-/*
+/*
* Cryptographic API
*
* ARC4 Cipher Algorithm
u8 x, y;
};
-static int arc4_set_key(void *ctx_arg, const u8 *in_key, unsigned int key_len, u32 *flags)
+static int arc4_set_key(struct crypto_tfm *tfm, const u8 *in_key,
+ unsigned int key_len)
{
- struct arc4_ctx *ctx = ctx_arg;
+ struct arc4_ctx *ctx = crypto_tfm_ctx(tfm);
int i, j = 0, k = 0;
ctx->x = 1;
ctx->y = 0;
- for(i = 0; i < 256; i++)
+ for (i = 0; i < 256; i++)
ctx->S[i] = i;
- for(i = 0; i < 256; i++)
- {
+ for (i = 0; i < 256; i++) {
u8 a = ctx->S[i];
j = (j + in_key[k] + a) & 0xff;
ctx->S[i] = ctx->S[j];
ctx->S[j] = a;
- if(++k >= key_len)
+ if (++k >= key_len)
k = 0;
}
return 0;
}
-static void arc4_crypt(void *ctx_arg, u8 *out, const u8 *in)
+static void arc4_crypt(struct crypto_tfm *tfm, u8 *out, const u8 *in)
{
- struct arc4_ctx *ctx = ctx_arg;
+ struct arc4_ctx *ctx = crypto_tfm_ctx(tfm);
u8 *const S = ctx->S;
u8 x = ctx->x;
.cra_u = { .cipher = {
.cia_min_keysize = ARC4_MIN_KEY_SIZE,
.cia_max_keysize = ARC4_MAX_KEY_SIZE,
- .cia_setkey = arc4_set_key,
- .cia_encrypt = arc4_crypt,
- .cia_decrypt = arc4_crypt } }
+ .cia_setkey = arc4_set_key,
+ .cia_encrypt = arc4_crypt,
+ .cia_decrypt = arc4_crypt } }
};
static int __init arc4_init(void)