Add libotr/etc sources

1 files changed, 707 insertions, 0 deletions

diff --git a/libotr/libgcrypt-1.8.7/cipher/sha256.c b/libotr/libgcrypt-1.8.7/cipher/sha256.c
new file mode 100644
index 0000000..d174321
--- /dev/null
+++ b/libotr/libgcrypt-1.8.7/cipher/sha256.c
@@ -0,0 +1,707 @@
+/* sha256.c - SHA256 hash function
+ * Copyright (C) 2003, 2006, 2008, 2009 Free Software Foundation, Inc.
+ *
+ * This file is part of Libgcrypt.
+ *
+ * Libgcrypt is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * Libgcrypt 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 Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+/*  Test vectors:
+
+    "abc"
+    SHA224: 23097d22 3405d822 8642a477 bda255b3 2aadbce4 bda0b3f7 e36c9da7
+    SHA256: ba7816bf 8f01cfea 414140de 5dae2223 b00361a3 96177a9c b410ff61 f20015ad
+
+    "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq"
+    SHA224: 75388b16 512776cc 5dba5da1 fd890150 b0c6455c b4f58b19 52522525
+    SHA256: 248d6a61 d20638b8 e5c02693 0c3e6039 a33ce459 64ff2167 f6ecedd4 19db06c1
+
+    "a" one million times
+    SHA224: 20794655 980c91d8 bbb4c1ea 97618a4b f03f4258 1948b2ee 4ee7ad67
+    SHA256: cdc76e5c 9914fb92 81a1c7e2 84d73e67 f1809a48 a497200e 046d39cc c7112cd0
+
+ */
+
+
+#include <config.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "g10lib.h"
+#include "bithelp.h"
+#include "bufhelp.h"
+#include "cipher.h"
+#include "hash-common.h"
+
+
+/* USE_SSSE3 indicates whether to compile with Intel SSSE3 code. */
+#undef USE_SSSE3
+#if defined(__x86_64__) && defined(HAVE_GCC_INLINE_ASM_SSSE3) && \
+    defined(HAVE_INTEL_SYNTAX_PLATFORM_AS) && \
+    (defined(HAVE_COMPATIBLE_GCC_AMD64_PLATFORM_AS) || \
+     defined(HAVE_COMPATIBLE_GCC_WIN64_PLATFORM_AS))
+# define USE_SSSE3 1
+#endif
+
+/* USE_AVX indicates whether to compile with Intel AVX code. */
+#undef USE_AVX
+#if defined(__x86_64__) && defined(HAVE_GCC_INLINE_ASM_AVX) && \
+    defined(HAVE_INTEL_SYNTAX_PLATFORM_AS) && \
+    (defined(HAVE_COMPATIBLE_GCC_AMD64_PLATFORM_AS) || \
+     defined(HAVE_COMPATIBLE_GCC_WIN64_PLATFORM_AS))
+# define USE_AVX 1
+#endif
+
+/* USE_AVX2 indicates whether to compile with Intel AVX2/BMI2 code. */
+#undef USE_AVX2
+#if defined(__x86_64__) && defined(HAVE_GCC_INLINE_ASM_AVX2) && \
+    defined(HAVE_GCC_INLINE_ASM_BMI2) && \
+    defined(HAVE_INTEL_SYNTAX_PLATFORM_AS) && \
+    (defined(HAVE_COMPATIBLE_GCC_AMD64_PLATFORM_AS) || \
+     defined(HAVE_COMPATIBLE_GCC_WIN64_PLATFORM_AS))
+# define USE_AVX2 1
+#endif
+
+/* USE_ARM_CE indicates whether to enable ARMv8 Crypto Extension assembly
