mirror of
https://github.com/wolfSSL/wolfssl.git
synced 2026-08-23 16:23:18 +02:00
Daniele Lacamera
afe37aabd1
Close API-reachable and file-static gaps in the smaller modules (+52 union conditions): kdf 75->91, coding 48->64, wolfentropy 9->13, curve448 54->58 (100%), chacha20_poly1305 43->46 (100%), hash 6->7 (100%), wc_encrypt 16->19, pwdbased 14->17, signature 30->32. Additive cases in the existing tests (one new test_wc_HashTypeConvert), plus wolfentropy/random white-box drivers. Remaining are justified residuals (WOLFSSL_LOCAL wc_CryptKey, dead defensive branches, alloc/crypto-failure err-chains, platform seed sources).
349 lines
14 KiB
C
349 lines
14 KiB
C
/* test_wc_encrypt.c
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*
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* Copyright (C) 2006-2026 wolfSSL Inc.
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*
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* This file is part of wolfSSL.
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*
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* wolfSSL is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* wolfSSL is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
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*/
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#include <tests/unit.h>
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#ifdef NO_INLINE
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#include <wolfssl/wolfcrypt/misc.h>
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#else
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#define WOLFSSL_MISC_INCLUDED
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#include <wolfcrypt/src/misc.c>
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#endif
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#include <wolfssl/wolfcrypt/wc_encrypt.h>
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#include <wolfssl/wolfcrypt/asn_public.h>
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#include <wolfssl/wolfcrypt/asn.h>
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#include <wolfssl/wolfcrypt/types.h>
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#include <tests/api/api.h>
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#include <tests/api/test_wc_encrypt.h>
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/*
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* Unit test for wc_Des3_CbcEncryptWithKey and wc_Des3_CbcDecryptWithKey
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*/
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int test_wc_Des3_CbcEncryptDecryptWithKey(void)
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{
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EXPECT_DECLS;
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#ifndef NO_DES3
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word32 vectorSz, cipherSz;
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byte cipher[24];
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byte plain[24];
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byte vector[] = { /* Now is the time for all w/o trailing 0 */
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0x4e,0x6f,0x77,0x20,0x69,0x73,0x20,0x74,
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0x68,0x65,0x20,0x74,0x69,0x6d,0x65,0x20,
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0x66,0x6f,0x72,0x20,0x61,0x6c,0x6c,0x20
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};
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byte key[] = {
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0x01,0x23,0x45,0x67,0x89,0xab,0xcd,0xef,
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0xfe,0xde,0xba,0x98,0x76,0x54,0x32,0x10,
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0x89,0xab,0xcd,0xef,0x01,0x23,0x45,0x67
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};
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byte iv[] = {
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0x12,0x34,0x56,0x78,0x90,0xab,0xcd,0xef,
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0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,
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0x11,0x21,0x31,0x41,0x51,0x61,0x71,0x81
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};
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vectorSz = sizeof(byte) * 24;
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cipherSz = sizeof(byte) * 24;
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ExpectIntEQ(wc_Des3_CbcEncryptWithKey(cipher, vector, vectorSz, key, iv),
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0);
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ExpectIntEQ(wc_Des3_CbcDecryptWithKey(plain, cipher, cipherSz, key, iv), 0);
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ExpectIntEQ(XMEMCMP(plain, vector, 24), 0);
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/* pass in bad args. */
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ExpectIntEQ(wc_Des3_CbcEncryptWithKey(NULL, vector, vectorSz, key, iv),
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WC_NO_ERR_TRACE(BAD_FUNC_ARG));
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ExpectIntEQ(wc_Des3_CbcEncryptWithKey(cipher, NULL, vectorSz, key, iv),
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WC_NO_ERR_TRACE(BAD_FUNC_ARG));
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ExpectIntEQ(wc_Des3_CbcEncryptWithKey(cipher, vector, vectorSz, NULL, iv),
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WC_NO_ERR_TRACE(BAD_FUNC_ARG));
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ExpectIntEQ(wc_Des3_CbcEncryptWithKey(cipher, vector, vectorSz, key, NULL),
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0);
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ExpectIntEQ(wc_Des3_CbcDecryptWithKey(NULL, cipher, cipherSz, key, iv),
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WC_NO_ERR_TRACE(BAD_FUNC_ARG));
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ExpectIntEQ(wc_Des3_CbcDecryptWithKey(plain, NULL, cipherSz, key, iv),
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WC_NO_ERR_TRACE(BAD_FUNC_ARG));
