inital commit

1 files changed, 387 insertions, 0 deletions

diff --git a/openssl/crypto/sha/sha256.c b/openssl/crypto/sha/sha256.c
new file mode 100644
index 0000000..72a1159
--- /dev/null
+++ b/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 */