+ * code. */
+#undef USE_ARM_CE
+#ifdef ENABLE_ARM_CRYPTO_SUPPORT
+# if defined(HAVE_ARM_ARCH_V6) && defined(__ARMEL__) \
+     && defined(HAVE_COMPATIBLE_GCC_ARM_PLATFORM_AS) \
+     && defined(HAVE_GCC_INLINE_ASM_AARCH32_CRYPTO)
+#  define USE_ARM_CE 1
+# elif defined(__AARCH64EL__) \
+       && defined(HAVE_COMPATIBLE_GCC_AARCH64_PLATFORM_AS) \
+       && defined(HAVE_GCC_INLINE_ASM_AARCH64_CRYPTO)
+#  define USE_ARM_CE 1
+# endif
+#endif
+
+
+typedef struct {
+  gcry_md_block_ctx_t bctx;
+  u32  h0,h1,h2,h3,h4,h5,h6,h7;
+#ifdef USE_SSSE3
+  unsigned int use_ssse3:1;
+#endif
+#ifdef USE_AVX
+  unsigned int use_avx:1;
+#endif
+#ifdef USE_AVX2
+  unsigned int use_avx2:1;
+#endif
+#ifdef USE_ARM_CE
+  unsigned int use_arm_ce:1;
+#endif
+} SHA256_CONTEXT;
+
+
+static unsigned int
+transform (void *c, const unsigned char *data, size_t nblks);
+
+
+static void
+sha256_init (void *context, unsigned int flags)
+{
+  SHA256_CONTEXT *hd = context;
+  unsigned int features = _gcry_get_hw_features ();
+
+  (void)flags;
+
+  hd->h0 = 0x6a09e667;
+  hd->h1 = 0xbb67ae85;
+  hd->h2 = 0x3c6ef372;
+  hd->h3 = 0xa54ff53a;
+  hd->h4 = 0x510e527f;
+  hd->h5 = 0x9b05688c;
+  hd->h6 = 0x1f83d9ab;
+  hd->h7 = 0x5be0cd19;
+
+  hd->bctx.nblocks = 0;
+  hd->bctx.nblocks_high = 0;
+  hd->bctx.count = 0;
+  hd->bctx.blocksize = 64;
+  hd->bctx.bwrite = transform;
+
+#ifdef USE_SSSE3
+  hd->use_ssse3 = (features & HWF_INTEL_SSSE3) != 0;
+#endif
+#ifdef USE_AVX
+  /* AVX implementation uses SHLD which is known to be slow on non-Intel CPUs.
+   * Therefore use this implementation on Intel CPUs only. */
+  hd->use_avx = (features & HWF_INTEL_AVX) && (features & HWF_INTEL_FAST_SHLD);
+#endif
+#ifdef USE_AVX2
+  hd->use_avx2 = (features & HWF_INTEL_AVX2) && (features & HWF_INTEL_BMI2);
+#endif
+#ifdef USE_ARM_CE
+  hd->use_arm_ce = (features & HWF_ARM_SHA2) != 0;
+#endif
+  (void)features;
+}
+
+
+static void
+sha224_init (void *context, unsigned int flags)
+{
+  SHA256_CONTEXT *hd = context;
+  unsigned int features = _gcry_get_hw_features ();
+
+  (void)flags;
+
+  hd->h0 = 0xc1059ed8;
+  hd->h1 = 0x367cd507;
+  hd->h2 = 0x3070dd17;
+  hd->h3 = 0xf70e5939;
+  hd->h4 = 0xffc00b31;
+  hd->h5 = 0x68581511;
+  hd->h6 = 0x64f98fa7;
+  hd->h7 = 0xbefa4fa4;
+
+  hd->bctx.nblocks = 0;
+  hd->bctx.nblocks_high = 0;
+  hd->bctx.count = 0;
+  hd->bctx.blocksize = 64;
+  hd->bctx.bwrite = transform;
+
+#ifdef USE_SSSE3
+  hd->use_ssse3 = (features & HWF_INTEL_SSSE3) != 0;
+#endif
+#ifdef USE_AVX
+  /* AVX implementation uses SHLD which is known to be slow on non-Intel CPUs.
