Major new upstream release, just ran svn-upgrade for now (and wrote some

debian/changelong entries).

4 files changed, 538 insertions, 0 deletions

diff --git a/src/libcrypto/libsha2/hmac_sha2.c b/src/libcrypto/libsha2/hmac_sha2.c
new file mode 100644
index 000000000..ad107eb62
--- /dev/null
+++ b/src/libcrypto/libsha2/hmac_sha2.c
@@ -0,0 +1,32 @@
+#ifdef __KERNEL__
+#include <linux/types.h>
+#include <linux/string.h>
+#else
+#include <sys/types.h>
+#include <string.h>
+#endif
+#include "hmac_generic.h"
+#include "sha2.h"
+#include "hmac_sha2.h"
+
+void inline sha256_result(sha256_context *ctx, u_int8_t * hash, int hashlen) {
+	sha256_final(ctx);
+	memcpy(hash, &ctx->sha_out[0], hashlen);
+}
+void inline sha512_result(sha512_context *ctx, u_int8_t * hash, int hashlen) {
+	sha512_final(ctx);
+	memcpy(hash, &ctx->sha_out[0], hashlen);
+}
+HMAC_SET_KEY_IMPL (sha256_hmac_set_key, 
+		sha256_hmac_context, SHA256_BLOCKSIZE, 
+		sha256_init, sha256_write)
+HMAC_HASH_IMPL (sha256_hmac_hash, 
+		sha256_hmac_context, sha256_context, SHA256_HASHLEN,
+		sha256_write, sha256_result)
+
+HMAC_SET_KEY_IMPL (sha512_hmac_set_key, 
+		sha512_hmac_context, SHA512_BLOCKSIZE, 
+		sha512_init, sha512_write)
+HMAC_HASH_IMPL (sha512_hmac_hash, 
+		sha512_hmac_context, sha512_context, SHA512_HASHLEN,
+		sha512_write, sha512_result)
diff --git a/src/libcrypto/libsha2/hmac_sha2.h b/src/libcrypto/libsha2/hmac_sha2.h
new file mode 100644
index 000000000..b7f8c747c
--- /dev/null
+++ b/src/libcrypto/libsha2/hmac_sha2.h
@@ -0,0 +1,17 @@
+typedef struct {
+	sha256_context ictx,octx;
+} sha256_hmac_context;
+typedef struct {
+	sha512_context ictx,octx;
+} sha512_hmac_context;
+#define SHA256_BLOCKSIZE 64
+#define SHA256_HASHLEN   32
+#define SHA384_BLOCKSIZE 128	/* XXX ok? */
+#define SHA384_HASHLEN   48
+#define SHA512_BLOCKSIZE 128
+#define SHA512_HASHLEN   64
+
+void sha256_hmac_hash(sha256_hmac_context *hctx, const u_int8_t * dat, int len, u_int8_t * hash, int hashlen);
+void sha256_hmac_set_key(sha256_hmac_context *hctx, const u_int8_t * key, int keylen);
+void sha512_hmac_hash(sha512_hmac_context *hctx, const u_int8_t * dat, int len, u_int8_t * hash, int hashlen);
+void sha512_hmac_set_key(sha512_hmac_context *hctx, const u_int8_t * key, int keylen);
diff --git a/src/libcrypto/libsha2/sha2.c b/src/libcrypto/libsha2/sha2.c
new file mode 100644
index 000000000..4debdad67
--- /dev/null
+++ b/src/libcrypto/libsha2/sha2.c
@@ -0,0 +1,437 @@
+/*
+ *  sha512.c
+ *
+ *  Written by Jari Ruusu, April 16 2001
+ *
+ *  Copyright 2001 by Jari Ruusu.
+ *  Redistribution of this file is permitted under the GNU Public License.
