crypto: delete dead mldsa/.old — unreferenced legacy cgo/tests

The canonical ML-DSA package (mldsa/) is the one way; mldsa/.old was
unreferenced legacy code. Build stays green (go build ./mldsa/ ok).

Co-authored-by: Hanzo Dev <dev@hanzo.ai>
This commit is contained in:
zeekay
2026-07-25 12:09:19 -07:00
committed by lux
co-authored by Hanzo Dev
parent 482faf9bea
commit c436347937
3 changed files with 0 additions and 825 deletions
-20
View File
@@ -1,20 +0,0 @@
//go:build cgo
// +build cgo
package mldsa
// This file contains CGO-optimized implementations that are only compiled
// when CGO is explicitly enabled with CGO_ENABLED=1
//
// CGO optimizations reserved - currently using pure Go implementation.
// Future optimizations could include:
// - ML-DSA-44/65/87 from NIST reference implementation
// - CRYSTALS-Dilithium optimized implementations
// - AVX2/AVX512 optimizations for x86_64
// - NEON optimizations for ARM64
// - Batch verification optimizations
//
// The pure Go implementation provides:
// - Full ML-DSA compliance with FIPS 204
// - Deterministic signatures
// - Cross-platform compatibility
-409
View File
@@ -1,409 +0,0 @@
package mldsa
import (
"bytes"
"crypto/rand"
"testing"
)
func TestMLDSAKeyGeneration(t *testing.T) {
modes := []struct {
name string
mode Mode
pubSize int
privSize int
sigSize int
}{
{"ML-DSA-44", MLDSA44, MLDSA44PublicKeySize, MLDSA44PrivateKeySize, MLDSA44SignatureSize},
{"ML-DSA-65", MLDSA65, MLDSA65PublicKeySize, MLDSA65PrivateKeySize, MLDSA65SignatureSize},
{"ML-DSA-87", MLDSA87, MLDSA87PublicKeySize, MLDSA87PrivateKeySize, MLDSA87SignatureSize},
}
for _, tt := range modes {
t.Run(tt.name, func(t *testing.T) {
// Test key generation
privKey, err := GenerateKey(rand.Reader, tt.mode)
if err != nil {
t.Fatalf("GenerateKey failed: %v", err)
}
// Check key sizes
privBytes := privKey.Bytes()
if len(privBytes) != tt.privSize {
t.Errorf("Private key size mismatch: got %d, want %d", len(privBytes), tt.privSize)
}
pubBytes := privKey.PublicKey.Bytes()
if len(pubBytes) != tt.pubSize {
t.Errorf("Public key size mismatch: got %d, want %d", len(pubBytes), tt.pubSize)
}
// Test nil reader
_, err = GenerateKey(nil, tt.mode)
if err == nil {
t.Error("GenerateKey should fail with nil reader")
}
})
}
}
func TestMLDSASignVerify(t *testing.T) {
modes := []Mode{MLDSA44, MLDSA65, MLDSA87}
for _, mode := range modes {
t.Run(mode.String(), func(t *testing.T) {
privKey, err := GenerateKey(rand.Reader, mode)
if err != nil {
t.Fatalf("GenerateKey failed: %v", err)
}
message := []byte("Test message for ML-DSA signature")
// Sign message
signature, err := privKey.Sign(rand.Reader, message, nil)
if err != nil {
t.Fatalf("Sign failed: %v", err)
}
// Verify signature
valid := privKey.PublicKey.Verify(message, signature, nil)
if !valid {
t.Error("Valid signature failed verification")
}
// Test invalid signature
signature[0] ^= 0xFF
valid = privKey.PublicKey.Verify(message, signature, nil)
if valid {
t.Error("Invalid signature passed verification")
}
signature[0] ^= 0xFF // restore
// Test wrong message
wrongMessage := []byte("Wrong message")
valid = privKey.PublicKey.Verify(wrongMessage, signature, nil)
if valid {
t.Error("Signature verified with wrong message")
}
// Test empty message
emptyMessage := []byte{}
emptySig, err := privKey.Sign(rand.Reader, emptyMessage, nil)
if err != nil {
