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authorJens Axboe <axboe@fb.com>2017-03-08 09:10:03 -0700
committerJens Axboe <axboe@fb.com>2017-03-08 09:10:03 -0700
commit82e3f7c44e4090c58ca8d463550e84d011996911 (patch)
tree73a47e57d96077d63e506dd671962e3a4789bf82 /crc
parent8f7630813305a4f4f04a5f9ba20b2a7d486c0cfb (diff)
crc: add support for sha3 variants
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'crc')
-rw-r--r--crc/sha3.c173
-rw-r--r--crc/sha3.h42
-rw-r--r--crc/test.c81
3 files changed, 296 insertions, 0 deletions
diff --git a/crc/sha3.c b/crc/sha3.c
new file mode 100644
index 0000000..2685dce
--- /dev/null
+++ b/crc/sha3.c
@@ -0,0 +1,173 @@
+/*
+ * Cryptographic API.
+ *
+ * SHA-3, as specified in
+ * http://nvlpubs.nist.gov/nistpubs/FIPS/NIST.FIPS.202.pdf
+ *
+ * SHA-3 code by Jeff Garzik <jeff@garzik.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 <string.h>
+#include <inttypes.h>
+
+#include "../os/os.h"
+
+#include "sha3.h"
+
+#define KECCAK_ROUNDS 24
+
+#define ROTL64(x, y) (((x) << (y)) | ((x) >> (64 - (y))))
+
+static const uint64_t keccakf_rndc[24] = {
+ 0x0000000000000001ULL, 0x0000000000008082ULL, 0x800000000000808aULL,
+ 0x8000000080008000ULL, 0x000000000000808bULL, 0x0000000080000001ULL,
+ 0x8000000080008081ULL, 0x8000000000008009ULL, 0x000000000000008aULL,
+ 0x0000000000000088ULL, 0x0000000080008009ULL, 0x000000008000000aULL,
+ 0x000000008000808bULL, 0x800000000000008bULL, 0x8000000000008089ULL,
+ 0x8000000000008003ULL, 0x8000000000008002ULL, 0x8000000000000080ULL,
+ 0x000000000000800aULL, 0x800000008000000aULL, 0x8000000080008081ULL,
+ 0x8000000000008080ULL, 0x0000000080000001ULL, 0x8000000080008008ULL
+};
+
+static const int keccakf_rotc[24] = {
+ 1, 3, 6, 10, 15, 21, 28, 36, 45, 55, 2, 14,
+ 27, 41, 56, 8, 25, 43, 62, 18, 39, 61, 20, 44
+};
+
+static const int keccakf_piln[24] = {
+ 10, 7, 11, 17, 18, 3, 5, 16, 8, 21, 24, 4,
+ 15, 23, 19, 13, 12, 2, 20, 14, 22, 9, 6, 1
+};
+
+/* update the state with given number of rounds */
+
+static void keccakf(uint64_t st[25])
+{
+ int i, j, round;
+ uint64_t t, bc[5];
+
+ for (round = 0; round < KECCAK_ROUNDS; round++) {
+
+ /* Theta */
+ for (i = 0; i < 5; i++)
+ bc[i] = st[i] ^ st[i + 5] ^ st[i + 10] ^ st[i + 15]
+ ^ st[i + 20];
+
+ for (i = 0; i < 5; i++) {
+ t = bc[(i + 4) % 5] ^ ROTL64(bc[(i + 1) % 5], 1);
+ for (j = 0; j < 25; j += 5)
+ st[j + i] ^= t;
+ }
+
+ /* Rho Pi */
+ t = st[1];
+ for (i = 0; i < 24; i++) {
+ j = keccakf_piln[i];
+ bc[0] = st[j];
+ st[j] = ROTL64(t, keccakf_rotc[i]);
+ t = bc[0];
+ }
+
+ /* Chi */
+ for (j = 0; j < 25; j += 5) {
+ for (i = 0; i < 5; i++)
+ bc[i] = st[j + i];
+ for (i = 0; i < 5; i++)
+ st[j + i] ^= (~bc[(i + 1) % 5]) &
+ bc[(i + 2) % 5];
+ }
+
+ /* Iota */