+ */
+
+#ifdef __KERNEL__
+#include <linux/string.h>
+#include <linux/types.h>
+#else
+#include <string.h>
+#include <sys/types.h>
+#endif
+#include "sha2.h"
+
+/* Define one or more of these. If none is defined, you get all of them */
+#if !defined(SHA256_NEEDED)&&!defined(SHA512_NEEDED)&&!defined(SHA384_NEEDED)
+# define SHA256_NEEDED  1
+# define SHA512_NEEDED  1
+# define SHA384_NEEDED  1
+#endif
+
+#if defined(SHA256_NEEDED)
+static const u_int32_t sha256_hashInit[8] = {
+    0x6a09e667, 0xbb67ae85, 0x3c6ef372, 0xa54ff53a, 0x510e527f, 0x9b05688c,
+    0x1f83d9ab, 0x5be0cd19
+};
+static const u_int32_t sha256_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
+};
+#endif
+
+#if defined(SHA512_NEEDED)
+static const u_int64_t sha512_hashInit[8] = {
+    0x6a09e667f3bcc908ULL, 0xbb67ae8584caa73bULL, 0x3c6ef372fe94f82bULL,
+    0xa54ff53a5f1d36f1ULL, 0x510e527fade682d1ULL, 0x9b05688c2b3e6c1fULL,
+    0x1f83d9abfb41bd6bULL, 0x5be0cd19137e2179ULL
+};
+#endif
+
+#if defined(SHA384_NEEDED)
+static const u_int64_t sha384_hashInit[8] = {
+    0xcbbb9d5dc1059ed8ULL, 0x629a292a367cd507ULL, 0x9159015a3070dd17ULL,
+    0x152fecd8f70e5939ULL, 0x67332667ffc00b31ULL, 0x8eb44a8768581511ULL,
+    0xdb0c2e0d64f98fa7ULL, 0x47b5481dbefa4fa4ULL
+};
+#endif
+
+#if defined(SHA512_NEEDED) || defined(SHA384_NEEDED)
+static const u_int64_t sha512_K[80] = {
+    0x428a2f98d728ae22ULL, 0x7137449123ef65cdULL, 0xb5c0fbcfec4d3b2fULL,
+    0xe9b5dba58189dbbcULL, 0x3956c25bf348b538ULL, 0x59f111f1b605d019ULL,
+    0x923f82a4af194f9bULL, 0xab1c5ed5da6d8118ULL, 0xd807aa98a3030242ULL,
+    0x12835b0145706fbeULL, 0x243185be4ee4b28cULL, 0x550c7dc3d5ffb4e2ULL,
+    0x72be5d74f27b896fULL, 0x80deb1fe3b1696b1ULL, 0x9bdc06a725c71235ULL,
+    0xc19bf174cf692694ULL, 0xe49b69c19ef14ad2ULL, 0xefbe4786384f25e3ULL,
+    0x0fc19dc68b8cd5b5ULL, 0x240ca1cc77ac9c65ULL, 0x2de92c6f592b0275ULL,
+    0x4a7484aa6ea6e483ULL, 0x5cb0a9dcbd41fbd4ULL, 0x76f988da831153b5ULL,
+    0x983e5152ee66dfabULL, 0xa831c66d2db43210ULL, 0xb00327c898fb213fULL,
+    0xbf597fc7beef0ee4ULL, 0xc6e00bf33da88fc2ULL, 0xd5a79147930aa725ULL,
+    0x06ca6351e003826fULL, 0x142929670a0e6e70ULL, 0x27b70a8546d22ffcULL,
+    0x2e1b21385c26c926ULL, 0x4d2c6dfc5ac42aedULL, 0x53380d139d95b3dfULL,
+    0x650a73548baf63deULL, 0x766a0abb3c77b2a8ULL, 0x81c2c92e47edaee6ULL,
+    0x92722c851482353bULL, 0xa2bfe8a14cf10364ULL, 0xa81a664bbc423001ULL,
+    0xc24b8b70d0f89791ULL, 0xc76c51a30654be30ULL, 0xd192e819d6ef5218ULL,
+    0xd69906245565a910ULL, 0xf40e35855771202aULL, 0x106aa07032bbd1b8ULL,
+    0x19a4c116b8d2d0c8ULL, 0x1e376c085141ab53ULL, 0x2748774cdf8eeb99ULL,
+    0x34b0bcb5e19b48a8ULL, 0x391c0cb3c5c95a63ULL, 0x4ed8aa4ae3418acbULL,
+    0x5b9cca4f7763e373ULL, 0x682e6ff3d6b2b8a3ULL, 0x748f82ee5defb2fcULL,
+    0x78a5636f43172f60ULL, 0x84c87814a1f0ab72ULL, 0x8cc702081a6439ecULL,
+    0x90befffa23631e28ULL, 0xa4506cebde82bde9ULL, 0xbef9a3f7b2c67915ULL,
+    0xc67178f2e372532bULL, 0xca273eceea26619cULL, 0xd186b8c721c0c207ULL,
+    0xeada7dd6cde0eb1eULL, 0xf57d4f7fee6ed178ULL, 0x06f067aa72176fbaULL,
