Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/crypto/sha512.c b/crypto/sha512.c
new file mode 100644
index 0000000..c663438
--- /dev/null
+++ b/crypto/sha512.c
@@ -0,0 +1,362 @@
+/* SHA-512 code by Jean-Luc Cooke <jlcooke@certainkey.com>
+ *
+ * Copyright (c) Jean-Luc Cooke <jlcooke@certainkey.com>
+ * Copyright (c) Andrew McDonald <andrew@mcdonald.org.uk>
+ * Copyright (c) 2003 Kyle McMartin <kyle@debian.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2, or (at your option) any
+ * later version.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+
+#include <linux/mm.h>
+#include <linux/init.h>
+#include <linux/crypto.h>
+
+#include <asm/scatterlist.h>
+#include <asm/byteorder.h>
+
+#define SHA384_DIGEST_SIZE 48
+#define SHA512_DIGEST_SIZE 64
+#define SHA384_HMAC_BLOCK_SIZE 96
+#define SHA512_HMAC_BLOCK_SIZE 128
+
+struct sha512_ctx {
+ u64 state[8];
+ u32 count[4];
+ u8 buf[128];
+ u64 W[80];
+};
+
+static inline u64 Ch(u64 x, u64 y, u64 z)
+{
+ return z ^ (x & (y ^ z));
+}
+
+static inline u64 Maj(u64 x, u64 y, u64 z)
+{
+ return (x & y) | (z & (x | y));
+}
+
+static inline u64 RORu64(u64 x, u64 y)
+{
+ return (x >> y) | (x << (64 - y));
+}
+
+static const u64 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,
+};
+
+#define e0(x) (RORu64(x,28) ^ RORu64(x,34) ^ RORu64(x,39))
+#define e1(x) (RORu64(x,14) ^ RORu64(x,18) ^ RORu64(x,41))
+#define s0(x) (RORu64(x, 1) ^ RORu64(x, 8) ^ (x >> 7))
+#define s1(x) (RORu64(x,19) ^ RORu64(x,61) ^ (x >> 6))
+
+/* H* initial state for SHA-512 */
+#define H0 0x6a09e667f3bcc908ULL
+#define H1 0xbb67ae8584caa73bULL
+#define H2 0x3c6ef372fe94f82bULL
+#define H3 0xa54ff53a5f1d36f1ULL
+#define H4 0x510e527fade682d1ULL
+#define H5 0x9b05688c2b3e6c1fULL
+#define H6 0x1f83d9abfb41bd6bULL
+#define H7 0x5be0cd19137e2179ULL
+
+/* H'* initial state for SHA-384 */
+#define HP0 0xcbbb9d5dc1059ed8ULL
+#define HP1 0x629a292a367cd507ULL
+#define HP2 0x9159015a3070dd17ULL
+#define HP3 0x152fecd8f70e5939ULL
+#define HP4 0x67332667ffc00b31ULL
+#define HP5 0x8eb44a8768581511ULL
+#define HP6 0xdb0c2e0d64f98fa7ULL
+#define HP7 0x47b5481dbefa4fa4ULL
+
+static inline void LOAD_OP(int I, u64 *W, const u8 *input)
+{
+ W[I] = __be64_to_cpu( ((__be64*)(input))[I] );
+}
+
+static inline void BLEND_OP(int I, u64 *W)
+{
+ W[I] = s1(W[I-2]) + W[I-7] + s0(W[I-15]) + W[I-16];
+}
+
+static void
+sha512_transform(u64 *state, u64 *W, const u8 *input)
+{
+ u64 a, b, c, d, e, f, g, h, t1, t2;
+
+ int i;
+
+ /* load the input */
+ for (i = 0; i < 16; i++)
+ LOAD_OP(i, W, input);
+
+ for (i = 16; i < 80; i++) {
+ BLEND_OP(i, W);
+ }
+
+ /* load the state into our registers */
+ a=state[0]; b=state[1]; c=state[2]; d=state[3];
+ e=state[4]; f=state[5]; g=state[6]; h=state[7];
+
+ /* now iterate */
+ for (i=0; i<80; i+=8) {
+ t1 = h + e1(e) + Ch(e,f,g) + sha512_K[i ] + W[i ];
