ssl/d1_clnt.c:434: error: BUFFER_OVERRUN_L3
  Offset: [-1, +oo] Size: 28 by call to `ssl3_get_key_exchange`.
Showing all 11 steps of the trace


ssl/d1_clnt.c:165:1: Parameter `*s->init_msg`
163.   			DTLSv1_2_enc_data)
164.   
165. > int dtls1_connect(SSL *s)
166.   	{
167.   	BUF_MEM *buf=NULL;

ssl/d1_clnt.c:434:8: Call
432.   		case SSL3_ST_CR_KEY_EXCH_A:
433.   		case SSL3_ST_CR_KEY_EXCH_B:
434.   			ret=ssl3_get_key_exchange(s);
              ^
435.   			if (ret <= 0) goto end;
436.   			s->state=SSL3_ST_CR_CERT_REQ_A;

ssl/s3_clnt.c:1374:1: Parameter `*s->init_msg`
  1372.   	}
  1373.   
  1374. > int ssl3_get_key_exchange(SSL *s)
  1375.   	{
  1376.   #ifndef OPENSSL_NO_RSA

ssl/s3_clnt.c:1861:8: Call
  1859.   		 * sent an invalid curve. ECParameters is 3 bytes.
  1860.   		 */
  1861.   		if (!tls1_check_curve(s, p, 3))
                 ^
  1862.   			{
  1863.   			SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_WRONG_CURVE);

ssl/t1_lib.c:275:1: Array declaration
    273.   	};
    274.   
    275. > static const unsigned char eccurves_default[] =
    276.   	{
    277.   		0,14, /* sect571r1 (14) */ 

ssl/t1_lib.c:472:11: Call
    470.   		{
    471.   		if (p[1] == curves[0] && p[2] == curves[1])
    472.   			return tls_curve_allowed(s, p + 1, SSL_SECOP_CURVE_CHECK);
                     ^
    473.   		}
    474.   	return 0;

ssl/t1_lib.c:429:1: <Offset trace>
427.   
428.   /* See if curve is allowed by security callback */
429. > static int tls_curve_allowed(SSL *s, const unsigned char *curve, int op)
430.   	{
431.   	const tls_curve_info *cinfo;

ssl/t1_lib.c:429:1: Parameter `*curve`
      427.   
      428.   /* See if curve is allowed by security callback */
      429. > static int tls_curve_allowed(SSL *s, const unsigned char *curve, int op)
      430.   	{
      431.   	const tls_curve_info *cinfo;

ssl/t1_lib.c:235:1: <Length trace>
233.   #define TLS_CURVE_PRIME		0x0
234.   
235. > static const tls_curve_info nid_list[] =
236.   	{
237.   		{NID_sect163k1, 80, TLS_CURVE_CHAR2},/* sect163k1 (1) */

ssl/t1_lib.c:235:1: Array declaration
      233.   #define TLS_CURVE_PRIME		0x0
      234.   
      235. > static const tls_curve_info nid_list[] =
      236.   	{
      237.   		{NID_sect163k1, 80, TLS_CURVE_CHAR2},/* sect163k1 (1) */

ssl/t1_lib.c:437:2: Array access: Offset: [-1, +oo] Size: 28 by call to `ssl3_get_key_exchange` 
      435.   				sizeof(nid_list)/sizeof(nid_list[0])))
      436.   		return 0;
      437.   	cinfo = &nid_list[curve[1]-1];
              ^
      438.   	return ssl_security(s, op, cinfo->secbits, cinfo->nid, (void *)curve);
      439.   	}

static int tls_curve_allowed(SSL *s, const unsigned char *curve, int op)
	{
	const tls_curve_info *cinfo;
	if (curve[0])
		return 1;
	if ((curve[1] < 1) || ((size_t)curve[1] >
				sizeof(nid_list)/sizeof(nid_list[0])))
		return 0;
	cinfo = &nid_list[curve[1]-1];
	return ssl_security(s, op, cinfo->secbits, cinfo->nid, (void *)curve);
	}
['int dtls1_connect(SSL *s)\n\t{\n\tBUF_MEM *buf=NULL;\n\tunsigned long Time=(unsigned long)time(NULL);\n\tvoid (*cb)(const SSL *ssl,int type,int val)=NULL;\n\tint ret= -1;\n\tint new_state,state,skip=0;\n#ifndef OPENSSL_NO_SCTP\n\tunsigned char sctpauthkey[64];\n\tchar labelbuffer[sizeof(DTLS1_SCTP_AUTH_LABEL)];\n#endif\n\tRAND_add(&Time,sizeof(Time),0);\n\tERR_clear_error();\n\tclear_sys_error();\n\tif (s->info_callback != NULL)\n\t\tcb=s->info_callback;\n\telse if (s->ctx->info_callback != NULL)\n\t\tcb=s->ctx->info_callback;\n\ts->in_handshake++;\n\tif (!SSL_in_init(s) || SSL_in_before(s)) SSL_clear(s);\n#ifndef OPENSSL_NO_SCTP\n\tBIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_SET_IN_HANDSHAKE, s->in_handshake, NULL);\n#endif\n#ifndef OPENSSL_NO_HEARTBEATS\n\tif (s->tlsext_hb_pending)\n\t\t{\n\t\tdtls1_stop_timer(s);\n\t\ts->tlsext_hb_pending = 0;\n\t\ts->tlsext_hb_seq++;\n\t\t}\n#endif\n\tfor (;;)\n\t\t{\n\t\tstate=s->state;\n\t\tswitch(s->state)\n\t\t\t{\n\t\tcase SSL_ST_RENEGOTIATE:\n\t\t\ts->renegotiate=1;\n\t\t\ts->state=SSL_ST_CONNECT;\n\t\t\ts->ctx->stats.sess_connect_renegotiate++;\n\t\tcase SSL_ST_BEFORE:\n\t\tcase SSL_ST_CONNECT:\n\t\tcase SSL_ST_BEFORE|SSL_ST_CONNECT:\n\t\tcase SSL_ST_OK|SSL_ST_CONNECT:\n\t\t\ts->server=0;\n\t\t\tif (cb != NULL) cb(s,SSL_CB_HANDSHAKE_START,1);\n\t\t\tif ((s->version & 0xff00 ) != (DTLS1_VERSION & 0xff00) &&\n\t\t\t    (s->version & 0xff00 ) != (DTLS1_BAD_VER & 0xff00))\n\t\t\t\t{\n\t\t\t\tSSLerr(SSL_F_DTLS1_CONNECT, ERR_R_INTERNAL_ERROR);\n\t\t\t\tret = -1;\n\t\t\t\tgoto end;\n\t\t\t\t}\n\t\t\ts->type=SSL_ST_CONNECT;\n\t\t\tif (s->init_buf == NULL)\n\t\t\t\t{\n\t\t\t\tif ((buf=BUF_MEM_new()) == NULL)\n\t\t\t\t\t{\n\t\t\t\t\tret= -1;\n\t\t\t\t\tgoto end;\n\t\t\t\t\t}\n\t\t\t\tif (!BUF_MEM_grow(buf,SSL3_RT_MAX_PLAIN_LENGTH))\n\t\t\t\t\t{\n\t\t\t\t\tret= -1;\n\t\t\t\t\tgoto end;\n\t\t\t\t\t}\n\t\t\t\ts->init_buf=buf;\n\t\t\t\tbuf=NULL;\n\t\t\t\t}\n\t\t\tif (!ssl3_setup_buffers(s)) { ret= -1; goto end; }\n\t\t\tif (!ssl_init_wbio_buffer(s,0)) { ret= -1; goto end; }\n\t\t\ts->state=SSL3_ST_CW_CLNT_HELLO_A;\n\t\t\ts->ctx->stats.sess_connect++;\n\t\t\ts->init_num=0;\n\t\t\tmemset(s->s3->client_random,0,sizeof(s->s3->client_random));\n\t\t\ts->d1->send_cookie = 0;\n\t\t\ts->hit = 0;\n\t\t\tbreak;\n#ifndef OPENSSL_NO_SCTP\n\t\tcase DTLS1_SCTP_ST_CR_READ_SOCK:\n\t\t\tif (BIO_dgram_sctp_msg_waiting(SSL_get_rbio(s)))\n\t\t\t{\n\t\t\t\ts->s3->in_read_app_data=2;\n\t\t\t\ts->rwstate=SSL_READING;\n\t\t\t\tBIO_clear_retry_flags(SSL_get_rbio(s));\n\t\t\t\tBIO_set_retry_read(SSL_get_rbio(s));\n\t\t\t\tret = -1;\n\t\t\t\tgoto end;\n\t\t\t}\n\t\t\ts->state=s->s3->tmp.next_state;\n\t\t\tbreak;\n\t\tcase DTLS1_SCTP_ST_CW_WRITE_SOCK:\n\t\t\tret = BIO_dgram_sctp_wait_for_dry(SSL_get_wbio(s));\n\t\t\tif (ret < 0) goto end;\n\t\t\tif (ret == 0)\n\t\t\t{\n\t\t\t\ts->s3->in_read_app_data=2;\n\t\t\t\ts->rwstate=SSL_READING;\n\t\t\t\tBIO_clear_retry_flags(SSL_get_rbio(s));\n\t\t\t\tBIO_set_retry_read(SSL_get_rbio(s));\n\t\t\t\tret = -1;\n\t\t\t\tgoto end;\n\t\t\t}\n\t\t\ts->state=s->d1->next_state;\n\t\t\tbreak;\n#endif\n\t\tcase SSL3_ST_CW_CLNT_HELLO_A:\n\t\tcase SSL3_ST_CW_CLNT_HELLO_B:\n\t\t\ts->shutdown=0;\n\t\t\tssl3_init_finished_mac(s);\n\t\t\tdtls1_start_timer(s);\n\t\t\tret=ssl3_client_hello(s);\n\t\t\tif (ret <= 0) goto end;\n\t\t\tif ( s->d1->send_cookie)\n\t\t\t\t{\n\t\t\t\ts->state=SSL3_ST_CW_FLUSH;\n\t\t\t\ts->s3->tmp.next_state=SSL3_ST_CR_SRVR_HELLO_A;\n\t\t\t\t}\n\t\t\telse\n\t\t\t\ts->state=SSL3_ST_CR_SRVR_HELLO_A;\n\t\t\ts->init_num=0;\n#ifndef OPENSSL_NO_SCTP\n\t\t\tif (!BIO_dgram_is_sctp(SSL_get_wbio(s)))\n\t\t\t\t{\n#endif\n\t\t\t\tif (s->bbio != s->wbio)\n\t\t\t\t\ts->wbio=BIO_push(s->bbio,s->wbio);\n#ifndef OPENSSL_NO_SCTP\n\t\t\t\t}\n#endif\n\t\t\tbreak;\n\t\tcase SSL3_ST_CR_SRVR_HELLO_A:\n\t\tcase SSL3_ST_CR_SRVR_HELLO_B:\n\t\t\tret=ssl3_get_server_hello(s);\n\t\t\tif (ret <= 0) goto end;\n\t\t\telse\n\t\t\t\t{\n\t\t\t\tif (s->hit)\n\t\t\t\t\t{\n#ifndef OPENSSL_NO_SCTP\n\t\t\t\t\tsnprintf((char*) labelbuffer, sizeof(DTLS1_SCTP_AUTH_LABEL),\n\t\t\t\t\t         DTLS1_SCTP_AUTH_LABEL);\n\t\t\t\t\tSSL_export_keying_material(s, sctpauthkey,\n\t\t\t\t\t                           sizeof(sctpauthkey), labelbuffer,\n\t\t\t\t\t                           sizeof(labelbuffer), NULL, 0, 0);\n\t\t\t\t\tBIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_ADD_AUTH_KEY,\n\t\t\t\t\t\t\t sizeof(sctpauthkey), sctpauthkey);\n#endif\n\t\t\t\t\ts->state=SSL3_ST_CR_FINISHED_A;\n\t\t\t\t\t}\n\t\t\t\telse\n\t\t\t\t\ts->state=DTLS1_ST_CR_HELLO_VERIFY_REQUEST_A;\n\t\t\t\t}\n\t\t\ts->init_num=0;\n\t\t\tbreak;\n\t\tcase DTLS1_ST_CR_HELLO_VERIFY_REQUEST_A:\n\t\tcase DTLS1_ST_CR_HELLO_VERIFY_REQUEST_B:\n\t\t\tret = dtls1_get_hello_verify(s);\n\t\t\tif ( ret <= 0)\n\t\t\t\tgoto end;\n\t\t\tdtls1_stop_timer(s);\n\t\t\tif ( s->d1->send_cookie)\n\t\t\t\ts->state=SSL3_ST_CW_CLNT_HELLO_A;\n\t\t\telse\n\t\t\t\ts->state = SSL3_ST_CR_CERT_A;\n\t\t\ts->init_num = 0;\n\t\t\tbreak;\n\t\tcase SSL3_ST_CR_CERT_A:\n\t\tcase SSL3_ST_CR_CERT_B:\n#ifndef OPENSSL_NO_TLSEXT\n\t\t\tret=ssl3_check_finished(s);\n\t\t\tif (ret <= 0) goto end;\n\t\t\tif (ret == 2)\n\t\t\t\t{\n\t\t\t\ts->hit = 1;\n\t\t\t\tif (s->tlsext_ticket_expected)\n\t\t\t\t\ts->state=SSL3_ST_CR_SESSION_TICKET_A;\n\t\t\t\telse\n\t\t\t\t\ts->state=SSL3_ST_CR_FINISHED_A;\n\t\t\t\ts->init_num=0;\n\t\t\t\tbreak;\n\t\t\t\t}\n#endif\n\t\t\tif (!(s->s3->tmp.new_cipher->algorithm_auth & SSL_aNULL) &&\n\t\t\t    !