From d00e708cef16442cabaf23f653baf924f5d66e83 Mon Sep 17 00:00:00 2001 From: Atsushi Nemoto Date: Thu, 6 Apr 2006 03:26:01 +1000 Subject: [CRYPTO] khazad: Use 32-bit reads on key On 64-bit platform, reading 64-bit keys (which is supposed to be 32-bit aligned) at a time will result in unaligned access. Signed-off-by: Atsushi Nemoto Signed-off-by: Herbert Xu --- crypto/khazad.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'crypto/khazad.c') diff --git a/crypto/khazad.c b/crypto/khazad.c index 807f2bf4ea24..5b8dc9a2d374 100644 --- a/crypto/khazad.c +++ b/crypto/khazad.c @@ -758,7 +758,7 @@ static int khazad_setkey(void *ctx_arg, const u8 *in_key, unsigned int key_len, u32 *flags) { struct khazad_ctx *ctx = ctx_arg; - const __be64 *key = (const __be64 *)in_key; + const __be32 *key = (const __be32 *)in_key; int r; const u64 *S = T7; u64 K2, K1; @@ -769,8 +769,9 @@ static int khazad_setkey(void *ctx_arg, const u8 *in_key, return -EINVAL; } - K2 = be64_to_cpu(key[0]); - K1 = be64_to_cpu(key[1]); + /* key is supposed to be 32-bit aligned */ + K2 = ((u64)be32_to_cpu(key[0]) << 32) | be32_to_cpu(key[1]); + K1 = ((u64)be32_to_cpu(key[2]) << 32) | be32_to_cpu(key[3]); /* setup the encrypt key */ for (r = 0; r <= KHAZAD_ROUNDS; r++) { -- cgit v1.2.1