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-rw-r--r--thirdparty/openssl/crypto/sha/sha256.c387
1 files changed, 387 insertions, 0 deletions
diff --git a/thirdparty/openssl/crypto/sha/sha256.c b/thirdparty/openssl/crypto/sha/sha256.c
new file mode 100644
index 0000000000..72a1159369
--- /dev/null
+++ b/thirdparty/openssl/crypto/sha/sha256.c
@@ -0,0 +1,387 @@
+/* crypto/sha/sha256.c */
+/* ====================================================================
+ * Copyright (c) 2004 The OpenSSL Project. All rights reserved
+ * according to the OpenSSL license [found in ../../LICENSE].
+ * ====================================================================
+ */
+#include <openssl/opensslconf.h>
+#if !defined(OPENSSL_NO_SHA) && !defined(OPENSSL_NO_SHA256)
+
+# include <stdlib.h>
+# include <string.h>
+
+# include <openssl/crypto.h>
+# include <openssl/sha.h>
+# include <openssl/opensslv.h>
+
+const char SHA256_version[] = "SHA-256" OPENSSL_VERSION_PTEXT;
+
+fips_md_init_ctx(SHA224, SHA256)
+{
+ memset(c, 0, sizeof(*c));
+ c->h[0] = 0xc1059ed8UL;
+ c->h[1] = 0x367cd507UL;
+ c->h[2] = 0x3070dd17UL;
+ c->h[3] = 0xf70e5939UL;
+ c->h[4] = 0xffc00b31UL;
+ c->h[5] = 0x68581511UL;
+ c->h[6] = 0x64f98fa7UL;
+ c->h[7] = 0xbefa4fa4UL;
+ c->md_len = SHA224_DIGEST_LENGTH;
+ return 1;
+}
+
+fips_md_init(SHA256)
+{
+ memset(c, 0, sizeof(*c));
+ c->h[0] = 0x6a09e667UL;
+ c->h[1] = 0xbb67ae85UL;
+ c->h[2] = 0x3c6ef372UL;
+ c->h[3] = 0xa54ff53aUL;
+ c->h[4] = 0x510e527fUL;
+ c->h[5] = 0x9b05688cUL;
+ c->h[6] = 0x1f83d9abUL;
+ c->h[7] = 0x5be0cd19UL;
+ c->md_len = SHA256_DIGEST_LENGTH;
+ return 1;
+}
+
+unsigned char *SHA224(const unsigned char *d, size_t n, unsigned char *md)
+{
+ SHA256_CTX c;
+ static unsigned char m[SHA224_DIGEST_LENGTH];
+
+ if (md == NULL)
+ md = m;
+ SHA224_Init(&c);
+ SHA256_Update(&c, d, n);
+ SHA256_Final(md, &c);
+ OPENSSL_cleanse(&c, sizeof(c));
+ return (md);
+}
+
+unsigned char *SHA256(const unsigned char *d, size_t n, unsigned char *md)
+{
+ SHA256_CTX c;
+ static unsigned char m[SHA256_DIGEST_LENGTH];
+
+ if (md == NULL)
+ md = m;
+ SHA256_Init(&c);
+ SHA256_Update(&c, d, n);
+ SHA256_Final(md, &c);
+ OPENSSL_cleanse(&c, sizeof(c));
+ return (md);
+}
+
+int SHA224_Update(SHA256_CTX *c, const void *data, size_t len)
+{
+ return SHA256_Update(c, data, len);
+}
+
+int SHA224_Final(unsigned char *md, SHA256_CTX *c)
+{
+ return SHA256_Final(md, c);
+}
+
+# define DATA_ORDER_IS_BIG_ENDIAN
+
+# define HASH_LONG SHA_LONG
+# define HASH_CTX SHA256_CTX
+# define HASH_CBLOCK SHA_CBLOCK
+/*
+ * Note that FIPS180-2 discusses "Truncation of the Hash Function Output."
+ * default: case below covers for it. It's not clear however if it's
+ * permitted to truncate to amount of bytes not divisible by 4. I bet not,
+ * but if it is, then default: case shall be extended. For reference.
+ * Idea behind separate cases for pre-defined lenghts is to let the
+ * compiler decide if it's appropriate to unroll small loops.