+    0x0a637dc5a2c898a6ULL, 0x113f9804bef90daeULL, 0x1b710b35131c471bULL,
+    0x28db77f523047d84ULL, 0x32caab7b40c72493ULL, 0x3c9ebe0a15c9bebcULL,
+    0x431d67c49c100d4cULL, 0x4cc5d4becb3e42b6ULL, 0x597f299cfc657e2aULL,
+    0x5fcb6fab3ad6faecULL, 0x6c44198c4a475817ULL
+};
+#endif
+
+#define Ch(x,y,z)   (((x) & (y)) ^ ((~(x)) & (z)))
+#define Maj(x,y,z)  (((x) & (y)) ^ ((x) & (z)) ^ ((y) & (z)))
+#define R(x,y)      ((y) >> (x))
+
+#if defined(SHA256_NEEDED)
+void sha256_init(sha256_context *ctx)
+{
+    memcpy(&ctx->sha_H[0], &sha256_hashInit[0], sizeof(ctx->sha_H));
+    ctx->sha_blocks = 0;
+    ctx->sha_bufCnt = 0;
+}
+
+#define S(x,y)      (((y) >> (x)) | ((y) << (32 - (x))))
+#define uSig0(x)    ((S(2,(x))) ^ (S(13,(x))) ^ (S(22,(x))))
+#define uSig1(x)    ((S(6,(x))) ^ (S(11,(x))) ^ (S(25,(x))))
+#define lSig0(x)    ((S(7,(x))) ^ (S(18,(x))) ^ (R(3,(x))))
+#define lSig1(x)    ((S(17,(x))) ^ (S(19,(x))) ^ (R(10,(x))))
+
+static void sha256_transform(sha256_context *ctx, const unsigned char *datap)
+{
+    register int    j;
+    u_int32_t       a, b, c, d, e, f, g, h;
+    u_int32_t       T1, T2, W[64], Wm2, Wm15;
+
+    /* read the data, big endian byte order */
+    j = 0;
+    do {
+        W[j] = (((u_int32_t)(datap[0]))<<24) | (((u_int32_t)(datap[1]))<<16) |
+               (((u_int32_t)(datap[2]))<<8 ) | ((u_int32_t)(datap[3]));
+        datap += 4;
+    } while(++j < 16);
+    
+    /* initialize variables a...h */
+    a = ctx->sha_H[0];
+    b = ctx->sha_H[1];
+    c = ctx->sha_H[2];
+    d = ctx->sha_H[3];
+    e = ctx->sha_H[4];
+    f = ctx->sha_H[5];
+    g = ctx->sha_H[6];
+    h = ctx->sha_H[7];
+
+    /* apply compression function */
+    j = 0;
+    do {
+        if(j >= 16) {
+            Wm2 = W[j - 2];
+            Wm15 = W[j - 15];
+            W[j] = lSig1(Wm2) + W[j - 7] + lSig0(Wm15) + W[j - 16];
+        }
+        T1 = h + uSig1(e) + Ch(e,f,g) + sha256_K[j] + W[j];
+        T2 = uSig0(a) + Maj(a,b,c);
+        h = g; g = f; f = e;
+        e = d + T1;
+        d = c; c = b; b = a;
+        a = T1 + T2;
+    } while(++j < 64);
+
+    /* compute intermediate hash value */
+    ctx->sha_H[0] += a;
+    ctx->sha_H[1] += b;
+    ctx->sha_H[2] += c;
+    ctx->sha_H[3] += d;
+    ctx->sha_H[4] += e;
+    ctx->sha_H[5] += f;
+    ctx->sha_H[6] += g;
+    ctx->sha_H[7] += h;
+
+    ctx->sha_blocks++;
+}
+
+void sha256_write(sha256_context *ctx, const unsigned char *datap, int length)
+{
+    while(length > 0) {
+        if(!ctx->sha_bufCnt) {
+            while(length >= sizeof(ctx->sha_out)) {
+                sha256_transform(ctx, datap);
+                datap += sizeof(ctx->sha_out);
+                length -= sizeof(ctx->sha_out);
+            }
+            if(!length) return;
+        }
+        ctx->sha_out[ctx->sha_bufCnt] = *datap++;
+        length--;
+        if(++ctx->sha_bufCnt == sizeof(ctx->sha_out)) {
+            sha256_transform(ctx, &ctx->sha_out[0]);
+            ctx->sha_bufCnt = 0;
+        }
+    }
+}
+
+void sha256_final(sha256_context *ctx)
+{
+    register int    j;
