From 0f923a2aab7baa94c5fef498384151af1cd72cba Mon Sep 17 00:00:00 2001 From: Adrian-Ken Rueegsegger Date: Tue, 20 May 2008 11:41:48 +0800 Subject: [CRYPTO] rmd128: Fix endian problems This patch is based on Sebastian Siewior's patch and fixes endian issues making rmd128 work properly on big-endian machines. Signed-off-by: Adrian-Ken Rueegsegger Acked-by: Sebastian Siewior Signed-off-by: Herbert Xu --- crypto/rmd128.c | 37 +++++++++---------------------------- 1 file changed, 9 insertions(+), 28 deletions(-) (limited to 'crypto/rmd128.c') diff --git a/crypto/rmd128.c b/crypto/rmd128.c index f72d2ce848d..89a535aa6eb 100644 --- a/crypto/rmd128.c +++ b/crypto/rmd128.c @@ -44,7 +44,7 @@ struct rmd128_ctx { #define F4(x, y, z) (y ^ (z & (x ^ y))) /* z ? x : y */ #define ROUND(a, b, c, d, f, k, x, s) { \ - (a) += f((b), (c), (d)) + (x) + (k); \ + (a) += f((b), (c), (d)) + le32_to_cpu(x) + (k); \ (a) = rol32((a), (s)); \ } @@ -218,28 +218,6 @@ static void rmd128_transform(u32 *state, u32 const *in) return; } -static inline void le32_to_cpu_array(u32 *buf, unsigned int words) -{ - while (words--) { - le32_to_cpus(buf); - buf++; - } -} - -static inline void cpu_to_le32_array(u32 *buf, unsigned int words) -{ - while (words--) { - cpu_to_le32s(buf); - buf++; - } -} - -static inline void rmd128_transform_helper(struct rmd128_ctx *ctx) -{ - le32_to_cpu_array(ctx->buffer, sizeof(ctx->buffer) / sizeof(u32)); - rmd128_transform(ctx->state, ctx->buffer); -} - static void rmd128_init(struct crypto_tfm *tfm) { struct rmd128_ctx *rctx = crypto_tfm_ctx(tfm); @@ -272,13 +250,13 @@ static void rmd128_update(struct crypto_tfm *tfm, const u8 *data, memcpy((char *)rctx->buffer + (sizeof(rctx->buffer) - avail), data, avail); - rmd128_transform_helper(rctx); + rmd128_transform(rctx->state, rctx->buffer); data += avail; len -= avail; while (len >= sizeof(rctx->buffer)) { memcpy(rctx->buffer, data, sizeof(rctx->buffer)); - rmd128_transform_helper(rctx); + rmd128_transform(rctx->state, rctx->buffer); data += sizeof(rctx->buffer); len -= sizeof(rctx->buffer); } @@ -290,10 +268,12 @@ static void rmd128_update(struct crypto_tfm *tfm, const u8 *data, static void rmd128_final(struct crypto_tfm *tfm, u8 *out) { struct rmd128_ctx *rctx = crypto_tfm_ctx(tfm); - u32 index, padlen; + u32 i, index, padlen; u64 bits; + u32 *dst = (u32 *)out; static const u8 padding[64] = { 0x80, }; - bits = rctx->byte_count << 3; + + bits = cpu_to_le64(rctx->byte_count << 3); /* Pad out to 56 mod 64 */ index = rctx->byte_count & 0x3f; @@ -304,7 +284,8 @@ static void rmd128_final(struct crypto_tfm *tfm, u8 *out) rmd128_update(tfm, (const u8 *)&bits, sizeof(bits)); /* Store state in digest */ - memcpy(out, rctx->state, sizeof(rctx->state)); + for (i = 0; i < 4; i++) + dst[i] = cpu_to_le32(rctx->state[i]); /* Wipe context */ memset(rctx, 0, sizeof(*rctx)); -- cgit v1.2.3