272 lines
9.2 KiB
C
272 lines
9.2 KiB
C
// Copyright 2015-2018 Espressif Systems (Shanghai) PTE LTD
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifdef CONFIG_WPA3_SAE
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#include <stdio.h>
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#include <ctype.h>
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#include <errno.h>
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#include <stdlib.h>
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#include <time.h>
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#include "unity.h"
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#include <string.h>
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#include "crypto/crypto.h"
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#include "../src/common/sae.h"
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#include "utils/wpabuf.h"
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typedef struct crypto_bignum crypto_bignum;
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static struct wpabuf *wpabuf_alloc2(size_t len)
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{
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struct wpabuf *buf = (struct wpabuf *)os_zalloc(sizeof(struct wpabuf) + len);
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if (buf == NULL)
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return NULL;
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buf->size = len;
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return buf;
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}
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/**
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* * wpabuf_free - Free a wpabuf
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* * @buf: wpabuf buffer
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* */
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void wpabuf_free2(struct wpabuf *buf)
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{
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if (buf == NULL)
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return;
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os_free(buf->ext_data);
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os_free(buf);
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}
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TEST_CASE("Test SAE functionality with ECC group", "[wpa3_sae]")
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{
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ESP_LOGI("SAE Test", "### Beginning SAE init and deinit ###");
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{
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/* Test init and deinit*/
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struct sae_data sae;
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memset(&sae, 0, sizeof(sae));
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TEST_ASSERT(sae_set_group(&sae, IANA_SECP256R1) == 0);
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sae_clear_temp_data(&sae);
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sae_clear_data(&sae);
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}
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ESP_LOGI("SAE Test", "=========== Complete ============");
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ESP_LOGI("SAE Test", "### Beginning SAE commit msg formation and parsing ###");
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{
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/* Test SAE commit msg formation and parsing*/
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struct sae_data sae;
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u8 addr1[ETH_ALEN] = {0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0x11};
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u8 addr2[ETH_ALEN] = {0x11, 0x22, 0x33, 0x44, 0x55, 0x66};
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u8 pwd[] = "ESP32-WPA3";
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struct wpabuf *buf;
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int default_groups[] = { IANA_SECP256R1, 0 };
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memset(&sae, 0, sizeof(sae));
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TEST_ASSERT(sae_set_group(&sae, IANA_SECP256R1) == 0);
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TEST_ASSERT(sae_prepare_commit(addr1, addr2, pwd, strlen((const char *)pwd), NULL, &sae) == 0);
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buf = wpabuf_alloc2(SAE_COMMIT_MAX_LEN);
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TEST_ASSERT( buf != NULL);
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sae_write_commit(&sae, buf, NULL, NULL);// No anti-clogging token
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/* Parsing commit created by self will be detected as reflection attack*/
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TEST_ASSERT(sae_parse_commit(&sae,
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wpabuf_mhead(buf), buf->used, NULL, 0, default_groups) == SAE_SILENTLY_DISCARD);
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wpabuf_free2(buf);
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sae_clear_temp_data(&sae);
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sae_clear_data(&sae);
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}
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ESP_LOGI("SAE Test", "=========== Complete ============");
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ESP_LOGI("SAE Test", "### Beginning SAE handshake ###");
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{
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/* SAE handshake*/
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struct sae_data sae1; // STA1 data
