| // SPDX-License-Identifier: BSD-2-Clause |
| /* LibTomCrypt, modular cryptographic library -- Tom St Denis |
| * |
| * LibTomCrypt is a library that provides various cryptographic |
| * algorithms in a highly modular and flexible manner. |
| * |
| * The library is free for all purposes without any express |
| * guarantee it works. |
| */ |
| |
| #include "tomcrypt_private.h" |
| |
| #ifdef LTC_CHACHA20POLY1305_MODE |
| |
| /** |
| Initialize an ChaCha20Poly1305 context (only the key) |
| @param st [out] The destination of the ChaCha20Poly1305 state |
| @param key The secret key |
| @param keylen The length of the secret key (octets) |
| @return CRYPT_OK if successful |
| */ |
| int chacha20poly1305_init(chacha20poly1305_state *st, const unsigned char *key, unsigned long keylen) |
| { |
| return chacha_setup(&st->chacha, key, keylen, 20); |
| } |
| |
| #endif |
| |
| /* ref: $Format:%D$ */ |
| /* git commit: $Format:%H$ */ |
| /* commit time: $Format:%ai$ */ |