(s->s3->tmp.new_cipher->algorithm_mkey & SSL_kPSK))\n\t\t\t\t{\n\t\t\t\tret=ssl3_get_server_certificate(s);\n\t\t\t\tif (ret <= 0) goto end;\n#ifndef OPENSSL_NO_TLSEXT\n\t\t\t\tif (s->tlsext_status_expected)\n\t\t\t\t\ts->state=SSL3_ST_CR_CERT_STATUS_A;\n\t\t\t\telse\n\t\t\t\t\ts->state=SSL3_ST_CR_KEY_EXCH_A;\n\t\t\t\t}\n\t\t\telse\n\t\t\t\t{\n\t\t\t\tskip = 1;\n\t\t\t\ts->state=SSL3_ST_CR_KEY_EXCH_A;\n\t\t\t\t}\n#else\n\t\t\t\t}\n\t\t\telse\n\t\t\t\tskip=1;\n\t\t\ts->state=SSL3_ST_CR_KEY_EXCH_A;\n#endif\n\t\t\ts->init_num=0;\n\t\t\tbreak;\n\t\tcase SSL3_ST_CR_KEY_EXCH_A:\n\t\tcase SSL3_ST_CR_KEY_EXCH_B:\n\t\t\tret=ssl3_get_key_exchange(s);\n\t\t\tif (ret <= 0) goto end;\n\t\t\ts->state=SSL3_ST_CR_CERT_REQ_A;\n\t\t\ts->init_num=0;\n\t\t\tif (!ssl3_check_cert_and_algorithm(s))\n\t\t\t\t{\n\t\t\t\tret= -1;\n\t\t\t\tgoto end;\n\t\t\t\t}\n\t\t\tbreak;\n\t\tcase SSL3_ST_CR_CERT_REQ_A:\n\t\tcase SSL3_ST_CR_CERT_REQ_B:\n\t\t\tret=ssl3_get_certificate_request(s);\n\t\t\tif (ret <= 0) goto end;\n\t\t\ts->state=SSL3_ST_CR_SRVR_DONE_A;\n\t\t\ts->init_num=0;\n\t\t\tbreak;\n\t\tcase SSL3_ST_CR_SRVR_DONE_A:\n\t\tcase SSL3_ST_CR_SRVR_DONE_B:\n\t\t\tret=ssl3_get_server_done(s);\n\t\t\tif (ret <= 0) goto end;\n\t\t\tdtls1_stop_timer(s);\n\t\t\tif (s->s3->tmp.cert_req)\n\t\t\t\ts->s3->tmp.next_state=SSL3_ST_CW_CERT_A;\n\t\t\telse\n\t\t\t\ts->s3->tmp.next_state=SSL3_ST_CW_KEY_EXCH_A;\n\t\t\ts->init_num=0;\n#ifndef OPENSSL_NO_SCTP\n\t\t\tif (BIO_dgram_is_sctp(SSL_get_wbio(s)) &&\n\t\t\t    state == SSL_ST_RENEGOTIATE)\n\t\t\t\ts->state=DTLS1_SCTP_ST_CR_READ_SOCK;\n\t\t\telse\n#endif\n\t\t\ts->state=s->s3->tmp.next_state;\n\t\t\tbreak;\n\t\tcase SSL3_ST_CW_CERT_A:\n\t\tcase SSL3_ST_CW_CERT_B:\n\t\tcase SSL3_ST_CW_CERT_C:\n\t\tcase SSL3_ST_CW_CERT_D:\n\t\t\tdtls1_start_timer(s);\n\t\t\tret=ssl3_send_client_certificate(s);\n\t\t\tif (ret <= 0) goto end;\n\t\t\ts->state=SSL3_ST_CW_KEY_EXCH_A;\n\t\t\ts->init_num=0;\n\t\t\tbreak;\n\t\tcase SSL3_ST_CW_KEY_EXCH_A:\n\t\tcase SSL3_ST_CW_KEY_EXCH_B:\n\t\t\tdtls1_start_timer(s);\n\t\t\tret=ssl3_send_client_key_exchange(s);\n\t\t\tif (ret <= 0) goto end;\n#ifndef OPENSSL_NO_SCTP\n\t\t\tsnprintf((char*) labelbuffer, sizeof(DTLS1_SCTP_AUTH_LABEL),\n\t\t\t         DTLS1_SCTP_AUTH_LABEL);\n\t\t\tSSL_export_keying_material(s, sctpauthkey,\n\t\t\t                           sizeof(sctpauthkey), labelbuffer,\n\t\t\t                           sizeof(labelbuffer), NULL, 0, 0);\n\t\t\tBIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_ADD_AUTH_KEY,\n\t\t\t\t\t sizeof(sctpauthkey), sctpauthkey);\n#endif\n\t\t\tif (s->s3->tmp.cert_req == 1)\n\t\t\t\t{\n\t\t\t\ts->state=SSL3_ST_CW_CERT_VRFY_A;\n\t\t\t\t}\n\t\t\telse\n\t\t\t\t{\n#ifndef OPENSSL_NO_SCTP\n\t\t\t\tif (BIO_dgram_is_sctp(SSL_get_wbio(s)))\n\t\t\t\t\t{\n\t\t\t\t\ts->d1->next_state=SSL3_ST_CW_CHANGE_A;\n\t\t\t\t\ts->state=DTLS1_SCTP_ST_CW_WRITE_SOCK;\n\t\t\t\t\t}\n\t\t\t\telse\n#endif\n\t\t\t\t\ts->state=SSL3_ST_CW_CHANGE_A;\n\t\t\t\ts->s3->change_cipher_spec=0;\n\t\t\t\t}\n\t\t\ts->init_num=0;\n\t\t\tbreak;\n\t\tcase SSL3_ST_CW_CERT_VRFY_A:\n\t\tcase SSL3_ST_CW_CERT_VRFY_B:\n\t\t\tdtls1_start_timer(s);\n\t\t\tret=ssl3_send_client_verify(s);\n\t\t\tif (ret <= 0) goto end;\n#ifndef OPENSSL_NO_SCTP\n\t\t\tif (BIO_dgram_is_sctp(SSL_get_wbio(s)))\n\t\t\t{\n\t\t\t\ts->d1->next_state=SSL3_ST_CW_CHANGE_A;\n\t\t\t\ts->state=DTLS1_SCTP_ST_CW_WRITE_SOCK;\n\t\t\t}\n\t\t\telse\n#endif\n\t\t\t\ts->state=SSL3_ST_CW_CHANGE_A;\n\t\t\ts->init_num=0;\n\t\t\ts->s3->change_cipher_spec=0;\n\t\t\tbreak;\n\t\tcase SSL3_ST_CW_CHANGE_A:\n\t\tcase SSL3_ST_CW_CHANGE_B:\n\t\t\tif (!s->hit)\n\t\t\t\tdtls1_start_timer(s);\n\t\t\tret=dtls1_send_change_cipher_spec(s,\n\t\t\t\tSSL3_ST_CW_CHANGE_A,SSL3_ST_CW_CHANGE_B);\n\t\t\tif (ret <= 0) goto end;\n\t\t\ts->state=SSL3_ST_CW_FINISHED_A;\n\t\t\ts->init_num=0;\n\t\t\ts->session->cipher=s->s3->tmp.new_cipher;\n#ifdef OPENSSL_NO_COMP\n\t\t\ts->session->compress_meth=0;\n#else\n\t\t\tif (s->s3->tmp.new_compression == NULL)\n\t\t\t\ts->session->compress_meth=0;\n\t\t\telse\n\t\t\t\ts->session->compress_meth=\n\t\t\t\t\ts->s3->tmp.new_compression->id;\n#endif\n\t\t\tif (!s->method->ssl3_enc->setup_key_block(s))\n\t\t\t\t{\n\t\t\t\tret= -1;\n\t\t\t\tgoto end;\n\t\t\t\t}\n\t\t\tif (!s->method->ssl3_enc->change_cipher_state(s,\n\t\t\t\tSSL3_CHANGE_CIPHER_CLIENT_WRITE))\n\t\t\t\t{\n\t\t\t\tret= -1;\n\t\t\t\tgoto end;\n\t\t\t\t}\n#ifndef OPENSSL_NO_SCTP\n\t\t\t\tif (s->hit)\n\t\t\t\t\t{\n\t\t\t\t\tBIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_NEXT_AUTH_KEY, 0, NULL);\n\t\t\t\t\t}\n#endif\n\t\t\tdtls1_reset_seq_numbers(s, SSL3_CC_WRITE);\n\t\t\tbreak;\n\t\tcase SSL3_ST_CW_FINISHED_A:\n\t\tcase SSL3_ST_CW_FINISHED_B:\n\t\t\tif (!s->hit)\n\t\t\t\tdtls1_start_timer(s);\n\t\t\tret=ssl3_send_finished(s,\n\t\t\t\tSSL3_ST_CW_FINISHED_A,SSL3_ST_CW_FINISHED_B,\n\t\t\t\ts->method->ssl3_enc->client_finished_label,\n\t\t\t\ts->method->ssl3_enc->client_finished_label_len);\n\t\t\tif (ret <= 0) goto end;\n\t\t\ts->state=SSL3_ST_CW_FLUSH;\n\t\t\ts->s3->flags&= ~SSL3_FLAGS_POP_BUFFER;\n\t\t\tif (s->hit)\n\t\t\t\t{\n\t\t\t\ts->s3->tmp.next_state=SSL_ST_OK;\n#ifndef OPENSSL_NO_SCTP\n\t\t\t\tif (BIO_dgram_is_sctp(SSL_get_wbio(s)))\n\t\t\t\t\t{\n\t\t\t\t\t\ts->d1->next_state = s->s3->tmp.next_state;\n\t\t\t\t\t\ts->s3->tmp.next_state=DTLS1_SCTP_ST_CW_WRITE_SOCK;\n\t\t\t\t\t}\n#endif\n\t\t\t\tif (s->s3->flags & SSL3_FLAGS_DELAY_CLIENT_FINISHED)\n\t\t\t\t\t{\n\t\t\t\t\ts->state=SSL_ST_OK;\n#ifndef OPENSSL_NO_SCTP\n\t\t\t\t\tif (BIO_dgram_is_sctp(SSL_get_wbio(s)))\n\t\t\t\t\t\t{\n\t\t\t\t\t\t\ts->d1->next_state = SSL_ST_OK;\n\t\t\t\t\t\t\ts->state=DTLS1_SCTP_ST_CW_WRITE_SOCK;\n\t\t\t\t\t\t}\n#endif\n\t\t\t\t\ts->s3->flags|=SSL3_FLAGS_POP_BUFFER;\n\t\t\t\t\ts->s3->delay_buf_pop_ret=0;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\telse\n\t\t\t\t{\n#ifndef OPENSSL_NO_SCTP\n\t\t\t\tBIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_NEXT_AUTH_KEY, 0, NULL);\n#endif\n#ifndef OPENSSL_NO_TLSEXT\n\t\t\t\tif (s->tlsext_ticket_expected)\n\t\t\t\t\ts->s3->tmp.next_state=SSL3_ST_CR_SESSION_TICKET_A;\n\t\t\t\telse\n#endif\n\t\t\t\ts->s3->tmp.next_state=SSL3_ST_CR_FINISHED_A;\n\t\t\t\t}\n\t\t\ts->init_num=0;\n\t\t\tbreak;\n#ifndef OPENSSL_NO_TLSEXT\n\t\tcase SSL3_ST_CR_SESSION_TICKET_A:\n\t\tcase SSL3_ST_CR_SESSION_TICKET_B:\n\t\t\tret=ssl3_get_new_session_ticket(s);\n\t\t\tif (ret <= 0) goto end;\n\t\t\ts->state=SSL3_ST_CR_FINISHED_A;\n\t\t\ts->init_num=0;\n\t\tbreak;\n\t\tcase SSL3_ST_CR_CERT_STATUS_A:\n\t\tcase SSL3_ST_CR_CERT_STATUS_B:\n\t\t\tret=ssl3_get_cert_status(s);\n\t\t\tif (ret <= 0) goto end;\n\t\t\ts->state=SSL3_ST_CR_KEY_EXCH_A;\n\t\t\ts->init_num=0;\n\t\tbreak;\n#endif\n\t\tcase SSL3_ST_CR_FINISHED_A:\n\t\tcase SSL3_ST_CR_FINISHED_B:\n\t\t\ts->d1->change_cipher_spec_ok = 1;\n\t\t\tret=ssl3_get_finished(s,SSL3_ST_CR_FINISHED_A,\n\t\t\t\tSSL3_ST_CR_FINISHED_B);\n\t\t\tif (ret <= 0) goto end;\n\t\t\tdtls1_stop_timer(s);\n\t\t\tif (s->hit)\n\t\t\t\ts->state=SSL3_ST_CW_CHANGE_A;\n\t\t\telse\n\t\t\t\ts->state=SSL_ST_OK;\n#ifndef OPENSSL_NO_SCTP\n\t\t\tif (BIO_dgram_is_sctp(SSL_get_wbio(s)) &&\n\t\t\t\tstate == SSL_ST_RENEGOTIATE)\n\t\t\t\t{\n\t\t\t\ts->d1->next_state=s->state;\n\t\t\t\ts->state=DTLS1_SCTP_ST_CW_WRITE_SOCK;\n\t\t\t\t}\n#endif\n\t\t\ts->init_num=0;\n\t\t\tbreak;\n\t\tcase SSL3_ST_CW_FLUSH:\n\t\t\ts->rwstate=SSL_WRITING;\n\t\t\tif (BIO_flush(s->wbio) <= 0)\n\t\t\t\t{\n\t\t\t\tif (!BIO_should_retry(s->wbio))\n\t\t\t\t\t{\n\t\t\t\t\ts->rwstate=SSL_NOTHING;\n\t\t\t\t\ts->state=s->s3->tmp.next_state;\n\t\t\t\t\t}\n\t\t\t\tret= -1;\n\t\t\t\tgoto end;\n\t\t\t\t}\n\t\t\ts->rwstate=SSL_NOTHING;\n\t\t\ts->state=s->s3->tmp.next_state;\n\t\t\tbreak;\n\t\tcase SSL_ST_OK:\n\t\t\tssl3_cleanup_key_block(s);\n#if 0\n\t\t\tif (s->init_buf != NULL)\n\t\t\t\t{\n\t\t\t\tBUF_MEM_free(s->init_buf);\n\t\t\t\ts->init_buf=NULL;\n\t\t\t\t}\n#endif\n\t\t\tif (!(s->s3->flags & SSL3_FLAGS_POP_BUFFER))\n\t\t\t\tssl_free_wbio_buffer(s);\n\t\t\ts->init_num=0;\n\t\t\ts->renegotiate=0;\n\t\t\ts->new_session=0;\n\t\t\tssl_update_cache(s,SSL_SESS_CACHE_CLIENT);\n\t\t\tif (s->hit) s->ctx->stats.sess_hit++;\n\t\t\tret=1;\n\t\t\ts->handshake_func=dtls1_connect;\n\t\t\ts->ctx->stats.sess_connect_good++;\n\t\t\tif (cb != NULL) cb(s,SSL_CB_HANDSHAKE_DONE,1);\n\t\t\ts->d1->handshake_read_seq  = 0;\n\t\t\ts->d1->next_handshake_write_seq = 0;\n\t\t\tgoto end;\n\t\tdefault:\n\t\t\tSSLerr(SSL_F_DTLS1_CONNECT,SSL_R_UNKNOWN_STATE);\n\t\t\tret= -1;\n\t\t\tgoto end;\n\t\t\t}\n\t\tif (!s->s3->tmp.reuse_message && !skip)\n\t\t\t{\n\t\t\tif (s->debug)\n\t\t\t\t{\n\t\t\t\tif ((ret=BIO_flush(s->wbio)) <= 0)\n\t\t\t\t\tgoto end;\n\t\t\t\t}\n\t\t\tif ((cb != NULL) && (s->state != state))\n\t\t\t\t{\n\t\t\t\tnew_state=s->state;\n\t\t\t\ts->state=state;\n\t\t\t\tcb(s,SSL_CB_CONNECT_LOOP,1);\n\t\t\t\ts->state=new_state;\n\t\t\t\t}\n\t\t\t}\n\t\tskip=0;\n\t\t}\nend:\n\ts->in_handshake--;\n#ifndef OPENSSL_NO_SCTP\n\tBIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_SET_IN_HANDSHAKE, s->in_handshake, NULL);\n#endif\n\tif (buf != NULL)\n\t\tBUF_MEM_free(buf);\n\tif (cb != NULL)\n\t\tcb(s,SSL_CB_CONNECT_EXIT,ret);\n\treturn(ret);\n\t}', 'int ssl3_get_key_exchange(SSL *s)\n\t{\n#ifndef OPENSSL_NO_RSA\n\tunsigned char *q,md_buf[EVP_MAX_MD_SIZE*2];\n#endif\n\tEVP_MD_CTX md_ctx;\n\tunsigned char *param,*p;\n\tint al,j,ok;\n\tlong i,param_len,n,alg_k,alg_a;\n\tEVP_PKEY *pkey=NULL;\n\tconst EVP_MD *md = NULL;\n#ifndef OPENSSL_NO_RSA\n\tRSA *rsa=NULL;\n#endif\n#ifndef OPENSSL_NO_DH\n\tDH *dh=NULL;\n#endif\n#ifndef OPENSSL_NO_ECDH\n\tEC_KEY *ecdh = NULL;\n\tBN_CTX *bn_ctx = NULL;\n\tEC_POINT *srvr_ecpoint = NULL;\n\tint curve_nid = 0;\n\tint encoded_pt_len = 0;\n#endif\n\tn=s->method->ssl_get_message(s,\n\t\tSSL3_ST_CR_KEY_EXCH_A,\n\t\tSSL3_ST_CR_KEY_EXCH_B,\n\t\t-1,\n\t\ts->max_cert_list,\n\t\t&ok);\n\tif (!ok) return((int)n);\n\tif (s->s3->tmp.message_type != SSL3_MT_SERVER_KEY_EXCHANGE)\n\t\t{\n#ifndef OPENSSL_NO_PSK\n\t\tif (s->s3->tmp.new_cipher->algorithm_mkey & SSL_kPSK)\n\t\t\t{\n\t\t\ts->session->sess_cert=ssl_sess_cert_new();\n\t\t\tif (s->ctx->psk_identity_hint)\n\t\t\t\tOPENSSL_free(s->ctx->psk_identity_hint);\n\t\t\ts->ctx->psk_identity_hint = NULL;\n\t\t\t}\n#endif\n\t\ts->s3->tmp.reuse_message=1;\n\t\treturn(1);\n\t\t}\n\tparam=p=(unsigned char *)s->init_msg;\n\tif (s->session->sess_cert != NULL)\n\t\t{\n#ifndef OPENSSL_NO_RSA\n\t\tif (s->session->sess_cert->peer_rsa_tmp != NULL)\n\t\t\t{\n\t\t\tRSA_free(s->session->sess_cert->peer_rsa_tmp);\n\t\t\ts->session->sess_cert->peer_rsa_tmp=NULL;\n\t\t\t}\n#endif\n#ifndef OPENSSL_NO_DH\n\t\tif (s->session->sess_cert->peer_dh_tmp)\n\t\t\t{\n\t\t\tDH_free(s->session->sess_cert->peer_dh_tmp);\n\t\t\ts->session->sess_cert->peer_dh_tmp=NULL;\n\t\t\t}\n#endif\n#ifndef OPENSSL_NO_ECDH\n\t\tif (s->session->sess_cert->peer_ecdh_tmp)\n\t\t\t{\n\t\t\tEC_KEY_free(s->session->sess_cert->peer_ecdh_tmp);\n\t\t\ts->session->sess_cert->peer_ecdh_tmp=NULL;\n\t\t\t}\n#endif\n\t\t}\n\telse\n\t\t{\n\t\ts->session->sess_cert=ssl_sess_cert_new();\n\t\t}\n\tparam_len=0;\n\talg_k=s->s3->tmp.new_cipher->algorithm_mkey;\n\talg_a=s->s3->tmp.new_cipher->algorithm_auth;\n\tEVP_MD_CTX_init(&md_ctx);\n\tal=SSL_AD_DECODE_ERROR;\n#ifndef OPENSSL_NO_PSK\n\tif (alg_k & SSL_kPSK)\n\t\t{\n\t\tchar tmp_id_hint[PSK_MAX_IDENTITY_LEN+1];\n\t\tparam_len = 2;\n\t\tif (param_len > n)\n\t\t\t{\n\t\t\tSSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,\n\t\t\t\tSSL_R_LENGTH_TOO_SHORT);\n\t\t\tgoto f_err;\n\t\t\t}\n\t\tn2s(p,i);\n\t\tif (i > PSK_MAX_IDENTITY_LEN)\n\t\t\t{\n\t\t\tal=SSL_AD_HANDSHAKE_FAILURE;\n\t\t\tSSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,\n\t\t\t\tSSL_R_DATA_LENGTH_TOO_LONG);\n\t\t\tgoto f_err;\n\t\t\t}\n\t\tif (i > n - param_len)\n\t\t\t{\n\t\t\tSSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,\n\t\t\t\tSSL_R_BAD_PSK_IDENTITY_HINT_LENGTH);\n\t\t\tgoto f_err;\n\t\t\t}\n\t\tparam_len += i;\n\t\tmemcpy(tmp_id_hint, p, i);\n\t\tmemset(tmp_id_hint+i, 0, PSK_MAX_IDENTITY_LEN+1-i);\n\t\tif (s->ctx->psk_identity_hint != NULL)\n\t\t\tOPENSSL_free(s->ctx->psk_identity_hint);\n\t\ts->ctx->psk_identity_hint = BUF_strdup(tmp_id_hint);\n\t\tif (s->ctx->psk_identity_hint == NULL)\n\t\t\t{\n\t\t\tal=SSL_AD_HANDSHAKE_FAILURE;\n\t\t\tSSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE, ERR_R_MALLOC_FAILURE);\n\t\t\tgoto f_err;\n\t\t\t}\n\t\tp+=i;\n\t\tn-=param_len;\n\t\t}\n\telse\n#endif\n#ifndef OPENSSL_NO_SRP\n\tif (alg_k & SSL_kSRP)\n\t\t{\n\t\tparam_len = 2;\n\t\tif (param_len > n)\n\t\t\t{\n\t\t\tSSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,\n\t\t\t\tSSL_R_LENGTH_TOO_SHORT);\n\t\t\tgoto f_err;\n\t\t\t}\n\t\tn2s(p,i);\n\t\tif (i > n - param_len)\n\t\t\t{\n\t\t\tSSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_SRP_N_LENGTH);\n\t\t\tgoto f_err;\n\t\t\t}\n\t\tparam_len += i;\n\t\tif (!(s->srp_ctx.N=BN_bin2bn(p,i,NULL)))\n\t\t\t{\n\t\t\tSSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB);\n\t\t\tgoto err;\n\t\t\t}\n\t\tp+=i;\n\t\tif (2 > n - param_len)\n\t\t\t{\n\t\t\tSSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,\n\t\t\t\tSSL_R_LENGTH_TOO_SHORT);\n\t\t\tgoto f_err;\n\t\t\t}\n\t\tparam_len += 2;\n\t\tn2s(p,i);\n\t\tif (i > n - param_len)\n\t\t\t{\n\t\t\tSSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_SRP_G_LENGTH);\n\t\t\tgoto f_err;\n\t\t\t}\n\t\tparam_len += i;\n\t\tif (!