summaryrefslogtreecommitdiff
path: root/dom/media/gmp/rlz/sha256.c
diff options
context:
space:
mode:
Diffstat (limited to 'dom/media/gmp/rlz/sha256.c')
-rw-r--r--dom/media/gmp/rlz/sha256.c469
1 files changed, 0 insertions, 469 deletions
diff --git a/dom/media/gmp/rlz/sha256.c b/dom/media/gmp/rlz/sha256.c
deleted file mode 100644
index 072de5195..000000000
--- a/dom/media/gmp/rlz/sha256.c
+++ /dev/null
@@ -1,469 +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/. */
-
-// Stripped down version of security/nss/lib/freebl/sha512.c
-// and related headers.
-
-#include "sha256.h"
-#include "string.h"
-#include "prcpucfg.h"
-#if defined(NSS_X86) || defined(SHA_NO_LONG_LONG)
-#define NOUNROLL512 1
-#undef HAVE_LONG_LONG
-#endif
-
-#define SHA256_BLOCK_LENGTH 64 /* bytes */
-
-typedef enum _SECStatus {
- SECWouldBlock = -2,
- SECFailure = -1,
- SECSuccess = 0
-} SECStatus;
-
-/* ============= Common constants and defines ======================= */
-
-#define W ctx->u.w
-#define B ctx->u.b
-#define H ctx->h
-
-#define SHR(x,n) (x >> n)
-#define SHL(x,n) (x << n)
-#define Ch(x,y,z) ((x & y) ^ (~x & z))
-#define Maj(x,y,z) ((x & y) ^ (x & z) ^ (y & z))
-#define SHA_MIN(a,b) (a < b ? a : b)
-
-/* Padding used with all flavors of SHA */
-static const PRUint8 pad[240] = {
-0x80,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
- 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
- /* compiler will fill the rest in with zeros */
-};
-
-/* ============= SHA256 implementation ================================== */
-
-/* SHA-256 constants, K256. */
-static const PRUint32 K256[64] = {
- 0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5,
- 0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,
- 0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3,
- 0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,
- 0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc,
- 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
- 0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7,
- 0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967,
- 0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13,
- 0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,
- 0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3,
- 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
- 0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5,
- 0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,
- 0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208,
- 0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2
-};
-
-/* SHA-256 initial hash values */
-static const PRUint32 H256[8] = {
- 0x6a09e667, 0xbb67ae85, 0x3c6ef372, 0xa54ff53a,
- 0x510e527f, 0x9b05688c, 0x1f83d9ab, 0x5be0cd19
-};
-
-#if defined(_MSC_VER)
-#include <stdlib.h>
-#pragma intrinsic(_byteswap_ulong)