+ */
+# define HASH_MAKE_STRING(c,s) do { \
+ unsigned long ll; \
+ unsigned int nn; \
+ switch ((c)->md_len) \
+ { case SHA224_DIGEST_LENGTH: \
+ for (nn=0;nn<SHA224_DIGEST_LENGTH/4;nn++) \
+ { ll=(c)->h[nn]; (void)HOST_l2c(ll,(s)); } \
+ break; \
+ case SHA256_DIGEST_LENGTH: \
+ for (nn=0;nn<SHA256_DIGEST_LENGTH/4;nn++) \
+ { ll=(c)->h[nn]; (void)HOST_l2c(ll,(s)); } \
+ break; \
+ default: \
+ if ((c)->md_len > SHA256_DIGEST_LENGTH) \
+ return 0; \
+ for (nn=0;nn<(c)->md_len/4;nn++) \
+ { ll=(c)->h[nn]; (void)HOST_l2c(ll,(s)); } \
+ break; \
+ } \
+ } while (0)
+
+# define HASH_UPDATE SHA256_Update
+# define HASH_TRANSFORM SHA256_Transform
+# define HASH_FINAL SHA256_Final
+# define HASH_BLOCK_DATA_ORDER sha256_block_data_order
+# ifndef SHA256_ASM
+static
+# endif
+void sha256_block_data_order(SHA256_CTX *ctx, const void *in, size_t num);
+
+# include "md32_common.h"
+
+# ifndef SHA256_ASM
+static const SHA_LONG K256[64] = {
+ 0x428a2f98UL, 0x71374491UL, 0xb5c0fbcfUL, 0xe9b5dba5UL,
+ 0x3956c25bUL, 0x59f111f1UL, 0x923f82a4UL, 0xab1c5ed5UL,
+ 0xd807aa98UL, 0x12835b01UL, 0x243185beUL, 0x550c7dc3UL,
+ 0x72be5d74UL, 0x80deb1feUL, 0x9bdc06a7UL, 0xc19bf174UL,
+ 0xe49b69c1UL, 0xefbe4786UL, 0x0fc19dc6UL, 0x240ca1ccUL,
+ 0x2de92c6fUL, 0x4a7484aaUL, 0x5cb0a9dcUL, 0x76f988daUL,
+ 0x983e5152UL, 0xa831c66dUL, 0xb00327c8UL, 0xbf597fc7UL,
+ 0xc6e00bf3UL, 0xd5a79147UL, 0x06ca6351UL, 0x14292967UL,
+ 0x27b70a85UL, 0x2e1b2138UL, 0x4d2c6dfcUL, 0x53380d13UL,
+ 0x650a7354UL, 0x766a0abbUL, 0x81c2c92eUL, 0x92722c85UL,
+ 0xa2bfe8a1UL, 0xa81a664bUL, 0xc24b8b70UL, 0xc76c51a3UL,
+ 0xd192e819UL, 0xd6990624UL, 0xf40e3585UL, 0x106aa070UL,
+ 0x19a4c116UL, 0x1e376c08UL, 0x2748774cUL, 0x34b0bcb5UL,
+ 0x391c0cb3UL, 0x4ed8aa4aUL, 0x5b9cca4fUL, 0x682e6ff3UL,
+ 0x748f82eeUL, 0x78a5636fUL, 0x84c87814UL, 0x8cc70208UL,
+ 0x90befffaUL, 0xa4506cebUL, 0xbef9a3f7UL, 0xc67178f2UL
+};
+
+/*
+ * FIPS specification refers to right rotations, while our ROTATE macro
+ * is left one. This is why you might notice that rotation coefficients
+ * differ from those observed in FIPS document by 32-N...