+ t2 = e0(a) + Maj(a,b,c); d+=t1; h=t1+t2;
+ t1 = g + e1(d) + Ch(d,e,f) + sha512_K[i+1] + W[i+1];
+ t2 = e0(h) + Maj(h,a,b); c+=t1; g=t1+t2;
+ t1 = f + e1(c) + Ch(c,d,e) + sha512_K[i+2] + W[i+2];
+ t2 = e0(g) + Maj(g,h,a); b+=t1; f=t1+t2;
+ t1 = e + e1(b) + Ch(b,c,d) + sha512_K[i+3] + W[i+3];
+ t2 = e0(f) + Maj(f,g,h); a+=t1; e=t1+t2;
+ t1 = d + e1(a) + Ch(a,b,c) + sha512_K[i+4] + W[i+4];
+ t2 = e0(e) + Maj(e,f,g); h+=t1; d=t1+t2;
+ t1 = c + e1(h) + Ch(h,a,b) + sha512_K[i+5] + W[i+5];
+ t2 = e0(d) + Maj(d,e,f); g+=t1; c=t1+t2;
+ t1 = b + e1(g) + Ch(g,h,a) + sha512_K[i+6] + W[i+6];
+ t2 = e0(c) + Maj(c,d,e); f+=t1; b=t1+t2;
+ t1 = a + e1(f) + Ch(f,g,h) + sha512_K[i+7] + W[i+7];
+ t2 = e0(b) + Maj(b,c,d); e+=t1; a=t1+t2;
+ }
+
+ state[0] += a; state[1] += b; state[2] += c; state[3] += d;
+ state[4] += e; state[5] += f; state[6] += g; state[7] += h;
+
+ /* erase our data */
+ a = b = c = d = e = f = g = h = t1 = t2 = 0;
+}
+
+static void
+sha512_init(void *ctx)
+{
+ struct sha512_ctx *sctx = ctx;
+ sctx->state[0] = H0;
+ sctx->state[1] = H1;
+ sctx->state[2] = H2;
+ sctx->state[3] = H3;
+ sctx->state[4] = H4;
+ sctx->state[5] = H5;
+ sctx->state[6] = H6;
+ sctx->state[7] = H7;
+ sctx->count[0] = sctx->count[1] = sctx->count[2] = sctx->count[3] = 0;
+ memset(sctx->buf, 0, sizeof(sctx->buf));
+}
+
+static void
+sha384_init(void *ctx)
+{
+ struct sha512_ctx *sctx = ctx;
+ sctx->state[0] = HP0;
+ sctx->state[1] = HP1;
+ sctx->state[2] = HP2;
+ sctx->state[3] = HP3;
+ sctx->state[4] = HP4;
+ sctx->state[5] = HP5;
+ sctx->state[6] = HP6;
+ sctx->state[7] = HP7;
+ sctx->count[0] = sctx->count[1] = sctx->count[2] = sctx->count[3] = 0;
+ memset(sctx->buf, 0, sizeof(sctx->buf));
+}
+
+static void
+sha512_update(void *ctx, const u8 *data, unsigned int len)
+{
+ struct sha512_ctx *sctx = ctx;
+
+ unsigned int i, index, part_len;
+
+ /* Compute number of bytes mod 128 */
+ index = (unsigned int)((sctx->count[0] >> 3) & 0x7F);
+
+ /* Update number of bits */
+ if ((sctx->count[0] += (len << 3)) < (len << 3)) {
+ if ((sctx->count[1] += 1) < 1)
+ if ((sctx->count[2] += 1) < 1)
+ sctx->count[3]++;
+ sctx->count[1] += (len >> 29);
+ }
+
+ part_len = 128 - index;
+
+ /* Transform as many times as possible. */
+ if (len >= part_len) {
+ memcpy(&sctx->buf[index], data, part_len);
+ sha512_transform(sctx->state, sctx->W, sctx->buf);
+
+ for (i = part_len; i + 127 < len; i+=128)
+ sha512_transform(sctx->state, sctx->W, &data[i]);
+
+ index = 0;
+ } else {
+ i = 0;
+ }
+
+ /* Buffer remaining input */
+ memcpy(&sctx->buf[index], &data[i], len - i);
+
+ /* erase our data */
+ memset(sctx->W, 0, sizeof(sctx->W));
+}
+
+static void
+sha512_final(void *ctx, u8 *hash)
+{
+ struct sha512_ctx *sctx = ctx;
+
+ static u8 padding[128] = { 0x80, };
+
+ u32 t;
+ u64 t2;
+ u8 bits[128];
