/* * QEMU Crypto XTS cipher mode * * Copyright (c) 2015-2018 Red Hat, Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, see . * * This code is originally derived from public domain / WTFPL code in * LibTomCrypt crytographic library http://libtom.org. The XTS code * was donated by Elliptic Semiconductor Inc (www.ellipticsemi.com) * to the LibTom Projects * */ #include "qemu/osdep.h" #include "crypto/init.h" #include "crypto/xts.h" #include "crypto/aes.h" typedef struct { const char *path; int keylen; unsigned char key1[32]; unsigned char key2[32]; uint64_t seqnum; unsigned long PTLEN; unsigned char PTX[512], CTX[512]; } QCryptoXTSTestData; static const QCryptoXTSTestData test_data[] = { /* #1 32 byte key, 32 byte PTX */ { "/crypto/xts/t-1-key-32-ptx-32", 32, { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, 0, 32, { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, { 0x91, 0x7c, 0xf6, 0x9e, 0xbd, 0x68, 0xb2, 0xec, 0x9b, 0x9f, 0xe9, 0xa3, 0xea, 0xdd, 0xa6, 0x92, 0xcd, 0x43, 0xd2, 0xf5, 0x95, 0x98, 0xed, 0x85, 0x8c, 0x02, 0xc2, 0x65, 0x2f, 0xbf, 0x92, 0x2e }, }, /* #2, 32 byte key, 32 byte PTX */ { "/crypto/xts/t-2-key-32-ptx-32", 32, { 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11 }, { 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22 }, 0x3333333333LL, 32, { 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44 }, { 0xc4, 0x54, 0x18, 0x5e, 0x6a, 0x16, 0x93, 0x6e, 0x39, 0x33, 0x40, 0x38, 0xac, 0xef, 0x83, 0x8b, 0xfb, 0x18, 0x6f, 0xff, 0x74, 0x80, 0xad, 0xc4, 0x28, 0x93, 0x82, 0xec, 0xd6, 0xd3, 0x94, 0xf0 }, }, /* #5 from xts.7, 32 byte key, 32 byte PTX */ { "/crypto/xts/t-5-key-32-ptx-32", 32, { 0xff, 0xfe, 0xfd, 0xfc, 0xfb, 0xfa, 0xf9, 0xf8, 0xf7, 0xf6, 0xf5, 0xf4, 0xf3, 0xf2, 0xf1, 0xf0 }, { 0xbf, 0xbe, 0xbd, 0xbc, 0xbb, 0xba, 0xb9, 0xb8, 0xb7, 0xb6, 0xb5, 0xb4, 0xb3, 0xb2, 0xb1, 0xb0 }, 0x123456789aLL, 32, { 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44 }, { 0xb0, 0x1f, 0x86, 0xf8, 0xed, 0xc1, 0x86, 0x37, 0x06, 0xfa, 0x8a, 0x42, 0x53, 0xe3, 0x4f, 0x28, 0xaf, 0x31, 0x9d, 0xe3, 0x83, 0x34, 0x87, 0x0f, 0x4d, 0xd1, 0xf9, 0x4c, 0xbe, 0x98, 0x32, 0xf1 }, }, /* #4, 32 byte key, 512 byte PTX */ { "/crypto/xts/t-4-key-32-ptx-512", 32, { 0x27, 0x18, 0x28, 0x18, 0x28, 0x45, 0x90, 0x45, 0x23, 0x53, 0x60, 0x28, 0x74, 0x71, 0x35, 0x26 }, { 0x31, 0x41, 0x59, 0x26, 0x53, 0x58, 0x97, 0x93, 0x23, 0x84, 0x62, 0x64, 0x33, 0x83, 0x27, 0x95 }, 0, 512, { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20, 0x21, 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0x32, 0x08, 0xff, 0x25, 0x28, 0x7d, 