diff options
Diffstat (limited to 'libgo/go/crypto/dsa/dsa.go')
| -rw-r--r-- | libgo/go/crypto/dsa/dsa.go | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/libgo/go/crypto/dsa/dsa.go b/libgo/go/crypto/dsa/dsa.go index e94585579eb..575314b1b46 100644 --- a/libgo/go/crypto/dsa/dsa.go +++ b/libgo/go/crypto/dsa/dsa.go @@ -11,6 +11,8 @@ import ( "errors" "io" "math/big" + + "crypto/internal/randutil" ) // Parameters represents the domain parameters for a key. These parameters can @@ -195,6 +197,8 @@ func fermatInverse(k, P *big.Int) *big.Int { // Be aware that calling Sign with an attacker-controlled PrivateKey may // require an arbitrary amount of CPU. func Sign(rand io.Reader, priv *PrivateKey, hash []byte) (r, s *big.Int, err error) { + randutil.MaybeReadByte(rand) + // FIPS 186-3, section 4.6 n := priv.Q.BitLen() |