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Fix for AES GCM and CCM ex to NOT increment counter or update IV if failure or async response code. Resolves TLS v1.3 with async simulator.

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This commit is contained in:
David Garske
2019-03-13 23:32:53 -07:00
parent 397c2a4f8a
commit 6361ec2f10
2 changed files with 6 additions and 4 deletions
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1
src/internal.c
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@ -20931,7 +20931,6 @@ int SendCertificateVerify(WOLFSSL* ssl)
NULL
#endif
);
ssl->buffers.sig.length = (unsigned int)args->sigSz;
}
#endif /* HAVE_ED25519 && !NO_ED25519_CLIENT_AUTH */
#ifndef NO_RSA

3
wolfcrypt/src/aes.c
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@ -6061,6 +6061,7 @@ int wc_AesGcmEncrypt_ex(Aes* aes, byte* out, const byte* in, word32 sz,
(byte*)aes->reg, ivOutSz,
authTag, authTagSz,
authIn, authInSz);
if (ret == 0)
IncCtr((byte*)aes->reg, ivOutSz);
}
@ -6534,9 +6535,11 @@ int wc_AesCcmEncrypt_ex(Aes* aes, byte* out, const byte* in, word32 sz,
(byte*)aes->reg, aes->nonceSz,
authTag, authTagSz,
authIn, authInSz);
if (ret == 0) {
XMEMCPY(ivOut, aes->reg, aes->nonceSz);
IncCtr((byte*)aes->reg, aes->nonceSz);
}
}
return ret;
}