From 87c3be87e9e1d8ec4ad57d0e505099529383dd4a Mon Sep 17 00:00:00 2001 From: Richard Hartmann Date: Tue, 16 Feb 2010 20:29:45 +0800 Subject: crypto: cast6 - Fix checkpatch errors Signed-off-by: Richard Hartmann Signed-off-by: Herbert Xu --- crypto/cast6.c | 122 +++++++++++++++++++++++++++++---------------------------- 1 file changed, 62 insertions(+), 60 deletions(-) diff --git a/crypto/cast6.c b/crypto/cast6.c index 007d02b..e0c15a6 100644 --- a/crypto/cast6.c +++ b/crypto/cast6.c @@ -11,7 +11,7 @@ * under the terms of GNU General Public License as published by the Free * Software Foundation; either version 2 of the License, or (at your option) * any later version. - * + * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA @@ -35,12 +35,12 @@ struct cast6_ctx { u8 Kr[12][4]; }; -#define F1(D,r,m) ( (I = ((m) + (D))), (I=rol32(I,(r))), \ - (((s1[I >> 24] ^ s2[(I>>16)&0xff]) - s3[(I>>8)&0xff]) + s4[I&0xff]) ) -#define F2(D,r,m) ( (I = ((m) ^ (D))), (I=rol32(I,(r))), \ - (((s1[I >> 24] - s2[(I>>16)&0xff]) + s3[(I>>8)&0xff]) ^ s4[I&0xff]) ) -#define F3(D,r,m) ( (I = ((m) - (D))), (I=rol32(I,(r))), \ - (((s1[I >> 24] + s2[(I>>16)&0xff]) ^ s3[(I>>8)&0xff]) - s4[I&0xff]) ) +#define F1(D, r, m) ((I = ((m) + (D))), (I = rol32(I, (r))), \ + (((s1[I >> 24] ^ s2[(I>>16)&0xff]) - s3[(I>>8)&0xff]) + s4[I&0xff])) +#define F2(D, r, m) ((I = ((m) ^ (D))), (I = rol32(I, (r))), \ + (((s1[I >> 24] - s2[(I>>16)&0xff]) + s3[(I>>8)&0xff]) ^ s4[I&0xff])) +#define F3(D, r, m) ((I = ((m) - (D))), (I = rol32(I, (r))), \ + (((s1[I >> 24] + s2[(I>>16)&0xff]) ^ s3[(I>>8)&0xff]) - s4[I&0xff])) static const u32 s1[256] = { 0x30fb40d4, 0x9fa0ff0b, 0x6beccd2f, 0x3f258c7a, 0x1e213f2f, @@ -312,7 +312,7 @@ static const u32 s4[256] = { static const u32 Tm[24][8] = { { 0x5a827999, 0xc95c653a, 0x383650db, 0xa7103c7c, 0x15ea281d, - 0x84c413be, 0xf39dff5f, 0x6277eb00 } , + 0x84c413be, 0xf39dff5f, 0x6277eb00 } , { 0xd151d6a1, 0x402bc242, 0xaf05ade3, 0x1ddf9984, 0x8cb98525, 0xfb9370c6, 0x6a6d5c67, 0xd9474808 } , { 0x482133a9, 0xb6fb1f4a, 0x25d50aeb, 0x94aef68c, 0x0388e22d, @@ -369,7 +369,8 @@ static const u8 Tr[4][8] = { }; /* forward octave */ -static void W(u32 *key, unsigned int i) { +static void W(u32 *key, unsigned int i) +{ u32 I; key[6] ^= F1(key[7], Tr[i % 4][0], Tm[i][0]); key[5] ^= F2(key[6], Tr[i % 4][1], Tm[i][1]); @@ -377,7 +378,7 @@ static void W(u32 *key, unsigned int i) { key[3] ^= F1(key[4], Tr[i % 4][3], Tm[i][3]); key[2] ^= F2(key[3], Tr[i % 4][4], Tm[i][4]); key[1] ^= F3(key[2], Tr[i % 4][5], Tm[i][5]); - key[0] ^= F1(key[1], Tr[i % 4][6], Tm[i][6]); + key[0] ^= F1(key[1], Tr[i % 4][6], Tm[i][6]); key[7] ^= F2(key[0], Tr[i % 4][7], Tm[i][7]); } @@ -393,11 +394,11 @@ static int cast6_setkey(struct crypto_tfm *tfm, const u8 *in_key, if (key_len % 4 != 0) { *flags |= CRYPTO_TFM_RES_BAD_KEY_LEN; return -EINVAL; - } + } + + memset(p_key, 0, 32); + memcpy(p_key, in_key, key_len); - memset (p_key, 0, 32); - memcpy (p_key, in_key, key_len); - key[0] = be32_to_cpu(p_key[0]); /* A */ key[1] = be32_to_cpu(p_key[1]); /* B */ key[2] = be32_to_cpu(p_key[2]); /* C */ @@ -406,18 +407,16 @@ static int cast6_setkey(struct crypto_tfm *tfm, const u8 *in_key, key[5] = be32_to_cpu(p_key[5]); /* F */ key[6] = be32_to_cpu(p_key[6]); /* G */ key[7] = be32_to_cpu(p_key[7]); /* H */ - - for (i = 0; i < 12; i++) { - W (key, 2 * i); - W (key, 2 * i + 1); - + W(key, 2 * i); + W(key, 2 * i + 1); + c->Kr[i][0] = key[0] & 0x1f; c->Kr[i][1] = key[2] & 0x1f; c->Kr[i][2] = key[4] & 0x1f; c->Kr[i][3] = key[6] & 0x1f; - + c->Km[i][0] = key[7]; c->Km[i][1] = key[5]; c->Km[i][2] = key[3]; @@ -428,21 +427,23 @@ static int cast6_setkey(struct crypto_tfm *tfm, const u8 *in_key, } /*forward quad round*/ -static void Q (u32 * block, u8 * Kr, u32 * Km) { +static void Q(u32 *block, u8 *Kr, u32 *Km) +{ u32 I; block[2] ^= F1(block[3], Kr[0], Km[0]); block[1] ^= F2(block[2], Kr[1], Km[1]); block[0] ^= F3(block[1], Kr[2], Km[2]); - block[3] ^= F1(block[0], Kr[3], Km[3]); + block[3] ^= F1(block[0], Kr[3], Km[3]); } /*reverse quad round*/ -static void QBAR (u32 * block, u8 * Kr, u32 * Km) { +static void QBAR(u32 *block, u8 *Kr, u32 *Km) +{ u32 I; - block[3] ^= F1(block[0], Kr[3], Km[3]); - block[0] ^= F3(block[1], Kr[2], Km[2]); - block[1] ^= F2(block[2], Kr[1], Km[1]); - block[2] ^= F1(block[3], Kr[0], Km[0]); + block[3] ^= F1(block[0], Kr[3], Km[3]); + block[0] ^= F3(block[1], Kr[2], Km[2]); + block[1] ^= F2(block[2], Kr[1], Km[1]); + block[2] ^= F1(block[3], Kr[0], Km[0]); } static void cast6_encrypt(struct crypto_tfm *tfm, u8 *outbuf, const u8 *inbuf) @@ -451,64 +452,65 @@ static void cast6_encrypt(struct crypto_tfm *tfm, u8 *outbuf, const u8 *inbuf) const __be32 *src = (const __be32 *)inbuf; __be32 *dst = (__be32 *)outbuf; u32 block[4]; - u32 * Km; - u8 * Kr; + u32 *Km; + u8 *Kr; block[0] = be32_to_cpu(src[0]); block[1] = be32_to_cpu(src[1]); block[2] = be32_to_cpu(src[2]); block[3] = be32_to_cpu(src[3]); - Km = c->Km[0]; Kr = c->Kr[0]; Q (block, Kr, Km); - Km = c->Km[1]; Kr = c->Kr[1]; Q (block, Kr, Km); - Km = c->Km[2]; Kr = c->Kr[2]; Q (block, Kr, Km); - Km = c->Km[3]; Kr = c->Kr[3]; Q (block, Kr, Km); - Km = c->Km[4]; Kr = c->Kr[4]; Q (block, Kr, Km); - Km = c->Km[5]; Kr = c->Kr[5]; Q (block, Kr, Km); - Km = c->Km[6]; Kr = c->Kr[6]; QBAR (block, Kr, Km); - Km = c->Km[7]; Kr = c->Kr[7]; QBAR (block, Kr, Km); - Km = c->Km[8]; Kr = c->Kr[8]; QBAR (block, Kr, Km); - Km = c->Km[9]; Kr = c->Kr[9]; QBAR (block, Kr, Km); - Km = c->Km[10]; Kr = c->Kr[10]; QBAR (block, Kr, Km); - Km = c->Km[11]; Kr = c->Kr[11]; QBAR (block, Kr, Km); + Km = c->Km[0]; Kr = c->Kr[0]; Q(block, Kr, Km); + Km = c->Km[1]; Kr = c->Kr[1]; Q(block, Kr, Km); + Km = c->Km[2]; Kr = c->Kr[2]; Q(block, Kr, Km); + Km = c->Km[3]; Kr = c->Kr[3]; Q(block, Kr, Km); + Km = c->Km[4]; Kr = c->Kr[4]; Q(block, Kr, Km); + Km = c->Km[5]; Kr = c->Kr[5]; Q(block, Kr, Km); + Km = c->Km[6]; Kr = c->Kr[6]; QBAR(block, Kr, Km); + Km = c->Km[7]; Kr = c->Kr[7]; QBAR(block, Kr, Km); + Km = c->Km[8]; Kr = c->Kr[8]; QBAR(block, Kr, Km); + Km = c->Km[9]; Kr = c->Kr[9]; QBAR(block, Kr, Km); + Km = c->Km[10]; Kr = c->Kr[10]; QBAR(block, Kr, Km); + Km = c->Km[11]; Kr = c->Kr[11]; QBAR(block, Kr, Km); dst[0] = cpu_to_be32(block[0]); dst[1] = cpu_to_be32(block[1]); dst[2] = cpu_to_be32(block[2]); dst[3] = cpu_to_be32(block[3]); -} +} -static void cast6_decrypt(struct crypto_tfm *tfm, u8 *outbuf, const u8 *inbuf) { - struct cast6_ctx * c = crypto_tfm_ctx(tfm); +static void cast6_decrypt(struct crypto_tfm *tfm, u8 *outbuf, const u8 *inbuf) +{ + struct cast6_ctx *c = crypto_tfm_ctx(tfm); const __be32 *src = (const __be32 *)inbuf; __be32 *dst = (__be32 *)outbuf; u32 block[4]; - u32 * Km; - u8 * Kr; + u32 *Km; + u8 *Kr; block[0] = be32_to_cpu(src[0]); block[1] = be32_to_cpu(src[1]); block[2] = be32_to_cpu(src[2]); block[3] = be32_to_cpu(src[3]); - Km = c->Km[11]; Kr = c->Kr[11]; Q (block, Kr, Km); - Km = c->Km[10]; Kr = c->Kr[10]; Q (block, Kr, Km); - Km = c->Km[9]; Kr = c->Kr[9]; Q (block, Kr, Km); - Km = c->Km[8]; Kr = c->Kr[8]; Q (block, Kr, Km); - Km = c->Km[7]; Kr = c->Kr[7]; Q (block, Kr, Km); - Km = c->Km[6]; Kr = c->Kr[6]; Q (block, Kr, Km); - Km = c->Km[5]; Kr = c->Kr[5]; QBAR (block, Kr, Km); - Km = c->Km[4]; Kr = c->Kr[4]; QBAR (block, Kr, Km); - Km = c->Km[3]; Kr = c->Kr[3]; QBAR (block, Kr, Km); - Km = c->Km[2]; Kr = c->Kr[2]; QBAR (block, Kr, Km); - Km = c->Km[1]; Kr = c->Kr[1]; QBAR (block, Kr, Km); - Km = c->Km[0]; Kr = c->Kr[0]; QBAR (block, Kr, Km); - + Km = c->Km[11]; Kr = c->Kr[11]; Q(block, Kr, Km); + Km = c->Km[10]; Kr = c->Kr[10]; Q(block, Kr, Km); + Km = c->Km[9]; Kr = c->Kr[9]; Q(block, Kr, Km); + Km = c->Km[8]; Kr = c->Kr[8]; Q(block, Kr, Km); + Km = c->Km[7]; Kr = c->Kr[7]; Q(block, Kr, Km); + Km = c->Km[6]; Kr = c->Kr[6]; Q(block, Kr, Km); + Km = c->Km[5]; Kr = c->Kr[5]; QBAR(block, Kr, Km); + Km = c->Km[4]; Kr = c->Kr[4]; QBAR(block, Kr, Km); + Km = c->Km[3]; Kr = c->Kr[3]; QBAR(block, Kr, Km); + Km = c->Km[2]; Kr = c->Kr[2]; QBAR(block, Kr, Km); + Km = c->Km[1]; Kr = c->Kr[1]; QBAR(block, Kr, Km); + Km = c->Km[0]; Kr = c->Kr[0]; QBAR(block, Kr, Km); + dst[0] = cpu_to_be32(block[0]); dst[1] = cpu_to_be32(block[1]); dst[2] = cpu_to_be32(block[2]); dst[3] = cpu_to_be32(block[3]); -} +} static struct crypto_alg alg = { .cra_name = "cast6", -- cgit v1.1