summaryrefslogtreecommitdiff
path: root/lib/crypto/libchacha.c
diff options
context:
space:
mode:
Diffstat (limited to 'lib/crypto/libchacha.c')
-rw-r--r--lib/crypto/libchacha.c35
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");