diff options
Diffstat (limited to 'node/SHA512.cpp')
-rw-r--r-- | node/SHA512.cpp | 593 |
1 files changed, 304 insertions, 289 deletions
diff --git a/node/SHA512.cpp b/node/SHA512.cpp index 76737d37..d3c938af 100644 --- a/node/SHA512.cpp +++ b/node/SHA512.cpp @@ -1,20 +1,11 @@ +// Code taken from NaCl by D. J. Bernstein and others +// Public domain + /* - * ZeroTier One - Network Virtualization Everywhere - * Copyright (C) 2011-2016 ZeroTier, Inc. https://www.zerotier.com/ - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * This program 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 General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - */ +20080913 +D. J. Bernstein +Public domain. +*/ #include <stdint.h> #include <stdlib.h> @@ -23,19 +14,37 @@ #include "SHA512.hpp" #include "Utils.hpp" +#ifdef __APPLE__ +#include <CommonCrypto/CommonDigest.h> +#define ZT_HAVE_NATIVE_SHA512 namespace ZeroTier { +void SHA512::hash(void *digest,const void *data,unsigned int len) +{ + CC_SHA512_CTX ctx; + CC_SHA512_Init(&ctx); + CC_SHA512_Update(&ctx,data,len); + CC_SHA512_Final(reinterpret_cast<unsigned char *>(digest),&ctx); +} +} +#endif -////////////////////////////////////////////////////////////////////////////// -////////////////////////////////////////////////////////////////////////////// +#ifdef ZT_USE_LIBCRYPTO +#include <openssl/sha.h> +#define ZT_HAVE_NATIVE_SHA512 +namespace ZeroTier { +void SHA512::hash(void *digest,const void *data,unsigned int len) +{ + SHA512_CTX ctx; + SHA512_Init(&ctx); + SHA512_Update(&ctx,data,len); + SHA512_Final(reinterpret_cast<unsigned char *>(digest),&ctx); +} +} +#endif -// Code taken from NaCl by D. J. Bernstein and others -// Public domain +#ifndef ZT_HAVE_NATIVE_SHA512 -/* -20080913 -D. J. Bernstein -Public domain. -*/ +namespace ZeroTier { #define uint64 uint64_t @@ -43,28 +52,28 @@ Public domain. static uint64 load_bigendian(const unsigned char *x) { - return - (uint64) (x[7]) \ - | (((uint64) (x[6])) << 8) \ - | (((uint64) (x[5])) << 16) \ - | (((uint64) (x[4])) << 24) \ - | (((uint64) (x[3])) << 32) \ - | (((uint64) (x[2])) << 40) \ - | (((uint64) (x[1])) << 48) \ - | (((uint64) (x[0])) << 56) - ; + return + (uint64) (x[7]) \ + | (((uint64) (x[6])) << 8) \ + | (((uint64) (x[5])) << 16) \ + | (((uint64) (x[4])) << 24) \ + | (((uint64) (x[3])) << 32) \ + | (((uint64) (x[2])) << 40) \ + | (((uint64) (x[1])) << 48) \ + | (((uint64) (x[0])) << 56) + ; } static void store_bigendian(unsigned char *x,uint64 u) { - x[7] = u; u >>= 