0xd3, 0x81, 0x96, 0x16, 0xe8, 0x9c, 0xc7, 0x8c, 0xf7, 0xf5, 0xe5, 0x43, 0x44, 0x5f, 0x83, 0x33, 0xd8, 0xfa, 0x7f, 0x56, 0x00, 0x00, 0x05, 0x27, 0x9f, 0xa5, 0xd8, 0xb5, 0xe4, 0xad, 0x40, 0xe7, 0x36, 0xdd, 0xb4, 0xd3, 0x54, 0x12, 0x32, 0x80, 0x63, 0xfd, 0x2a, 0xab, 0x53, 0xe5, 0xea, 0x1e, 0x0a, 0x9f, 0x33, 0x25, 0x00, 0xa5, 0xdf, 0x94, 0x87, 0xd0, 0x7a, 0x5c, 0x92, 0xcc, 0x51, 0x2c, 0x88, 0x66, 0xc7, 0xe8, 0x60, 0xce, 0x93, 0xfd, 0xf1, 0x66, 0xa2, 0x49, 0x12, 0xb4, 0x22, 0x97, 0x61, 0x46, 0xae, 0x20, 0xce, 0x84, 0x6b, 0xb7, 0xdc, 0x9b, 0xa9, 0x4a, 0x76, 0x7a, 0xae, 0xf2, 0x0c, 0x0d, 0x61, 0xad, 0x02, 0x65, 0x5e, 0xa9, 0x2d, 0xc4, 0xc4, 0xe4, 0x1a, 0x89, 0x52, 0xc6, 0x51, 0xd3, 0x31, 0x74, 0xbe, 0x51, 0xa1, 0x0c, 0x42, 0x11, 0x10, 0xe6, 0xd8, 0x15, 0x88, 0xed, 0xe8, 0x21, 0x03, 0xa2, 0x52, 0xd8, 0xa7, 0x50, 0xe8, 0x76, 0x8d, 0xef, 0xff, 0xed, 0x91, 0x22, 0x81, 0x0a, 0xae, 0xb9, 0x9f, 0x91, 0x72, 0xaf, 0x82, 0xb6, 0x04, 0xdc, 0x4b, 0x8e, 0x51, 0xbc, 0xb0, 0x82, 0x35, 0xa6, 0xf4, 0x34, 0x13, 0x32, 0xe4, 0xca, 0x60, 0x48, 0x2a, 0x4b, 0xa1, 0xa0, 0x3b, 0x3e, 0x65, 0x00, 0x8f, 0xc5, 0xda, 0x76, 0xb7, 0x0b, 0xf1, 0x69, 0x0d, 0xb4, 0xea, 0xe2, 0x9c, 0x5f, 0x1b, 0xad, 0xd0, 0x3c, 0x5c, 0xcf, 0x2a, 0x55, 0xd7, 0x05, 0xdd, 0xcd, 0x86, 0xd4, 0x49, 0x51, 0x1c, 0xeb, 0x7e, 0xc3, 0x0b, 0xf1, 0x2b, 0x1f, 0xa3, 0x5b, 0x91, 0x3f, 0x9f, 0x74, 0x7a, 0x8a, 0xfd, 0x1b, 0x13, 0x0e, 0x94, 0xbf, 0xf9, 0x4e, 0xff, 0xd0, 0x1a, 0x91, 0x73, 0x5c, 0xa1, 0x72, 0x6a, 0xcd, 0x0b, 0x19, 0x7c, 0x4e, 0x5b, 0x03, 0x39, 0x36, 0x97, 0xe1, 0x26, 0x82, 0x6f, 0xb6, 0xbb, 0xde, 0x8e, 0xcc, 0x1e, 0x08, 0x29, 0x85, 0x16, 0xe2, 0xc9, 0xed, 0x03, 0xff, 0x3c, 0x1b, 0x78, 0x60, 0xf6, 0xde, 0x76, 0xd4, 0xce, 0xcd, 0x94, 0xc8, 0x11, 0x98, 0x55, 0xef, 0x52, 0x97, 0xca, 0x67, 0xe9, 0xf3, 0xe7, 0xff, 0x72, 0xb1, 0xe9, 0x97, 0x85, 0xca, 0x0a, 0x7e, 0x77, 0x20, 0xc5, 0xb3, 0x6d, 0xc6, 0xd7, 0x2c, 0xac, 0x95, 0x74, 0xc8, 0xcb, 0xbc, 0x2f, 0x80, 0x1e, 0x23, 0xe5, 0x6f, 0xd3, 0x44, 0xb0, 0x7f, 0x22, 0x15, 0x4b, 0xeb, 0xa0, 0xf0, 0x8c, 0xe8, 0x89, 0x1e, 0x64, 0x3e, 0xd9, 0x95, 0xc9, 0x4d, 0x9a, 0x69, 0xc9, 0xf1, 0xb5, 0xf4, 0x99, 0x02, 0x7a, 0x78, 0x57, 0x2a, 0xee, 0xbd, 0x74, 0xd2, 0x0c, 0xc3, 0x98, 0x81, 0xc2, 0x13, 0xee, 0x77, 0x0b, 0x10, 0x10, 0xe4, 0xbe, 0xa7, 0x18, 0x84, 0x69, 0x77, 0xae, 0x11, 0x9f, 0x7a, 0x02, 0x3a, 0xb5, 0x8c, 0xca, 0x0a, 0xd7, 0x52, 0xaf, 0xe6, 0x56, 0xbb, 0x3c, 0x17, 0x25, 0x6a, 0x9f, 0x6e, 0x9b, 0xf1, 0x9f, 0xdd, 0x5a, 0x38, 0xfc, 0x82, 0xbb, 0xe8, 0x72, 0xc5, 0x53, 0x9e, 0xdb, 0x60, 0x9e, 0xf4, 0xf7, 0x9c, 0x20, 0x3e, 0xbb, 0x14, 0x0f, 0x2e, 0x58, 