+    u_int64_t       bitLength;
+    u_int32_t       i;
+    unsigned char   padByte, *datap;
+
+    bitLength = (ctx->sha_blocks << 9) | (ctx->sha_bufCnt << 3);
+    padByte = 0x80;
+    sha256_write(ctx, &padByte, 1);
+
+    /* pad extra space with zeroes */
+    padByte = 0;
+    while(ctx->sha_bufCnt != 56) {
+        sha256_write(ctx, &padByte, 1);
+    }
+
+    /* write bit length, big endian byte order */
+    ctx->sha_out[56] = bitLength >> 56;
+    ctx->sha_out[57] = bitLength >> 48;
+    ctx->sha_out[58] = bitLength >> 40;
+    ctx->sha_out[59] = bitLength >> 32;
+    ctx->sha_out[60] = bitLength >> 24;
+    ctx->sha_out[61] = bitLength >> 16;
+    ctx->sha_out[62] = bitLength >> 8;
+    ctx->sha_out[63] = bitLength;
+    sha256_transform(ctx, &ctx->sha_out[0]);
+    
+    /* return results in ctx->sha_out[0...31] */
+    datap = &ctx->sha_out[0];
+    j = 0;
+    do {
+        i = ctx->sha_H[j];
+        datap[0] = i >> 24;
+        datap[1] = i >> 16;
+        datap[2] = i >> 8;
+        datap[3] = i;
+        datap += 4;
+    } while(++j < 8);
+
+    /* clear sensitive information */
+    memset(&ctx->sha_out[32], 0, sizeof(sha256_context) - 32);
+}
+
+void sha256_hash_buffer(unsigned char *ib, int ile, unsigned char *ob, int ole)
+{
+    sha256_context ctx;
+
+    if(ole < 1) return;
+    memset(ob, 0, ole);
+    if(ole > 32) ole = 32;
+    sha256_init(&ctx);
+    sha256_write(&ctx, ib, ile);
+    sha256_final(&ctx);
+    memcpy(ob, &ctx.sha_out[0], ole);
+    memset(&ctx, 0, sizeof(ctx));
+}
+
+#endif
+
+#if defined(SHA512_NEEDED)
+void sha512_init(sha512_context *ctx)
+{
+    memcpy(&ctx->sha_H[0], &sha512_hashInit[0], sizeof(ctx->sha_H));
+    ctx->sha_blocks = 0;
+    ctx->sha_blocksMSB = 0;
+    ctx->sha_bufCnt = 0;
+}
+#endif
+
+#if defined(SHA512_NEEDED) || defined(SHA384_NEEDED)
+#undef S
+#undef uSig0
+#undef uSig1
+#undef lSig0
+#undef lSig1
+#define S(x,y)      (((y) >> (x)) | ((y) << (64 - (x))))
+#define uSig0(x)    ((S(28,(x))) ^ (S(34,(x))) ^ (S(39,(x))))
+#define uSig1(x)    ((S(14,(x))) ^ (S(18,(x))) ^ (S(41,(x))))
+#define lSig0(x)    ((S(1,(x))) ^ (S(8,(x))) ^ (R(7,(x))))
+#define lSig1(x)    ((S(19,(x))) ^ (S(61,(x))) ^ (R(6,(x))))
+
+static void sha512_transform(sha512_context *ctx, const unsigned char *datap)
+{
+    register int    j;
+    u_int64_t       a, b, c, d, e, f, g, h;
+    u_int64_t       T1, T2, W[80], Wm2, Wm15;
+
+    /* read the data, big endian byte order */
+    j = 0;
+    do {
+        W[j] = (((u_int64_t)(datap[0]))<<56) | (((u_int64_t)(datap[1]))<<48) |
+               (((u_int64_t)(datap[2]))<<40) | (((u_int64_t)(datap[3]))<<32) |
+               (((u_int64_t)(datap[4]))<<24) | (((u_int64_t)(datap[5]))<<16) |
+               (((u_int64_t)(datap[6]))<<8 ) | ((u_int64_t)(datap[7]));
+        datap += 8;
+    } while(++j < 16);
+    
+    /* initialize variables a...h */
+    a = ctx->sha_H[0];
+    b = ctx->sha_H[1];
+    c = ctx->sha_H[2];
+    d = ctx->sha_H[3];
+    e = ctx->sha_H[4];
+    f = ctx->sha_H[5];
+    g = ctx->sha_H[6];
+    h = ctx->sha_H[7];
+
