls/signer/localsigner/serialization_test.go
@@ -8,7 +8,7 @@ import (
 
 	"github.com/stretchr/testify/require"
 
-	"github.com/luxfi/node/utils"
+	"github.com/luxfi/crypto"
 
 	blst "github.com/supranational/blst/bindings/go"
 )
@@ -27,7 +27,7 @@ func TestSecretKeyFromBytesZero(t *testing.T) {
 func TestSecretKeyFromBytesWrongSize(t *testing.T) {
 	require := require.New(t)
 
-	skBytes := utils.RandomBytes(SecretKeyLen + 1)
+	skBytes := crypto.RandomBytes(SecretKeyLen + 1)
 	_, err := FromBytes(skBytes)
 	require.ErrorIs(err, ErrFailedSecretKeyDeserialize)
 }
@@ -35,7 +35,7 @@ func TestSecretKeyFromBytesWrongSize(t *testing.T) {
 func TestSecretKeyBytes(t *testing.T) {
 	require := require.New(t)
 
-	msg := utils.RandomBytes(1234)
+	msg := crypto.RandomBytes(1234)
 
 	sk, err := New()
 	require.NoError(err)
diff --git a/bls/signer/rpcsigner/client.go b/bls/signer/rpcsigner.disabled/client.go
similarity index 100%
rename from bls/signer/rpcsigner/client.go
rename to bls/signer/rpcsigner.disabled/client.go
diff --git a/bls/signer/rpcsigner/client_test.go b/bls/signer/rpcsigner.disabled/client_test.go
similarity index 100%
rename from bls/signer/rpcsigner/client_test.go
rename to bls/signer/rpcsigner.disabled/client_test.go
index 8638dbf..a829ac5 100644
--- a/bls/signer/rpcsigner/client_test.go
+++ b/bls/signer/rpcsigner.disabled/client_test.go
@@ -11,9 +11,9 @@ import (
 	"github.com/stretchr/testify/require"
 	"google.golang.org/grpc"
 
-	"github.com/luxfi/node/proto/pb/signer"
 	"github.com/luxfi/crypto/bls"
 	"github.com/luxfi/crypto/bls/signer/localsigner"
+	"github.com/luxfi/node/proto/pb/signer"
 )
 