+   * Therefore use this implementation on Intel CPUs only. */
+  hd->use_avx = (features & HWF_INTEL_AVX) && (features & HWF_INTEL_FAST_SHLD);
+#endif
+#ifdef USE_AVX2
+  hd->use_avx2 = (features & HWF_INTEL_AVX2) && (features & HWF_INTEL_BMI2);
+#endif
+#ifdef USE_ARM_CE
+  hd->use_arm_ce = (features & HWF_ARM_SHA2) != 0;
+#endif
+  (void)features;
+}
+
+
+/*
+  Transform the message X which consists of 16 32-bit-words. See FIPS
+  180-2 for details.  */
+#define R(a,b,c,d,e,f,g,h,k,w) do                                 \
+          {                                                       \
+            t1 = (h) + Sum1((e)) + Cho((e),(f),(g)) + (k) + (w);  \
+            t2 = Sum0((a)) + Maj((a),(b),(c));                    \
+            d += t1;                                              \
+            h  = t1 + t2;                                         \
+          } while (0)
+
+/* (4.2) same as SHA-1's F1.  */
+#define Cho(x, y, z)  (z ^ (x & (y ^ z)))
+
+/* (4.3) same as SHA-1's F3 */
+#define Maj(x, y, z)  ((x & y) + (z & (x ^ y)))
+
+/* (4.4) */
+#define Sum0(x)       (ror (x, 2) ^ ror (x, 13) ^ ror (x, 22))
+
+/* (4.5) */
+#define Sum1(x)       (ror (x, 6) ^ ror (x, 11) ^ ror (x, 25))
+
+/* Message expansion */
+#define S0(x) (ror ((x), 7) ^ ror ((x), 18) ^ ((x) >> 3))       /* (4.6) */
+#define S1(x) (ror ((x), 17) ^ ror ((x), 19) ^ ((x) >> 10))     /* (4.7) */
+#define I(i) ( w[i] = buf_get_be32(data + i * 4) )
+#define W(i) ( w[i&0x0f] =    S1(w[(i-2) &0x0f]) \
+                            +    w[(i-7) &0x0f]  \
+                            + S0(w[(i-15)&0x0f]) \
+                            +    w[(i-16)&0x0f] )
+
+static unsigned int
+transform_blk (void *ctx, const unsigned char *data)
+{
+  SHA256_CONTEXT *hd = ctx;
+  static const u32 K[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
+  };
+
+  u32 a,b,c,d,e,f,g,h,t1,t2;
+  u32 w[16];
+
+  a = hd->h0;
+  b = hd->h1;
+  c = hd->h2;
+  d = hd->h3;
+  e = hd->h4;
+  f = hd->h5;
+  g = hd->h6;
+  h = hd->h7;
+
+  R(a, b, c, d, e, f, g, h, K[0], I(0));
+  R(h, a, b, c, d, e, f, g, K[1], I(1));
+  R(g, h, a, b, c, d, e, f, K[2], I(2));
+  R(f, g, h, a, b, c, d, e, K[3], I(3));
+  R(e, f, g, h, a, b, c, d, K[4], I(4));
+  R(d, e, f, g, h, a, b, c, K[5], I(5));
+  R(c, d, e, f, g, h, a, b, K[6], I(6));
+  R(b, c, d, e, f, g, h, a, K[7], I(7));
+  R(a, b, c, d, e, f, g, h, K[8], I(8));
+  R(h, a, b, c, d, e, f, g, K[9], I(9));
+  R(g, h, a, b, c, d, e, f, K[10], I(10));
+  R(f, g, h, a, b, c, d, e, K[11], I(11));
+  R(e, f, g, h, a, b, c, d, K[12], I(12));
+  R(d, e, f, g, h, a, b, c, K[13], I(13));
+  R(c, d, e, f, g, h, a, b, K[14], I(14));
+  R(b, c, d, e, f, g, h, a, K[15], I(15));
+
+  R(a, b, c, d, e, f, g, h, K[16], W(16));
+  R(h, a, b, c, d, e, f, g, K[17], W(17));
+  R(g, h, a, b, c, d, e, f, K[18], W(18));
+  R(f, g, h, a, b, c, d, e, K[19], W(19));
+  R(e, f, g, h, a, b, c, d, K[20], W(20));
