Minor readability improvement
Polish the beginning of mbedtls_rsa_rsaes_pkcs1_v15_decrypt a little,
to prepare for some behavior changes.
@@ -1390,15 +1390,17 @@ int mbedtls_rsa_rsaes_pkcs1_v15_decrypt( mbedtls_rsa_context *ctx,
size_t output_max_len )
{
int ret;
- size_t ilen, pad_count = 0, i;
- unsigned char *p, bad, pad_done = 0;
+ size_t ilen = ctx->len;
+ size_t pad_count = 0;
+ size_t i;
+ unsigned bad = 0;
+ unsigned char pad_done = 0;
unsigned char buf[MBEDTLS_MPI_MAX_SIZE];
+ unsigned char *p = buf;
if( mode == MBEDTLS_RSA_PRIVATE && ctx->padding != MBEDTLS_RSA_PKCS_V15 )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
- ilen = ctx->len;
-
if( ilen < 16 || ilen > sizeof( buf ) )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
@@ -1409,9 +1411,6 @@ int mbedtls_rsa_rsaes_pkcs1_v15_decrypt( mbedtls_rsa_context *ctx,
if( ret != 0 )
goto cleanup;
- p = buf;
- bad = 0;
-
/*
* Check and get padding len in "constant-time"
*/
