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Fix for padding X9.31 padding check and zero padding bytes.

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This commit is contained in:
Dr. Stephen Henson 2005-06-06 22:39:43 +00:00
parent 8fa6a40be2
commit a78c0632ed
1 changed files with 9 additions and 7 deletions
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16
crypto/rsa/rsa_x931.c
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@ -115,9 +115,9 @@ int RSA_padding_check_X931(unsigned char *to, int tlen,
return -1;
}
j=flen-3;
if (*p++ == 0x6B)
{
j=flen-3;
for (i = 0; i < j; i++)
{
unsigned char c = *p++;
@ -130,15 +130,17 @@ int RSA_padding_check_X931(unsigned char *to, int tlen,
return -1;
}
}
}
j -= i;
j -= i;
if (i == 0)
{
RSAerr(RSA_F_RSA_PADDING_CHECK_X931, RSA_R_INVALID_PADDING);
return -1;
}
if (i == 0)
{
RSAerr(RSA_F_RSA_PADDING_CHECK_X931, RSA_R_INVALID_PADDING);
return -1;
}
else j = flen - 2;
if (p[j] != 0xCC)
{