(s->srp_ctx.g=BN_bin2bn(p,i,NULL)))\n\t\t\t{\n\t\t\tSSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB);\n\t\t\tgoto err;\n\t\t\t}\n\t\tp+=i;\n\t\tif (1 > n - param_len)\n\t\t\t{\n\t\t\tSSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,\n\t\t\t\tSSL_R_LENGTH_TOO_SHORT);\n\t\t\tgoto f_err;\n\t\t\t}\n\t\tparam_len += 1;\n\t\ti = (unsigned int)(p[0]);\n\t\tp++;\n\t\tif (i > n - param_len)\n\t\t\t{\n\t\t\tSSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_SRP_S_LENGTH);\n\t\t\tgoto f_err;\n\t\t\t}\n\t\tparam_len += i;\n\t\tif (!(s->srp_ctx.s=BN_bin2bn(p,i,NULL)))\n\t\t\t{\n\t\t\tSSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB);\n\t\t\tgoto err;\n\t\t\t}\n\t\tp+=i;\n\t\tif (2 > n - param_len)\n\t\t\t{\n\t\t\tSSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,\n\t\t\t\tSSL_R_LENGTH_TOO_SHORT);\n\t\t\tgoto f_err;\n\t\t\t}\n\t\tparam_len += 2;\n\t\tn2s(p,i);\n\t\tif (i > n - param_len)\n\t\t\t{\n\t\t\tSSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_SRP_B_LENGTH);\n\t\t\tgoto f_err;\n\t\t\t}\n\t\tparam_len += i;\n\t\tif (!(s->srp_ctx.B=BN_bin2bn(p,i,NULL)))\n\t\t\t{\n\t\t\tSSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB);\n\t\t\tgoto err;\n\t\t\t}\n\t\tp+=i;\n\t\tn-=param_len;\n\t\tif (!srp_verify_server_param(s, &al))\n\t\t\t{\n\t\t\tSSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_SRP_PARAMETERS);\n\t\t\tgoto f_err;\n\t\t\t}\n#ifndef OPENSSL_NO_RSA\n\t\tif (alg_a & SSL_aRSA)\n\t\t\tpkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509);\n#else\n\t\tif (0)\n\t\t\t;\n#endif\n#ifndef OPENSSL_NO_DSA\n\t\telse if (alg_a & SSL_aDSS)\n\t\t\tpkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_DSA_SIGN].x509);\n#endif\n\t\t}\n\telse\n#endif\n#ifndef OPENSSL_NO_RSA\n\tif (alg_k & SSL_kRSA)\n\t\t{\n\t\tif ((rsa=RSA_new()) == NULL)\n\t\t\t{\n\t\t\tSSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);\n\t\t\tgoto err;\n\t\t\t}\n\t\tparam_len = 2;\n\t\tif (param_len > n)\n\t\t\t{\n\t\t\tSSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,\n\t\t\t\tSSL_R_LENGTH_TOO_SHORT);\n\t\t\tgoto f_err;\n\t\t\t}\n\t\tn2s(p,i);\n\t\tif (i > n - param_len)\n\t\t\t{\n\t\t\tSSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_RSA_MODULUS_LENGTH);\n\t\t\tgoto f_err;\n\t\t\t}\n\t\tparam_len += i;\n\t\tif (!(rsa->n=BN_bin2bn(p,i,rsa->n)))\n\t\t\t{\n\t\t\tSSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB);\n\t\t\tgoto err;\n\t\t\t}\n\t\tp+=i;\n\t\tif (2 > n - param_len)\n\t\t\t{\n\t\t\tSSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,\n\t\t\t\tSSL_R_LENGTH_TOO_SHORT);\n\t\t\tgoto f_err;\n\t\t\t}\n\t\tparam_len += 2;\n\t\tn2s(p,i);\n\t\tif (i > n - param_len)\n\t\t\t{\n\t\t\tSSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_RSA_E_LENGTH);\n\t\t\tgoto f_err;\n\t\t\t}\n\t\tparam_len += i;\n\t\tif (!(rsa->e=BN_bin2bn(p,i,rsa->e)))\n\t\t\t{\n\t\t\tSSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB);\n\t\t\tgoto err;\n\t\t\t}\n\t\tp+=i;\n\t\tn-=param_len;\n\t\tif (alg_a & SSL_aRSA)\n\t\t\tpkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509);\n\t\telse\n\t\t\t{\n\t\t\tSSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR);\n\t\t\tgoto err;\n\t\t\t}\n\t\ts->session->sess_cert->peer_rsa_tmp=rsa;\n\t\trsa=NULL;\n\t\t}\n#else\n\tif (0)\n\t\t;\n#endif\n#ifndef OPENSSL_NO_DH\n\telse if (alg_k & SSL_kDHE)\n\t\t{\n\t\tif ((dh=DH_new()) == NULL)\n\t\t\t{\n\t\t\tSSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_DH_LIB);\n\t\t\tgoto err;\n\t\t\t}\n\t\tparam_len = 2;\n\t\tif (param_len > n)\n\t\t\t{\n\t\t\tSSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,\n\t\t\t\tSSL_R_LENGTH_TOO_SHORT);\n\t\t\tgoto f_err;\n\t\t\t}\n\t\tn2s(p,i);\n\t\tif (i > n - param_len)\n\t\t\t{\n\t\t\tSSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_DH_P_LENGTH);\n\t\t\tgoto f_err;\n\t\t\t}\n\t\tparam_len += i;\n\t\tif (!(dh->p=BN_bin2bn(p,i,NULL)))\n\t\t\t{\n\t\t\tSSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB);\n\t\t\tgoto err;\n\t\t\t}\n\t\tp+=i;\n\t\tif (2 > n - param_len)\n\t\t\t{\n\t\t\tSSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,\n\t\t\t\tSSL_R_LENGTH_TOO_SHORT);\n\t\t\tgoto f_err;\n\t\t\t}\n\t\tparam_len += 2;\n\t\tn2s(p,i);\n\t\tif (i > n - param_len)\n\t\t\t{\n\t\t\tSSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_DH_G_LENGTH);\n\t\t\tgoto f_err;\n\t\t\t}\n\t\tparam_len += i;\n\t\tif (!