+  R(d, e, f, g, h, a, b, c, K[21], W(21));
+  R(c, d, e, f, g, h, a, b, K[22], W(22));
+  R(b, c, d, e, f, g, h, a, K[23], W(23));
+  R(a, b, c, d, e, f, g, h, K[24], W(24));
+  R(h, a, b, c, d, e, f, g, K[25], W(25));
+  R(g, h, a, b, c, d, e, f, K[26], W(26));
+  R(f, g, h, a, b, c, d, e, K[27], W(27));
+  R(e, f, g, h, a, b, c, d, K[28], W(28));
+  R(d, e, f, g, h, a, b, c, K[29], W(29));
+  R(c, d, e, f, g, h, a, b, K[30], W(30));
+  R(b, c, d, e, f, g, h, a, K[31], W(31));
+
+  R(a, b, c, d, e, f, g, h, K[32], W(32));
+  R(h, a, b, c, d, e, f, g, K[33], W(33));
+  R(g, h, a, b, c, d, e, f, K[34], W(34));
+  R(f, g, h, a, b, c, d, e, K[35], W(35));
+  R(e, f, g, h, a, b, c, d, K[36], W(36));
+  R(d, e, f, g, h, a, b, c, K[37], W(37));
+  R(c, d, e, f, g, h, a, b, K[38], W(38));
+  R(b, c, d, e, f, g, h, a, K[39], W(39));
+  R(a, b, c, d, e, f, g, h, K[40], W(40));
+  R(h, a, b, c, d, e, f, g, K[41], W(41));
+  R(g, h, a, b, c, d, e, f, K[42], W(42));
+  R(f, g, h, a, b, c, d, e, K[43], W(43));
+  R(e, f, g, h, a, b, c, d, K[44], W(44));
+  R(d, e, f, g, h, a, b, c, K[45], W(45));
+  R(c, d, e, f, g, h, a, b, K[46], W(46));
+  R(b, c, d, e, f, g, h, a, K[47], W(47));
+
+  R(a, b, c, d, e, f, g, h, K[48], W(48));
+  R(h, a, b, c, d, e, f, g, K[49], W(49));
+  R(g, h, a, b, c, d, e, f, K[50], W(50));
+  R(f, g, h, a, b, c, d, e, K[51], W(51));
+  R(e, f, g, h, a, b, c, d, K[52], W(52));
+  R(d, e, f, g, h, a, b, c, K[53], W(53));
+  R(c, d, e, f, g, h, a, b, K[54], W(54));
+  R(b, c, d, e, f, g, h, a, K[55], W(55));
+  R(a, b, c, d, e, f, g, h, K[56], W(56));
+  R(h, a, b, c, d, e, f, g, K[57], W(57));
+  R(g, h, a, b, c, d, e, f, K[58], W(58));
+  R(f, g, h, a, b, c, d, e, K[59], W(59));
+  R(e, f, g, h, a, b, c, d, K[60], W(60));
+  R(d, e, f, g, h, a, b, c, K[61], W(61));
+  R(c, d, e, f, g, h, a, b, K[62], W(62));
+  R(b, c, d, e, f, g, h, a, K[63], W(63));
+
+  hd->h0 += a;
+  hd->h1 += b;
+  hd->h2 += c;
+  hd->h3 += d;
+  hd->h4 += e;
+  hd->h5 += f;
+  hd->h6 += g;
+  hd->h7 += h;
+
+  return /*burn_stack*/ 26*4+32;
+}
+#undef S0
+#undef S1
+#undef R
+
+
+/* Assembly implementations use SystemV ABI, ABI conversion and additional
+ * stack to store XMM6-XMM15 needed on Win64. */
+#undef ASM_FUNC_ABI
+#undef ASM_EXTRA_STACK
+#if defined(USE_SSSE3) || defined(USE_AVX) || defined(USE_AVX2)
+# ifdef HAVE_COMPATIBLE_GCC_WIN64_PLATFORM_AS
+#  define ASM_FUNC_ABI __attribute__((sysv_abi))
+#  define ASM_EXTRA_STACK (10 * 16)
+# else
+#  define ASM_FUNC_ABI
+#  define ASM_EXTRA_STACK 0
+# endif
+#endif
+
+
+#ifdef USE_SSSE3
+unsigned int _gcry_sha256_transform_amd64_ssse3(const void *input_data,
+                                                u32 state[8],
+                                                size_t num_blks) ASM_FUNC_ABI;
+#endif
+
+#ifdef USE_AVX
+unsigned int _gcry_sha256_transform_amd64_avx(const void *input_data,
+                                              u32 state[8],