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struct sae_data sae2; // STA2 data
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u8 addr1[ETH_ALEN] = {0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0x11};
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u8 addr2[ETH_ALEN] = {0x11, 0x22, 0x33, 0x44, 0x55, 0x66};
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u8 pwd[] = "ESP32-WPA3";
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memset(&sae1, 0, sizeof(sae1));
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memset(&sae2, 0, sizeof(sae2));
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struct wpabuf *buf1, *buf2, *buf3, *buf4;
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int default_groups[] = { IANA_SECP256R1, 0 };
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TEST_ASSERT(sae_set_group(&sae1, IANA_SECP256R1) == 0);
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TEST_ASSERT(sae_set_group(&sae2, IANA_SECP256R1) == 0);
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/* STA1 prepares for commit*/
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TEST_ASSERT(sae_prepare_commit(addr1, addr2, pwd, strlen((const char *)pwd), NULL, &sae1) == 0);
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/* STA2 prepares for commit*/
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TEST_ASSERT(sae_prepare_commit(addr2, addr1, pwd, strlen((const char *)pwd), NULL, &sae2) == 0);
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/* STA1 creates commit msg buffer*/
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buf1 = wpabuf_alloc2(SAE_COMMIT_MAX_LEN);
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TEST_ASSERT( buf1 != NULL);
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sae_write_commit(&sae1, buf1, NULL, NULL);// No anti-clogging token
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ESP_LOG_BUFFER_HEXDUMP("SAE: Commit1", wpabuf_mhead_u8(buf1), wpabuf_len(buf1), ESP_LOG_INFO);
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/* STA2 creates commit msg buffer*/
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buf2 = wpabuf_alloc2(SAE_COMMIT_MAX_LEN);
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TEST_ASSERT( buf2 != NULL);
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sae_write_commit(&sae2, buf2, NULL, NULL);// No anti-clogging token
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ESP_LOG_BUFFER_HEXDUMP("SAE: Commit2", wpabuf_mhead_u8(buf2), wpabuf_len(buf2), ESP_LOG_INFO);
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sae1.state = SAE_COMMITTED;
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sae2.state = SAE_COMMITTED;
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/* STA1 parses STA2 commit*/
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TEST_ASSERT(sae_parse_commit(&sae1,
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wpabuf_mhead(buf2), buf2->used, NULL, 0, default_groups) == 0);
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/* STA2 parses STA1 commit*/
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TEST_ASSERT(sae_parse_commit(&sae2,
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wpabuf_mhead(buf1), buf1->used, NULL, 0, default_groups) == 0);
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/* STA1 processes commit*/
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TEST_ASSERT(sae_process_commit(&sae1) == 0);
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/* STA2 processes commit*/
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TEST_ASSERT(sae_process_commit(&sae2) == 0);
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/* STA1 creates confirm msg buffer*/
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buf3 = wpabuf_alloc2(SAE_COMMIT_MAX_LEN);
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TEST_ASSERT( buf3 != NULL);
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sae_write_confirm(&sae1, buf3);
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ESP_LOG_BUFFER_HEXDUMP("SAE: Confirm1", wpabuf_mhead_u8(buf3), wpabuf_len(buf3), ESP_LOG_INFO);
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/* STA2 creates confirm msg buffer*/
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buf4 = wpabuf_alloc2(SAE_COMMIT_MAX_LEN);
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TEST_ASSERT( buf3 != NULL);
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sae_write_confirm(&sae2, buf4);
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ESP_LOG_BUFFER_HEXDUMP("SAE: Confirm2", wpabuf_mhead_u8(buf4), wpabuf_len(buf4), ESP_LOG_INFO);
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/* STA1 checks confirm from STA2*/
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TEST_ASSERT(sae_check_confirm(&sae1, wpabuf_mhead(buf4), buf4->used) == 0);
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/* STA2 checks confirm from STA1*/
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TEST_ASSERT(sae_check_confirm(&sae2, wpabuf_mhead(buf3), buf3->used) == 0);
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ESP_LOG_BUFFER_HEXDUMP("SAE: PMK1", sae1.pmk, SAE_PMK_LEN, ESP_LOG_INFO);
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ESP_LOG_BUFFER_HEXDUMP("SAE: PMK2", sae2.pmk, SAE_PMK_LEN, ESP_LOG_INFO);
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wpabuf_free2(buf1);
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wpabuf_free2(buf2);
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wpabuf_free2(buf3);
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wpabuf_free2(buf4);
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sae_clear_temp_data(&sae1);
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sae_clear_temp_data(&sae2);
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sae_clear_data(&sae1);
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sae_clear_data(&sae2);
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}