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ExpectIntEQ(wc_Des3_CbcDecryptWithKey(plain, cipher, cipherSz, NULL, iv),
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WC_NO_ERR_TRACE(BAD_FUNC_ARG));
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ExpectIntEQ(wc_Des3_CbcDecryptWithKey(plain, cipher, cipherSz, key, NULL),
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0);
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#endif
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return EXPECT_RESULT();
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} /* END test_wc_Des3_CbcEncryptDecryptWithKey */
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/*
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* Unit test for wc_Des_CbcEncryptWithKey and wc_Des_CbcDecryptWithKey
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* (single DES, not triple-DES)
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*/
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int test_wc_Des_CbcEncryptDecryptWithKey(void)
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{
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EXPECT_DECLS;
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#ifndef NO_DES3
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/* "now is the time for all " */
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const byte vector[] = {
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0x6e,0x6f,0x77,0x20,0x69,0x73,0x20,0x74,
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0x68,0x65,0x20,0x74,0x69,0x6d,0x65,0x20,
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0x66,0x6f,0x72,0x20,0x61,0x6c,0x6c,0x20
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};
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const byte key[] = {
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0x01,0x23,0x45,0x67,0x89,0xab,0xcd,0xef
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};
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const byte iv[] = {
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0x12,0x34,0x56,0x78,0x90,0xab,0xcd,0xef
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};
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/* expected ciphertext matches wolfcrypt des_test */
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const byte verify[] = {
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0x8b,0x7c,0x52,0xb0,0x01,0x2b,0x6c,0xb8,
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0x4f,0x0f,0xeb,0xf3,0xfb,0x5f,0x86,0x73,
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0x15,0x85,0xb3,0x22,0x4b,0x86,0x2b,0x4b
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};
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byte cipher[sizeof(vector)];
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byte plain[sizeof(vector)];
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/* Encrypt */
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ExpectIntEQ(wc_Des_CbcEncryptWithKey(cipher, vector, sizeof(vector),
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key, iv), 0);
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ExpectBufEQ(cipher, verify, sizeof(verify));
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/* Decrypt */
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ExpectIntEQ(wc_Des_CbcDecryptWithKey(plain, cipher, sizeof(cipher),
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key, iv), 0);
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ExpectBufEQ(plain, vector, sizeof(vector));
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/* Bad args - encrypt */
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ExpectIntEQ(wc_Des_CbcEncryptWithKey(NULL, vector, sizeof(vector), key, iv),
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WC_NO_ERR_TRACE(BAD_FUNC_ARG));
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ExpectIntEQ(wc_Des_CbcEncryptWithKey(cipher, NULL, sizeof(vector), key, iv),
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WC_NO_ERR_TRACE(BAD_FUNC_ARG));
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ExpectIntEQ(wc_Des_CbcEncryptWithKey(cipher, vector, sizeof(vector),
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NULL, iv),
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WC_NO_ERR_TRACE(BAD_FUNC_ARG));
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/* NULL iv is allowed (uses zero IV) */
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ExpectIntEQ(wc_Des_CbcEncryptWithKey(cipher, vector, sizeof(vector),
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key, NULL), 0);
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/* Bad args - decrypt */
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ExpectIntEQ(wc_Des_CbcDecryptWithKey(NULL, cipher, sizeof(cipher), key, iv),
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WC_NO_ERR_TRACE(BAD_FUNC_ARG));
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ExpectIntEQ(wc_Des_CbcDecryptWithKey(plain, NULL, sizeof(cipher), key, iv),
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WC_NO_ERR_TRACE(BAD_FUNC_ARG));
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ExpectIntEQ(wc_Des_CbcDecryptWithKey(plain, cipher, sizeof(cipher),
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NULL, iv),
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WC_NO_ERR_TRACE(BAD_FUNC_ARG));
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/* NULL iv is allowed (uses zero IV) */
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ExpectIntEQ(wc_Des_CbcDecryptWithKey(plain, cipher, sizeof(cipher),
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key, NULL), 0);
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#endif
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return EXPECT_RESULT();
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} /* END test_wc_Des_CbcEncryptDecryptWithKey */
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/*
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* wc_AesCbcEncryptWithKey / wc_AesCbcDecryptWithKey round-trip: exercises the
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* WC_ALLOC/wc_AesInit/SetKey/CbcEncrypt ret==0 chains in wc_encrypt.c.
