diff options
Diffstat (limited to 'NorthstarDLL/include/crypto/chacha.h')
-rw-r--r-- | NorthstarDLL/include/crypto/chacha.h | 86 |
1 files changed, 43 insertions, 43 deletions
diff --git a/NorthstarDLL/include/crypto/chacha.h b/NorthstarDLL/include/crypto/chacha.h index d29998ff..8de07aa0 100644 --- a/NorthstarDLL/include/crypto/chacha.h +++ b/NorthstarDLL/include/crypto/chacha.h @@ -1,43 +1,43 @@ -/* - * Copyright 2015-2021 The OpenSSL Project Authors. All Rights Reserved. - * - * Licensed under the Apache License 2.0 (the "License"). You may not use - * this file except in compliance with the License. You can obtain a copy - * in the file LICENSE in the source distribution or at - * https://www.openssl.org/source/license.html - */ - -#ifndef OSSL_CRYPTO_CHACHA_H -#define OSSL_CRYPTO_CHACHA_H -# pragma once - -#include <stddef.h> - -/* - * ChaCha20_ctr32 encrypts |len| bytes from |inp| with the given key and - * nonce and writes the result to |out|, which may be equal to |inp|. - * The |key| is not 32 bytes of verbatim key material though, but the - * said material collected into 8 32-bit elements array in host byte - * order. Same approach applies to nonce: the |counter| argument is - * pointer to concatenated nonce and counter values collected into 4 - * 32-bit elements. This, passing crypto material collected into 32-bit - * elements as opposite to passing verbatim byte vectors, is chosen for - * efficiency in multi-call scenarios. - */ -void ChaCha20_ctr32(unsigned char *out, const unsigned char *inp, - size_t len, const unsigned int key[8], - const unsigned int counter[4]); -/* - * You can notice that there is no key setup procedure. Because it's - * as trivial as collecting bytes into 32-bit elements, it's reckoned - * that below macro is sufficient. - */ -#define CHACHA_U8TOU32(p) ( \ - ((unsigned int)(p)[0]) | ((unsigned int)(p)[1]<<8) | \ - ((unsigned int)(p)[2]<<16) | ((unsigned int)(p)[3]<<24) ) - -#define CHACHA_KEY_SIZE 32 -#define CHACHA_CTR_SIZE 16 -#define CHACHA_BLK_SIZE 64 - -#endif +/*
+ * Copyright 2015-2021 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the Apache License 2.0 (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+#ifndef OSSL_CRYPTO_CHACHA_H
+#define OSSL_CRYPTO_CHACHA_H
+# pragma once
+
+#include <stddef.h>
+
+/*
+ * ChaCha20_ctr32 encrypts |len| bytes from |inp| with the given key and
+ * nonce and writes the result to |out|, which may be equal to |inp|.
+ * The |key| is not 32 bytes of verbatim key material though, but the
+ * said material collected into 8 32-bit elements array in host byte
+ * order. Same approach applies to nonce: the |counter| argument is
+ * pointer to concatenated nonce and counter values collected into 4
+ * 32-bit elements. This, passing crypto material collected into 32-bit
+ * elements as opposite to passing verbatim byte vectors, is chosen for
+ * efficiency in multi-call scenarios.
+ */
+void ChaCha20_ctr32(unsigned char *out, const unsigned char *inp,
+ size_t len, const unsigned int key[8],
+ const unsigned int counter[4]);
+/*
+ * You can notice that there is no key setup procedure. Because it's
+ * as trivial as collecting bytes into 32-bit elements, it's reckoned
+ * that below macro is sufficient.
+ */
+#define CHACHA_U8TOU32(p) ( \
+ ((unsigned int)(p)[0]) | ((unsigned int)(p)[1]<<8) | \
+ ((unsigned int)(p)[2]<<16) | ((unsigned int)(p)[3]<<24) )
+
+#define CHACHA_KEY_SIZE 32
+#define CHACHA_CTR_SIZE 16
+#define CHACHA_BLK_SIZE 64
+
+#endif
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