t.Fatalf("Sign empty message failed: %v", err)
}
valid = privKey.PublicKey.Verify(emptyMessage, emptySig, nil)
if !valid {
t.Error("Empty message signature failed verification")
}
})
}
}
func TestMLDSAKeySerialization(t *testing.T) {
modes := []Mode{MLDSA44, MLDSA65, MLDSA87}
for _, mode := range modes {
t.Run(mode.String(), func(t *testing.T) {
// Generate original key
origKey, err := GenerateKey(rand.Reader, mode)
if err != nil {
t.Fatalf("GenerateKey failed: %v", err)
}
// Serialize and deserialize private key using FromBytes functions
privBytes := origKey.Bytes()
newPrivKey, err := PrivateKeyFromBytes(privBytes, mode)
if err != nil {
t.Fatalf("PrivateKeyFromBytes failed: %v", err)
}
// Check keys are equal
if !bytes.Equal(origKey.Bytes(), newPrivKey.Bytes()) {
t.Error("Private key serialization failed")
}
// Serialize and deserialize public key
pubBytes := origKey.PublicKey.Bytes()
newPubKey, err := PublicKeyFromBytes(pubBytes, mode)
if err != nil {
t.Fatalf("PublicKeyFromBytes failed: %v", err)
}
if !bytes.Equal(origKey.PublicKey.Bytes(), newPubKey.Bytes()) {
t.Error("Public key serialization failed")
}
// Test signature with deserialized keys
message := []byte("Test serialization")
signature, err := newPrivKey.Sign(rand.Reader, message, nil)
if err != nil {
t.Fatalf("Sign with deserialized key failed: %v", err)
}
valid := newPubKey.Verify(message, signature, nil)
if !valid {
t.Error("Verification with deserialized key failed")
}
})
}
}
func TestMLDSADeterministicSignature(t *testing.T) {
modes := []Mode{MLDSA44, MLDSA65, MLDSA87}
for _, mode := range modes {
t.Run(mode.String(), func(t *testing.T) {
privKey, err := GenerateKey(rand.Reader, mode)
if err != nil {
t.Fatalf("GenerateKey failed: %v", err)
}
message := []byte("Randomized signature test")
// ML-DSA requires a random source - test that nil rand is rejected
_, err = privKey.Sign(nil, message, nil)
if err == nil {
t.Error("Sign with nil rand should fail")
}
// Sign same message multiple times with proper rand
sig1, err := privKey.Sign(rand.Reader, message, nil)
if err != nil {
t.Fatalf("First sign failed: %v", err)
}
sig2, err := privKey.Sign(rand.Reader, message, nil)
if err != nil {
t.Fatalf("Second sign failed: %v", err)
}
// Note: The circl ML-DSA implementation may produce the same signature
// for the same message when using the same random state.
// This is implementation-specific behavior and doesn't indicate
// a security issue - the randomness is properly used internally.
t.Logf("Signature 1 length: %d, Signature 2 length: %d", len(sig1), len(sig2))
// Both signatures should verify
if !privKey.PublicKey.Verify(message, sig1, nil) {
t.Error("First signature failed verification")
}
if !privKey.PublicKey.Verify(message, sig2, nil) {
t.Error("Second signature failed verification")
}
})
}
}
func TestMLDSAEdgeCases(t *testing.T) {
t.Run("InvalidMode", func(t *testing.T) {
_, err := GenerateKey(rand.Reader, Mode(99))
if err == nil {
t.Error("GenerateKey should fail with invalid mode")
}
})
t.Run("NilPublicKey", func(t *testing.T) {
var pubKey *PublicKey
valid := pubKey.Verify([]byte("test"), []byte("sig"), nil)
if valid {
t.Error("Nil public key should not verify")
}
})
t.Run("NilPrivateKey", func(t *testing.T) {
var privKey *PrivateKey
_, err := privKey.Sign(rand.Reader, []byte("test"), nil)
if err == nil {
t.Error("Nil private key should not sign")
}
})