(dh->g=BN_bin2bn(p,i,NULL)))\n\t\t\t{\n\t\t\tSSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB);\n\t\t\tgoto err;\n\t\t\t}\n\t\tp+=i;\n\t\tif (2 > n - param_len)\n\t\t\t{\n\t\t\tSSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,\n\t\t\t\tSSL_R_LENGTH_TOO_SHORT);\n\t\t\tgoto f_err;\n\t\t\t}\n\t\tparam_len += 2;\n\t\tn2s(p,i);\n\t\tif (i > n - param_len)\n\t\t\t{\n\t\t\tSSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_DH_PUB_KEY_LENGTH);\n\t\t\tgoto f_err;\n\t\t\t}\n\t\tparam_len += i;\n\t\tif (!(dh->pub_key=BN_bin2bn(p,i,NULL)))\n\t\t\t{\n\t\t\tSSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB);\n\t\t\tgoto err;\n\t\t\t}\n\t\tp+=i;\n\t\tn-=param_len;\n\t\tif (!ssl_security(s, SSL_SECOP_TMP_DH,\n\t\t\t\t\t\tDH_security_bits(dh), 0, dh))\n\t\t\t{\n\t\t\tal=SSL_AD_HANDSHAKE_FAILURE;\n\t\t\tSSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_DH_KEY_TOO_SMALL);\n\t\t\tgoto f_err;\n\t\t\t}\n#ifndef OPENSSL_NO_RSA\n\t\tif (alg_a & SSL_aRSA)\n\t\t\tpkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509);\n#else\n\t\tif (0)\n\t\t\t;\n#endif\n#ifndef OPENSSL_NO_DSA\n\t\telse if (alg_a & SSL_aDSS)\n\t\t\tpkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_DSA_SIGN].x509);\n#endif\n\t\ts->session->sess_cert->peer_dh_tmp=dh;\n\t\tdh=NULL;\n\t\t}\n\telse if ((alg_k & SSL_kDHr) || (alg_k & SSL_kDHd))\n\t\t{\n\t\tal=SSL_AD_ILLEGAL_PARAMETER;\n\t\tSSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_TRIED_TO_USE_UNSUPPORTED_CIPHER);\n\t\tgoto f_err;\n\t\t}\n#endif\n#ifndef OPENSSL_NO_ECDH\n\telse if (alg_k & SSL_kECDHE)\n\t\t{\n\t\tEC_GROUP *ngroup;\n\t\tconst EC_GROUP *group;\n\t\tif ((ecdh=EC_KEY_new()) == NULL)\n\t\t\t{\n\t\t\tSSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);\n\t\t\tgoto err;\n\t\t\t}\n\t\tparam_len=4;\n\t\tif (param_len > n)\n\t\t\t{\n\t\t\tSSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,\n\t\t\t\tSSL_R_LENGTH_TOO_SHORT);\n\t\t\tgoto f_err;\n\t\t\t}\n\t\tif (!tls1_check_curve(s, p, 3))\n\t\t\t{\n\t\t\tSSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_WRONG_CURVE);\n\t\t\tgoto f_err;\n\t\t\t}\n\t\tif ((curve_nid = tls1_ec_curve_id2nid(*(p + 2))) == 0)\n\t\t\t{\n\t\t\tal=SSL_AD_INTERNAL_ERROR;\n\t\t\tSSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_UNABLE_TO_FIND_ECDH_PARAMETERS);\n\t\t\tgoto f_err;\n\t\t\t}\n\t\tngroup = EC_GROUP_new_by_curve_name(curve_nid);\n\t\tif (ngroup == NULL)\n\t\t\t{\n\t\t\tSSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_EC_LIB);\n\t\t\tgoto err;\n\t\t\t}\n\t\tif (EC_KEY_set_group(ecdh, ngroup) == 0)\n\t\t\t{\n\t\t\tSSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_EC_LIB);\n\t\t\tgoto err;\n\t\t\t}\n\t\tEC_GROUP_free(ngroup);\n\t\tgroup = EC_KEY_get0_group(ecdh);\n\t\tif (SSL_C_IS_EXPORT(s->s3->tmp.new_cipher) &&\n\t\t    (EC_GROUP_get_degree(group) > 163))\n\t\t\t{\n\t\t\tal=SSL_AD_EXPORT_RESTRICTION;\n\t\t\tSSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_ECGROUP_TOO_LARGE_FOR_CIPHER);\n\t\t\tgoto f_err;\n\t\t\t}\n\t\tp+=3;\n\t\tif (((srvr_ecpoint = EC_POINT_new(group)) == NULL) ||\n\t\t    ((bn_ctx = BN_CTX_new()) == NULL))\n\t\t\t{\n\t\t\tSSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);\n\t\t\tgoto err;\n\t\t\t}\n\t\tencoded_pt_len = *p;\n\t\tp+=1;\n\t\tif ((encoded_pt_len > n - param_len) ||\n\t\t    (EC_POINT_oct2point(group, srvr_ecpoint,\n\t\t\tp, encoded_pt_len, bn_ctx) == 0))\n\t\t\t{\n\t\t\tSSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_ECPOINT);\n\t\t\tgoto f_err;\n\t\t\t}\n\t\tparam_len += encoded_pt_len;\n\t\tn-=param_len;\n\t\tp+=encoded_pt_len;\n\t\tif (0) ;\n#ifndef OPENSSL_NO_RSA\n\t\telse if (alg_a & SSL_aRSA)\n\t\t\tpkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509);\n#endif\n#ifndef OPENSSL_NO_ECDSA\n\t\telse if (alg_a & SSL_aECDSA)\n\t\t\tpkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_ECC].x509);\n#endif\n\t\tEC_KEY_set_public_key(ecdh, srvr_ecpoint);\n\t\ts->session->sess_cert->peer_ecdh_tmp=ecdh;\n\t\tecdh=NULL;\n\t\tBN_CTX_free(bn_ctx);\n\t\tbn_ctx = NULL;\n\t\tEC_POINT_free(srvr_ecpoint);\n\t\tsrvr_ecpoint = NULL;\n\t\t}\n\telse if (alg_k)\n\t\t{\n\t\tal=SSL_AD_UNEXPECTED_MESSAGE;\n\t\tSSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_UNEXPECTED_MESSAGE);\n\t\tgoto f_err;\n\t\t}\n#endif\n\tif (pkey != NULL)\n\t\t{\n\t\tif (SSL_USE_SIGALGS(s))\n\t\t\t{\n\t\t\tint rv;\n\t\t\tif (2 > n)\n\t\t\t\t{\n\t\t\t\tSSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,\n\t\t\t\t\tSSL_R_LENGTH_TOO_SHORT);\n\t\t\t\tgoto f_err;\n\t\t\t\t}\n\t\t\trv = tls12_check_peer_sigalg(&md, s, p, pkey);\n\t\t\tif (rv == -1)\n\t\t\t\tgoto err;\n\t\t\telse