diff options
| author | Ard Biesheuvel <ard.biesheuvel@linaro.org> | 2019-06-12 18:19:53 +0200 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2019-06-20 14:18:33 +0800 |
| commit | dc51f25752bfcb5f1edbac1ca4ce16af7b3bd507 (patch) | |
| tree | 063eb09177d3abc17deaaae732dd011592f5f573 /include/crypto | |
| parent | 192125ed5ce62afba24312d8e7a0314577565b4a (diff) | |
| download | linux-dc51f25752bfcb5f1edbac1ca4ce16af7b3bd507.tar.bz2 | |
crypto: arc4 - refactor arc4 core code into separate library
Refactor the core rc4 handling so we can move most users to a library
interface, permitting us to drop the cipher interface entirely in a
future patch. This is part of an effort to simplify the crypto API
and improve its robustness against incorrect use.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'include/crypto')
| -rw-r--r-- | include/crypto/arc4.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/crypto/arc4.h b/include/crypto/arc4.h index 5b2c24ab0139..f3c22fe01704 100644 --- a/include/crypto/arc4.h +++ b/include/crypto/arc4.h @@ -6,8 +6,18 @@ #ifndef _CRYPTO_ARC4_H #define _CRYPTO_ARC4_H +#include <linux/types.h> + #define ARC4_MIN_KEY_SIZE 1 #define ARC4_MAX_KEY_SIZE 256 #define ARC4_BLOCK_SIZE 1 +struct arc4_ctx { + u32 S[256]; + u32 x, y; +}; + +int arc4_setkey(struct arc4_ctx *ctx, const u8 *in_key, unsigned int key_len); +void arc4_crypt(struct arc4_ctx *ctx, u8 *out, const u8 *in, unsigned int len); + #endif /* _CRYPTO_ARC4_H */ |