+ st[0] ^= keccakf_rndc[round];
+ }
+}
+
+static void fio_sha3_init(struct fio_sha3_ctx *sctx, unsigned int digest_sz)
+{
+ memset(sctx->st, 0, sizeof(sctx->st));
+ sctx->md_len = digest_sz;
+ sctx->rsiz = 200 - 2 * digest_sz;
+ sctx->rsizw = sctx->rsiz / 8;
+ sctx->partial = 0;
+ memset(sctx->buf, 0, sizeof(sctx->buf));
+}
+
+void fio_sha3_224_init(struct fio_sha3_ctx *sctx)
+{
+ fio_sha3_init(sctx, SHA3_224_DIGEST_SIZE);
+}
+
+void fio_sha3_256_init(struct fio_sha3_ctx *sctx)
+{
+ fio_sha3_init(sctx, SHA3_256_DIGEST_SIZE);
+}
+
+void fio_sha3_384_init(struct fio_sha3_ctx *sctx)
+{
+ fio_sha3_init(sctx, SHA3_384_DIGEST_SIZE);
+}
+
+void fio_sha3_512_init(struct fio_sha3_ctx *sctx)
+{
+ fio_sha3_init(sctx, SHA3_512_DIGEST_SIZE);
+}
+
+int fio_sha3_update(struct fio_sha3_ctx *sctx, const uint8_t *data,
+ unsigned int len)
+{
+ unsigned int done;
+ const uint8_t *src;
+
+ done = 0;
+ src = data;
+
+ if ((sctx->partial + len) > (sctx->rsiz - 1)) {
+ if (sctx->partial) {
+ done = -sctx->partial;
+ memcpy(sctx->buf + sctx->partial, data,
+ done + sctx->rsiz);
+ src = sctx->buf;
+ }
+
+ do {
+ unsigned int i;
+
+ for (i = 0; i < sctx->rsizw; i++)
+ sctx->st[i] ^= ((uint64_t *) src)[i];
+ keccakf(sctx->st);
+
+ done += sctx->rsiz;
+ src = data + done;
+ } while (done + (sctx->rsiz - 1) < len);
+
+ sctx->partial = 0;
+ }
+ memcpy(sctx->buf + sctx->partial, src, len - done);
+ sctx->partial += (len - done);
+
+ return 0;
+}
+
+void fio_sha3_final(struct fio_sha3_ctx *sctx)
+{
+ unsigned int i, inlen = sctx->partial;
+
+ sctx->buf[inlen++] = 0x06;
+ memset(sctx->buf + inlen, 0, sctx->rsiz - inlen);
+ sctx->buf[sctx->rsiz - 1] |= 0x80;
+
+ for (i = 0; i < sctx->rsizw; i++)
+ sctx->st[i] ^= ((uint64_t *) sctx->buf)[i];
+
+ keccakf(sctx->st);
+
+ for (i = 0; i < sctx->rsizw; i++)
+ sctx->st[i] = cpu_to_le64(sctx->st[i]);
+
+ memcpy(sctx->sha, sctx->st, sctx->md_len);
+}
diff --git a/crc/sha3.h b/crc/sha3.h
new file mode 100644
index 0000000..9f1970a
--- /dev/null
+++ b/crc/sha3.h
@@ -0,0 +1,42 @@
+/*
+ * Common values for SHA-3 algorithms
+ */
+#ifndef __CRYPTO_SHA3_H__
+#define __CRYPTO_SHA3_H__
+
+#include <inttypes.h>
+
+#define SHA3_224_DIGEST_SIZE (224 / 8)
+#define SHA3_224_BLOCK_SIZE (200 - 2 * SHA3_224_DIGEST_SIZE)
+
+#define SHA3_256_DIGEST_SIZE (256 / 8)
+#define SHA3_256_BLOCK_SIZE (200 - 2 * SHA3_256_DIGEST_SIZE)
+
+#define SHA3_384_DIGEST_SIZE (384 / 8)
+#define SHA3_384_BLOCK_SIZE (200 - 2 * SHA3_384_DIGEST_SIZE)
+
+#define SHA3_512_DIGEST_SIZE (512 / 8)
+#define SHA3_512_BLOCK_SIZE (200 - 2 * SHA3_512_DIGEST_SIZE)
+
+struct fio_sha3_ctx {
+ uint64_t st[25];
+ unsigned int md_len;
+ unsigned int rsiz;
+ unsigned int rsizw;
+
+ unsigned int partial;
+ uint8_t buf[SHA3_224_BLOCK_SIZE];