0x3c, 0xb2, 0xad, 0x15, 0xb4, 0xaa, 0x5b, 0x65, 0x50, 0x16, 0xa8, 0x44, 0x92, 0x77, 0xdb, 0xd4, 0x77, 0xef, 0x2c, 0x8d, 0x6c, 0x01, 0x7d, 0xb7, 0x38, 0xb1, 0x8d, 0xeb, 0x4a, 0x42, 0x7d, 0x19, 0x23, 0xce, 0x3f, 0xf2, 0x62, 0x73, 0x57, 0x79, 0xa4, 0x18, 0xf2, 0x0a, 0x28, 0x2d, 0xf9, 0x20, 0x14, 0x7b, 0xea, 0xbe, 0x42, 0x1e, 0xe5, 0x31, 0x9d, 0x05, 0x68, } }, /* #7, 32 byte key, 17 byte PTX */ { "/crypto/xts/t-7-key-32-ptx-17", 32, { 0xff, 0xfe, 0xfd, 0xfc, 0xfb, 0xfa, 0xf9, 0xf8, 0xf7, 0xf6, 0xf5, 0xf4, 0xf3, 0xf2, 0xf1, 0xf0 }, { 0xbf, 0xbe, 0xbd, 0xbc, 0xbb, 0xba, 0xb9, 0xb8, 0xb7, 0xb6, 0xb5, 0xb4, 0xb3, 0xb2, 0xb1, 0xb0 }, 0x123456789aLL, 17, { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10 }, { 0x6c, 0x16, 0x25, 0xdb, 0x46, 0x71, 0x52, 0x2d, 0x3d, 0x75, 0x99, 0x60, 0x1d, 0xe7, 0xca, 0x09, 0xed }, }, /* #15, 32 byte key, 25 byte PTX */ { "/crypto/xts/t-15-key-32-ptx-25", 32, { 0xff, 0xfe, 0xfd, 0xfc, 0xfb, 0xfa, 0xf9, 0xf8, 0xf7, 0xf6, 0xf5, 0xf4, 0xf3, 0xf2, 0xf1, 0xf0 }, { 0xbf, 0xbe, 0xbd, 0xbc, 0xbb, 0xba, 0xb9, 0xb8, 0xb7, 0xb6, 0xb5, 0xb4, 0xb3, 0xb2, 0xb1, 0xb0 }, 0x123456789aLL, 25, { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18 }, { 0x8f, 0x4d, 0xcb, 0xad, 0x55, 0x55, 0x8d, 0x7b, 0x4e, 0x01, 0xd9, 0x37, 0x9c, 0xd4, 0xea, 0x22, 0xed, 0xbf, 0x9d, 0xac, 0xe4, 0x5d, 0x6f, 0x6a, 0x73 }, }, /* #21, 32 byte key, 31 byte PTX */ { "/crypto/xts/t-21-key-32-ptx-31", 32, { 0xff, 0xfe, 0xfd, 0xfc, 0xfb, 0xfa, 0xf9, 0xf8, 0xf7, 0xf6, 0xf5, 0xf4, 0xf3, 0xf2, 0xf1, 0xf0 }, { 0xbf, 0xbe, 0xbd, 0xbc, 0xbb, 0xba, 0xb9, 0xb8, 0xb7, 0xb6, 0xb5, 0xb4, 0xb3, 0xb2, 0xb1, 0xb0 }, 0x123456789aLL, 31, { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e }, { 0xd0, 0x5b, 0xc0, 0x90, 0xa8, 0xe0, 0x4f, 0x1b, 0x3d, 0x3e, 0xcd, 0xd5, 0xba, 0xec, 0x0f, 0xd4, 0xed, 0xbf, 0x9d, 0xac, 0xe4, 0x5d, 0x6f, 0x6a, 0x73, 0x06, 0xe6, 0x4b, 0xe5, 0xdd, 0x82 }, }, }; #define STORE64L(x, y) \ do { \ (y)[7] = (unsigned char)(((x) >> 56) & 255); \ (y)[6] = (unsigned char)(((x) >> 48) & 255); \ (y)[5] = (unsigned char)(((x) >> 40) & 255); \ (y)[4] = (unsigned char)(((x) >> 32) & 255); \ (y)[3] = (unsigned char)(((x) >> 24) & 255); \ (y)[2] = (unsigned char)(((x) >> 16) & 255); \ (y)[1] = (unsigned char)(((x) >> 8) & 255); \ (y)[0] = (unsigned char)((x) & 255); \ } while (0) struct TestAES { AES_KEY enc; AES_KEY dec; }; static void test_xts_aes_encrypt(const void *ctx, size_t length, uint8_t *dst, const uint8_t *src) { const struct TestAES *aesctx = ctx; AES_encrypt(src, dst, &aesctx->enc); } static void test_xts_aes_decrypt(const void *ctx, size_t length, uint8_t *dst, const uint8_t *src) { const struct TestAES *aesctx = ctx; AES_decrypt(src, dst, &aesctx->dec); } static void test_xts(const void *opaque) { const QCryptoXTSTestData *data = opaque; uint8_t out[512], Torg[16], T[16]; uint64_t seq; struct TestAES aesdata; struct TestAES aestweak; AES_set_encrypt_key(data->key1, data->keylen / 2 * 8, &aesdata.enc); AES_set_decrypt_key(data->key1, data->keylen / 2 * 8, &aesdata.dec); AES_set_encrypt_key(data->key2, data->keylen / 2 * 8, &aestweak.enc); AES_set_decrypt_key(data->key2, data->keylen / 2 * 8, &aestweak.dec); seq = data->seqnum; STORE64L(seq, Torg); memset(Torg + 8, 0, 8); memcpy(T, Torg, sizeof(T)); xts_encrypt(&aesdata, &aestweak, test_xts_aes_encrypt, test_xts_aes_decrypt, T, data->PTLEN, out, data->PTX); g_assert(memcmp(out, data->CTX, data->PTLEN) == 0); memcpy(T, Torg, sizeof(T)); xts_decrypt(&aesdata, &aestweak, test_xts_aes_encrypt, test_xts_aes_decrypt, T, data->PTLEN, out, data->CTX); g_assert(memcmp(out, data->PTX, data->PTLEN) == 0); } static void test_xts_split(const void *opaque) { const QCryptoXTSTestData *data = opaque; uint8_t out[512], Torg[16], T[16]; uint64_t seq; unsigned long len = data->PTLEN / 2; struct TestAES aesdata; struct TestAES aestweak; AES_set_encrypt_key(data->key1, data->keylen / 2 * 8, &aesdata.enc); AES_set_decrypt_key(data->key1, data->keylen / 2 * 8, &aesdata.dec); AES_set_encrypt_key(data->key2, data->keylen / 2 * 8, &aestweak.enc); AES_set_decrypt_key(data->key2, data->keylen / 2 * 8, &aestweak.dec); seq = data->seqnum; STORE64L(seq, Torg); memset(Torg + 8, 0, 8); memcpy(T, Torg, sizeof(T)); xts_encrypt(&aesdata, &aestweak, test_xts_aes_encrypt, test_xts_aes_decrypt, T, len, out, data->PTX); xts_encrypt(&aesdata, &aestweak, test_xts_aes_encrypt, test_xts_aes_decrypt, T, len, &out[len], &data->PTX[len]); g_assert(memcmp(out, data->CTX, data->PTLEN) == 0); memcpy(T, Torg, sizeof(T)); xts_decrypt(&aesdata, &aestweak, test_xts_aes_encrypt, test_xts_aes_decrypt, T, len, out, data->CTX); xts_decrypt(&aesdata, &aestweak, test_xts_aes_encrypt, test_xts_aes_decrypt, T, len, &out[len], &data->CTX[len]); g_assert(memcmp(out, data->PTX, data->PTLEN) == 0); } static void test_xts_unaligned(const void *opaque) { #define BAD_ALIGN 3 const QCryptoXTSTestData *data = opaque; uint8_t in[512 + BAD_ALIGN], out[512 + BAD_ALIGN]; uint8_t Torg[16], T[16 + BAD_ALIGN]; uint64_t seq; struct TestAES aesdata; struct TestAES aestweak; AES_set_encrypt_key(data->key1, data->keylen / 2 * 8, &aesdata.enc); AES_set_decrypt_key(data->key1, data->keylen / 2 * 8, &aesdata.dec); AES_set_encrypt_key(data->key2, data->keylen / 2 * 8, &aestweak.enc); AES_set_decrypt_key(data->key2, data->keylen / 2 * 8, &aestweak.dec); seq = data->seqnum; STORE64L(seq, Torg); memset(Torg + 8, 0, 8); /* IV not aligned */ memcpy(T + BAD_ALIGN, Torg, 16); memcpy(in, data->PTX, data->PTLEN); xts_encrypt(&aesdata, &aestweak, test_xts_aes_encrypt, test_xts_aes_decrypt, T + BAD_ALIGN, data->PTLEN, out, in); g_assert(memcmp(out, data->CTX, data->PTLEN) == 0); /* plain text not aligned */ memcpy(T, Torg, 16); memcpy(in + BAD_ALIGN, data->PTX, data->PTLEN); xts_encrypt(&aesdata, &aestweak, test_xts_aes_encrypt, test_xts_aes_decrypt, T, data->PTLEN, out, in + BAD_ALIGN); g_assert(memcmp(out, data->CTX, data->PTLEN) == 0); /* cipher text not aligned */ memcpy(T, Torg, 16); memcpy(in, data->PTX, data->PTLEN); xts_encrypt(&aesdata, &aestweak, test_xts_aes_encrypt, test_xts_aes_decrypt, T, data->PTLEN, out + BAD_ALIGN, in); g_assert(memcmp(out + BAD_ALIGN, data->CTX, data->PTLEN) == 0); /* IV not aligned */ memcpy(T + BAD_ALIGN, Torg, 16); memcpy(in, data->CTX, data->PTLEN); xts_decrypt(&aesdata, &aestweak, test_xts_aes_encrypt, test_xts_aes_decrypt, T + BAD_ALIGN, data->PTLEN, out, in); g_assert(memcmp(out, data->PTX, data->PTLEN) == 0); /* cipher text not aligned */ memcpy(T, Torg, 16); memcpy(in + BAD_ALIGN, data->CTX, data->PTLEN); xts_decrypt(&aesdata, &aestweak, test_xts_aes_encrypt, test_xts_aes_decrypt, T, data->PTLEN, out, in + BAD_ALIGN); g_assert(memcmp(out, data->PTX, data->PTLEN) == 0); /* plain text not aligned */ memcpy(T, Torg, 16); memcpy(in, data->CTX, data->PTLEN); xts_decrypt(&aesdata, &aestweak, test_xts_aes_encrypt, test_xts_aes_decrypt, T, data->PTLEN, out + BAD_ALIGN, in); g_assert(memcmp(out + BAD_ALIGN, data->PTX, data->PTLEN) == 0); } int main(int argc, char **argv) { size_t i; g_test_init(&argc, &argv, NULL); g_assert(qcrypto_init(NULL) == 0); for (i = 0; i < G_N_ELEMENTS(test_data); i++) { gchar *path = g_strdup_printf("%s/basic", test_data[i].path); g_test_add_data_func(path, &test_data[i], test_xts); g_free(path); /* skip the cases where the length is smaller than 2*blocklen * or the length is not a multiple of 32 */ if ((test_data[i].PTLEN >= 32) && !(test_data[i].PTLEN % 32)) { path = g_strdup_printf("%s/split", test_data[i].path); g_test_add_data_func(path, &test_data[i], test_xts_split); g_free(path); } path = g_strdup_printf("%s/unaligned", test_data[i].path); g_test_add_data_func(path, &test_data[i], test_xts_unaligned); g_free(path); } return g_test_run(); }