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AES integrated on send side.

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This commit is contained in:
Adam Ierymenko 2020-08-21 14:23:31 -07:00
parent 3fd8efe642
commit 2ac49d99dd
15 changed files with 446 additions and 427 deletions
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74
node/SHA512.hpp
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@ -1,5 +1,5 @@
/*
* Copyright (c)2019 ZeroTier, Inc.
* Copyright (c)2013-2020 ZeroTier, Inc.
*
* Use of this software is governed by the Business Source License included
* in the LICENSE.TXT file in the project's root directory.
@ -14,18 +14,74 @@
#ifndef ZT_SHA512_HPP
#define ZT_SHA512_HPP
#define ZT_SHA512_DIGEST_LEN 64
#include "Constants.hpp"
#ifdef __APPLE__
#include <CommonCrypto/CommonDigest.h>
#endif
#define ZT_SHA512_DIGEST_SIZE 64
#define ZT_SHA384_DIGEST_SIZE 48
#define ZT_SHA512_BLOCK_SIZE 128
#define ZT_SHA384_BLOCK_SIZE 128
#define ZT_HMACSHA384_LEN 48
namespace ZeroTier {
/**
* SHA-512 digest algorithm
*/
class SHA512
// SHA384 and SHA512 are actually in the standard libraries on MacOS and iOS
#ifdef __APPLE__
#define ZT_HAVE_NATIVE_SHA512 1
static ZT_INLINE void SHA512(void *digest,const void *data,unsigned int len)
{
public:
static void hash(void *digest,const void *data,unsigned int len);
};
CC_SHA512_CTX ctx;
CC_SHA512_Init(&ctx);
CC_SHA512_Update(&ctx,data,len);
CC_SHA512_Final(reinterpret_cast<unsigned char *>(digest),&ctx);
}
static ZT_INLINE void SHA384(void *digest,const void *data,unsigned int len)
{
CC_SHA512_CTX ctx;
CC_SHA384_Init(&ctx);
CC_SHA384_Update(&ctx,data,len);
CC_SHA384_Final(reinterpret_cast<unsigned char *>(digest),&ctx);
}
static ZT_INLINE void SHA384(void *digest,const void *data0,unsigned int len0,const void *data1,unsigned int len1)
{
CC_SHA512_CTX ctx;
CC_SHA384_Init(&ctx);
CC_SHA384_Update(&ctx,data0,len0);
CC_SHA384_Update(&ctx,data1,len1);
CC_SHA384_Final(reinterpret_cast<unsigned char *>(digest),&ctx);
}
#endif
#ifndef ZT_HAVE_NATIVE_SHA512
void SHA512(void *digest,const void *data,unsigned int len);
void SHA384(void *digest,const void *data,unsigned int len);
void SHA384(void *digest,const void *data0,unsigned int len0,const void *data1,unsigned int len1);
#endif
/**
* Compute HMAC SHA-384 using a 256-bit key
*
* @param key Secret key
* @param msg Message to HMAC
* @param msglen Length of message
* @param mac Buffer to fill with result
*/
void HMACSHA384(const uint8_t key[ZT_SYMMETRIC_KEY_SIZE],const void *msg,unsigned int msglen,uint8_t mac[48]);
/**
* Compute KBKDF (key-based key derivation function) using HMAC-SHA-384 as a PRF
*
* @param key Source master key
* @param label A label indicating the key's purpose in the ZeroTier system
* @param context An arbitrary "context" or zero if not applicable
* @param iter Key iteration for generation of multiple keys for the same label/context
* @param out Output to receive derived key
*/
void KBKDFHMACSHA384(const uint8_t key[ZT_SYMMETRIC_KEY_SIZE],char label,char context,uint32_t iter,uint8_t out[ZT_SYMMETRIC_KEY_SIZE]);
} // namespace ZeroTier