diff options
Diffstat (limited to 'crypto/rsa/rsa_pk1.c')
| -rw-r--r-- | crypto/rsa/rsa_pk1.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/crypto/rsa/rsa_pk1.c b/crypto/rsa/rsa_pk1.c index 2791291b94..4638187970 100644 --- a/crypto/rsa/rsa_pk1.c +++ b/crypto/rsa/rsa_pk1.c @@ -103,17 +103,18 @@ int flen; return(1); } -int RSA_padding_check_PKCS1_type_1(to,tlen,from,flen) +int RSA_padding_check_PKCS1_type_1(to,tlen,from,flen,num) unsigned char *to; int tlen; unsigned char *from; int flen; +int num; { int i,j; unsigned char *p; p=from; - if (*(p++) != 01) + if ((num != (flen+1)) || (*(p++) != 01)) { RSAerr(RSA_F_RSA_PADDING_CHECK_PKCS1_TYPE_1,RSA_R_BLOCK_TYPE_IS_NOT_01); return(-1); @@ -192,21 +193,25 @@ int flen; return(1); } -int RSA_padding_check_PKCS1_type_2(to,tlen,from,flen) +int RSA_padding_check_PKCS1_type_2(to,tlen,from,flen,num) unsigned char *to; int tlen; unsigned char *from; int flen; +int num; { int i,j; unsigned char *p; p=from; - if (*(p++) != 02) + if ((num != (flen+1)) || (*(p++) != 02)) { RSAerr(RSA_F_RSA_PADDING_CHECK_PKCS1_TYPE_2,RSA_R_BLOCK_TYPE_IS_NOT_02); return(-1); } +#ifdef PKCS1_CHECK + return(num-11); +#endif /* scan over padding data */ j=flen-1; /* one for type. */ |