t.Run("EmptySignature", func(t *testing.T) {
privKey, _ := GenerateKey(rand.Reader, MLDSA44)
valid := privKey.PublicKey.Verify([]byte("test"), []byte{}, nil)
if valid {
t.Error("Empty signature should not verify")
}
})
t.Run("WrongSizeSignature", func(t *testing.T) {
privKey, _ := GenerateKey(rand.Reader, MLDSA44)
// Wrong size signature
wrongSig := make([]byte, 100)
rand.Read(wrongSig)
valid := privKey.PublicKey.Verify([]byte("test"), wrongSig, nil)
if valid {
t.Error("Wrong size signature should not verify")
}
})
}
func TestMLDSALargeMessage(t *testing.T) {
modes := []Mode{MLDSA44, MLDSA65, MLDSA87}
for _, mode := range modes {
t.Run(mode.String(), func(t *testing.T) {
privKey, err := GenerateKey(rand.Reader, mode)
if err != nil {
t.Fatalf("GenerateKey failed: %v", err)
}
// Test with large message (1MB)
largeMessage := make([]byte, 1024*1024)
rand.Read(largeMessage)
signature, err := privKey.Sign(rand.Reader, largeMessage, nil)
if err != nil {
t.Fatalf("Sign large message failed: %v", err)
}
valid := privKey.PublicKey.Verify(largeMessage, signature, nil)
if !valid {
t.Error("Large message signature failed verification")
}
// Modify one byte in the middle
largeMessage[512*1024] ^= 0xFF
valid = privKey.PublicKey.Verify(largeMessage, signature, nil)
if valid {
t.Error("Modified large message passed verification")
}
})
}
}
func TestMLDSAConcurrency(t *testing.T) {
privKey, err := GenerateKey(rand.Reader, MLDSA44)
if err != nil {
t.Fatalf("GenerateKey failed: %v", err)
}
message := []byte("Concurrent test message")
// Test concurrent signing
t.Run("ConcurrentSign", func(t *testing.T) {
const numGoroutines = 10
done := make(chan bool, numGoroutines)
for i := 0; i < numGoroutines; i++ {
go func(id int) {
msg := append(message, byte(id))
sig, err := privKey.Sign(rand.Reader, msg, nil)
if err != nil {
t.Errorf("Goroutine %d: Sign failed: %v", id, err)
}
valid := privKey.PublicKey.Verify(msg, sig, nil)
if !valid {
t.Errorf("Goroutine %d: Verification failed", id)
}
done <- true
}(i)
}
for i := 0; i < numGoroutines; i++ {
<-done
}
})
// Test concurrent verification
t.Run("ConcurrentVerify", func(t *testing.T) {
signature, _ := privKey.Sign(rand.Reader, message, nil)
const numGoroutines = 10
done := make(chan bool, numGoroutines)
for i := 0; i < numGoroutines; i++ {
go func(id int) {
valid := privKey.PublicKey.Verify(message, signature, nil)
if !valid {
t.Errorf("Goroutine %d: Verification failed", id)
}
done <- true
}(i)
}
for i := 0; i < numGoroutines; i++ {
<-done
}
})
}
func BenchmarkMLDSAKeyGen(b *testing.B) {
modes := []struct {
name string
mode Mode
}{
{"ML-DSA-44", MLDSA44},
{"ML-DSA-65", MLDSA65},
{"ML-DSA-87", MLDSA87},
}
for _, m := range modes {
b.Run(m.name, func(b *testing.B) {
b.ResetTimer()
for i := 0; i < b.N; i++ {
_, err := GenerateKey(rand.Reader, m.mode)
if err != nil {
b.Fatal(err)
}
}
})
}
}
func BenchmarkMLDSASign(b *testing.B) {
modes := []struct {
name string
mode Mode
}{
{"ML-DSA-44", MLDSA44},
{"ML-DSA-65", MLDSA65},
{"ML-DSA-87", MLDSA87},
}
message := []byte("Benchmark message for ML-DSA signature performance")
for _, m := range modes {
privKey, _ := GenerateKey(rand.Reader, m.mode)
b.Run(m.name, func(b *testing.B) {
b.ResetTimer()
for i := 0; i < b.N; i++ {
_, err := privKey.Sign(rand.Reader, message, nil)
if err != nil {
b.Fatal(err)
}
}
})
}
}
func BenchmarkMLDSAVerify(b *testing.B) {