8; - x[6] = u; u >>= 8; - x[5] = u; u >>= 8; - x[4] = u; u >>= 8; - x[3] = u; u >>= 8; - x[2] = u; u >>= 8; - x[1] = u; u >>= 8; - x[0] = u; + x[7] = u; u >>= 8; + x[6] = u; u >>= 8; + x[5] = u; u >>= 8; + x[4] = u; u >>= 8; + x[3] = u; u >>= 8; + x[2] = u; u >>= 8; + x[1] = u; u >>= 8; + x[0] = u; } #else // !ZT_NO_TYPE_PUNNING @@ -87,266 +96,272 @@ static void store_bigendian(unsigned char *x,uint64 u) #define M(w0,w14,w9,w1) w0 = sigma1(w14) + w9 + sigma0(w1) + w0; #define EXPAND \ - M(w0 ,w14,w9 ,w1 ) \ - M(w1 ,w15,w10,w2 ) \ - M(w2 ,w0 ,w11,w3 ) \ - M(w3 ,w1 ,w12,w4 ) \ - M(w4 ,w2 ,w13,w5 ) \ - M(w5 ,w3 ,w14,w6 ) \ - M(w6 ,w4 ,w15,w7 ) \ - M(w7 ,w5 ,w0 ,w8 ) \ - M(w8 ,w6 ,w1 ,w9 ) \ - M(w9 ,w7 ,w2 ,w10) \ - M(w10,w8 ,w3 ,w11) \ - M(w11,w9 ,w4 ,w12) \ - M(w12,w10,w5 ,w13) \ - M(w13,w11,w6 ,w14) \ - M(w14,w12,w7 ,w15) \ - M(w15,w13,w8 ,w0 ) + M(w0 ,w14,w9 ,w1 ) \ + M(w1 ,w15,w10,w2 ) \ + M(w2 ,w0 ,w11,w3 ) \ + M(w3 ,w1 ,w12,w4 ) \ + M(w4 ,w2 ,w13,w5 ) \ + M(w5 ,w3 ,w14,w6 ) \ + M(w6 ,w4 ,w15,w7 ) \ + M(w7 ,w5 ,w0 ,w8 ) \ + M(w8 ,w6 ,w1 ,w9 ) \ + M(w9 ,w7 ,w2 ,w10) \ + M(w10,w8 ,w3 ,w11) \ + M(w11,w9 ,w4 ,w12) \ + M(w12,w10,w5 ,w13) \ + M(w13,w11,w6 ,w14) \ + M(w14,w12,w7 ,w15) \ + M(w15,w13,w8 ,w0 ) #define F(w,k) \ - T1 = h + Sigma1(e) + Ch(e,f,g) + k + w; \ - T2 = Sigma0(a) + Maj(a,b,c); \ - h = g; \ - g = f; \ - f = e; \ - e = d + T1; \ - d = c; \ - c = b; \ - b = a; \ - a = T1 + T2; + T1 = h + Sigma1(e) + Ch(e,f,g) + k + w; \ + T2 = Sigma0(a) + Maj(a,b,c); \ + h = g; \ + g = f; \ + f = e; \ + e = d + T1; \ + d = c; \ + c = b; \ + b = a; \ + a = T1 + T2; static inline int crypto_hashblocks(unsigned char *statebytes,const unsigned char *in,unsigned long long inlen) { - uint64 state[8]; - uint64 a; - uint64 b; - uint64 c; - uint64 d; - uint64 e; - uint64 f; - uint64 g; - uint64 h; - uint64 T1; - uint64 T2; - - a = load_bigendian(statebytes + 0); state[0] = a; - b = load_bigendian(statebytes + 8); state[1] = b; - c = load_bigendian(statebytes + 16); state[2] = c; - d = load_bigendian(statebytes + 24); state[3] = d; - e = load_bigendian(statebytes + 32); state[4] = e; - f = load_bigendian(statebytes + 40); state[5] = f; - g = load_bigendian(statebytes + 48); state[6] = g; - h = load_bigendian(statebytes + 56); state[7] = h; - - while (inlen >= 128) { - uint64 w0 = load_bigendian(in + 0); - uint64 w1 = load_bigendian(in + 8); - uint64 w2 = load_bigendian(in + 16); - uint64 w3 = load_bigendian(in + 24); - uint64 w4 = load_bigendian(in + 32); - uint64 w5 = load_bigendian(in + 40); - uint64 