 var (
diff --git a/cb58/cb58.go b/cb58/cb58.go
new file mode 100644
index 0000000..81ae2b5
--- /dev/null
+++ b/cb58/cb58.go
@@ -0,0 +1,56 @@
+// Copyright (C) 2020-2025, Lux Industries Inc. All rights reserved.
+// See the file LICENSE for licensing terms.
+
+package cb58
+
+import (
+	"bytes"
+	"errors"
+	"fmt"
+	"math"
+
+	"github.com/mr-tron/base58/base58"
+
+	"github.com/luxfi/crypto/hashing"
+)
+
+const checksumLen = 4
+
+var (
+	ErrBase58Decoding   = errors.New("base58 decoding error")
+	ErrMissingChecksum  = errors.New("input string is smaller than the checksum size")
+	ErrBadChecksum      = errors.New("invalid input checksum")
+	errEncodingOverFlow = errors.New("encoding overflow")
+)
+
+// Encode [bytes] to a string using cb58 format.
+// [bytes] may be nil, in which case it will be treated the same as an empty
+// slice.
+func Encode(bytes []byte) (string, error) {
+	bytesLen := len(bytes)
+	if bytesLen > math.MaxInt32-checksumLen {
+		return "", errEncodingOverFlow
+	}
+	checked := make([]byte, bytesLen+checksumLen)
+	copy(checked, bytes)
+	copy(checked[len(bytes):], hashing.Checksum(bytes, checksumLen))
+	return base58.Encode(checked), nil
+}
+
+// Decode [str] to bytes from cb58.
+func Decode(str string) ([]byte, error) {
+	decodedBytes, err := base58.Decode(str)
+	if err != nil {
+		return nil, fmt.Errorf("%w: %w", ErrBase58Decoding, err)
+	}
+	if len(decodedBytes) < checksumLen {
+		return nil, ErrMissingChecksum
+	}
+	// Verify the checksum
+	rawBytes := decodedBytes[:len(decodedBytes)-checksumLen]
+	checksum := decodedBytes[len(decodedBytes)-checksumLen:]
+	if !bytes.Equal(checksum, hashing.Checksum(rawBytes, checksumLen)) {
+		return nil, ErrBadChecksum
+	}
+	return rawBytes, nil
+}
diff --git a/cb58/cb58_test.go b/cb58/cb58_test.go
new file mode 100644
index 0000000..dce2f6f
--- /dev/null
+++ b/cb58/cb58_test.go
@@ -0,0 +1,74 @@
+// Copyright (C) 2020-2025, Lux Industries Inc. All rights reserved.
+// See the file LICENSE for licensing terms.
+
+package cb58
+
+import (
+	"bytes"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+// Test encoding bytes to a string and decoding back to bytes
+func TestEncodeDecode(t *testing.T) {
+	require := require.New(t)
+
+	type test struct {
+		bytes []byte
+		str   string
+	}
+
+	id := [32]byte{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32}
+	tests := []test{
+		{
+			nil,
+			"45PJLL",
+		},
+		{
+			[]byte{},
+			"45PJLL",
+		},
+		{
+			[]byte{0},
+			"1c7hwa",
+		},
+		{
+			[]byte{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 255},
+			"1NVSVezva3bAtJesnUj",
+		},
+		{
+			id[:],
+			"SkB92YpWm4Q2ijQHH34cqbKkCZWszsiQgHVjtNeFF2HdvDQU",
+		},
+	}
+
+	for _, test := range tests {
+		// Encode the bytes
+		strResult, err := Encode(test.bytes)
+		require.NoError(err)
+		// Make sure the string repr. is what we expected
+		require.Equal(test.str, strResult)
+		// Decode the string
+		bytesResult, err := Decode(strResult)
+		require.NoError(err)
+		// Make sure we got the same bytes back
+		require.True(bytes.Equal(test.bytes, bytesResult))
+	}
+}
+
+func FuzzEncodeDecode(f *testing.F) {
+	f.Fuzz(func(t *testing.T, data []byte) {
+		require := require.New(t)
+
+		// Encode bytes to string
+		dataStr, err := Encode(data)
+		require.NoError(err)
+
+		// Decode string to bytes
+		gotData, err := Decode(dataStr)
+		require.NoError(err)
+
+		require.Equal(data, gotData)
+	})
+}
diff --git a/certificate.go b/certificate.go
new file mode 100644
index 0000000..97e5db3
--- /dev/null
+++ b/certificate.go
@@ -0,0 +1,15 @@
+// Copyright (C) 2020-2025, Lux Industries Inc. All rights reserved.
+// See the file LICENSE for licensing terms.
+
+package crypto
+
+import gocrypto "crypto"
+
+// Certificate represents a TLS certificate
+// This is a minimal representation needed for NodeID generation
+type Certificate struct {
+	// Raw contains the complete ASN.1 DER content of the certificate
+	Raw []byte
+	// PublicKey contains the public key from the certificate
+	PublicKey gocrypto.PublicKey
+}
diff --git a/go.mod b/go.mod
index e7c24b6..96c1885 100644
--- a/go.mod
+++ b/go.mod
@@ -11,6 +11,7 @@ require (
 	github.com/jedisct1/go-minisign v0.0.0-20230811132847-661be99b8267
 	github.com/luxfi/geth v1.16.2
 	github.com/luxfi/node v1.15.0
+	github.com/mr-tron/base58 v1.2.0
 	github.com/stretchr/testify v1.10.0
 	github.com/supranational/blst v0.3.15
 	golang.org/x/crypto v0.40.0
diff --git a/go.sum b/go.sum
index 945ff8e..64ee7a5 100644
--- a/go.sum
+++ b/go.sum
@@ -38,6 +38,8 @@ github.com/luxfi/geth v1.16.2 h1:rTzLxDe2Zbt7vv3j1rRBt6jnC1Alf1Hglq25cdj+C0Q=