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ESP_LOGI("SAE Test", "=========== Complete ============");
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ESP_LOGI("SAE Test", "### SAE handshake negative testcase. ###");
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{
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/* SAE handshake failure when different passwords are used.*/
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struct sae_data sae1; // STA1 data
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struct sae_data sae2; // STA2 data
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u8 addr1[ETH_ALEN] = {0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0x11};
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u8 addr2[ETH_ALEN] = {0x11, 0x22, 0x33, 0x44, 0x55, 0x66};
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u8 pwd1[] = "abcd1234";
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u8 pwd2[] = "wxyz5678";
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memset(&sae1, 0, sizeof(sae1));
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memset(&sae2, 0, sizeof(sae2));
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struct wpabuf *buf1, *buf2, *buf3, *buf4;
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int default_groups[] = { IANA_SECP256R1, 0 };
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TEST_ASSERT(sae_set_group(&sae1, IANA_SECP256R1) == 0);
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TEST_ASSERT(sae_set_group(&sae2, IANA_SECP256R1) == 0);
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/* STA1 prepares for commit*/
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TEST_ASSERT(sae_prepare_commit(addr1, addr2, pwd1, strlen((const char *)pwd1), NULL, &sae1) == 0);
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/* STA2 prepares for commit*/
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TEST_ASSERT(sae_prepare_commit(addr2, addr1, pwd2, strlen((const char *)pwd2), NULL, &sae2) == 0);
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/* STA1 creates commit msg buffer*/
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buf1 = wpabuf_alloc2(SAE_COMMIT_MAX_LEN);
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TEST_ASSERT( buf1 != NULL);
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sae_write_commit(&sae1, buf1, NULL, NULL);// No anti-clogging token
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/* STA2 creates commit msg buffer*/
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buf2 = wpabuf_alloc2(SAE_COMMIT_MAX_LEN);
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TEST_ASSERT( buf2 != NULL);
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sae_write_commit(&sae2, buf2, NULL, NULL);// No anti-clogging token
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sae1.state = SAE_COMMITTED;
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sae2.state = SAE_COMMITTED;
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/* STA1 parses STA2 commit*/
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TEST_ASSERT(sae_parse_commit(&sae1,
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wpabuf_mhead(buf2), buf2->used, NULL, 0, default_groups) == 0);
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/* STA2 parses STA1 commit*/
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TEST_ASSERT(sae_parse_commit(&sae2,
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wpabuf_mhead(buf1), buf1->used, NULL, 0, default_groups) == 0);
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/* STA1 processes commit*/
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TEST_ASSERT(sae_process_commit(&sae1) == 0);
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/* STA2 processes commit*/
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TEST_ASSERT(sae_process_commit(&sae2) == 0);
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/* STA1 creates confirm msg buffer*/
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buf3 = wpabuf_alloc2(SAE_COMMIT_MAX_LEN);
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TEST_ASSERT( buf3 != NULL);
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sae_write_confirm(&sae1, buf3);
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/* STA2 creates confirm msg buffer*/
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buf4 = wpabuf_alloc2(SAE_COMMIT_MAX_LEN);
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TEST_ASSERT( buf3 != NULL);
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sae_write_confirm(&sae2, buf4);
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/* STA1 checks confirm from STA2 and the check fails*/
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TEST_ASSERT(sae_check_confirm(&sae1, wpabuf_mhead(buf4), buf4->used) != 0);
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/* STA2 checks confirm from STA1 and the check fails*/
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TEST_ASSERT(sae_check_confirm(&sae2, wpabuf_mhead(buf3), buf3->used) != 0);
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wpabuf_free2(buf1);
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wpabuf_free2(buf2);
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wpabuf_free2(buf3);
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wpabuf_free2(buf4);
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sae_clear_temp_data(&sae1);
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sae_clear_temp_data(&sae2);
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sae_clear_data(&sae1);
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sae_clear_data(&sae2);
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}
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ESP_LOGI("SAE Test", "=========== Complete ============");
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}
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#endif /* CONFIG_WPA3_SAE */
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