Commit ee8aa821 authored by Ulf Möller's avatar Ulf Möller
Browse files

make sure we don't write to seed[-1]

parent 2b49dd1e

crypto/rsa/rsa_oaep.c

+5 −0
Original line number Diff line number Diff line
@@ -111,6 +111,11 @@ int RSA_padding_check_PKCS1_OAEP(unsigned char *to, int tlen, 
	}



    lzero = num - flen;

    if (lzero < 0)

    {

    RSAerr(RSA_F_RSA_PADDING_CHECK_PKCS1_OAEP, RSA_R_OAEP_DECODING_ERROR);

    return (-1);

    }

    maskeddb = from - lzero + SHA_DIGEST_LENGTH;

    

    MGF1(seed, SHA_DIGEST_LENGTH, maskeddb, dblen);