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Bypass gcc optimization

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Frank Denis
2014-08-03 20:10:38 -07:00
parent 2350dbe13e
commit be41f72e0e
1 changed files with 2 additions and 10 deletions
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src/libsodium/crypto_sign/ed25519/ref10/open.c
+2 -10
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@@ -43,16 +43,8 @@ crypto_sign_verify_detached(const unsigned char *sig, const unsigned char *m,
ge_double_scalarmult_vartime(&R, h, &A, sig + 32);
ge_tobytes(rcheck, &R);
if (crypto_verify_32(rcheck, sig) != 0) {
return -1;
}
if (sig == rcheck) {
return -1;
}
if (sodium_memcmp(sig, rcheck, 32) != 0) {
return -1;
}
return 0;
return crypto_verify_32(rcheck, sig) | (-(rcheck - sig == 0)) |
sodium_memcmp(sig, rcheck, 32);
}
int