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crypto: chacha - constify ctx and iv arguments

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Constify the ctx and iv arguments to crypto_chacha_init() and the
various chacha*_stream_xor() functions.  This makes it clear that they
are not modified.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Eric Biggers
2019-06-02 22:47:14 -07:00
committed by Herbert Xu
parent 76cadf2244
commit 860ab2e502
5 changed files with 6 additions and 6 deletions
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include/crypto/chacha.h
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@@ -41,7 +41,7 @@ static inline void chacha20_block(u32 *state, u8 *stream)
}
void hchacha_block(const u32 *in, u32 *out, int nrounds);
void crypto_chacha_init(u32 *state, struct chacha_ctx *ctx, u8 *iv);
void crypto_chacha_init(u32 *state, const struct chacha_ctx *ctx, const u8 *iv);
int crypto_chacha20_setkey(struct crypto_skcipher *tfm, const u8 *key,
unsigned int keysize);