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*/
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int test_wc_AesCbcEncryptDecryptWithKey(void)
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{
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EXPECT_DECLS;
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#if !defined(NO_AES) && defined(HAVE_AES_CBC) && defined(HAVE_AES_DECRYPT)
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const byte key[16] = {
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0x01,0x23,0x45,0x67,0x89,0xab,0xcd,0xef,
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0xfe,0xdc,0xba,0x98,0x76,0x54,0x32,0x10
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};
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const byte iv[16] = {
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0x10,0x20,0x30,0x40,0x50,0x60,0x70,0x80,
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0x90,0xa0,0xb0,0xc0,0xd0,0xe0,0xf0,0x00
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};
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const byte plain[16] = {
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'w','o','l','f','s','s','l',' ','a','e','s','c','b','c','!','!'
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};
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byte cipher[16] = {0};
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byte decrypted[16] = {0};
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ExpectIntEQ(wc_AesCbcEncryptWithKey(cipher, plain, (word32)sizeof(plain),
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key, (word32)sizeof(key), iv), 0);
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ExpectIntEQ(wc_AesCbcDecryptWithKey(decrypted, cipher,
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(word32)sizeof(cipher),
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key, (word32)sizeof(key), iv), 0);
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ExpectBufEQ(decrypted, plain, (int)sizeof(plain));
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/* invalid key size propagates an error out of the ret==0 chain */
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ExpectIntNE(wc_AesCbcEncryptWithKey(cipher, plain, (word32)sizeof(plain),
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key, 5, iv), 0);
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/* wc_AesCbcDecryptWithKey argument-check independence pairs:
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* "out == NULL || in == NULL || key == NULL || iv == NULL" - vary one
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* operand at a time while the other three stay valid. */
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ExpectIntEQ(wc_AesCbcDecryptWithKey(NULL, cipher, (word32)sizeof(cipher),
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key, (word32)sizeof(key), iv),
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WC_NO_ERR_TRACE(BAD_FUNC_ARG));
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ExpectIntEQ(wc_AesCbcDecryptWithKey(decrypted, NULL,
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(word32)sizeof(cipher),
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key, (word32)sizeof(key), iv),
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WC_NO_ERR_TRACE(BAD_FUNC_ARG));
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ExpectIntEQ(wc_AesCbcDecryptWithKey(decrypted, cipher,
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(word32)sizeof(cipher),
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NULL, (word32)sizeof(key), iv),
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WC_NO_ERR_TRACE(BAD_FUNC_ARG));
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ExpectIntEQ(wc_AesCbcDecryptWithKey(decrypted, cipher,
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(word32)sizeof(cipher),
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key, (word32)sizeof(key), NULL),
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WC_NO_ERR_TRACE(BAD_FUNC_ARG));
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#endif
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return EXPECT_RESULT();
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} /* END test_wc_AesCbcEncryptDecryptWithKey */
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/*
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* wc_BufferKeyEncrypt / wc_BufferKeyDecrypt: argument-check decision coverage
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* (the 5- and 4-operand OR guards) plus the info->cipherType dispatch arms
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* (WC_CIPHER_DES / WC_CIPHER_DES3 / WC_CIPHER_AES_CBC).
