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Fix magic constant in previous commit

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This commit is contained in:
Manuel Pégourié-Gonnard 2017-12-19 10:03:46 +01:00
parent 464147cadc
commit b053efb295
1 changed files with 3 additions and 2 deletions
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5
library/ssl_tls.c
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@ -1203,11 +1203,12 @@ int mbedtls_ssl_psk_derive_premaster( mbedtls_ssl_context *ssl, mbedtls_key_exch
/* /*
* SSLv3.0 MAC functions * SSLv3.0 MAC functions
*/ */
#define SSL_MAC_MAX_BYTES 20 /* MD-5 or SHA-1 */
static void ssl_mac( mbedtls_md_context_t *md_ctx, static void ssl_mac( mbedtls_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];
@ -1284,7 +1285,7 @@ static int ssl_encrypt_buf( mbedtls_ssl_context *ssl )
#if defined(MBEDTLS_SSL_PROTO_SSL3) #if defined(MBEDTLS_SSL_PROTO_SSL3)
if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 ) if( ssl->minor_ver == MBEDTLS_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,