+
+ uint8_t *sha;
+};
+
+void fio_sha3_224_init(struct fio_sha3_ctx *sctx);
+void fio_sha3_256_init(struct fio_sha3_ctx *sctx);
+void fio_sha3_384_init(struct fio_sha3_ctx *sctx);
+void fio_sha3_512_init(struct fio_sha3_ctx *sctx);
+
+int fio_sha3_update(struct fio_sha3_ctx *sctx, const uint8_t *data,
+ unsigned int len);
+void fio_sha3_final(struct fio_sha3_ctx *sctx);
+
+#endif
diff --git a/crc/test.c b/crc/test.c
index 78f19ac..368229e 100644
--- a/crc/test.c
+++ b/crc/test.c
@@ -16,6 +16,7 @@
#include "../crc/sha1.h"
#include "../crc/sha256.h"
#include "../crc/sha512.h"
+#include "../crc/sha3.h"
#include "../crc/xxhash.h"
#include "../crc/murmur3.h"
#include "../crc/fnv.h"
@@ -47,6 +48,10 @@ enum {
T_MURMUR3 = 1U << 10,
T_JHASH = 1U << 11,
T_FNV = 1U << 12,
+ T_SHA3_224 = 1U << 13,
+ T_SHA3_256 = 1U << 14,
+ T_SHA3_384 = 1U << 15,
+ T_SHA3_512 = 1U << 16,
};
static void t_md5(struct test_type *t, void *buf, size_t size)
@@ -143,6 +148,62 @@ static void t_sha512(struct test_type *t, void *buf, size_t size)
fio_sha512_update(&ctx, buf, size);
}
+static void t_sha3_224(struct test_type *t, void *buf, size_t size)
+{
+ uint8_t sha[SHA3_224_DIGEST_SIZE];
+ struct fio_sha3_ctx ctx = { .sha = sha };
+ int i;
+
+ fio_sha3_224_init(&ctx);
+
+ for (i = 0; i < NR_CHUNKS; i++) {
+ fio_sha3_update(&ctx, buf, size);
+ fio_sha3_final(&ctx);
+ }
+}
+
+static void t_sha3_256(struct test_type *t, void *buf, size_t size)
+{
+ uint8_t sha[SHA3_256_DIGEST_SIZE];
+ struct fio_sha3_ctx ctx = { .sha = sha };
+ int i;
+
+ fio_sha3_256_init(&ctx);
+
+ for (i = 0; i < NR_CHUNKS; i++) {
+ fio_sha3_update(&ctx, buf, size);
+ fio_sha3_final(&ctx);
+ }
+}
+
+static void t_sha3_384(struct test_type *t, void *buf, size_t size)
+{
+ uint8_t sha[SHA3_384_DIGEST_SIZE];
+ struct fio_sha3_ctx ctx = { .sha = sha };
+ int i;
+
+ fio_sha3_384_init(&ctx);
+
+ for (i = 0; i < NR_CHUNKS; i++) {
+ fio_sha3_update(&ctx, buf, size);
+ fio_sha3_final(&ctx);
+ }
+}
+
+static void t_sha3_512(struct test_type *t, void *buf, size_t size)
+{
+ uint8_t sha[SHA3_512_DIGEST_SIZE];
+ struct fio_sha3_ctx ctx = { .sha = sha };
+ int i;
+
+ fio_sha3_512_init(&ctx);
+
+ for (i = 0; i < NR_CHUNKS; i++) {
+ fio_sha3_update(&ctx, buf, size);
+ fio_sha3_final(&ctx);
+ }
+}
+
static void t_murmur3(struct test_type *t, void *buf, size_t size)
{
int i;
@@ -247,6 +308,26 @@ static struct test_type t[] = {
.fn = t_fnv,
},
{
+ .name = "sha3-224",
+ .mask = T_SHA3_224,
+ .fn = t_sha3_224,
+ },
+ {
+ .name = "sha3-256",
+ .mask = T_SHA3_256,
+ .fn = t_sha3_256,
+ },
+ {
+ .name = "sha3-384",
+ .mask = T_SHA3_384,
+ .fn = t_sha3_384,
+ },
+ {
+ .name = "sha3-512",
+ .mask = T_SHA3_512,
+ .fn = t_sha3_512,
+ },
+ {
.name = NULL,
},
};