X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=crypto%2Fsha512.c;h=15eab9db9be410dfe12d990b4bdc2b417e798050;hb=97bf2856c6014879bd04983a3e9dfcdac1e7fe85;hp=c663438322e9bf4691930feede496de45fc5ea44;hpb=f7f1b0f1e2fbadeab12d24236000e778aa9b1ead;p=linux-2.6.git

diff --git a/crypto/sha512.c b/crypto/sha512.c
index c66343832..15eab9db9 100644
--- a/crypto/sha512.c
+++ b/crypto/sha512.c
@@ -17,13 +17,14 @@
 #include <linux/mm.h>
 #include <linux/init.h>
 #include <linux/crypto.h>
+#include <linux/types.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 SHA384_HMAC_BLOCK_SIZE 128
 #define SHA512_HMAC_BLOCK_SIZE 128
 
 struct sha512_ctx {
@@ -160,9 +161,9 @@ sha512_transform(u64 *state, u64 *W, const u8 *input)
 }
 
 static void
-sha512_init(void *ctx)
+sha512_init(struct crypto_tfm *tfm)
 {
-        struct sha512_ctx *sctx = ctx;
+	struct sha512_ctx *sctx = crypto_tfm_ctx(tfm);
 	sctx->state[0] = H0;
 	sctx->state[1] = H1;
 	sctx->state[2] = H2;
@@ -172,13 +173,12 @@ sha512_init(void *ctx)
 	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)
+sha384_init(struct crypto_tfm *tfm)
 {
-        struct sha512_ctx *sctx = ctx;
+	struct sha512_ctx *sctx = crypto_tfm_ctx(tfm);
         sctx->state[0] = HP0;
         sctx->state[1] = HP1;
         sctx->state[2] = HP2;
@@ -188,13 +188,12 @@ sha384_init(void *ctx)
         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)
+sha512_update(struct crypto_tfm *tfm, const u8 *data, unsigned int len)
 {
-        struct sha512_ctx *sctx = ctx;
+	struct sha512_ctx *sctx = crypto_tfm_ctx(tfm);
 
 	unsigned int i, index, part_len;
 
@@ -232,74 +231,42 @@ sha512_update(void *ctx, const u8 *data, unsigned int len)
 }
 
 static void
-sha512_final(void *ctx, u8 *hash)
+sha512_final(struct crypto_tfm *tfm, u8 *hash)
 {
-        struct sha512_ctx *sctx = ctx;
-	
+	struct sha512_ctx *sctx = crypto_tfm_ctx(tfm);
         static u8 padding[128] = { 0x80, };
-
-        u32 t;
-	u64 t2;
-        u8 bits[128];
+	__be64 *dst = (__be64 *)hash;
+	__be32 bits[4];
 	unsigned int index, pad_len;
-	int i, j;
-
-        index = pad_len = t = i = j = 0;
-        t2 = 0;
+	int i;
 
 	/* 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; 
+	bits[3] = cpu_to_be32(sctx->count[0]);
+	bits[2] = cpu_to_be32(sctx->count[1]);
+	bits[1] = cpu_to_be32(sctx->count[2]);
+	bits[0] = cpu_to_be32(sctx->count[3]);
 
 	/* 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);
+	sha512_update(tfm, padding, pad_len);
 
 	/* Append length (before padding) */
-	sha512_update(sctx, bits, 16);
+	sha512_update(tfm, (const u8 *)bits, sizeof(bits));
 
 	/* 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;
-	}
-	
+	for (i = 0; i < 8; i++)
+		dst[i] = cpu_to_be64(sctx->state[i]);
+
 	/* Zeroize sensitive information. */
 	memset(sctx, 0, sizeof(struct sha512_ctx));
 }
 
-static void sha384_final(void *ctx, u8 *hash)
+static void sha384_final(struct crypto_tfm *tfm, u8 *hash)
 {
-        struct sha512_ctx *sctx = ctx;
         u8 D[64];
 
-        sha512_final(sctx, D);
+	sha512_final(tfm, D);
 
         memcpy(hash, D, 48);
         memset(D, 0, 64);
@@ -311,6 +278,7 @@ static struct crypto_alg sha512 = {
         .cra_blocksize  = SHA512_HMAC_BLOCK_SIZE,
         .cra_ctxsize    = sizeof(struct sha512_ctx),
         .cra_module     = THIS_MODULE,
+	.cra_alignmask	= 3,
         .cra_list       = LIST_HEAD_INIT(sha512.cra_list),
         .cra_u          = { .digest = {
                                 .dia_digestsize = SHA512_DIGEST_SIZE,
@@ -325,6 +293,7 @@ static struct crypto_alg sha384 = {
         .cra_flags      = CRYPTO_ALG_TYPE_DIGEST,
         .cra_blocksize  = SHA384_HMAC_BLOCK_SIZE,
         .cra_ctxsize    = sizeof(struct sha512_ctx),
+	.cra_alignmask	= 3,
         .cra_module     = THIS_MODULE,
         .cra_list       = LIST_HEAD_INIT(sha384.cra_list),
         .cra_u          = { .digest = {