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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _CRYPTO_INTERNAL_CHACHA_H
#define _CRYPTO_INTERNAL_CHACHA_H
#include <crypto/chacha.h>
#include <crypto/internal/skcipher.h>
#include <linux/crypto.h>
struct chacha_ctx {
u32 key[8];
int nrounds;
};
static inline int chacha_setkey(struct crypto_skcipher *tfm, const u8 *key,
unsigned int keysize, int nrounds)
{
struct chacha_ctx *ctx = crypto_skcipher_ctx(tfm);
int i;
if (keysize != CHACHA_KEY_SIZE)
return -EINVAL;
for (i = 0; i < ARRAY_SIZE(ctx->key); i++)
ctx->key[i] = get_unaligned_le32(key + i * sizeof(u32));
ctx->nrounds = nrounds;
return 0;
}
static inline int chacha20_setkey(struct crypto_skcipher *tfm, const u8 *key,
unsigned int keysize)
{
return chacha_setkey(tfm, key, keysize, 20);
}
static inline int chacha12_setkey(struct crypto_skcipher *tfm, const u8 *key,
unsigned int keysize)
{
return chacha_setkey(tfm, key, keysize, 12);
}
#endif /* _CRYPTO_CHACHA_H */
| Name | Type | Size | Permission | Actions |
|---|---|---|---|---|
| acompress.h | File | 1.8 KB | 0644 |
|
| aead.h | File | 4.13 KB | 0644 |
|
| akcipher.h | File | 3.31 KB | 0644 |
|
| blake2b.h | File | 3.06 KB | 0644 |
|
| blake2s.h | File | 3.43 KB | 0644 |
|
| chacha.h | File | 969 B | 0644 |
|
| cipher.h | File | 6.7 KB | 0644 |
|
| cryptouser.h | File | 453 B | 0644 |
|
| des.h | File | 3.25 KB | 0644 |
|
| engine.h | File | 2.19 KB | 0644 |
|
| geniv.h | File | 702 B | 0644 |
|
| hash.h | File | 6.13 KB | 0644 |
|
| kpp.h | File | 6.54 KB | 0644 |
|
| poly1305.h | File | 1.09 KB | 0644 |
|
| rng.h | File | 1021 B | 0644 |
|
| rsa.h | File | 1.6 KB | 0644 |
|
| scompress.h | File | 3.34 KB | 0644 |
|
| simd.h | File | 2.24 KB | 0644 |
|
| skcipher.h | File | 5.29 KB | 0644 |
|