+ */
+# define Sigma0(x) (ROTATE((x),30) ^ ROTATE((x),19) ^ ROTATE((x),10))
+# define Sigma1(x) (ROTATE((x),26) ^ ROTATE((x),21) ^ ROTATE((x),7))
+# define sigma0(x) (ROTATE((x),25) ^ ROTATE((x),14) ^ ((x)>>3))
+# define sigma1(x) (ROTATE((x),15) ^ ROTATE((x),13) ^ ((x)>>10))
+
+# define Ch(x,y,z) (((x) & (y)) ^ ((~(x)) & (z)))
+# define Maj(x,y,z) (((x) & (y)) ^ ((x) & (z)) ^ ((y) & (z)))
+
+# ifdef OPENSSL_SMALL_FOOTPRINT
+
+static void sha256_block_data_order(SHA256_CTX *ctx, const void *in,
+ size_t num)
+{
+ unsigned MD32_REG_T a, b, c, d, e, f, g, h, s0, s1, T1, T2;
+ SHA_LONG X[16], l;
+ int i;
+ const unsigned char *data = in;
+
+ while (num--) {
+
+ a = ctx->h[0];
+ b = ctx->h[1];
+ c = ctx->h[2];
+ d = ctx->h[3];
+ e = ctx->h[4];
+ f = ctx->h[5];
+ g = ctx->h[6];
+ h = ctx->h[7];
+
+ for (i = 0; i < 16; i++) {
+ HOST_c2l(data, l);
+ T1 = X[i] = l;
+ T1 += h + Sigma1(e) + Ch(e, f, g) + K256[i];
+ 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;
+ }
+
+ for (; i < 64; i++) {
+ s0 = X[(i + 1) & 0x0f];
+ s0 = sigma0(s0);
+ s1 = X[(i + 14) & 0x0f];
+ s1 = sigma1(s1);
+
+ T1 = X[i & 0xf] += s0 + s1 + X[(i + 9) & 0xf];
+ T1 += h + Sigma1(e) + Ch(e, f, g) + K256[i];
+ 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;
+ }
+
+ ctx->h[0] += a;
+ ctx->h[1] += b;
+ ctx->h[2] += c;
+ ctx->h[3] += d;
+ ctx->h[4] += e;
+ ctx->h[5] += f;
+ ctx->h[6] += g;
+ ctx->h[7] += h;
+
+ }
+}
+
+# else
+
+# define ROUND_00_15(i,a,b,c,d,e,f,g,h) do { \
+ T1 += h + Sigma1(e) + Ch(e,f,g) + K256[i]; \
+ h = Sigma0(a) + Maj(a,b,c); \
+ d += T1; h += T1; } while (0)
+
+# define ROUND_16_63(i,a,b,c,d,e,f,g,h,X) do { \
+ s0 = X[(i+1)&0x0f]; s0 = sigma0(s0); \
+ s1 = X[(i+14)&0x0f]; s1 = sigma1(s1); \
+ T1 = X[(i)&0x0f] += s0 + s1 + X[(i+9)&0x0f]; \
+ ROUND_00_15(i,a,b,c,d,e,f,g,h); } while (0)
+
+static void sha256_block_data_order(SHA256_CTX *ctx, const void *in,
+ size_t num)
+{
+ unsigned MD32_REG_T a, b, c, d, e, f, g, h, s0, s1, T1;
+ SHA_LONG X[16];
+ int i;
+ const unsigned char *data = in;
+ const union {
+ long one;
+ char little;
+ } is_endian = {
+ 1
+ };
+
+ while (num--) {
+
+ a = ctx->h[0];
+ b = ctx->h[1];
+ c = ctx->h[2];
+ d = ctx->h[3];
+ e = ctx->h[4];
+ f = ctx->h[5];
+ g = ctx->h[6];
+ h = ctx->h[7];
+
+ if (!is_endian.little && sizeof(SHA_LONG) == 4
+ && ((size_t)in % 4) == 0) {
+ const SHA_LONG *W = (const SHA_LONG *)data;
+
+ T1 = X[0] = W[0];
+ ROUND_00_15(0, a, b, c, d, e, f, g, h);
+ T1 = X[1] = W[1];
+ ROUND_00_15(1, h, a, b, c, d, e, f, g);
+ T1 = X[2] = W[2];
+ ROUND_00_15(2, g, h, a, b, c, d, e, f);
+ T1 = X[3] = W[3];
+ ROUND_00_15(3, f, g, h, a, b, c, d, e);
+ T1 = X[4] = W[4];
+ ROUND_00_15(4, e, f, g, h, a, b, c, d);
+ T1 = X[5] = W[5];