if (rv == 0)\n\t\t\t\t{\n\t\t\t\tgoto f_err;\n\t\t\t\t}\n#ifdef SSL_DEBUG\nfprintf(stderr, "USING TLSv1.2 HASH %s\\n", EVP_MD_name(md));\n#endif\n\t\t\tp += 2;\n\t\t\tn -= 2;\n\t\t\t}\n\t\telse\n\t\t\tmd = EVP_sha1();\n\t\tif (2 > n)\n\t\t\t{\n\t\t\tSSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,\n\t\t\t\tSSL_R_LENGTH_TOO_SHORT);\n\t\t\tgoto f_err;\n\t\t\t}\n\t\tn2s(p,i);\n\t\tn-=2;\n\t\tj=EVP_PKEY_size(pkey);\n\t\tif ((i != n) || (n > j) || (n <= 0))\n\t\t\t{\n\t\t\tSSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_WRONG_SIGNATURE_LENGTH);\n\t\t\tgoto f_err;\n\t\t\t}\n#ifndef OPENSSL_NO_RSA\n\t\tif (pkey->type == EVP_PKEY_RSA && !SSL_USE_SIGALGS(s))\n\t\t\t{\n\t\t\tint num;\n\t\t\tj=0;\n\t\t\tq=md_buf;\n\t\t\tfor (num=2; num > 0; num--)\n\t\t\t\t{\n\t\t\t\tEVP_MD_CTX_set_flags(&md_ctx,\n\t\t\t\t\tEVP_MD_CTX_FLAG_NON_FIPS_ALLOW);\n\t\t\t\tEVP_DigestInit_ex(&md_ctx,(num == 2)\n\t\t\t\t\t?s->ctx->md5:s->ctx->sha1, NULL);\n\t\t\t\tEVP_DigestUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE);\n\t\t\t\tEVP_DigestUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE);\n\t\t\t\tEVP_DigestUpdate(&md_ctx,param,param_len);\n\t\t\t\tEVP_DigestFinal_ex(&md_ctx,q,(unsigned int *)&i);\n\t\t\t\tq+=i;\n\t\t\t\tj+=i;\n\t\t\t\t}\n\t\t\ti=RSA_verify(NID_md5_sha1, md_buf, j, p, n,\n\t\t\t\t\t\t\t\tpkey->pkey.rsa);\n\t\t\tif (i < 0)\n\t\t\t\t{\n\t\t\t\tal=SSL_AD_DECRYPT_ERROR;\n\t\t\t\tSSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_RSA_DECRYPT);\n\t\t\t\tgoto f_err;\n\t\t\t\t}\n\t\t\tif (i == 0)\n\t\t\t\t{\n\t\t\t\tal=SSL_AD_DECRYPT_ERROR;\n\t\t\t\tSSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_SIGNATURE);\n\t\t\t\tgoto f_err;\n\t\t\t\t}\n\t\t\t}\n\t\telse\n#endif\n\t\t\t{\n\t\t\tEVP_VerifyInit_ex(&md_ctx, md, NULL);\n\t\t\tEVP_VerifyUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE);\n\t\t\tEVP_VerifyUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE);\n\t\t\tEVP_VerifyUpdate(&md_ctx,param,param_len);\n\t\t\tif (EVP_VerifyFinal(&md_ctx,p,(int)n,pkey) <= 0)\n\t\t\t\t{\n\t\t\t\tal=SSL_AD_DECRYPT_ERROR;\n\t\t\t\tSSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_SIGNATURE);\n\t\t\t\tgoto f_err;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\telse\n\t\t{\n\t\tif (!(alg_a & (SSL_aNULL|SSL_aSRP)) && !(alg_k & SSL_kPSK))\n\t\t\t{\n\t\t\tif (ssl3_check_cert_and_algorithm(s))\n\t\t\t\tSSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR);\n\t\t\tgoto err;\n\t\t\t}\n\t\tif (n != 0)\n\t\t\t{\n\t\t\tSSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_EXTRA_DATA_IN_MESSAGE);\n\t\t\tgoto f_err;\n\t\t\t}\n\t\t}\n\tEVP_PKEY_free(pkey);\n\tEVP_MD_CTX_cleanup(&md_ctx);\n\treturn(1);\nf_err:\n\tssl3_send_alert(s,SSL3_AL_FATAL,al);\nerr:\n\tEVP_PKEY_free(pkey);\n#ifndef OPENSSL_NO_RSA\n\tif (rsa != NULL)\n\t\tRSA_free(rsa);\n#endif\n#ifndef OPENSSL_NO_DH\n\tif (dh != NULL)\n\t\tDH_free(dh);\n#endif\n#ifndef OPENSSL_NO_ECDH\n\tBN_CTX_free(bn_ctx);\n\tEC_POINT_free(srvr_ecpoint);\n\tif (ecdh != NULL)\n\t\tEC_KEY_free(ecdh);\n#endif\n\tEVP_MD_CTX_cleanup(&md_ctx);\n\treturn(-1);\n\t}', 'int tls1_check_curve(SSL *s, const unsigned char *p, size_t len)\n\t{\n\tconst unsigned char *curves;\n\tsize_t curveslen, i;\n\tunsigned int suiteb_flags = tls1_suiteb(s);\n\tif (len != 3 || p[0] != NAMED_CURVE_TYPE)\n\t\treturn 0;\n\tif (suiteb_flags)\n\t\t{\n\t\tunsigned long cid = s->s3->tmp.new_cipher->id;\n\t\tif (p[1])\n\t\t\treturn 0;\n\t\tif (cid == TLS1_CK_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256)\n\t\t\t{\n\t\t\tif (p[2] != TLSEXT_curve_P_256)\n\t\t\t\treturn 0;\n\t\t\t}\n\t\telse if (cid == TLS1_CK_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384)\n\t\t\t{\n\t\t\tif (p[2] != TLSEXT_curve_P_384)\n\t\t\t\treturn 0;\n\t\t\t}\n\t\telse\n\t\t\treturn 0;\n\t\t}\n\ttls1_get_curvelist(s, 0, &curves, &curveslen);\n\tfor (i = 0; i < curveslen; i += 2, curves += 2)\n\t\t{\n\t\tif (p[1] == curves[0] && p[2] == curves[1])\n\t\t\treturn tls_curve_allowed(s, p + 1, SSL_SECOP_CURVE_CHECK);\n\t\t}\n\treturn 0;\n\t}', 'static int tls_curve_allowed(SSL *s, const unsigned char *curve, int op)\n\t{\n\tconst tls_curve_info *cinfo;\n\tif (curve[0])\n\t\treturn 1;\n\tif ((curve[1] < 1) || ((size_t)curve[1] >\n\t\t\t\tsizeof(nid_list)/sizeof(nid_list[0])))\n\t\treturn 0;\n\tcinfo = &nid_list[curve[1]-1];\n\treturn ssl_security(s, op, cinfo->secbits, cinfo->nid, (void *)curve);\n\t}']