+    /* apply compression function */
+    j = 0;
+    do {
+        if(j >= 16) {
+            Wm2 = W[j - 2];
+            Wm15 = W[j - 15];
+            W[j] = lSig1(Wm2) + W[j - 7] + lSig0(Wm15) + W[j - 16];
+        }
+        T1 = h + uSig1(e) + Ch(e,f,g) + sha512_K[j] + W[j];
+        T2 = uSig0(a) + Maj(a,b,c);
+        h = g; g = f; f = e;
+        e = d + T1;
+        d = c; c = b; b = a;
+        a = T1 + T2;
+    } while(++j < 80);
+
+    /* compute intermediate hash value */
+    ctx->sha_H[0] += a;
+    ctx->sha_H[1] += b;
+    ctx->sha_H[2] += c;
+    ctx->sha_H[3] += d;
+    ctx->sha_H[4] += e;
+    ctx->sha_H[5] += f;
+    ctx->sha_H[6] += g;
+    ctx->sha_H[7] += h;
+
+    ctx->sha_blocks++;
+    if(!ctx->sha_blocks) ctx->sha_blocksMSB++;
+}
+
+void sha512_write(sha512_context *ctx, const unsigned char *datap, int length)
+{
+    while(length > 0) {
+        if(!ctx->sha_bufCnt) {
+            while(length >= sizeof(ctx->sha_out)) {
+                sha512_transform(ctx, datap);
+                datap += sizeof(ctx->sha_out);
+                length -= sizeof(ctx->sha_out);
+            }
+            if(!length) return;
+        }
+        ctx->sha_out[ctx->sha_bufCnt] = *datap++;
+        length--;
+        if(++ctx->sha_bufCnt == sizeof(ctx->sha_out)) {
+            sha512_transform(ctx, &ctx->sha_out[0]);
+            ctx->sha_bufCnt = 0;
+        }
+    }
+}
+
+void sha512_final(sha512_context *ctx)
+{
+    register int    j;
+    u_int64_t       bitLength, bitLengthMSB;
+    u_int64_t       i;
+    unsigned char   padByte, *datap;
+
+    bitLength = (ctx->sha_blocks << 10) | (ctx->sha_bufCnt << 3);
+    bitLengthMSB = (ctx->sha_blocksMSB << 10) | (ctx->sha_blocks >> 54);
+    padByte = 0x80;
+    sha512_write(ctx, &padByte, 1);
+
+    /* pad extra space with zeroes */
+    padByte = 0;
+    while(ctx->sha_bufCnt != 112) {
+        sha512_write(ctx, &padByte, 1);
+    }
+
+    /* write bit length, big endian byte order */
+    ctx->sha_out[112] = bitLengthMSB >> 56;
+    ctx->sha_out[113] = bitLengthMSB >> 48;
+    ctx->sha_out[114] = bitLengthMSB >> 40;
+    ctx->sha_out[115] = bitLengthMSB >> 32;
+    ctx->sha_out[116] = bitLengthMSB >> 24;
+    ctx->sha_out[117] = bitLengthMSB >> 16;
+    ctx->sha_out[118] = bitLengthMSB >> 8;
+    ctx->sha_out[119] = bitLengthMSB;
+    ctx->sha_out[120] = bitLength >> 56;
+    ctx->sha_out[121] = bitLength >> 48;
+    ctx->sha_out[122] = bitLength >> 40;
+    ctx->sha_out[123] = bitLength >> 32;
+    ctx->sha_out[124] = bitLength >> 24;
+    ctx->sha_out[125] = bitLength >> 16;
+    ctx->sha_out[126] = bitLength >> 8;
+    ctx->sha_out[127] = bitLength;
+    sha512_transform(ctx, &ctx->sha_out[0]);
+    
+    /* return results in ctx->sha_out[0...63] */
+    datap = &ctx->sha_out[0];
+    j = 0;
+    do {
+        i = ctx->sha_H[j];
+        datap[0] = i >> 56;
+        datap[1] = i >> 48;
+        datap[2] = i >> 40;
+        datap[3] = i >> 32;
+        datap[4] = i >> 24;
+        datap[5] = i >> 16;
+        datap[6] = i >> 8;
+        datap[7] = i;