-#define SHA_HTONL(x) _byteswap_ulong(x)
-#define BYTESWAP4(x) x = SHA_HTONL(x)
-#elif defined(__GNUC__) && defined(NSS_X86_OR_X64)
-static __inline__ PRUint32 swap4b(PRUint32 value)
-{
- __asm__("bswap %0" : "+r" (value));
- return (value);
-}
-#define SHA_HTONL(x) swap4b(x)
-#define BYTESWAP4(x) x = SHA_HTONL(x)
-
-#elif defined(__GNUC__) && (defined(__thumb2__) || \
- (!defined(__thumb__) && \
- (defined(__ARM_ARCH_6__) || \
- defined(__ARM_ARCH_6J__) || \
- defined(__ARM_ARCH_6K__) || \
- defined(__ARM_ARCH_6Z__) || \
- defined(__ARM_ARCH_6ZK__) || \
- defined(__ARM_ARCH_6T2__) || \
- defined(__ARM_ARCH_7__) || \
- defined(__ARM_ARCH_7A__) || \
- defined(__ARM_ARCH_7R__))))
-static __inline__ PRUint32 swap4b(PRUint32 value)
-{
- PRUint32 ret;
- __asm__("rev %0, %1" : "=r" (ret) : "r"(value));
- return ret;
-}
-#define SHA_HTONL(x) swap4b(x)
-#define BYTESWAP4(x) x = SHA_HTONL(x)
-
-#else
-#define SWAP4MASK 0x00FF00FF
-#define SHA_HTONL(x) (t1 = (x), t1 = (t1 << 16) | (t1 >> 16), \
- ((t1 & SWAP4MASK) << 8) | ((t1 >> 8) & SWAP4MASK))
-#define BYTESWAP4(x) x = SHA_HTONL(x)
-#endif
-
-#if defined(_MSC_VER)
-#pragma intrinsic (_lrotr, _lrotl)
-#define ROTR32(x,n) _lrotr(x,n)
-#define ROTL32(x,n) _lrotl(x,n)
-#else
-#define ROTR32(x,n) ((x >> n) | (x << ((8 * sizeof x) - n)))
-#define ROTL32(x,n) ((x << n) | (x >> ((8 * sizeof x) - n)))
-#endif
-
-/* Capitol Sigma and lower case sigma functions */
-#define S0(x) (ROTR32(x, 2) ^ ROTR32(x,13) ^ ROTR32(x,22))
-#define S1(x) (ROTR32(x, 6) ^ ROTR32(x,11) ^ ROTR32(x,25))
-#define s0(x) (t1 = x, ROTR32(t1, 7) ^ ROTR32(t1,18) ^ SHR(t1, 3))
-#define s1(x) (t2 = x, ROTR32(t2,17) ^ ROTR32(t2,19) ^ SHR(t2,10))
-
-void
-SHA256_Begin(SHA256Context *ctx)
-{
- memset(ctx, 0, sizeof *ctx);
- memcpy(H, H256, sizeof H256);
-}
-
-static void
-SHA256_Compress(SHA256Context *ctx)
-{
- {
- register PRUint32 t1, t2;
-
-#if defined(IS_LITTLE_ENDIAN)
- BYTESWAP4(W[0]);
- BYTESWAP4(W[1]);
- BYTESWAP4(W[2]);
- BYTESWAP4(W[3]);
- BYTESWAP4(W[4]);
- BYTESWAP4(W[5]);
- BYTESWAP4(W[6]);
- BYTESWAP4(W[7]);
- BYTESWAP4(W[8]);
- BYTESWAP4(W[9]);
- BYTESWAP4(W[10]);
- BYTESWAP4(W[11]);
- BYTESWAP4(W[12]);
- BYTESWAP4(W[13]);
- BYTESWAP4(W[14]);
- BYTESWAP4(W[15]);
-#endif
-
-#define INITW(t) W[t] = (s1(W[t-2]) + W[t-7] + s0(W[t-15]) + W[t-16])
-
- /* prepare the "message schedule" */
-#ifdef NOUNROLL256
- {
- int t;
- for (t = 16; t < 64; ++t) {
- INITW(t);
- }
- }
-#else
- INITW(16);
- INITW(17);
- INITW(18);
- INITW(19);
-
- INITW(20);
- INITW(21);
- INITW(22);
- INITW(23);
- INITW(24);
- INITW(25);
- INITW(26);
- INITW(27);
- INITW(28);
- INITW(29);
-
- INITW(30);
- INITW(31);
- INITW(32);
- INITW(33);
- INITW(34);
- INITW(35);
- INITW(36);
- INITW(37);
- INITW(38);
- INITW(39);
-
- INITW(40);
- INITW(41);
- INITW(42);
- INITW(43);
- INITW(44);
- INITW(45);
