/* * Camellia implementation * * Copyright The Mbed TLS Contributors * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later */ /* * The Camellia block cipher was designed by NTT and Mitsubishi Electric * Corporation. * * http://info.isl.ntt.co.jp/crypt/eng/camellia/dl/01espec.pdf */ #include "common.h" #if defined(MBEDTLS_CAMELLIA_C) #include "mbedtls/camellia.h" #include "mbedtls/platform_util.h" #include <string.h> #include "mbedtls/platform.h" #if !defined(MBEDTLS_CAMELLIA_ALT) static const unsigned char SIGMA_CHARS[6][8] = …; #if defined(MBEDTLS_CAMELLIA_SMALL_MEMORY) static const unsigned char FSb[256] = { 112, 130, 44, 236, 179, 39, 192, 229, 228, 133, 87, 53, 234, 12, 174, 65, 35, 239, 107, 147, 69, 25, 165, 33, 237, 14, 79, 78, 29, 101, 146, 189, 134, 184, 175, 143, 124, 235, 31, 206, 62, 48, 220, 95, 94, 197, 11, 26, 166, 225, 57, 202, 213, 71, 93, 61, 217, 1, 90, 214, 81, 86, 108, 77, 139, 13, 154, 102, 251, 204, 176, 45, 116, 18, 43, 32, 240, 177, 132, 153, 223, 76, 203, 194, 52, 126, 118, 5, 109, 183, 169, 49, 209, 23, 4, 215, 20, 88, 58, 97, 222, 27, 17, 28, 50, 15, 156, 22, 83, 24, 242, 34, 254, 68, 207, 178, 195, 181, 122, 145, 36, 8, 232, 168, 96, 252, 105, 80, 170, 208, 160, 125, 161, 137, 98, 151, 84, 91, 30, 149, 224, 255, 100, 210, 16, 196, 0, 72, 163, 247, 117, 219, 138, 3, 230, 218, 9, 63, 221, 148, 135, 92, 131, 2, 205, 74, 144, 51, 115, 103, 246, 243, 157, 127, 191, 226, 82, 155, 216, 38, 200, 55, 198, 59, 129, 150, 111, 75, 19, 190, 99, 46, 233, 121, 167, 140, 159, 110, 188, 142, 41, 245, 249, 182, 47, 253, 180, 89, 120, 152, 6, 106, 231, 70, 113, 186, 212, 37, 171, 66, 136, 162, 141, 250, 114, 7, 185, 85, 248, 238, 172, 10, 54, 73, 42, 104, 60, 56, 241, 164, 64, 40, 211, 123, 187, 201, 67, 193, 21, 227, 173, 244, 119, 199, 128, 158 }; #define SBOX1 … #define SBOX2 … #define SBOX3 … #define SBOX4 … #else /* MBEDTLS_CAMELLIA_SMALL_MEMORY */ static const unsigned char FSb[256] = …; static const unsigned char FSb2[256] = …; static const unsigned char FSb3[256] = …; static const unsigned char FSb4[256] = …; #define SBOX1(n) … #define SBOX2(n) … #define SBOX3(n) … #define SBOX4(n) … #endif /* MBEDTLS_CAMELLIA_SMALL_MEMORY */ static const unsigned char shifts[2][4][4] = …; static const signed char indexes[2][4][20] = …; static const signed char transposes[2][20] = …; /* Shift macro for 128 bit strings with rotation smaller than 32 bits (!) */ #define ROTL(DEST, SRC, SHIFT) … #define FL(XL, XR, KL, KR) … #define FLInv(YL, YR, KL, KR) … #define SHIFT_AND_PLACE(INDEX, OFFSET) … static void camellia_feistel(const uint32_t x[2], const uint32_t k[2], uint32_t z[2]) { … } void mbedtls_camellia_init(mbedtls_camellia_context *ctx) { … } void mbedtls_camellia_free(mbedtls_camellia_context *ctx) { … } /* * Camellia key schedule (encryption) */ int mbedtls_camellia_setkey_enc(mbedtls_camellia_context *ctx, const unsigned char *key, unsigned int keybits) { … } /* * Camellia key schedule (decryption) */ #if !defined(MBEDTLS_BLOCK_CIPHER_NO_DECRYPT) int mbedtls_camellia_setkey_dec(mbedtls_camellia_context *ctx, const unsigned char *key, unsigned int keybits) { … } #endif /* !MBEDTLS_BLOCK_CIPHER_NO_DECRYPT */ /* * Camellia-ECB block encryption/decryption */ int mbedtls_camellia_crypt_ecb(mbedtls_camellia_context *ctx, int mode, const unsigned char input[16], unsigned char output[16]) { … } #if defined(MBEDTLS_CIPHER_MODE_CBC) /* * Camellia-CBC buffer encryption/decryption */ int mbedtls_camellia_crypt_cbc(mbedtls_camellia_context *ctx, int mode, size_t length, unsigned char iv[16], const unsigned char *input, unsigned char *output) { … } #endif /* MBEDTLS_CIPHER_MODE_CBC */ #if defined(MBEDTLS_CIPHER_MODE_CFB) /* * Camellia-CFB128 buffer encryption/decryption */ int mbedtls_camellia_crypt_cfb128(mbedtls_camellia_context *ctx, int mode, size_t length, size_t *iv_off, unsigned char iv[16], const unsigned char *input, unsigned char *output) { … } #endif /* MBEDTLS_CIPHER_MODE_CFB */ #if defined(MBEDTLS_CIPHER_MODE_CTR) /* * Camellia-CTR buffer encryption/decryption */ int mbedtls_camellia_crypt_ctr(mbedtls_camellia_context *ctx, size_t length, size_t *nc_off, unsigned char nonce_counter[16], unsigned char stream_block[16], const unsigned char *input, unsigned char *output) { … } #endif /* MBEDTLS_CIPHER_MODE_CTR */ #endif /* !MBEDTLS_CAMELLIA_ALT */ #if defined(MBEDTLS_SELF_TEST) /* * Camellia test vectors from: * * http://info.isl.ntt.co.jp/crypt/eng/camellia/technology.html: * http://info.isl.ntt.co.jp/crypt/eng/camellia/dl/cryptrec/intermediate.txt * http://info.isl.ntt.co.jp/crypt/eng/camellia/dl/cryptrec/t_camellia.txt * (For each bitlength: Key 0, Nr 39) */ #define CAMELLIA_TESTS_ECB … static const unsigned char camellia_test_ecb_key[3][CAMELLIA_TESTS_ECB][32] = …; static const unsigned char camellia_test_ecb_plain[CAMELLIA_TESTS_ECB][16] = …; static const unsigned char camellia_test_ecb_cipher[3][CAMELLIA_TESTS_ECB][16] = …; #if defined(MBEDTLS_CIPHER_MODE_CBC) #define CAMELLIA_TESTS_CBC … static const unsigned char camellia_test_cbc_key[3][32] = …; static const unsigned char camellia_test_cbc_iv[16] = … ; static const unsigned char camellia_test_cbc_plain[CAMELLIA_TESTS_CBC][16] = …; static const unsigned char camellia_test_cbc_cipher[3][CAMELLIA_TESTS_CBC][16] = …; #endif /* MBEDTLS_CIPHER_MODE_CBC */ #if defined(MBEDTLS_CIPHER_MODE_CTR) /* * Camellia-CTR test vectors from: * * http://www.faqs.org/rfcs/rfc5528.html */ static const unsigned char camellia_test_ctr_key[3][16] = …; static const unsigned char camellia_test_ctr_nonce_counter[3][16] = …; static const unsigned char camellia_test_ctr_pt[3][48] = …; static const unsigned char camellia_test_ctr_ct[3][48] = …; static const int camellia_test_ctr_len[3] = …; #endif /* MBEDTLS_CIPHER_MODE_CTR */ /* * Checkup routine */ int mbedtls_camellia_self_test(int verbose) { … } #endif /* MBEDTLS_SELF_TEST */ #endif /* MBEDTLS_CAMELLIA_C */
Codebase Browser
godot