+                                              size_t num_blks) ASM_FUNC_ABI;
+#endif
+
+#ifdef USE_AVX2
+unsigned int _gcry_sha256_transform_amd64_avx2(const void *input_data,
+                                               u32 state[8],
+                                               size_t num_blks) ASM_FUNC_ABI;
+#endif
+
+#ifdef USE_ARM_CE
+unsigned int _gcry_sha256_transform_armv8_ce(u32 state[8],
+                                             const void *input_data,
+                                             size_t num_blks);
+#endif
+
+static unsigned int
+transform (void *ctx, const unsigned char *data, size_t nblks)
+{
+  SHA256_CONTEXT *hd = ctx;
+  unsigned int burn;
+
+#ifdef USE_AVX2
+  if (hd->use_avx2)
+    return _gcry_sha256_transform_amd64_avx2 (data, &hd->h0, nblks)
+           + 4 * sizeof(void*) + ASM_EXTRA_STACK;
+#endif
+
+#ifdef USE_AVX
+  if (hd->use_avx)
+    return _gcry_sha256_transform_amd64_avx (data, &hd->h0, nblks)
+           + 4 * sizeof(void*) + ASM_EXTRA_STACK;
+#endif
+
+#ifdef USE_SSSE3
+  if (hd->use_ssse3)
+    return _gcry_sha256_transform_amd64_ssse3 (data, &hd->h0, nblks)
+           + 4 * sizeof(void*) + ASM_EXTRA_STACK;
+#endif
+
+#ifdef USE_ARM_CE
+  if (hd->use_arm_ce)
+    return _gcry_sha256_transform_armv8_ce (&hd->h0, data, nblks);
+#endif
+
+  do
+    {
+      burn = transform_blk (hd, data);
+      data += 64;
+    }
+  while (--nblks);
+
+#ifdef ASM_EXTRA_STACK
+  /* 'transform_blk' is typically inlined and XMM6-XMM15 are stored at
+   *  the prologue of this function. Therefore need to add ASM_EXTRA_STACK to
+   *  here too.
+   */
+  burn += ASM_EXTRA_STACK;
+#endif
+
+  return burn;
+}
+
+
+/*
+   The routine finally terminates the computation and returns the
+   digest.  The handle is prepared for a new cycle, but adding bytes
+   to the handle will the destroy the returned buffer.  Returns: 32
+   bytes with the message the digest.  */
+static void
+sha256_final(void *context)
+{
+  SHA256_CONTEXT *hd = context;
+  u32 t, th, msb, lsb;
+  byte *p;
+  unsigned int burn;
+
+  _gcry_md_block_write (hd, NULL, 0); /* flush */;
+
+  t = hd->bctx.nblocks;
+  if (sizeof t == sizeof hd->bctx.nblocks)
+    th = hd->bctx.nblocks_high;
+  else
+    th = hd->bctx.nblocks >> 32;
+
+  /* multiply by 64 to make a byte count */
+  lsb = t << 6;
+  msb = (th << 6) | (t >> 26);
+  /* add the count */
+  t = lsb;
+  if ((lsb += hd->bctx.count) < t)
+    msb++;
+  /* multiply by 8 to make a bit count */
+  t = lsb;
+  lsb <<= 3;
+  msb <<= 3;
+  msb |= t >> 29;
+
+  if (hd->bctx.count < 56)
+    { /* enough room */
+      hd->bctx.buf[hd->bctx.count++] = 0x80; /* pad */
+      while (hd->bctx.count < 56)
+        hd->bctx.buf[hd->bctx.count++] = 0;  /* pad */
+    }
+  else
+    { /* need one extra block */
+      hd->bctx.buf[hd->bctx.count++] = 0x80; /* pad character */
+      while (hd->bctx.count < 64)
+        hd->bctx.buf[hd->bctx.count++] = 0;