w6 = load_bigendian(in + 48); - uint64 w7 = load_bigendian(in + 56); - uint64 w8 = load_bigendian(in + 64); - uint64 w9 = load_bigendian(in + 72); - uint64 w10 = load_bigendian(in + 80); - uint64 w11 = load_bigendian(in + 88); - uint64 w12 = load_bigendian(in + 96); - uint64 w13 = load_bigendian(in + 104); - uint64 w14 = load_bigendian(in + 112); - uint64 w15 = load_bigendian(in + 120); - - F(w0 ,0x428a2f98d728ae22ULL) - F(w1 ,0x7137449123ef65cdULL) - F(w2 ,0xb5c0fbcfec4d3b2fULL) - F(w3 ,0xe9b5dba58189dbbcULL) - F(w4 ,0x3956c25bf348b538ULL) - F(w5 ,0x59f111f1b605d019ULL) - F(w6 ,0x923f82a4af194f9bULL) - F(w7 ,0xab1c5ed5da6d8118ULL) - F(w8 ,0xd807aa98a3030242ULL) - F(w9 ,0x12835b0145706fbeULL) - F(w10,0x243185be4ee4b28cULL) - F(w11,0x550c7dc3d5ffb4e2ULL) - F(w12,0x72be5d74f27b896fULL) - F(w13,0x80deb1fe3b1696b1ULL) - F(w14,0x9bdc06a725c71235ULL) - F(w15,0xc19bf174cf692694ULL) - - EXPAND - - F(w0 ,0xe49b69c19ef14ad2ULL) - F(w1 ,0xefbe4786384f25e3ULL) - F(w2 ,0x0fc19dc68b8cd5b5ULL) - F(w3 ,0x240ca1cc77ac9c65ULL) - F(w4 ,0x2de92c6f592b0275ULL) - F(w5 ,0x4a7484aa6ea6e483ULL) - F(w6 ,0x5cb0a9dcbd41fbd4ULL) - F(w7 ,0x76f988da831153b5ULL) - F(w8 ,0x983e5152ee66dfabULL) - F(w9 ,0xa831c66d2db43210ULL) - F(w10,0xb00327c898fb213fULL) - F(w11,0xbf597fc7beef0ee4ULL) - F(w12,0xc6e00bf33da88fc2ULL) - F(w13,0xd5a79147930aa725ULL) - F(w14,0x06ca6351e003826fULL) - F(w15,0x142929670a0e6e70ULL) - - EXPAND - - F(w0 ,0x27b70a8546d22ffcULL) - F(w1 ,0x2e1b21385c26c926ULL) - F(w2 ,0x4d2c6dfc5ac42aedULL) - F(w3 ,0x53380d139d95b3dfULL) - F(w4 ,0x650a73548baf63deULL) - F(w5 ,0x766a0abb3c77b2a8ULL) - F(w6 ,0x81c2c92e47edaee6ULL) - F(w7 ,0x92722c851482353bULL) - F(w8 ,0xa2bfe8a14cf10364ULL) - F(w9 ,0xa81a664bbc423001ULL) - F(w10,0xc24b8b70d0f89791ULL) - F(w11,0xc76c51a30654be30ULL) - F(w12,0xd192e819d6ef5218ULL) - F(w13,0xd69906245565a910ULL) - F(w14,0xf40e35855771202aULL) - F(w15,0x106aa07032bbd1b8ULL) - - EXPAND - - F(w0 ,0x19a4c116b8d2d0c8ULL) - F(w1 ,0x1e376c085141ab53ULL) - F(w2 ,0x2748774cdf8eeb99ULL) - F(w3 ,0x34b0bcb5e19b48a8ULL) - F(w4 ,0x391c0cb3c5c95a63ULL) - F(w5 ,0x4ed8aa4ae3418acbULL) - F(w6 ,0x5b9cca4f7763e373ULL) - F(w7 ,0x682e6ff3d6b2b8a3ULL) - F(w8 ,0x748f82ee5defb2fcULL) - F(w9 ,0x78a5636f43172f60ULL) - F(w10,0x84c87814a1f0ab72ULL) - F(w11,0x8cc702081a6439ecULL) - F(w12,0x90befffa23631e28ULL) - F(w13,0xa4506cebde82bde9ULL) - F(w14,0xbef9a3f7b2c67915ULL) - F(w15,0xc67178f2e372532bULL) - - EXPAND - - F(w0 ,0xca273eceea26619cULL) - F(w1 ,0xd186b8c721c0c207ULL) - F(w2 ,0xeada7dd6cde0eb1eULL) - F(w3 ,0xf57d4f7fee6ed178ULL) - F(w4 ,0x06f067aa72176fbaULL) - F(w5 ,0x0a637dc5a2c898a6ULL) - F(w6 ,0x113f9804bef90daeULL) - F(w7 ,0x1b710b35131c471bULL) - F(w8 ,0x28db77f523047d84ULL) - F(w9 ,0x32caab7b40c72493ULL) - F(w10,0x3c9ebe0a15c9bebcULL) - F(w11,0x431d67c49c100d4cULL) - F(w12,0x4cc5d4becb3e42b6ULL) - F(w13,0x597f299cfc657e2aULL) - F(w14,0x5fcb6fab3ad6faecULL) - F(w15,0x6c44198c4a475817ULL) - - a += state[0]; - b += state[1]; - c += state[2]; - d += state[3]; - e += state[4]; - f += state[5]; - g += state[6]; - h += state[7]; - - state[0] = a; - state[1] = b; - state[2] = c; - state[3] = d; - state[4] = e; - state[5] = f; - state[6] = g; - state[7] = h; - - in += 128; - inlen -= 128; - } - - store_bigendian(statebytes + 0,state[0]); - store_bigendian(statebytes + 8,state[1]); - store_bigendian(statebytes + 16,state[2]); - store_bigendian(statebytes + 24,state[3]); - store_bigendian(statebytes + 32,state[4]); - store_bigendian(statebytes + 40,state[5]); - store_bigendian(statebytes + 48,state[6]); - store_bigendian(statebytes + 56,state[7]); - - return 0; + uint64 state[8]; + uint64 a; + uint64 b; + uint64 c; + uint64 d; + uint64 e; + uint64 f; + uint64 g; + uint64 h; + uint64 T1; + uint64 T2; + + a = load_bigendian(statebytes + 0); state[0] = a; + b = load_bigendian(statebytes + 8); state[1] = b; + c = load_bigendian(statebytes + 16); state[2] = c; + d = load_bigendian(statebytes + 24); state[3] = d; + e = load_bigendian(statebytes + 32); state[4] = e; + f = load_bigendian(statebytes + 40); state[5] = f; + g = load_bigendian(statebytes + 48); state[6] = g; + h = load_bigendian(statebytes + 56); state[7] = h; + + while (inlen >= 128) { + uint64 w0 = load_bigendian(in + 0); + uint64 w1 = load_bigendian(in + 8); + uint64 w2 = load_bigendian(in + 16); + uint64 w3 = load_bigendian(in + 24); + uint64 w4 = load_bigendian(in + 32); + uint64 w5 = load_bigendian(in + 40); + uint64 w6 = load_bigendian(in + 48); + uint64 w7 = load_bigendian(in + 56); + uint64 w8 = load_bigendian(in + 64); + uint64 w9 = load_bigendian(in + 72); + uint64 w10 = load_bigendian(in + 80); + uint64 w11 = load_bigendian(in + 88); + uint64 w12 = load_bigendian(in + 96); + uint64 w13 = load_bigendian(in + 104); + uint64 w14 = load_bigendian(in + 112); + uint64 w15 = load_bigendian(in + 120); + + F(w0 ,0x428a2f98d728ae22ULL) + F(w1 ,0x7137449123ef65cdULL) + F(w2 ,0xb5c0fbcfec4d3b2fULL) + F(w3 ,0xe9b5dba58189dbbcULL) + F(w4 ,0x3956c25bf348b538ULL) + F(w5 ,0x59f111f1b605d019ULL) + F(w6 ,0x923f82a4af194f9bULL) + F(w7 ,0xab1c5ed5da6d8118ULL) + F(w8 ,0xd807aa98a3030242ULL) + F(w9 ,0x12835b0145706fbeULL) + F(w10,0x243185be4ee4b28cULL) + F(w11,0x550c7dc3d5ffb4e2ULL) + F(w12,0x72be5d74f27b896fULL) + F(w13,0x80deb1fe3b1696b1ULL) + F(w14,0x9bdc06a725c71235ULL) + F(w15,0xc19bf174cf692694ULL) + + EXPAND + + F(w0 ,0xe49b69c19ef14ad2ULL) + F(w1 ,0xefbe4786384f25e3ULL) + F(w2 ,0x0fc19dc68b8cd5b5ULL) + F(w3 ,0x240ca1cc77ac9c65ULL) + F(w4 ,0x2de92c6f592b0275ULL) + F(w5 ,0x4a7484aa6ea6e483ULL) + F(w6 ,0x5cb0a9dcbd41fbd4ULL) + F(w7 ,0x76f988da831153b5ULL) + F(w8 ,0x983e5152ee66dfabULL) + F(w9 ,0xa831c66d2db43210ULL) + F(w10,0xb00327c898fb213fULL) + F(w11,0xbf597fc7beef0ee4ULL) + F(w12,0xc6e00bf33da88fc2ULL) + F(w13,0xd5a79147930aa725ULL) + F(w14,0x06ca6351e003826fULL) + F(w15,0x142929670a0e6e70ULL) + + EXPAND + + F(w0 ,0x27b70a8546d22ffcULL) + F(w1 ,0x2e1b21385c26c926ULL) + F(w2 ,0x4d2c6dfc5ac42aedULL) + F(w3 ,0x53380d139d95b3dfULL) + F(w4 ,0x650a73548baf63deULL) + F(w5 ,0x766a0abb3c77b2a8ULL) + F(w6 ,0x81c2c92e47edaee6ULL) + F(w7 ,0x92722c851482353bULL) + F(w8 ,0xa2bfe8a14cf10364ULL) + F(w9 ,0xa81a664bbc423001ULL) + F(w10,0xc24b8b70d0f89791ULL) + F(w11,0xc76c51a30654be30ULL) + F(w12,0xd192e819d6ef5218ULL) + F(w13,0xd69906245565a910ULL) + F(w14,0xf40e35855771202aULL) + F(w15,0x106aa07032bbd1b8ULL) + + EXPAND + + F(w0 ,0x19a4c116b8d2d0c8ULL) + F(w1 ,0x1e376c085141ab53ULL) + F(w2 ,0x2748774cdf8eeb99ULL) + F(w3 ,0x34b0bcb5e19b48a8ULL) + F(w4 ,0x391c0cb3c5c95a63ULL) + F(w5 ,0x4ed8aa4ae3418acbULL) + F(w6 ,0x5b9cca4f7763e373ULL) + F(w7 ,0x682e6ff3d6b2b8a3ULL) + F(w8 ,0x748f82ee5defb2fcULL) + F(w9 ,0x78a5636f43172f60ULL) + F(w10,0x84c87814a1f0ab72ULL) + F(w11,0x8cc702081a6439ecULL) + F(w12,0x90befffa23631e28ULL) + F(w13,0xa4506cebde82bde9ULL) + F(w14,0xbef9a3f7b2c67915ULL) + F(w15,0xc67178f2e372532bULL) + + EXPAND + + F(w0 ,0xca273eceea26619cULL) + F(w1 ,0xd186b8c721c0c207ULL) + F(w2 ,0xeada7dd6cde0eb1eULL) + F(w3 ,0xf57d4f7fee6ed178ULL) + F(w4 ,0x06f067aa72176fbaULL) + F(w5 ,0x0a637dc5a2c898a6ULL) + F(w6 ,0x113f9804bef90daeULL) + F(w7 ,0x1b710b35131c471bULL) + F(w8 ,0x28db77f523047d84ULL) + F(w9 ,0x32caab7b40c72493ULL) + F(w10,0x3c9ebe0a15c9bebcULL) + F(w11,0x431d67c49c100d4cULL) + F(w12,0x4cc5d4becb3e42b6ULL) + F(w13,0x597f299cfc657e2aULL) + F(w14,0x5fcb6fab3ad6faecULL) + F(w15,0x6c44198c4a475817ULL) + + a += state[0]; + b += state[1]; + c += state[2]; + d += state[3]; + e += state[4]; + f += state[5]; + g += state[6]; + h += state[7]; + + state[0] = a; + state[1] = b; + state[2] = c; + state[3] = d; + state[4] = e; + state[5] = f; + state[6] = g; + state[7] = h; + + in += 128; + inlen -= 128; + } + + store_bigendian(statebytes + 0,state[0]); + store_bigendian(statebytes + 8,state[1]); + store_bigendian(statebytes + 16,state[2]); + store_bigendian(statebytes + 24,state[3]); + store_bigendian(statebytes + 32,state[4]); + store_bigendian(statebytes + 40,state[5]); + store_bigendian(statebytes + 48,state[6]); + store_bigendian(statebytes + 56,state[7]); + + return 0; } #define blocks crypto_hashblocks static const unsigned char iv[64] = { - 0x6a,0x09,0xe6,0x67,0xf3,0xbc,0xc9,0x08, - 0xbb,0x67,0xae,0x85,0x84,0xca,0xa7,0x3b, - 0x3c,0x6e,0xf3,0x72,0xfe,0x94,0xf8,0x2b, - 0xa5,0x4f,0xf5,0x3a,0x5f,0x1d,0x36,0xf1, - 0x51,0x0e,0x52,0x7f,0xad,0xe6,0x82,0xd1, - 0x9b,0x05,0x68,0x8c,0x2b,0x3e,0x6c,0x1f, - 0x1f,0x83,0xd9,0xab,0xfb,0x41,0xbd,0x6b, - 0x5b,0xe0,0xcd,0x19,0x13,0x7e,0x21,0x79 + 0x6a,0x09,0xe6,0x67,0xf3,0xbc,0xc9,0x08, + 0xbb,0x67,0xae,0x85,0x84,0xca,0xa7,0x3b, + 0x3c,0x6e,0xf3,0x72,0xfe,0x94,0xf8,0x2b, + 0xa5,0x4f,0xf5,0x3a,0x5f,0x1d,0x36,0xf1, + 0x51,0x0e,0x52,0x7f,0xad,0xe6,0x82,0xd1, + 0x9b,0x05,0x68,0x8c,0x2b,0x3e,0x6c,0x1f, + 0x1f,0x83,0xd9,0xab,0xfb,0x41,0xbd,0x6b, + 0x5b,0xe0,0xcd,0x19,0x13,0x7e,0x21,0x79 }; -////////////////////////////////////////////////////////////////////////////// -////////////////////////////////////////////////////////////////////////////// - void SHA512::hash(void *digest,const void *data,unsigned int len) { - unsigned char h[64]; - unsigned char padded[256]; - int i; - uint64_t bytes = len; - - const unsigned char *in = (const unsigned char *)data; - unsigned int inlen = len; - - for (i = 0;i < 64;++i) h[i] = iv[i]; - - blocks(h,in,inlen); - in += inlen; - inlen &= 127; - in -= inlen; - - for (i = 0;i < (int)inlen;++i) padded[i] = in[i]; - padded[inlen] = 0x80; - - if (inlen < 112) { - for (i = inlen + 1;i < 119;++i) padded[i] = 0; - padded[119] = (unsigned char)((bytes >> 61) & 0xff); - padded[120] = (unsigned char)((bytes >> 53) & 0xff); - padded[121] = (unsigned char)((bytes >> 45) & 0xff); - padded[122] = (unsigned char)((bytes >> 37) & 0xff); - padded[123] = (unsigned char)((bytes >> 29) & 0xff); - padded[124] = (unsigned char)((bytes >> 21) & 0xff); - padded[125] = (unsigned char)((bytes >> 13) & 0xff); - padded[126] = (unsigned char)((bytes >> 5) & 0xff); - padded[127] = (unsigned char)((bytes << 3) & 0xff); - blocks(h,padded,128); - } else { - for (i = inlen + 1;i < 247;++i) padded[i] = 0; - padded[247] = (unsigned char)((bytes >> 61) & 