| diff --git a/include/mbedtls/config.h b/include/mbedtls/config.h | 
| index d2e3878..cd5c7ad 100644 | 
| --- a/include/mbedtls/config.h | 
| +++ b/include/mbedtls/config.h | 
| @@ -2458,7 +2458,7 @@ | 
|   *            it, and considering stronger message digests instead. | 
|   * | 
|   */ | 
| -//#define MBEDTLS_MD4_C | 
| +#define MBEDTLS_MD4_C | 
|   | 
|  /** | 
|   * \def MBEDTLS_MD5_C | 
| diff --git a/include/mbedtls/ssl.h b/include/mbedtls/ssl.h | 
| index e8b973c..ad363c9 100644 | 
| --- a/include/mbedtls/ssl.h | 
| +++ b/include/mbedtls/ssl.h | 
| @@ -904,7 +904,6 @@ struct mbedtls_ssl_config | 
|      void *p_export_keys;            /*!< context for key export callback    */ | 
|  #if defined(MBEDTLS_EAP_TLS_EXPORT_KEYS) | 
|      mbedtls_tls_key_t export_key_type; | 
| -    unsigned char eap_tls_keyblk[128]; | 
|  #endif | 
|  #endif | 
|   | 
| diff --git a/library/ssl_tls.c b/library/ssl_tls.c | 
| index 4525d6e..5fbee68 100644 | 
| --- a/library/ssl_tls.c | 
| +++ b/library/ssl_tls.c | 
| @@ -619,7 +619,7 @@ int mbedtls_ssl_derive_keys( mbedtls_ssl_context *ssl ) | 
|      unsigned char tmp[64]; | 
|      unsigned char keyblk[256]; | 
|  #if defined(MBEDTLS_EAP_TLS_EXPORT_KEYS) | 
| -    unsigned char eap_tls_keyblk[128]; | 
| +    unsigned char eap_tls_keyblk[192]; | 
|  #endif | 
|      unsigned char *key1; | 
|      unsigned char *key2; | 
| @@ -780,6 +780,7 @@ int mbedtls_ssl_derive_keys( mbedtls_ssl_context *ssl ) | 
|              MBEDTLS_SSL_DEBUG_RET( 1, "eap_tls_prf", ret ); | 
|              return( ret ); | 
|          } | 
| +        memcpy( eap_tls_keyblk + 128, handshake->randbytes, 64 ); | 
|      } | 
|  #endif | 
|   | 
| @@ -1047,7 +1048,7 @@ int mbedtls_ssl_derive_keys( mbedtls_ssl_context *ssl ) | 
|          if ( ssl->conf->export_key_type == EAP_TLS_KEY ) | 
|              ssl->conf->f_export_keys( ssl->conf->p_export_keys, | 
|                                    session->master, eap_tls_keyblk, | 
| -                                  0, 128, 0 ); | 
| +                                  0, 128, 64 ); | 
|          else | 
|  #endif /* MBEDTLS_EAP_TLS_EXPORT_KEYS */ | 
|          ssl->conf->f_export_keys( ssl->conf->p_export_keys, |