+        datap += 8;
+    } while(++j < 8);
+
+    /* clear sensitive information */
+    memset(&ctx->sha_out[64], 0, sizeof(sha512_context) - 64);
+}
+
+void sha512_hash_buffer(unsigned char *ib, int ile, unsigned char *ob, int ole)
+{
+    sha512_context ctx;
+
+    if(ole < 1) return;
+    memset(ob, 0, ole);
+    if(ole > 64) ole = 64;
+    sha512_init(&ctx);
+    sha512_write(&ctx, ib, ile);
+    sha512_final(&ctx);
+    memcpy(ob, &ctx.sha_out[0], ole);
+    memset(&ctx, 0, sizeof(ctx));
+}
+#endif
+
+#if defined(SHA384_NEEDED)
+void sha384_init(sha512_context *ctx)
+{
+    memcpy(&ctx->sha_H[0], &sha384_hashInit[0], sizeof(ctx->sha_H));
+    ctx->sha_blocks = 0;
+    ctx->sha_blocksMSB = 0;
+    ctx->sha_bufCnt = 0;
+}
+
+void sha384_hash_buffer(unsigned char *ib, int ile, unsigned char *ob, int ole)
+{
+    sha512_context ctx;
+
+    if(ole < 1) return;
+    memset(ob, 0, ole);
+    if(ole > 48) ole = 48;
+    sha384_init(&ctx);
+    sha512_write(&ctx, ib, ile);
+    sha512_final(&ctx);
+    memcpy(ob, &ctx.sha_out[0], ole);
+    memset(&ctx, 0, sizeof(ctx));
+}
+#endif
diff --git a/src/libcrypto/libsha2/sha2.h b/src/libcrypto/libsha2/sha2.h
new file mode 100644
index 000000000..2dc03cfa8
--- /dev/null
+++ b/src/libcrypto/libsha2/sha2.h
@@ -0,0 +1,52 @@
+#ifndef _SHA2_H
+#define _SHA2_H
+/*
+ *  sha512.h
+ *
+ *  Written by Jari Ruusu, April 16 2001
+ *
+ *  Copyright 2001 by Jari Ruusu.
+ *  Redistribution of this file is permitted under the GNU Public License.
+ */
+
+#ifdef __KERNEL__
+#include <linux/types.h>
+#else
+#include <sys/types.h>
+#endif
+
+typedef struct {
+    unsigned char   sha_out[64];    /* results are here, bytes 0...31 */
+    u_int32_t       sha_H[8];
+    u_int64_t       sha_blocks;
+    int             sha_bufCnt;
+} sha256_context;
+
+typedef struct {
+    unsigned char   sha_out[128];   /* results are here, bytes 0...63 */
+    u_int64_t       sha_H[8];
+    u_int64_t       sha_blocks;
+    u_int64_t       sha_blocksMSB;
+    int             sha_bufCnt;
+} sha512_context;
+
+/* no sha384_context, use sha512_context */
+
+/* 256 bit hash, provides 128 bits of security against collision attacks */
+extern void sha256_init(sha256_context *);
+extern void sha256_write(sha256_context *, const unsigned char *, int);
+extern void sha256_final(sha256_context *);
+extern void sha256_hash_buffer(unsigned char *, int, unsigned char *, int);
+
+/* 512 bit hash, provides 256 bits of security against collision attacks */
+extern void sha512_init(sha512_context *);
+extern void sha512_write(sha512_context *, const unsigned char *, int);
+extern void sha512_final(sha512_context *);
+extern void sha512_hash_buffer(unsigned char *, int, unsigned char *, int);
+
+/* 384 bit hash, provides 192 bits of security against collision attacks */
+extern void sha384_init(sha512_context *);
+/* no sha384_write(), use sha512_write() */
+/* no sha384_final(), use sha512_final(), result in ctx->sha_out[0...47]  */
+extern void sha384_hash_buffer(unsigned char *, int, unsigned char *, int);
+#endif /* _SHA2_H */