diff options
Diffstat (limited to 'lib/crypto/libchacha.c')
-rw-r--r-- | lib/crypto/libchacha.c | 35 |
1 files changed, 0 insertions, 35 deletions
diff --git a/lib/crypto/libchacha.c b/lib/crypto/libchacha.c deleted file mode 100644 index 26862ad90a96..000000000000 --- a/lib/crypto/libchacha.c +++ /dev/null @@ -1,35 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* - * The ChaCha stream cipher (RFC7539) - * - * Copyright (C) 2015 Martin Willi - */ - -#include <crypto/algapi.h> // for crypto_xor_cpy -#include <crypto/chacha.h> -#include <linux/export.h> -#include <linux/kernel.h> -#include <linux/module.h> - -void chacha_crypt_generic(struct chacha_state *state, u8 *dst, const u8 *src, - unsigned int bytes, int nrounds) -{ - /* aligned to potentially speed up crypto_xor() */ - u8 stream[CHACHA_BLOCK_SIZE] __aligned(sizeof(long)); - - while (bytes >= CHACHA_BLOCK_SIZE) { - chacha_block_generic(state, stream, nrounds); - crypto_xor_cpy(dst, src, stream, CHACHA_BLOCK_SIZE); - bytes -= CHACHA_BLOCK_SIZE; - dst += CHACHA_BLOCK_SIZE; - src += CHACHA_BLOCK_SIZE; - } - if (bytes) { - chacha_block_generic(state, stream, nrounds); - crypto_xor_cpy(dst, src, stream, bytes); - } -} -EXPORT_SYMBOL(chacha_crypt_generic); - -MODULE_DESCRIPTION("ChaCha stream cipher (RFC7539)"); -MODULE_LICENSE("GPL"); |