+ unsigned int index, pad_len;
+ int i, j;
+
+ index = pad_len = t = i = j = 0;
+ t2 = 0;
+
+ /* Save number of bits */
+ t = sctx->count[0];
+ bits[15] = t; t>>=8;
+ bits[14] = t; t>>=8;
+ bits[13] = t; t>>=8;
+ bits[12] = t;
+ t = sctx->count[1];
+ bits[11] = t; t>>=8;
+ bits[10] = t; t>>=8;
+ bits[9 ] = t; t>>=8;
+ bits[8 ] = t;
+ t = sctx->count[2];
+ bits[7 ] = t; t>>=8;
+ bits[6 ] = t; t>>=8;
+ bits[5 ] = t; t>>=8;
+ bits[4 ] = t;
+ t = sctx->count[3];
+ bits[3 ] = t; t>>=8;
+ bits[2 ] = t; t>>=8;
+ bits[1 ] = t; t>>=8;
+ bits[0 ] = t;
+
+ /* Pad out to 112 mod 128. */
+ index = (sctx->count[0] >> 3) & 0x7f;
+ pad_len = (index < 112) ? (112 - index) : ((128+112) - index);
+ sha512_update(sctx, padding, pad_len);
+
+ /* Append length (before padding) */
+ sha512_update(sctx, bits, 16);
+
+ /* Store state in digest */
+ for (i = j = 0; i < 8; i++, j += 8) {
+ t2 = sctx->state[i];
+ hash[j+7] = (char)t2 & 0xff; t2>>=8;
+ hash[j+6] = (char)t2 & 0xff; t2>>=8;
+ hash[j+5] = (char)t2 & 0xff; t2>>=8;
+ hash[j+4] = (char)t2 & 0xff; t2>>=8;
+ hash[j+3] = (char)t2 & 0xff; t2>>=8;
+ hash[j+2] = (char)t2 & 0xff; t2>>=8;
+ hash[j+1] = (char)t2 & 0xff; t2>>=8;
+ hash[j ] = (char)t2 & 0xff;
+ }
+
+ /* Zeroize sensitive information. */
+ memset(sctx, 0, sizeof(struct sha512_ctx));
+}
+
+static void sha384_final(void *ctx, u8 *hash)
+{
+ struct sha512_ctx *sctx = ctx;
+ u8 D[64];
+
+ sha512_final(sctx, D);
+
+ memcpy(hash, D, 48);
+ memset(D, 0, 64);
+}
+
+static struct crypto_alg sha512 = {
+ .cra_name = "sha512",
+ .cra_flags = CRYPTO_ALG_TYPE_DIGEST,
+ .cra_blocksize = SHA512_HMAC_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct sha512_ctx),
+ .cra_module = THIS_MODULE,
+ .cra_list = LIST_HEAD_INIT(sha512.cra_list),
+ .cra_u = { .digest = {
+ .dia_digestsize = SHA512_DIGEST_SIZE,
+ .dia_init = sha512_init,
+ .dia_update = sha512_update,
+ .dia_final = sha512_final }
+ }
+};
+
+static struct crypto_alg sha384 = {
+ .cra_name = "sha384",
+ .cra_flags = CRYPTO_ALG_TYPE_DIGEST,
+ .cra_blocksize = SHA384_HMAC_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct sha512_ctx),
+ .cra_module = THIS_MODULE,
+ .cra_list = LIST_HEAD_INIT(sha384.cra_list),
+ .cra_u = { .digest = {
+ .dia_digestsize = SHA384_DIGEST_SIZE,
+ .dia_init = sha384_init,
+ .dia_update = sha512_update,
+ .dia_final = sha384_final }
+ }
+};
+
+MODULE_ALIAS("sha384");
+
+static int __init init(void)
+{
+ int ret = 0;
+
+ if ((ret = crypto_register_alg(&sha384)) < 0)
+ goto out;
+ if ((ret = crypto_register_alg(&sha512)) < 0)
+ crypto_unregister_alg(&sha384);
+out:
+ return ret;
+}
+
+static void __exit fini(void)
+{
+ crypto_unregister_alg(&sha384);
+ crypto_unregister_alg(&sha512);
+}
+
+module_init(init);
+module_exit(fini);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("SHA-512 and SHA-384 Secure Hash Algorithms");