+ ROUND_00_15(5, d, e, f, g, h, a, b, c);
+ T1 = X[6] = W[6];
+ ROUND_00_15(6, c, d, e, f, g, h, a, b);
+ T1 = X[7] = W[7];
+ ROUND_00_15(7, b, c, d, e, f, g, h, a);
+ T1 = X[8] = W[8];
+ ROUND_00_15(8, a, b, c, d, e, f, g, h);
+ T1 = X[9] = W[9];
+ ROUND_00_15(9, h, a, b, c, d, e, f, g);
+ T1 = X[10] = W[10];
+ ROUND_00_15(10, g, h, a, b, c, d, e, f);
+ T1 = X[11] = W[11];
+ ROUND_00_15(11, f, g, h, a, b, c, d, e);
+ T1 = X[12] = W[12];
+ ROUND_00_15(12, e, f, g, h, a, b, c, d);
+ T1 = X[13] = W[13];
+ ROUND_00_15(13, d, e, f, g, h, a, b, c);
+ T1 = X[14] = W[14];
+ ROUND_00_15(14, c, d, e, f, g, h, a, b);
+ T1 = X[15] = W[15];
+ ROUND_00_15(15, b, c, d, e, f, g, h, a);
+
+ data += SHA256_CBLOCK;
+ } else {
+ SHA_LONG l;
+
+ HOST_c2l(data, l);
+ T1 = X[0] = l;
+ ROUND_00_15(0, a, b, c, d, e, f, g, h);
+ HOST_c2l(data, l);
+ T1 = X[1] = l;
+ ROUND_00_15(1, h, a, b, c, d, e, f, g);
+ HOST_c2l(data, l);
+ T1 = X[2] = l;
+ ROUND_00_15(2, g, h, a, b, c, d, e, f);
+ HOST_c2l(data, l);
+ T1 = X[3] = l;
+ ROUND_00_15(3, f, g, h, a, b, c, d, e);
+ HOST_c2l(data, l);
+ T1 = X[4] = l;
+ ROUND_00_15(4, e, f, g, h, a, b, c, d);
+ HOST_c2l(data, l);
+ T1 = X[5] = l;
+ ROUND_00_15(5, d, e, f, g, h, a, b, c);
+ HOST_c2l(data, l);
+ T1 = X[6] = l;
+ ROUND_00_15(6, c, d, e, f, g, h, a, b);
+ HOST_c2l(data, l);
+ T1 = X[7] = l;
+ ROUND_00_15(7, b, c, d, e, f, g, h, a);
+ HOST_c2l(data, l);
+ T1 = X[8] = l;
+ ROUND_00_15(8, a, b, c, d, e, f, g, h);
+ HOST_c2l(data, l);
+ T1 = X[9] = l;
+ ROUND_00_15(9, h, a, b, c, d, e, f, g);
+ HOST_c2l(data, l);
+ T1 = X[10] = l;
+ ROUND_00_15(10, g, h, a, b, c, d, e, f);
+ HOST_c2l(data, l);
+ T1 = X[11] = l;
+ ROUND_00_15(11, f, g, h, a, b, c, d, e);
+ HOST_c2l(data, l);
+ T1 = X[12] = l;
+ ROUND_00_15(12, e, f, g, h, a, b, c, d);
+ HOST_c2l(data, l);
+ T1 = X[13] = l;
+ ROUND_00_15(13, d, e, f, g, h, a, b, c);
+ HOST_c2l(data, l);
+ T1 = X[14] = l;
+ ROUND_00_15(14, c, d, e, f, g, h, a, b);
+ HOST_c2l(data, l);
+ T1 = X[15] = l;
+ ROUND_00_15(15, b, c, d, e, f, g, h, a);
+ }
+
+ for (i = 16; i < 64; i += 8) {
+ ROUND_16_63(i + 0, a, b, c, d, e, f, g, h, X);
+ ROUND_16_63(i + 1, h, a, b, c, d, e, f, g, X);
+ ROUND_16_63(i + 2, g, h, a, b, c, d, e, f, X);
+ ROUND_16_63(i + 3, f, g, h, a, b, c, d, e, X);
+ ROUND_16_63(i + 4, e, f, g, h, a, b, c, d, X);
+ ROUND_16_63(i + 5, d, e, f, g, h, a, b, c, X);
+ ROUND_16_63(i + 6, c, d, e, f, g, h, a, b, X);
+ ROUND_16_63(i + 7, b, c, d, e, f, g, h, a, X);
+ }
+
+ ctx->h[0] += a;
+ ctx->h[1] += b;
+ ctx->h[2] += c;
+ ctx->h[3] += d;
+ ctx->h[4] += e;
+ ctx->h[5] += f;
+ ctx->h[6] += g;
+ ctx->h[7] += h;
+
+ }
+}
+
+# endif
+# endif /* SHA256_ASM */
+
+#endif /* OPENSSL_NO_SHA256 */
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