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https://github.com/mumble-voip/mumble.git
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56db3410c5
Apparently the first commit (59ae429972)
did not include all files.
Furthermore the used script tended to produce funny results in certain
cases. This has been fixed and as a result thereof a few more changes
were made in this second run.
57 lines
1.6 KiB
C++
57 lines
1.6 KiB
C++
// Copyright 2007-2021 The Mumble Developers. All rights reserved.
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// Use of this source code is governed by a BSD-style license
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// that can be found in the LICENSE file at the root of the
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// Mumble source tree or at <https://www.mumble.info/LICENSE>.
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#ifndef MUMBLE_CRYPTSTATE_H_
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#define MUMBLE_CRYPTSTATE_H_
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#include <openssl/aes.h>
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#define AES_KEY_SIZE_BITS 128
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#define AES_KEY_SIZE_BYTES (AES_KEY_SIZE_BITS / 8)
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#include "Timer.h"
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class CryptState {
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private:
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Q_DISABLE_COPY(CryptState)
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public:
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unsigned char raw_key[AES_KEY_SIZE_BYTES];
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unsigned char encrypt_iv[AES_BLOCK_SIZE];
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unsigned char decrypt_iv[AES_BLOCK_SIZE];
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unsigned char decrypt_history[0x100];
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unsigned int uiGood;
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unsigned int uiLate;
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unsigned int uiLost;
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unsigned int uiResync;
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unsigned int uiRemoteGood;
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unsigned int uiRemoteLate;
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unsigned int uiRemoteLost;
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unsigned int uiRemoteResync;
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AES_KEY encrypt_key;
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AES_KEY decrypt_key;
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Timer tLastGood;
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Timer tLastRequest;
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bool bInit;
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CryptState();
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bool isValid() const;
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void genKey();
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void setKey(const unsigned char *rkey, const unsigned char *eiv, const unsigned char *div);
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void setDecryptIV(const unsigned char *iv);
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bool ocb_encrypt(const unsigned char *plain, unsigned char *encrypted, unsigned int len, const unsigned char *nonce,
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unsigned char *tag);
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bool ocb_decrypt(const unsigned char *encrypted, unsigned char *plain, unsigned int len, const unsigned char *nonce,
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unsigned char *tag);
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bool decrypt(const unsigned char *source, unsigned char *dst, unsigned int crypted_length);
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bool encrypt(const unsigned char *source, unsigned char *dst, unsigned int plain_length);
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};
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#endif
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