diff options
Diffstat (limited to 'src/ext')
| -rw-r--r-- | src/ext/ed25519/donna/ed25519_tor.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/src/ext/ed25519/donna/ed25519_tor.c b/src/ext/ed25519/donna/ed25519_tor.c index bd11027efa..6bc22675ae 100644 --- a/src/ext/ed25519/donna/ed25519_tor.c +++ b/src/ext/ed25519/donna/ed25519_tor.c @@ -304,7 +304,9 @@ ed25519_donna_blind_public_key(unsigned char *out, const unsigned char *inp, /* No "ge25519_unpack", negate the public key. */ memcpy(pkcopy, inp, 32); pkcopy[31] ^= (1<<7); - ge25519_unpack_negative_vartime(&A, pkcopy); + if (!ge25519_unpack_negative_vartime(&A, pkcopy)) { + return -1; + } /* A' = [tweak] * A + [0] * basepoint. */ ge25519_double_scalarmult_vartime(&Aprime, &A, t, zero); |