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dc51f25752
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>
24 lines
484 B
C
24 lines
484 B
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Common values for ARC4 Cipher Algorithm
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*/
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#ifndef _CRYPTO_ARC4_H
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#define _CRYPTO_ARC4_H
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#include <linux/types.h>
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#define ARC4_MIN_KEY_SIZE 1
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#define ARC4_MAX_KEY_SIZE 256
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#define ARC4_BLOCK_SIZE 1
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struct arc4_ctx {
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u32 S[256];
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u32 x, y;
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};
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int arc4_setkey(struct arc4_ctx *ctx, const u8 *in_key, unsigned int key_len);
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void arc4_crypt(struct arc4_ctx *ctx, u8 *out, const u8 *in, unsigned int len);
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#endif /* _CRYPTO_ARC4_H */
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