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author | wolfbeast <mcwerewolf@gmail.com> | 2018-07-18 08:24:24 +0200 |
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committer | wolfbeast <mcwerewolf@gmail.com> | 2018-07-18 08:24:24 +0200 |
commit | fc61780b35af913801d72086456f493f63197da6 (patch) | |
tree | f85891288a7bd988da9f0f15ae64e5c63f00d493 /security/nss/lib/freebl/chacha20.c | |
parent | 69f7f9e5f1475891ce11cc4f431692f965b0cd30 (diff) | |
parent | 50d3e596bbe89c95615f96eb71f6bc5be737a1db (diff) | |
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Merge commit '50d3e596bbe89c95615f96eb71f6bc5be737a1db' into Basilisk-releasev2018.07.18
# Conflicts:
# browser/app/profile/firefox.js
# browser/components/preferences/jar.mn
Diffstat (limited to 'security/nss/lib/freebl/chacha20.c')
-rw-r--r-- | security/nss/lib/freebl/chacha20.c | 119 |
1 files changed, 0 insertions, 119 deletions
diff --git a/security/nss/lib/freebl/chacha20.c b/security/nss/lib/freebl/chacha20.c deleted file mode 100644 index f55d1e670..000000000 --- a/security/nss/lib/freebl/chacha20.c +++ /dev/null @@ -1,119 +0,0 @@ -/* This Source Code Form is subject to the terms of the Mozilla Public - * License, v. 2.0. If a copy of the MPL was not distributed with this - * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ - -/* Adopted from the public domain code in NaCl by djb. */ - -#include <string.h> -#include <stdio.h> - -#include "prtypes.h" -#include "secport.h" -#include "chacha20.h" - -#if defined(_MSC_VER) -#pragma intrinsic(_lrotl) -#define ROTL32(x, n) _lrotl(x, n) -#else -#define ROTL32(x, n) ((x << n) | (x >> ((8 * sizeof x) - n))) -#endif - -#define ROTATE(v, c) ROTL32((v), (c)) - -#define U32TO8_LITTLE(p, v) \ - { \ - (p)[0] = ((v)) & 0xff; \ - (p)[1] = ((v) >> 8) & 0xff; \ - (p)[2] = ((v) >> 16) & 0xff; \ - (p)[3] = ((v) >> 24) & 0xff; \ - } -#define U8TO32_LITTLE(p) \ - (((PRUint32)((p)[0])) | ((PRUint32)((p)[1]) << 8) | \ - ((PRUint32)((p)[2]) << 16) | ((PRUint32)((p)[3]) << 24)) - -#define QUARTERROUND(x, a, b, c, d) \ - x[a] = x[a] + x[b]; \ - x[d] = ROTATE(x[d] ^ x[a], 16); \ - x[c] = x[c] + x[d]; \ - x[b] = ROTATE(x[b] ^ x[c], 12); \ - x[a] = x[a] + x[b]; \ - x[d] = ROTATE(x[d] ^ x[a], 8); \ - x[c] = x[c] + x[d]; \ - x[b] = ROTATE(x[b] ^ x[c], 7); - -static void -ChaChaCore(unsigned char output[64], const PRUint32 input[16], int num_rounds) -{ - PRUint32 x[16]; - int i; - - PORT_Memcpy(x, input, sizeof(PRUint32) * 16); - for (i = num_rounds; i > 0; i -= 2) { - QUARTERROUND(x, 0, 4, 8, 12) - QUARTERROUND(x, 1, 5, 9, 13) - QUARTERROUND(x, 2, 6, 10, 14) - QUARTERROUND(x, 3, 7, 11, 15) - QUARTERROUND(x, 0, 5, 10, 15) - QUARTERROUND(x, 1, 6, 11, 12) - QUARTERROUND(x, 2, 7, 8, 13) - QUARTERROUND(x, 3, 4, 9, 14) - } - - for (i = 0; i < 16; ++i) { - x[i] = x[i] + input[i]; - } - for (i = 0; i < 16; ++i) { - U32TO8_LITTLE(output + 4 * i, x[i]); - } -} - -static const unsigned char sigma[16] = "expand 32-byte k"; - -void -ChaCha20XOR(unsigned char *out, const unsigned char *in, unsigned int inLen, - const unsigned char key[32], const unsigned char nonce[12], - uint32_t counter) -{ - unsigned char block[64]; - PRUint32 input[16]; - unsigned int i; - - input[4] = U8TO32_LITTLE(key + 0); - input[5] = U8TO32_LITTLE(key + 4); - input[6] = U8TO32_LITTLE(key + 8); - input[7] = U8TO32_LITTLE(key + 12); - - input[8] = U8TO32_LITTLE(key + 16); - input[9] = U8TO32_LITTLE(key + 20); - input[10] = U8TO32_LITTLE(key + 24); - input[11] = U8TO32_LITTLE(key + 28); - - input[0] = U8TO32_LITTLE(sigma + 0); - input[1] = U8TO32_LITTLE(sigma + 4); - input[2] = U8TO32_LITTLE(sigma + 8); - input[3] = U8TO32_LITTLE(sigma + 12); - - input[12] = counter; - input[13] = U8TO32_LITTLE(nonce + 0); - input[14] = U8TO32_LITTLE(nonce + 4); - input[15] = U8TO32_LITTLE(nonce + 8); - - while (inLen >= 64) { - ChaChaCore(block, input, 20); - for (i = 0; i < 64; i++) { - out[i] = in[i] ^ block[i]; - } - - input[12]++; - inLen -= 64; - in += 64; - out += 64; - } - - if (inLen > 0) { - ChaChaCore(block, input, 20); - for (i = 0; i < inLen; i++) { - out[i] = in[i] ^ block[i]; - } - } -} |