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This commit is contained in:
Wade Simmons
2026-06-08 09:43:28 -04:00
parent c7e035479c
commit 37b752bb23
3 changed files with 14 additions and 21 deletions
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noiseutil/fips140.go
+5 -9
View File
@@ -1,5 +1,3 @@
//go:build fips140v1.0 || fips140v1.26
package noiseutil package noiseutil
import ( import (
@@ -12,17 +10,12 @@ import (
"github.com/flynn/noise" "github.com/flynn/noise"
) )
// EncryptLockNeeded indicates if calls to Encrypt need a lock
// This is true for fips140 because the Seal function verifies that the
// nonce is strictly increasing.
const EncryptLockNeeded = true
// TODO: Use NewGCMWithCounterNonce once available: // TODO: Use NewGCMWithCounterNonce once available:
// - https://github.com/golang/go/issues/73110 // - https://github.com/golang/go/issues/73110
// Using tls.aeadAESGCM gives us the TLS 1.2 GCM, which also verifies // Using tls.aeadAESGCM gives us the TLS 1.2 GCM, which also verifies
// that the nonce is strictly increasing. // that the nonce is strictly increasing.
// //
//go:linkname aeadAESGCM crypto/tls.aeadAESGCM //go:linkname aeadAESGCM crypto/tls.aeadAESGCMTLS13
func aeadAESGCM(key, noncePrefix []byte) cipher.AEAD func aeadAESGCM(key, noncePrefix []byte) cipher.AEAD
type cipherFn struct { type cipherFn struct {
@@ -37,10 +30,13 @@ func (c cipherFn) CipherName() string { return c.name }
var CipherAESGCM noise.CipherFunc = cipherFn{cipherAESGCMFIPS140, "AESGCM"} var CipherAESGCM noise.CipherFunc = cipherFn{cipherAESGCMFIPS140, "AESGCM"}
// tls.aeadAESGCM uses a 4 byte static prefix and an 8 byte nonce // tls.aeadAESGCM uses a 4 byte static prefix and an 8 byte nonce
var emptyPrefix = []byte{0, 0, 0, 0} var emptyPrefix = []byte{0, 0, 0, 0,
0, 0, 0, 0,
0, 0, 0, 0}
func cipherAESGCMFIPS140(k [32]byte) noise.Cipher { func cipherAESGCMFIPS140(k [32]byte) noise.Cipher {
gcm := aeadAESGCM(k[:], emptyPrefix) gcm := aeadAESGCM(k[:], emptyPrefix)
gcm.Seal([]byte{}, []byte{0, 0, 0, 0, 0, 0, 0, 0}, []byte{}, []byte{})
return aeadCipher{ return aeadCipher{
gcm, gcm,
func(n uint64) []byte { func(n uint64) []byte {
noiseutil/fips140_test.go
+5 -8
View File
@@ -1,5 +1,3 @@
//go:build fips140v1.0 || fips140v1.26
package noiseutil package noiseutil
import ( import (
@@ -11,16 +9,15 @@ import (
"github.com/stretchr/testify/assert" "github.com/stretchr/testify/assert"
) )
func TestEncryptLockNeeded(t *testing.T) {
assert.True(t, EncryptLockNeeded)
}
// Ensure NewAESGCM validates the nonce is non-repeating // Ensure NewAESGCM validates the nonce is non-repeating
func TestNewAESGCM(t *testing.T) { func TestNewAESGCM(t *testing.T) {
assert.True(t, fips140.Enabled()) if !fips140.Enabled() {
t.Skip()
return
}
key, _ := hex.DecodeString("feffe9928665731c6d6a8f9467308308feffe9928665731c6d6a8f9467308308") key, _ := hex.DecodeString("feffe9928665731c6d6a8f9467308308feffe9928665731c6d6a8f9467308308")
iv, _ := hex.DecodeString("00000000facedbaddecaf888") iv, _ := hex.DecodeString("facedbaddecaf888")
plaintext, _ := hex.DecodeString("d9313225f88406e5a55909c5aff5269a86a7a9531534f7da2e4c303d8a318a721c3c0c95956809532fcf0e2449a6b525b16aedf5aa0de657ba637b39") plaintext, _ := hex.DecodeString("d9313225f88406e5a55909c5aff5269a86a7a9531534f7da2e4c303d8a318a721c3c0c95956809532fcf0e2449a6b525b16aedf5aa0de657ba637b39")
aad, _ := hex.DecodeString("feedfacedeadbeeffeedfacedeadbeefabaddad2") aad, _ := hex.DecodeString("feedfacedeadbeeffeedfacedeadbeefabaddad2")
expected, _ := hex.DecodeString("72ce2ea385f88c20d856e9d1248c2ca08562bbe8a61459ffae06ec393540518e9b6b4c40a146053f26a3df83c5384a48d273148b15aba64d970107432b2892741359275676441c1572c3fa9e") expected, _ := hex.DecodeString("72ce2ea385f88c20d856e9d1248c2ca08562bbe8a61459ffae06ec393540518e9b6b4c40a146053f26a3df83c5384a48d273148b15aba64d970107432b2892741359275676441c1572c3fa9e")
noiseutil/notboring.go
+4 -4
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@@ -1,13 +1,13 @@
//go:build !boringcrypto && !fips140v1.0 && !fips140v1.26 //go:build !boringcrypto
package noiseutil package noiseutil
import ( import (
"github.com/flynn/noise" "crypto/fips140"
) )
// EncryptLockNeeded indicates if calls to Encrypt need a lock // EncryptLockNeeded indicates if calls to Encrypt need a lock
const EncryptLockNeeded = false var EncryptLockNeeded = fips140.Enabled()
// CipherAESGCM is the standard noise.CipherAESGCM when boringcrypto is not enabled // CipherAESGCM is the standard noise.CipherAESGCM when boringcrypto is not enabled
var CipherAESGCM noise.CipherFunc = noise.CipherAESGCM // var CipherAESGCM noise.CipherFunc = noise.CipherAESGCM