/* * Common values for the ChaCha20 algorithm */ #ifndef _CRYPTO_CHACHA20_H #define _CRYPTO_CHACHA20_H #include #include #define CHACHA20_IV_SIZE 16 #define CHACHA20_KEY_SIZE 32 #define CHACHA20_BLOCK_SIZE 64 struct chacha20_ctx { u32 key[8]; }; void chacha20_block(u32 *state, void *stream); void crypto_chacha20_init(u32 *state, struct chacha20_ctx *ctx, u8 *iv); int crypto_chacha20_setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int keysize); int crypto_chacha20_crypt(struct blkcipher_desc *desc, struct scatterlist *dst, struct scatterlist *src, unsigned int nbytes); #endif t'>
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