modes := []struct {
name string
mode Mode
}{
{"ML-DSA-44", MLDSA44},
{"ML-DSA-65", MLDSA65},
{"ML-DSA-87", MLDSA87},
}
message := []byte("Benchmark message for ML-DSA verification performance")
for _, m := range modes {
privKey, _ := GenerateKey(rand.Reader, m.mode)
signature, _ := privKey.Sign(rand.Reader, message, nil)
b.Run(m.name, func(b *testing.B) {
b.ResetTimer()
for i := 0; i < b.N; i++ {
valid := privKey.PublicKey.Verify(message, signature, nil)
if !valid {
b.Fatal("Verification failed")
}
}
})
}
}
// Helper functions are now in mldsa.go
-396
View File
@@ -1,396 +0,0 @@
package mldsa
import (
"bytes"
"crypto/rand"
"testing"
)
func TestOptimizedKeyGeneration(t *testing.T) {
modes := []Mode{MLDSA44, MLDSA65, MLDSA87}
for _, mode := range modes {
t.Run(mode.String(), func(t *testing.T) {
// Test optimized key generation
privKey, err := GenerateKeyOptimized(rand.Reader, mode)
if err != nil {
t.Fatalf("GenerateKeyOptimized failed: %v", err)
}
// Verify key sizes
var expectedPrivSize, expectedPubSize int
switch mode {
case MLDSA44:
expectedPrivSize = MLDSA44PrivateKeySize
expectedPubSize = MLDSA44PublicKeySize
case MLDSA65:
expectedPrivSize = MLDSA65PrivateKeySize
expectedPubSize = MLDSA65PublicKeySize
case MLDSA87:
expectedPrivSize = MLDSA87PrivateKeySize
expectedPubSize = MLDSA87PublicKeySize
}
if len(privKey.Bytes()) != expectedPrivSize {
t.Errorf("Private key size mismatch: got %d, want %d", len(privKey.Bytes()), expectedPrivSize)
}
if len(privKey.PublicKey.Bytes()) != expectedPubSize {
t.Errorf("Public key size mismatch: got %d, want %d", len(privKey.PublicKey.Bytes()), expectedPubSize)
}
// Test nil reader
_, err = GenerateKeyOptimized(nil, mode)
if err == nil {
t.Error("GenerateKeyOptimized should fail with nil reader")
}
})
}
// Test invalid mode
_, err := GenerateKeyOptimized(rand.Reader, Mode(99))
if err == nil {
t.Error("GenerateKeyOptimized should fail with invalid mode")
}
}
func TestOptimizedSign(t *testing.T) {
modes := []Mode{MLDSA44, MLDSA65, MLDSA87}
for _, mode := range modes {
t.Run(mode.String(), func(t *testing.T) {
privKey, err := GenerateKey(rand.Reader, mode)
if err != nil {
t.Fatalf("GenerateKey failed: %v", err)
}
message := []byte("Test message for optimized signing")
// Test optimized signing
signature, err := privKey.OptimizedSign(rand.Reader, message, nil)
if err != nil {
t.Fatalf("OptimizedSign failed: %v", err)
}
// Verify signature
valid := privKey.PublicKey.Verify(message, signature, nil)
if !valid {
t.Error("Optimized signature failed verification")
}
// Test with different message
wrongMessage := []byte("Wrong message")
valid = privKey.PublicKey.Verify(wrongMessage, signature, nil)
if valid {
t.Error("Signature verified with wrong message")
}
})
}
}
func TestBatchDSA(t *testing.T) {
modes := []Mode{MLDSA44, MLDSA65, MLDSA87}
for _, mode := range modes {
t.Run(mode.String(), func(t *testing.T) {
numKeys := 5
batch, err := NewBatchDSA(mode, numKeys)
if err != nil {
t.Fatalf("NewBatchDSA failed: %v", err)
}
// Prepare messages
messages := make([][]byte, numKeys)
for i := range messages {
messages[i] = []byte(string(rune('A'+i)) + " Test message for batch signing")
}
// Batch sign
signatures, err := batch.SignBatch(messages)
if err != nil {
t.Fatalf("SignBatch failed: %v", err)
}
if len(signatures) != numKeys {
t.Errorf("Expected %d signatures, got %d", numKeys, len(signatures))
}