+      _gcry_md_block_write (hd, NULL, 0);  /* flush */;
+      memset (hd->bctx.buf, 0, 56 ); /* fill next block with zeroes */
+    }
+  /* append the 64 bit count */
+  buf_put_be32(hd->bctx.buf + 56, msb);
+  buf_put_be32(hd->bctx.buf + 60, lsb);
+  burn = transform (hd, hd->bctx.buf, 1);
+  _gcry_burn_stack (burn);
+
+  p = hd->bctx.buf;
+#define X(a) do { buf_put_be32(p, hd->h##a); p += 4; } while(0)
+  X(0);
+  X(1);
+  X(2);
+  X(3);
+  X(4);
+  X(5);
+  X(6);
+  X(7);
+#undef X
+}
+
+static byte *
+sha256_read (void *context)
+{
+  SHA256_CONTEXT *hd = context;
+
+  return hd->bctx.buf;
+}
+
+
+/* Shortcut functions which puts the hash value of the supplied buffer
+ * into outbuf which must have a size of 32 bytes.  */
+void
+_gcry_sha256_hash_buffer (void *outbuf, const void *buffer, size_t length)
+{
+  SHA256_CONTEXT hd;
+
+  sha256_init (&hd, 0);
+  _gcry_md_block_write (&hd, buffer, length);
+  sha256_final (&hd);
+  memcpy (outbuf, hd.bctx.buf, 32);
+}
+
+
+/* Variant of the above shortcut function using multiple buffers.  */
+void
+_gcry_sha256_hash_buffers (void *outbuf, const gcry_buffer_t *iov, int iovcnt)
+{
+  SHA256_CONTEXT hd;
+
+  sha256_init (&hd, 0);
+  for (;iovcnt > 0; iov++, iovcnt--)
+    _gcry_md_block_write (&hd,
+                          (const char*)iov[0].data + iov[0].off, iov[0].len);
+  sha256_final (&hd);
+  memcpy (outbuf, hd.bctx.buf, 32);
+}
+
+
+
+/*
+     Self-test section.
+ */
+
+
+static gpg_err_code_t
+selftests_sha224 (int extended, selftest_report_func_t report)
+{
+  const char *what;
+  const char *errtxt;
+
+  what = "short string";
+  errtxt = _gcry_hash_selftest_check_one
+    (GCRY_MD_SHA224, 0,
+     "abc", 3,
+     "\x23\x09\x7d\x22\x34\x05\xd8\x22\x86\x42\xa4\x77\xbd\xa2\x55\xb3"
+     "\x2a\xad\xbc\xe4\xbd\xa0\xb3\xf7\xe3\x6c\x9d\xa7", 28);
+  if (errtxt)
+    goto failed;
+
+  if (extended)
+    {
+      what = "long string";
+      errtxt = _gcry_hash_selftest_check_one
+        (GCRY_MD_SHA224, 0,
+         "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq", 56,
+         "\x75\x38\x8b\x16\x51\x27\x76\xcc\x5d\xba\x5d\xa1\xfd\x89\x01\x50"
+         "\xb0\xc6\x45\x5c\xb4\xf5\x8b\x19\x52\x52\x25\x25", 28);
+      if (errtxt)
+        goto failed;
+
+      what = "one million \"a\"";
+      errtxt = _gcry_hash_selftest_check_one
+        (GCRY_MD_SHA224, 1,
+         NULL, 0,
+         "\x20\x79\x46\x55\x98\x0c\x91\xd8\xbb\xb4\xc1\xea\x97\x61\x8a\x4b"
+         "\xf0\x3f\x42\x58\x19\x48\xb2\xee\x4e\xe7\xad\x67", 28);
+      if (errtxt)
+        goto failed;
+    }
+
+  return 0; /* Succeeded. */
+
+ failed:
+  if (report)
+    report ("digest", GCRY_MD_SHA224, what, errtxt);
+  return GPG_ERR_SELFTEST_FAILED;
+}
+
+static gpg_err_code_t
+selftests_sha256 (int extended, selftest_report_func_t report)
+{
+  const char *what;
+  const char *errtxt;
+
+  what = "short string";
+  errtxt = _gcry_hash_selftest_check_one
+    (GCRY_MD_SHA256, 0,