- INITW(46);
- INITW(47);
- INITW(48);
- INITW(49);
-
- INITW(50);
- INITW(51);
- INITW(52);
- INITW(53);
- INITW(54);
- INITW(55);
- INITW(56);
- INITW(57);
- INITW(58);
- INITW(59);
-
- INITW(60);
- INITW(61);
- INITW(62);
- INITW(63);
-
-#endif
-#undef INITW
- }
- {
- PRUint32 a, b, c, d, e, f, g, h;
-
- a = H[0];
- b = H[1];
- c = H[2];
- d = H[3];
- e = H[4];
- f = H[5];
- g = H[6];
- h = H[7];
-
-#define ROUND(n,a,b,c,d,e,f,g,h) \
- h += S1(e) + Ch(e,f,g) + K256[n] + W[n]; \
- d += h; \
- h += S0(a) + Maj(a,b,c);
-
-#ifdef NOUNROLL256
- {
- int t;
- for (t = 0; t < 64; t+= 8) {
- ROUND(t+0,a,b,c,d,e,f,g,h)
- ROUND(t+1,h,a,b,c,d,e,f,g)
- ROUND(t+2,g,h,a,b,c,d,e,f)
- ROUND(t+3,f,g,h,a,b,c,d,e)
- ROUND(t+4,e,f,g,h,a,b,c,d)
- ROUND(t+5,d,e,f,g,h,a,b,c)
- ROUND(t+6,c,d,e,f,g,h,a,b)
- ROUND(t+7,b,c,d,e,f,g,h,a)
- }
- }
-#else
- ROUND( 0,a,b,c,d,e,f,g,h)
- ROUND( 1,h,a,b,c,d,e,f,g)
- ROUND( 2,g,h,a,b,c,d,e,f)
- ROUND( 3,f,g,h,a,b,c,d,e)
- ROUND( 4,e,f,g,h,a,b,c,d)
- ROUND( 5,d,e,f,g,h,a,b,c)
- ROUND( 6,c,d,e,f,g,h,a,b)
- ROUND( 7,b,c,d,e,f,g,h,a)
-
- ROUND( 8,a,b,c,d,e,f,g,h)
- ROUND( 9,h,a,b,c,d,e,f,g)
- ROUND(10,g,h,a,b,c,d,e,f)
- ROUND(11,f,g,h,a,b,c,d,e)
- ROUND(12,e,f,g,h,a,b,c,d)
- ROUND(13,d,e,f,g,h,a,b,c)
- ROUND(14,c,d,e,f,g,h,a,b)
- ROUND(15,b,c,d,e,f,g,h,a)
-
- ROUND(16,a,b,c,d,e,f,g,h)
- ROUND(17,h,a,b,c,d,e,f,g)
- ROUND(18,g,h,a,b,c,d,e,f)
- ROUND(19,f,g,h,a,b,c,d,e)
- ROUND(20,e,f,g,h,a,b,c,d)
- ROUND(21,d,e,f,g,h,a,b,c)
- ROUND(22,c,d,e,f,g,h,a,b)
- ROUND(23,b,c,d,e,f,g,h,a)
-
- ROUND(24,a,b,c,d,e,f,g,h)
- ROUND(25,h,a,b,c,d,e,f,g)
- ROUND(26,g,h,a,b,c,d,e,f)
- ROUND(27,f,g,h,a,b,c,d,e)
- ROUND(28,e,f,g,h,a,b,c,d)
- ROUND(29,d,e,f,g,h,a,b,c)
- ROUND(30,c,d,e,f,g,h,a,b)
- ROUND(31,b,c,d,e,f,g,h,a)
-
- ROUND(32,a,b,c,d,e,f,g,h)
- ROUND(33,h,a,b,c,d,e,f,g)
- ROUND(34,g,h,a,b,c,d,e,f)
- ROUND(35,f,g,h,a,b,c,d,e)
- ROUND(36,e,f,g,h,a,b,c,d)
- ROUND(37,d,e,f,g,h,a,b,c)
- ROUND(38,c,d,e,f,g,h,a,b)
- ROUND(39,b,c,d,e,f,g,h,a)
-
- ROUND(40,a,b,c,d,e,f,g,h)
- ROUND(41,h,a,b,c,d,e,f,g)
- ROUND(42,g,h,a,b,c,d,e,f)
- ROUND(43,f,g,h,a,b,c,d,e)
- ROUND(44,e,f,g,h,a,b,c,d)
- ROUND(45,d,e,f,g,h,a,b,c)
- ROUND(46,c,d,e,f,g,h,a,b)
- ROUND(47,b,c,d,e,f,g,h,a)
-
- ROUND(48,a,b,c,d,e,f,g,h)
- ROUND(49,h,a,b,c,d,e,f,g)
- ROUND(50,g,h,a,b,c,d,e,f)
- ROUND(51,f,g,h,a,b,c,d,e)
- ROUND(52,e,f,g,h,a,b,c,d)
- ROUND(53,d,e,f,g,h,a,b,c)
- ROUND(54,c,d,e,f,g,h,a,b)
- ROUND(55,b,c,d,e,f,g,h,a)
-
- ROUND(56,a,b,c,d,e,f,g,h)
- ROUND(57,h,a,b,c,d,e,f,g)
- ROUND(58,g,h,a,b,c,d,e,f)
- ROUND(59,f,g,h,a,b,c,d,e)
- ROUND(60,e,f,g,h,a,b,c,d)
- ROUND(61,d,e,f,g,h,a,b,c)
- ROUND(62,c,d,e,f,g,h,a,b)
- ROUND(63,b,c,d,e,f,g,h,a)
-#endif
-
- H[0] += a;
- H[1] += b;
- H[2] += c;
- H[3] += d;
- H[4] += e;
- H[5] += f;
- H[6] += g;
- H[7] += h;
- }
-#undef ROUND
-}
-
-#undef s0
-#undef s1
-#undef S0