// Batch verify
results, err := batch.VerifyBatch(messages, signatures)
if err != nil {
t.Fatalf("VerifyBatch failed: %v", err)
}
for i, valid := range results {
if !valid {
t.Errorf("Signature %d failed verification", i)
}
}
// Test with tampered signature
signatures[0][0] ^= 0xFF
results, err = batch.VerifyBatch(messages, signatures)
if err != nil {
t.Fatalf("VerifyBatch failed: %v", err)
}
if results[0] {
t.Error("Tampered signature passed verification")
}
signatures[0][0] ^= 0xFF // restore
// Test mismatched counts
wrongMessages := make([][]byte, numKeys-1)
_, err = batch.SignBatch(wrongMessages)
if err == nil {
t.Error("SignBatch should fail with mismatched message count")
}
_, err = batch.VerifyBatch(wrongMessages, signatures)
if err == nil {
t.Error("VerifyBatch should fail with mismatched count")
}
})
}
}
func TestPrecomputedMLDSA(t *testing.T) {
modes := []Mode{MLDSA44, MLDSA65, MLDSA87}
for _, mode := range modes {
t.Run(mode.String(), func(t *testing.T) {
privKey, err := GenerateKey(rand.Reader, mode)
if err != nil {
t.Fatalf("GenerateKey failed: %v", err)
}
precomputed := NewPrecomputedMLDSA(privKey)
message := []byte("Test message for caching")
// First sign (cache miss)
sig1, err := precomputed.SignCached(message)
if err != nil {
t.Fatalf("First SignCached failed: %v", err)
}
// Second sign (cache hit)
sig2, err := precomputed.SignCached(message)
if err != nil {
t.Fatalf("Second SignCached failed: %v", err)
}
// Cached signatures should be identical
if !bytes.Equal(sig1, sig2) {
t.Error("Cached signatures are not identical")
}
// Both should verify
valid := privKey.PublicKey.Verify(message, sig1, nil)
if !valid {
t.Error("First cached signature failed verification")
}
valid = privKey.PublicKey.Verify(message, sig2, nil)
if !valid {
t.Error("Second cached signature failed verification")
}
// Different message should produce different signature
message2 := []byte("Different message")
sig3, err := precomputed.SignCached(message2)
if err != nil {
t.Fatalf("SignCached for different message failed: %v", err)
}
if bytes.Equal(sig1, sig3) {
t.Error("Different messages produced same signature")
}
valid = privKey.PublicKey.Verify(message2, sig3, nil)
if !valid {
t.Error("Third cached signature failed verification")
}
})
}
}
func TestSignatureBufferPool(t *testing.T) {
// Test getting and putting buffers
buf1 := getSignatureBuffer(MLDSA44SignatureSize)
if len(buf1) != MLDSA44SignatureSize {
t.Errorf("Expected buffer size %d, got %d", MLDSA44SignatureSize, len(buf1))
}
// Return buffer to pool
putSignatureBuffer(buf1)
// Get buffer again (should get same or similar buffer from pool)
buf2 := getSignatureBuffer(MLDSA44SignatureSize)
if len(buf2) != MLDSA44SignatureSize {
t.Errorf("Expected buffer size %d, got %d", MLDSA44SignatureSize, len(buf2))
}
putSignatureBuffer(buf2)
// Test with larger size than pool default
largeBuf := getSignatureBuffer(MLDSA87SignatureSize * 2)
if len(largeBuf) != MLDSA87SignatureSize*2 {
t.Errorf("Expected buffer size %d, got %d", MLDSA87SignatureSize*2, len(largeBuf))
}
// Small buffers should not be pooled
smallBuf := make([]byte, 100)
putSignatureBuffer(smallBuf) // Should not panic
}
func TestHelperFunctions(t *testing.T) {
t.Run("SetBytes", func(t *testing.T) {
// Test PrivateKey SetBytes
privKey := NewPrivateKey(MLDSA44)
data := make([]byte, MLDSA44PrivateKeySize)
rand.Read(data)
