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Fix magic constant in previous commit

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Manuel Pégourié-Gonnard 2017-12-19 10:03:46 +01:00
parent 3ea75b3a9b
commit 921eb599f6
1 changed files with 3 additions and 2 deletions
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5
library/ssl_tls.c
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@ -1050,11 +1050,12 @@ int ssl_psk_derive_premaster( ssl_context *ssl, key_exchange_type_t key_ex )
/* /*
* SSLv3.0 MAC functions * SSLv3.0 MAC functions
*/ */
#define SSL_MAC_MAX_BYTES 20 /* MD-5 or SHA-1 */
static void ssl_mac( md_context_t *md_ctx, static void ssl_mac( md_context_t *md_ctx,
const unsigned char *secret, const unsigned char *secret,
const unsigned char *buf, size_t len, const unsigned char *buf, size_t len,
const unsigned char *ctr, int type, const unsigned char *ctr, int type,
unsigned char out[20] ) unsigned char out[SSL_MAC_MAX_BYTES] )
{ {
unsigned char header[11]; unsigned char header[11];
unsigned char padding[48]; unsigned char padding[48];
@ -1132,7 +1133,7 @@ static int ssl_encrypt_buf( ssl_context *ssl )
#if defined(POLARSSL_SSL_PROTO_SSL3) #if defined(POLARSSL_SSL_PROTO_SSL3)
if( ssl->minor_ver == SSL_MINOR_VERSION_0 ) if( ssl->minor_ver == SSL_MINOR_VERSION_0 )
{ {
unsigned char mac[20]; /* SHA-1 at most */ unsigned char mac[SSL_MAC_MAX_BYTES];
ssl_mac( &ssl->transform_out->md_ctx_enc, ssl_mac( &ssl->transform_out->md_ctx_enc,
ssl->transform_out->mac_enc, ssl->transform_out->mac_enc,