+     "abc", 3,
+     "\xba\x78\x16\xbf\x8f\x01\xcf\xea\x41\x41\x40\xde\x5d\xae\x22\x23"
+     "\xb0\x03\x61\xa3\x96\x17\x7a\x9c\xb4\x10\xff\x61\xf2\x00\x15\xad", 32);
+  if (errtxt)
+    goto failed;
+
+  if (extended)
+    {
+      what = "long string";
+      errtxt = _gcry_hash_selftest_check_one
+        (GCRY_MD_SHA256, 0,
+         "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq", 56,
+         "\x24\x8d\x6a\x61\xd2\x06\x38\xb8\xe5\xc0\x26\x93\x0c\x3e\x60\x39"
+         "\xa3\x3c\xe4\x59\x64\xff\x21\x67\xf6\xec\xed\xd4\x19\xdb\x06\xc1",
+         32);
+      if (errtxt)
+        goto failed;
+
+      what = "one million \"a\"";
+      errtxt = _gcry_hash_selftest_check_one
+        (GCRY_MD_SHA256, 1,
+         NULL, 0,
+         "\xcd\xc7\x6e\x5c\x99\x14\xfb\x92\x81\xa1\xc7\xe2\x84\xd7\x3e\x67"
+         "\xf1\x80\x9a\x48\xa4\x97\x20\x0e\x04\x6d\x39\xcc\xc7\x11\x2c\xd0",
+         32);
+      if (errtxt)
+        goto failed;
+    }
+
+  return 0; /* Succeeded. */
+
+ failed:
+  if (report)
+    report ("digest", GCRY_MD_SHA256, what, errtxt);
+  return GPG_ERR_SELFTEST_FAILED;
+}
+
+
+/* Run a full self-test for ALGO and return 0 on success.  */
+static gpg_err_code_t
+run_selftests (int algo, int extended, selftest_report_func_t report)
+{
+  gpg_err_code_t ec;
+
+  switch (algo)
+    {
+    case GCRY_MD_SHA224:
+      ec = selftests_sha224 (extended, report);
+      break;
+    case GCRY_MD_SHA256:
+      ec = selftests_sha256 (extended, report);
+      break;
+    default:
+      ec = GPG_ERR_DIGEST_ALGO;
+      break;
+
+    }
+  return ec;
+}
+
+
+
+
+static byte asn224[19] = /* Object ID is 2.16.840.1.101.3.4.2.4 */
+  { 0x30, 0x2D, 0x30, 0x0d, 0x06, 0x09, 0x60, 0x86, 0x48,
+    0x01, 0x65, 0x03, 0x04, 0x02, 0x04, 0x05, 0x00, 0x04,
+    0x1C
+  };
+
+static gcry_md_oid_spec_t oid_spec_sha224[] =
+  {
+    /* From RFC3874, Section 4 */
+    { "2.16.840.1.101.3.4.2.4" },
+    { NULL },
+  };
+
+static byte asn256[19] = /* Object ID is  2.16.840.1.101.3.4.2.1 */
+  { 0x30, 0x31, 0x30, 0x0d, 0x06, 0x09, 0x60, 0x86,
+    0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x01, 0x05,
+    0x00, 0x04, 0x20 };
+
+static gcry_md_oid_spec_t oid_spec_sha256[] =
+  {
+    /* According to the OpenPGP draft rfc2440-bis06 */
+    { "2.16.840.1.101.3.4.2.1" },
+    /* PKCS#1 sha256WithRSAEncryption */
+    { "1.2.840.113549.1.1.11" },
+
+    { NULL },
+  };
+
+gcry_md_spec_t _gcry_digest_spec_sha224 =
+  {
+    GCRY_MD_SHA224, {0, 1},
+    "SHA224", asn224, DIM (asn224), oid_spec_sha224, 28,
+    sha224_init, _gcry_md_block_write, sha256_final, sha256_read, NULL,
+    sizeof (SHA256_CONTEXT),
+    run_selftests
+  };
+
+gcry_md_spec_t _gcry_digest_spec_sha256 =
+  {
+    GCRY_MD_SHA256, {0, 1},
+    "SHA256", asn256, DIM (asn256), oid_spec_sha256, 32,
+    sha256_init, _gcry_md_block_write, sha256_final, sha256_read, NULL,
+    sizeof (SHA256_CONTEXT),
+    run_selftests
+  };