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-rw-r--r--crypto/sha1.c142
1 files changed, 0 insertions, 142 deletions
diff --git a/crypto/sha1.c b/crypto/sha1.c
deleted file mode 100644
index 1bba551e5b45..000000000000
--- a/crypto/sha1.c
+++ /dev/null
@@ -1,142 +0,0 @@
-/*
- * Cryptographic API.
- *
- * SHA1 Secure Hash Algorithm.
- *
- * Derived from cryptoapi implementation, adapted for in-place
- * scatterlist interface.
- *
- * Copyright (c) Alan Smithee.
- * Copyright (c) Andrew McDonald <andrew@mcdonald.org.uk>
- * Copyright (c) Jean-Francois Dive <jef@linuxbe.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 of the License, or (at your option)
- * any later version.
- *
- */
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/mm.h>
-#include <linux/crypto.h>
-#include <linux/cryptohash.h>
-#include <linux/types.h>
-#include <asm/scatterlist.h>
-#include <asm/byteorder.h>
-
-#define SHA1_DIGEST_SIZE 20
-#define SHA1_HMAC_BLOCK_SIZE 64
-
-struct sha1_ctx {
- u64 count;
- u32 state[5];
- u8 buffer[64];
-};
-
-static void sha1_init(struct crypto_tfm *tfm)
-{
- struct sha1_ctx *sctx = crypto_tfm_ctx(tfm);
- static const struct sha1_ctx initstate = {
- 0,
- { 0x67452301, 0xEFCDAB89, 0x98BADCFE, 0x10325476, 0xC3D2E1F0 },
- { 0, }
- };
-
- *sctx = initstate;
-}
-
-static void sha1_update(struct crypto_tfm *tfm, const u8 *data,
- unsigned int len)
-{
- struct sha1_ctx *sctx = crypto_tfm_ctx(tfm);
- unsigned int partial, done;
- const u8 *src;
-
- partial = sctx->count & 0x3f;
- sctx->count += len;
- done = 0;
- src = data;
-
- if ((partial + len) > 63) {
- u32 temp[SHA_WORKSPACE_WORDS];
-
- if (partial) {
- done = -partial;
- memcpy(sctx->buffer + partial, data, done + 64);
- src = sctx->buffer;
- }
-
- do {
- sha_transform(sctx->state, src, temp);
- done += 64;
- src = data + done;
- } while (done + 63 < len);
-
- memset(temp, 0, sizeof(temp));
- partial = 0;
- }
- memcpy(sctx->buffer + partial, src, len - done);
-}
-
-
-/* Add padding and return the message digest. */
-static void sha1_final(struct crypto_tfm *tfm, u8 *out)
-{
- struct sha1_ctx *sctx = crypto_tfm_ctx(tfm);
- __be32 *dst = (__be32 *)out;
- u32 i, index, padlen;
- __be64 bits;
- static const u8 padding[64] = { 0x80, };
-
- bits = cpu_to_be64(sctx->count << 3);
-
- /* Pad out to 56 mod 64 */
- index = sctx->count & 0x3f;
- padlen = (index < 56) ? (56 - index) : ((64+56) - index);
- sha1_update(tfm, padding, padlen);
-
- /* Append length */
- sha1_update(tfm, (const u8 *)&bits, sizeof(bits));
-
- /* Store state in digest */
- for (i = 0; i < 5; i++)
- dst[i] = cpu_to_be32(sctx->state[i]);
-
- /* Wipe context */
- memset(sctx, 0, sizeof *sctx);
-}
-
-static struct crypto_alg alg = {
- .cra_name = "sha1",
- .cra_driver_name= "sha1-generic",
- .cra_flags = CRYPTO_ALG_TYPE_DIGEST,
- .cra_blocksize = SHA1_HMAC_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct sha1_ctx),
- .cra_module = THIS_MODULE,
- .cra_alignmask = 3,
- .cra_list = LIST_HEAD_INIT(alg.cra_list),
- .cra_u = { .digest = {
- .dia_digestsize = SHA1_DIGEST_SIZE,
- .dia_init = sha1_init,
- .dia_update = sha1_update,
- .dia_final = sha1_final } }
-};
-
-static int __init init(void)
-{
- return crypto_register_alg(&alg);
-}
-
-static void __exit fini(void)
-{
- crypto_unregister_alg(&alg);
-}
-
-module_init(init);
-module_exit(fini);
-
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("SHA1 Secure Hash Algorithm");
-
-MODULE_ALIAS("sha1-generic");