andre@0: /*
andre@0:  * chacha20.h - header file for ChaCha20 implementation.
andre@0:  *
andre@0:  * This Source Code Form is subject to the terms of the Mozilla Public
andre@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
andre@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
andre@0: 
andre@0: #ifndef FREEBL_CHACHA20_H_
andre@0: #define FREEBL_CHACHA20_H_
andre@0: 
andre@0: #include <stdint.h>
andre@0: 
andre@0: /* ChaCha20XOR encrypts |inLen| bytes from |in| with the given key and
andre@0:  * nonce and writes the result to |out|, which may be equal to |in|. The
andre@0:  * initial block counter is specified by |counter|. */
andre@0: extern void ChaCha20XOR(unsigned char *out,
andre@0: 			const unsigned char *in, unsigned int inLen,
andre@0: 			const unsigned char key[32],
andre@0: 			const unsigned char nonce[8],
andre@0: 			uint64_t counter);
andre@0: 
andre@0: #endif  /* FREEBL_CHACHA20_H_ */