#include <linux/module.h>
#include <linux/mm.h>
#include <linux/crypto.h>
+#include <linux/types.h>
#include <asm/scatterlist.h>
#include <asm/byteorder.h>
memset(W, 0, 64 * sizeof(u32));
}
-static void sha256_init(void *ctx)
+static void sha256_init(struct crypto_tfm *tfm)
{
- struct sha256_ctx *sctx = ctx;
+ struct sha256_ctx *sctx = crypto_tfm_ctx(tfm);
sctx->state[0] = H0;
sctx->state[1] = H1;
sctx->state[2] = H2;
sctx->state[6] = H6;
sctx->state[7] = H7;
sctx->count[0] = sctx->count[1] = 0;
- memset(sctx->buf, 0, sizeof(sctx->buf));
}
-static void sha256_update(void *ctx, const u8 *data, unsigned int len)
+static void sha256_update(struct crypto_tfm *tfm, const u8 *data,
+ unsigned int len)
{
- struct sha256_ctx *sctx = ctx;
+ struct sha256_ctx *sctx = crypto_tfm_ctx(tfm);
unsigned int i, index, part_len;
/* Compute number of bytes mod 128 */
memcpy(&sctx->buf[index], &data[i], len-i);
}
-static void sha256_final(void* ctx, u8 *out)
+static void sha256_final(struct crypto_tfm *tfm, u8 *out)
{
- struct sha256_ctx *sctx = ctx;
- u8 bits[8];
- unsigned int index, pad_len, t;
- int i, j;
+ struct sha256_ctx *sctx = crypto_tfm_ctx(tfm);
+ __be32 *dst = (__be32 *)out;
+ __be32 bits[2];
+ unsigned int index, pad_len;
+ int i;
static const u8 padding[64] = { 0x80, };
/* Save number of bits */
- t = sctx->count[0];
- bits[7] = t; t >>= 8;
- bits[6] = t; t >>= 8;
- bits[5] = t; t >>= 8;
- bits[4] = t;
- t = sctx->count[1];
- bits[3] = t; t >>= 8;
- bits[2] = t; t >>= 8;
- bits[1] = t; t >>= 8;
- bits[0] = t;
+ bits[1] = cpu_to_be32(sctx->count[0]);
+ bits[0] = cpu_to_be32(sctx->count[1]);
/* Pad out to 56 mod 64. */
index = (sctx->count[0] >> 3) & 0x3f;
pad_len = (index < 56) ? (56 - index) : ((64+56) - index);
- sha256_update(sctx, padding, pad_len);
+ sha256_update(tfm, padding, pad_len);
/* Append length (before padding) */
- sha256_update(sctx, bits, 8);
+ sha256_update(tfm, (const u8 *)bits, sizeof(bits));
/* Store state in digest */
- for (i = j = 0; i < 8; i++, j += 4) {
- t = sctx->state[i];
- out[j+3] = t; t >>= 8;
- out[j+2] = t; t >>= 8;
- out[j+1] = t; t >>= 8;
- out[j ] = t;
- }
+ for (i = 0; i < 8; i++)
+ dst[i] = cpu_to_be32(sctx->state[i]);
/* Zeroize sensitive information. */
memset(sctx, 0, sizeof(*sctx));
.cra_blocksize = SHA256_HMAC_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct sha256_ctx),
.cra_module = THIS_MODULE,
+ .cra_alignmask = 3,
.cra_list = LIST_HEAD_INIT(alg.cra_list),
.cra_u = { .digest = {
.dia_digestsize = SHA256_DIGEST_SIZE,