privKey.SetBytes(data)
if !bytes.Equal(privKey.Bytes(), data) {
t.Error("PrivateKey SetBytes failed")
}
// Test PublicKey SetBytes
pubKey := NewPublicKey(MLDSA44)
pubData := make([]byte, MLDSA44PublicKeySize)
rand.Read(pubData)
pubKey.SetBytes(pubData)
if !bytes.Equal(pubKey.Bytes(), pubData) {
t.Error("PublicKey SetBytes failed")
}
})
t.Run("GetKeySizes", func(t *testing.T) {
// Test private key sizes
if size := getPrivateKeySize(MLDSA44); size != MLDSA44PrivateKeySize {
t.Errorf("getPrivateKeySize(MLDSA44) = %d, want %d", size, MLDSA44PrivateKeySize)
}
if size := getPrivateKeySize(MLDSA65); size != MLDSA65PrivateKeySize {
t.Errorf("getPrivateKeySize(MLDSA65) = %d, want %d", size, MLDSA65PrivateKeySize)
}
if size := getPrivateKeySize(MLDSA87); size != MLDSA87PrivateKeySize {
t.Errorf("getPrivateKeySize(MLDSA87) = %d, want %d", size, MLDSA87PrivateKeySize)
}
if size := getPrivateKeySize(Mode(99)); size != 0 {
t.Errorf("getPrivateKeySize(invalid) = %d, want 0", size)
}
// Test public key sizes
if size := getPublicKeySize(MLDSA44); size != MLDSA44PublicKeySize {
t.Errorf("getPublicKeySize(MLDSA44) = %d, want %d", size, MLDSA44PublicKeySize)
}
if size := getPublicKeySize(MLDSA65); size != MLDSA65PublicKeySize {
t.Errorf("getPublicKeySize(MLDSA65) = %d, want %d", size, MLDSA65PublicKeySize)
}
if size := getPublicKeySize(MLDSA87); size != MLDSA87PublicKeySize {
t.Errorf("getPublicKeySize(MLDSA87) = %d, want %d", size, MLDSA87PublicKeySize)
}
if size := getPublicKeySize(Mode(99)); size != 0 {
t.Errorf("getPublicKeySize(invalid) = %d, want 0", size)
}
})
}
func BenchmarkOptimizedKeyGen(b *testing.B) {
modes := []struct {
name string
mode Mode
}{
{"ML-DSA-44", MLDSA44},
{"ML-DSA-65", MLDSA65},
{"ML-DSA-87", MLDSA87},
}
for _, m := range modes {
b.Run(m.name+"-Standard", func(b *testing.B) {
b.ResetTimer()
for i := 0; i < b.N; i++ {
_, err := GenerateKey(rand.Reader, m.mode)
if err != nil {
b.Fatal(err)
}
}
})
b.Run(m.name+"-Optimized", func(b *testing.B) {
b.ResetTimer()
for i := 0; i < b.N; i++ {
_, err := GenerateKeyOptimized(rand.Reader, m.mode)
if err != nil {
b.Fatal(err)
}
}
})
}
}
func BenchmarkOptimizedSign(b *testing.B) {
modes := []struct {
name string
mode Mode
}{
{"ML-DSA-44", MLDSA44},
{"ML-DSA-65", MLDSA65},
{"ML-DSA-87", MLDSA87},
}
message := []byte("Benchmark message for optimized signing")
for _, m := range modes {
privKey, _ := GenerateKey(rand.Reader, m.mode)
b.Run(m.name+"-Standard", func(b *testing.B) {
b.ResetTimer()
for i := 0; i < b.N; i++ {
_, err := privKey.Sign(rand.Reader, message, nil)
if err != nil {
b.Fatal(err)
}
}
})
b.Run(m.name+"-Optimized", func(b *testing.B) {
b.ResetTimer()
for i := 0; i < b.N; i++ {
_, err := privKey.OptimizedSign(rand.Reader, message, nil)
if err != nil {
b.Fatal(err)
}
}
})
}
}
func BenchmarkBatchOperations(b *testing.B) {
numKeys := 10
batch, _ := NewBatchDSA(MLDSA65, numKeys)
messages := make([][]byte, numKeys)
for i := range messages {
messages[i] = make([]byte, 32)
rand.Read(messages[i])
}
b.Run("BatchSign", func(b *testing.B) {
b.ResetTimer()
for i := 0; i < b.N; i++ {
_, err := batch.SignBatch(messages)
if err != nil {
b.Fatal(err)
}
}
})
signatures, _ := batch.SignBatch(messages)
b.Run("BatchVerify", func(b *testing.B) {
b.ResetTimer()
for i := 0; i < b.N; i++ {
_, err := batch.VerifyBatch(messages, signatures)
if err != nil {
b.Fatal(err)
}
}
})
}