/* =================================================================== * * Copyright (c) 2014, Legrandin * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. * =================================================================== */ #include "pycrypto_common.h" #define F_ROUNDS 12 #define MAX_DIGEST_BYTES 64 #define MAX_KEY_BYTES 64 #define BLAKE2_WORD_SIZE 64 #define G_R1 32 #define G_R2 24 #define G_R3 16 #define G_R4 63 typedef uint64_t blake2_word; static const uint64_t iv[8] = { 0x6A09E667F3BCC908ull, 0xBB67AE8584CAA73Bull, 0x3C6EF372FE94F82Bull, 0xA54FF53A5F1D36F1ull, 0x510E527FADE682D1ull, 0x9B05688C2B3E6C1Full, 0x1F83D9ABFB41BD6Bull, 0x5BE0CD19137E2179ull }; static void byteswap(uint64_t *v) { union { uint64_t w; uint8_t b[8]; } x, y; x.w = *v; y.b[0] = x.b[7]; y.b[1] = x.b[6]; y.b[2] = x.b[5]; y.b[3] = x.b[4]; y.b[4] = x.b[3]; y.b[5] = x.b[2]; y.b[6] = x.b[1]; y.b[7] = x.b[0]; *v = y.w; } #define blake2_init blake2b_init #define blake2_copy blake2b_copy #define blake2_destroy blake2b_destroy #define blake2_digest blake2b_digest #define blake2_update blake2b_update FAKE_INIT(BLAKE2b) #include "blake2.c"