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*/
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int test_wc_BufferKeyEncryptDecryptDecisionCoverage(void)
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{
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EXPECT_DECLS;
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#if !defined(NO_ASN) && defined(WOLFSSL_ENCRYPTED_KEYS) && \
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!defined(NO_PWDBASED) && !defined(NO_SHA)
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const byte pw[] = { 'p','a','s','s','w','o','r','d' };
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EncryptedInfo info;
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byte der[32];
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/* ---- wc_BufferKeyEncrypt argument-check independence pairs ---- */
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/* baseline: all operands valid (built per cipher below); here vary one at a
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* time while the others are valid. */
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XMEMSET(&info, 0, sizeof(info));
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info.cipherType = WC_CIPHER_AES_CBC;
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info.keySz = 16;
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info.ivSz = 16;
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XMEMSET(info.iv, 0x22, 16);
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XMEMSET(der, 0x33, sizeof(der));
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/* der == NULL */
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ExpectIntEQ(wc_BufferKeyEncrypt(&info, NULL, (word32)sizeof(der),
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pw, (int)sizeof(pw), WC_HASH_TYPE_SHA),
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WC_NO_ERR_TRACE(BAD_FUNC_ARG));
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/* password == NULL */
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ExpectIntEQ(wc_BufferKeyEncrypt(&info, der, (word32)sizeof(der),
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NULL, (int)sizeof(pw), WC_HASH_TYPE_SHA),
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WC_NO_ERR_TRACE(BAD_FUNC_ARG));
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/* info == NULL */
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ExpectIntEQ(wc_BufferKeyEncrypt(NULL, der, (word32)sizeof(der),
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pw, (int)sizeof(pw), WC_HASH_TYPE_SHA),
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WC_NO_ERR_TRACE(BAD_FUNC_ARG));
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/* info->keySz == 0 */
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info.keySz = 0;
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ExpectIntEQ(wc_BufferKeyEncrypt(&info, der, (word32)sizeof(der),
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pw, (int)sizeof(pw), WC_HASH_TYPE_SHA),
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WC_NO_ERR_TRACE(BAD_FUNC_ARG));
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info.keySz = 16;
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/* info->ivSz < PKCS5_SALT_SZ */
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info.ivSz = PKCS5_SALT_SZ - 1;
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ExpectIntEQ(wc_BufferKeyEncrypt(&info, der, (word32)sizeof(der),
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pw, (int)sizeof(pw), WC_HASH_TYPE_SHA),
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WC_NO_ERR_TRACE(BAD_FUNC_ARG));
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info.ivSz = 16;
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/* ---- wc_BufferKeyDecrypt argument-check independence pairs ---- */
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ExpectIntEQ(wc_BufferKeyDecrypt(&info, NULL, (word32)sizeof(der),
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pw, (int)sizeof(pw), WC_HASH_TYPE_SHA),
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WC_NO_ERR_TRACE(BAD_FUNC_ARG));
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ExpectIntEQ(wc_BufferKeyDecrypt(&info, der, (word32)sizeof(der),
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NULL, (int)sizeof(pw), WC_HASH_TYPE_SHA),
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WC_NO_ERR_TRACE(BAD_FUNC_ARG));
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ExpectIntEQ(wc_BufferKeyDecrypt(NULL, der, (word32)sizeof(der),
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pw, (int)sizeof(pw), WC_HASH_TYPE_SHA),
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WC_NO_ERR_TRACE(BAD_FUNC_ARG));
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info.keySz = 0;
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ExpectIntEQ(wc_BufferKeyDecrypt(&info, der, (word32)sizeof(der),
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pw, (int)sizeof(pw), WC_HASH_TYPE_SHA),
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WC_NO_ERR_TRACE(BAD_FUNC_ARG));
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info.keySz = 16;
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/* ---- cipherType dispatch: AES-CBC encrypt (16-byte block) ---- */
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#if defined(HAVE_AES_CBC)