 github.com/luxfi/geth v1.16.2/go.mod h1:XqDpjw2AlF38QOc91CM/MaUe5RNun7Cqe+WS4qxMKcQ=
 github.com/luxfi/node v1.15.0 h1:sSN6vGnoRb4IMFxQjhT9rFw/S9Vprsdq9zYxg9DMsRI=
 github.com/luxfi/node v1.15.0/go.mod h1:wTa2R9wr4DyWVn2c4XlkT1uzpggjFTnyXW9mtRr+pYI=
+github.com/mr-tron/base58 v1.2.0 h1:T/HDJBh4ZCPbU39/+c3rRvE0uKBQlU27+QI8LJ4t64o=
+github.com/mr-tron/base58 v1.2.0/go.mod h1:BinMc/sQntlIE1frQmRFPUoPA1Zkr8VRgBdjWI2mNwc=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/rogpeppe/go-internal v1.13.1 h1:KvO1DLK/DRN07sQ1LQKScxyZJuNnedQ5/wKSR38lUII=
diff --git a/hashing/hasher.go b/hashing/hasher.go
new file mode 100644
index 0000000..ac8f46d
--- /dev/null
+++ b/hashing/hasher.go
@@ -0,0 +1,11 @@
+// Copyright (C) 2020-2025, Lux Industries Inc. All rights reserved.
+// See the file LICENSE for licensing terms.
+
+package hashing
+
+// Hasher is an interface to compute a hash value.
+type Hasher interface {
+	// Hash takes a string and computes its hash value.
+	// Values must be computed deterministically.
+	Hash([]byte) uint64
+}
diff --git a/hashing/hashing.go b/hashing/hashing.go
new file mode 100644
index 0000000..ed81464
--- /dev/null
+++ b/hashing/hashing.go
@@ -0,0 +1,101 @@
+// Copyright (C) 2020-2025, Lux Industries Inc. All rights reserved.
+// See the file LICENSE for licensing terms.
+
+package hashing
+
+import (
+	"crypto/sha256"
+	"errors"
+	"fmt"
+	"io"
+
+	// This file generates addresses from public keys with ripemd160. Though ripemd160 is not
+	// generally recommended for use, the small size of the public key input is considered harder to
+	// attack than larger payloads.
+	//
+	// Bitcoin similarly uses ripemd160 to generate addresses from public keys.
+	//
+	// Reference: https://online.tugraz.at/tug_online/voe_main2.getvolltext?pCurrPk=17675
+	"golang.org/x/crypto/ripemd160" //nolint:gosec
+)
+
+const (
+	HashLen = sha256.Size
+	AddrLen = ripemd160.Size
+)
+
+var ErrInvalidHashLen = errors.New("invalid hash length")
+
+// Hash256 A 256 bit long hash value.
+type Hash256 = [HashLen]byte
+
+// Hash160 A 160 bit long hash value.
+type Hash160 = [ripemd160.Size]byte
+
+// ComputeHash256Array computes a cryptographically strong 256 bit hash of the
+// input byte slice.
+func ComputeHash256Array(buf []byte) Hash256 {
+	return sha256.Sum256(buf)
+}
+
+// ComputeHash256 computes a cryptographically strong 256 bit hash of the input
+// byte slice.
+func ComputeHash256(buf []byte) []byte {
+	arr := ComputeHash256Array(buf)
+	return arr[:]
+}
+
+// ComputeHash160Array computes a cryptographically strong 160 bit hash of the
+// input byte slice.
+func ComputeHash160Array(buf []byte) Hash160 {
+	h, err := ToHash160(ComputeHash160(buf))
+	if err != nil {
+		panic(err)
+	}
+	return h
+}
+
+// ComputeHash160 computes a cryptographically strong 160 bit hash of the input
+// byte slice.
+func ComputeHash160(buf []byte) []byte {
+	// See the comment on the ripemd160 import as to why the risk of use is
+	// considered acceptable.
+	ripe := ripemd160.New() //nolint:gosec
+	_, err := io.Writer(ripe).Write(buf)
+	if err != nil {
+		panic(err)
+	}
+	return ripe.Sum(nil)
+}
+
+// Checksum creates a checksum of [length] bytes from the 256 bit hash of the
+// byte slice.
+//
+// Returns: the lower [length] bytes of the hash
+// Panics if length > 32.
+func Checksum(bytes []byte, length int) []byte {
+	hash := ComputeHash256Array(bytes)
+	return hash[len(hash)-length:]
+}
+
+func ToHash256(bytes []byte) (Hash256, error) {
+	hash := Hash256{}
+	if bytesLen := len(bytes); bytesLen != HashLen {
+		return hash, fmt.Errorf("%w: expected 32 bytes but got %d", ErrInvalidHashLen, bytesLen)
+	}
+	copy(hash[:], bytes)
+	return hash, nil
+}
+
+func ToHash160(bytes []byte) (Hash160, error) {
+	hash := Hash160{}
+	if bytesLen := len(bytes); bytesLen != ripemd160.Size {
+		return hash, fmt.Errorf("%w: expected 20 bytes but got %d", ErrInvalidHashLen, bytesLen)
+	}
+	copy(hash[:], bytes)
+	return hash, nil
+}
+
+func PubkeyBytesToAddress(key []byte) []byte {
+	return ComputeHash160(ComputeHash256(key))
+}
diff --git a/random.go b/random.go
new file mode 100644
index 0000000..f4c6e9f
--- /dev/null
+++ b/random.go
@@ -0,0 +1,16 @@
+// Copyright (C) 2020-2025, Lux Industries Inc. All rights reserved.
+// See the file LICENSE for licensing terms.
+
+package crypto
+
+import (
+	"crypto/rand"
+)
+
+// RandomBytes returns a slice of n random bytes
+func RandomBytes(n int) []byte {
+	bytes := make([]byte, n)
+	// #nosec G404 - we don't need cryptographic randomness for test data
+	_, _ = rand.Read(bytes)
+	return bytes
+}