-#undef S1
-
-void
-SHA256_Update(SHA256Context *ctx, const unsigned char *input,
- unsigned int inputLen)
-{
- unsigned int inBuf = ctx->sizeLo & 0x3f;
- if (!inputLen)
- return;
-
- /* Add inputLen into the count of bytes processed, before processing */
- if ((ctx->sizeLo += inputLen) < inputLen)
- ctx->sizeHi++;
-
- /* if data already in buffer, attemp to fill rest of buffer */
- if (inBuf) {
- unsigned int todo = SHA256_BLOCK_LENGTH - inBuf;
- if (inputLen < todo)
- todo = inputLen;
- memcpy(B + inBuf, input, todo);
- input += todo;
- inputLen -= todo;
- if (inBuf + todo == SHA256_BLOCK_LENGTH)
- SHA256_Compress(ctx);
- }
-
- /* if enough data to fill one or more whole buffers, process them. */
- while (inputLen >= SHA256_BLOCK_LENGTH) {
- memcpy(B, input, SHA256_BLOCK_LENGTH);
- input += SHA256_BLOCK_LENGTH;
- inputLen -= SHA256_BLOCK_LENGTH;
- SHA256_Compress(ctx);
- }
- /* if data left over, fill it into buffer */
- if (inputLen)
- memcpy(B, input, inputLen);
-}
-
-void
-SHA256_End(SHA256Context *ctx, unsigned char *digest,
- unsigned int *digestLen, unsigned int maxDigestLen)
-{
- unsigned int inBuf = ctx->sizeLo & 0x3f;
- unsigned int padLen = (inBuf < 56) ? (56 - inBuf) : (56 + 64 - inBuf);
- PRUint32 hi, lo;
-#ifdef SWAP4MASK
- PRUint32 t1;
-#endif
-
- hi = (ctx->sizeHi << 3) | (ctx->sizeLo >> 29);
- lo = (ctx->sizeLo << 3);
-
- SHA256_Update(ctx, pad, padLen);
-
-#if defined(IS_LITTLE_ENDIAN)
- W[14] = SHA_HTONL(hi);
- W[15] = SHA_HTONL(lo);
-#else
- W[14] = hi;
- W[15] = lo;
-#endif
- SHA256_Compress(ctx);
-
- /* now output the answer */
-#if defined(IS_LITTLE_ENDIAN)
- BYTESWAP4(H[0]);
- BYTESWAP4(H[1]);
- BYTESWAP4(H[2]);
- BYTESWAP4(H[3]);
- BYTESWAP4(H[4]);
- BYTESWAP4(H[5]);
- BYTESWAP4(H[6]);
- BYTESWAP4(H[7]);
-#endif
- padLen = PR_MIN(SHA256_LENGTH, maxDigestLen);
- memcpy(digest, H, padLen);
- if (digestLen)
- *digestLen = padLen;
-}
-
-void
-SHA256_EndRaw(SHA256Context *ctx, unsigned char *digest,
- unsigned int *digestLen, unsigned int maxDigestLen)
-{
- PRUint32 h[8];
- unsigned int len;
-#ifdef SWAP4MASK
- PRUint32 t1;
-#endif
-
- memcpy(h, ctx->h, sizeof(h));
-
-#if defined(IS_LITTLE_ENDIAN)
- BYTESWAP4(h[0]);
- BYTESWAP4(h[1]);
- BYTESWAP4(h[2]);
- BYTESWAP4(h[3]);
- BYTESWAP4(h[4]);
- BYTESWAP4(h[5]);
- BYTESWAP4(h[6]);
- BYTESWAP4(h[7]);
-#endif
-
- len = PR_MIN(SHA256_LENGTH, maxDigestLen);
- memcpy(digest, h, len);
- if (digestLen)
- *digestLen = len;
-}
-
-SECStatus
-SHA256_HashBuf(unsigned char *dest, const unsigned char *src,
- PRUint32 src_length)
-{
- SHA256Context ctx;
- unsigned int outLen;
-
- SHA256_Begin(&ctx);
- SHA256_Update(&ctx, src, src_length);
- SHA256_End(&ctx, dest, &outLen, SHA256_LENGTH);
- memset(&ctx, 0, sizeof ctx);
-
- return SECSuccess;
-}
generated by cgit v1.2.3 (git 2.26.2) at 2024-11-09 23:46:20 +0000