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{
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XMEMSET(&info, 0, sizeof(info));
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info.cipherType = WC_CIPHER_AES_CBC;
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info.keySz = 16;
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info.ivSz = 16;
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XMEMSET(info.iv, 0x24, 16);
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XMEMSET(der, 0x33, 16);
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ExpectIntEQ(wc_BufferKeyEncrypt(&info, der, 16,
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pw, (int)sizeof(pw), WC_HASH_TYPE_SHA), 0);
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}
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#endif
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/* ---- cipherType dispatch: 3DES and DES encrypt (8-byte block) ---- */
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#ifndef NO_DES3
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{
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XMEMSET(&info, 0, sizeof(info));
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info.cipherType = WC_CIPHER_DES3;
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info.keySz = 24;
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info.ivSz = PKCS5_SALT_SZ;
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XMEMSET(info.iv, 0x25, PKCS5_SALT_SZ);
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XMEMSET(der, 0x33, 24);
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ExpectIntEQ(wc_BufferKeyEncrypt(&info, der, 24,
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pw, (int)sizeof(pw), WC_HASH_TYPE_SHA), 0);
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XMEMSET(&info, 0, sizeof(info));
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info.cipherType = WC_CIPHER_DES;
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info.keySz = 8;
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info.ivSz = PKCS5_SALT_SZ;
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XMEMSET(info.iv, 0x26, PKCS5_SALT_SZ);
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XMEMSET(der, 0x33, 24);
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ExpectIntEQ(wc_BufferKeyEncrypt(&info, der, 24,
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pw, (int)sizeof(pw), WC_HASH_TYPE_SHA), 0);
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}
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#endif
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/* ---- decrypt dispatch: iv is hex (Base16-decoded to the PBKDF salt) ---- */
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#if defined(HAVE_AES_CBC) && defined(HAVE_AES_DECRYPT) && defined(WOLFSSL_BASE16)
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{
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/* 16 hex chars -> 8-byte salt after Base16_Decode */
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const byte hexIv[16] = {
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'1','1','2','2','3','3','4','4',
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'5','5','6','6','7','7','8','8'
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};
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XMEMSET(&info, 0, sizeof(info));
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info.cipherType = WC_CIPHER_AES_CBC;
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info.keySz = 16;
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info.ivSz = 16;
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XMEMCPY(info.iv, hexIv, 16);
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XMEMSET(der, 0x33, 16);
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ExpectIntEQ(wc_BufferKeyDecrypt(&info, der, 16,
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pw, (int)sizeof(pw), WC_HASH_TYPE_SHA), 0);
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/* ivSz that decodes below PKCS5_SALT_SZ -> BUFFER_E */
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XMEMSET(&info, 0, sizeof(info));
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info.cipherType = WC_CIPHER_AES_CBC;
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info.keySz = 16;
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info.ivSz = 4; /* 4 hex chars -> 2-byte salt < PKCS5_SALT_SZ */
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XMEMCPY(info.iv, hexIv, 4);
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XMEMSET(der, 0x33, 16);
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ExpectIntEQ(wc_BufferKeyDecrypt(&info, der, 16,
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pw, (int)sizeof(pw), WC_HASH_TYPE_SHA),
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WC_NO_ERR_TRACE(BUFFER_E));
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}
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#endif
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#endif
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return EXPECT_RESULT();
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} /* END test_wc_BufferKeyEncryptDecryptDecisionCoverage */
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