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Make PSK_LEN configurable and adjust PMS size

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Manuel Pégourié-Gonnard 2014-07-03 16:12:50 +02:00 • committed by Paul Bakker
parent cc10f4ddfe
commit 481fcfde93
6 changed files with 43 additions and 16 deletions
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40
include/polarssl/ssl.h
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@ -34,6 +34,7 @@
#endif
#include "net.h"
#include "bignum.h"
#include "ecp.h"
#include "ssl_ciphersuites.h"
@ -409,12 +410,43 @@
/*
* Size defines
*/
#if !defined(POLARSSL_MPI_MAX_SIZE)
#define POLARSSL_PREMASTER_SIZE 512
#else
#define POLARSSL_PREMASTER_SIZE POLARSSL_MPI_MAX_SIZE
#if !defined(POLARSSL_PSK_MAX_LEN)
#define POLARSSL_PSK_MAX_LEN 32 /* 256 bits */
#endif
/* Dummy type used only for its size */
union _ssl_premaster_secret
{
#if defined(POLARSSL_KEY_EXCHANGE_RSA_ENABLED)
unsigned char _pms_rsa[48]; /* RFC 5246 8.1.1 */
#endif
#if defined(POLARSSL_KEY_EXCHANGE_DHE_RSA_ENABLED)
unsigned char _pms_dhm[POLARSSL_MPI_MAX_SIZE]; /* RFC 5246 8.1.2 */
#endif
#if defined(POLARSSL_KEY_EXCHANGE_ECDHE_RSA_ENABLED) || \
defined(POLARSSL_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) || \
defined(POLARSSL_KEY_EXCHANGE_ECDH_RSA_ENABLED) || \
defined(POLARSSL_KEY_EXCHANGE_ECDH_ECDSA_ENABLED)
unsigned char _pms_ecdh[POLARSSL_ECP_MAX_BYTES]; /* RFC 4492 5.10 */
#endif
#if defined(POLARSSL_KEY_EXCHANGE_PSK_ENABLED)
unsigned char _pms_psk[4 + 2 * POLARSSL_PSK_MAX_LEN]; /* RFC 4279 2 */
#endif
#if defined(POLARSSL_KEY_EXCHANGE_DHE_PSK_ENABLED)
unsigned char _pms_dhe_psk[4 + POLARSSL_MPI_MAX_SIZE
+ POLARSSL_PSK_MAX_LEN]; /* RFC 4279 3 */
#endif
#if defined(POLARSSL_KEY_EXCHANGE_RSA_PSK_ENABLED)
unsigned char _pms_rsa_psk[52 + POLARSSL_PSK_MAX_LEN]; /* RFC 4279 4 */
#endif
#if defined(POLARSSL_KEY_EXCHANGE_DHE_PSK_ENABLED)
unsigned char _pms_ecdhe_psk[4 + POLARSSL_ECP_MAX_BYTES
+ POLARSSL_PSK_MAX_LEN]; /* RFC 5489 2 */
#endif
};
#define POLARSSL_PREMASTER_SIZE sizeof( union _ssl_premaster_secret )
#ifdef __cplusplus
extern "C" {
#endif