0xff); - padded[248] = (unsigned char)((bytes >> 53) & 0xff); - padded[249] = (unsigned char)((bytes >> 45) & 0xff); - padded[250] = (unsigned char)((bytes >> 37) & 0xff); - padded[251] = (unsigned char)((bytes >> 29) & 0xff); - padded[252] = (unsigned char)((bytes >> 21) & 0xff); - padded[253] = (unsigned char)((bytes >> 13) & 0xff); - padded[254] = (unsigned char)((bytes >> 5) & 0xff); - padded[255] = (unsigned char)((bytes << 3) & 0xff); - blocks(h,padded,256); - } - - for (i = 0;i < 64;++i) ((unsigned char *)digest)[i] = h[i]; + unsigned char h[64]; + unsigned char padded[256]; + int i; + uint64_t bytes = len; + + const unsigned char *in = (const unsigned char *)data; + unsigned int inlen = len; + + for (i = 0;i < 64;++i) h[i] = iv[i]; + + blocks(h,in,inlen); + in += inlen; + inlen &= 127; + in -= inlen; + + for (i = 0;i < (int)inlen;++i) padded[i] = in[i]; + padded[inlen] = 0x80; + + if (inlen < 112) { + for (i = inlen + 1;i < 119;++i) padded[i] = 0; + padded[119] = (unsigned char)((bytes >> 61) & 0xff); + padded[120] = (unsigned char)((bytes >> 53) & 0xff); + padded[121] = (unsigned char)((bytes >> 45) & 0xff); + padded[122] = (unsigned char)((bytes >> 37) & 0xff); + padded[123] = (unsigned char)((bytes >> 29) & 0xff); + padded[124] = (unsigned char)((bytes >> 21) & 0xff); + padded[125] = (unsigned char)((bytes >> 13) & 0xff); + padded[126] = (unsigned char)((bytes >> 5) & 0xff); + padded[127] = (unsigned char)((bytes << 3) & 0xff); + blocks(h,padded,128); + } else { + for (i = inlen + 1;i < 247;++i) padded[i] = 0; + padded[247] = (unsigned char)((bytes >> 61) & 0xff); + padded[248] = (unsigned char)((bytes >> 53) & 0xff); + padded[249] = (unsigned char)((bytes >> 45) & 0xff); + padded[250] = (unsigned char)((bytes >> 37) & 0xff); + padded[251] = (unsigned char)((bytes >> 29) & 0xff); + padded[252] = (unsigned char)((bytes >> 21) & 0xff); + padded[253] = (unsigned char)((bytes >> 13) & 0xff); + padded[254] = (unsigned char)((bytes >> 5) & 0xff); + padded[255] = (unsigned char)((bytes << 3) & 0xff); + blocks(h,padded,256); + } + + for (i = 0;i < 64;++i) ((unsigned char *)digest)[i] = h[i]; } } // namespace ZeroTier + +#endif // !ZT_HAVE_NATIVE_SHA512 + +// Internally re-export to included C code, which includes some fast crypto code ported in on some platforms. +// This eliminates the need to link against a third party SHA512() from this code +extern "C" void ZT_sha512internal(void *digest,const void *data,unsigned int len) +{ + ZeroTier::SHA512::hash(digest,data,len); +} |