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Merge pull request #3987 from tmael/pss_salt

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RSA: Fix RSA PSS padding check
This commit is contained in:
Sean Parkinson
2021-04-27 14:50:32 +10:00
committed by GitHub
parent b7b2347804 1637bd3e02
commit 7e87c01a7d
1 changed files with 6 additions and 2 deletions
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8
wolfcrypt/src/rsa.c
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@@ -3478,7 +3478,11 @@ int wc_RsaPSS_Verify_ex(byte* in, word32 inLen, byte* out, word32 outLen,
int wc_RsaPSS_CheckPadding(const byte* in, word32 inSz, byte* sig,
word32 sigSz, enum wc_HashType hashType)
{
return wc_RsaPSS_CheckPadding_ex(in, inSz, sig, sigSz, hashType, inSz, 0);
#ifndef WOLFSSL_PSS_SALT_LEN_DISCOVER
return wc_RsaPSS_CheckPadding_ex(in, inSz, sig, sigSz, hashType, RSA_PSS_SALT_LEN_DEFAULT, 0);
#else
return wc_RsaPSS_CheckPadding_ex(in, inSz, sig, sigSz, hashType, RSA_PSS_SALT_LEN_DISCOVER, 0);
#endif
}
/* Checks the PSS data to ensure that the signature matches.
@@ -3524,7 +3528,7 @@ int wc_RsaPSS_CheckPadding_ex(const byte* in, word32 inSz, byte* sig,
#endif
}
#ifndef WOLFSSL_PSS_LONG_SALT
else if ((word32)saltLen > inSz) {
else if (saltLen > (int)inSz) {
ret = PSS_SALTLEN_E;
}
#endif