diff --git a/src/CryptState.h b/src/CryptState.h
deleted file mode 100644
index 5f150e5f71..0000000000
--- a/src/CryptState.h
+++ /dev/null
@@ -1,56 +0,0 @@
-// Copyright 2007-2023 The Mumble Developers. All rights reserved.
-// Use of this source code is governed by a BSD-style license
-// that can be found in the LICENSE file at the root of the
-// Mumble source tree or at <https://www.mumble.info/LICENSE>.
-
-#ifndef MUMBLE_CRYPTSTATE_H_
-#define MUMBLE_CRYPTSTATE_H_
-
-#include <openssl/aes.h>
-
-#define AES_KEY_SIZE_BITS 128
-#define AES_KEY_SIZE_BYTES (AES_KEY_SIZE_BITS / 8)
-
-#include "Timer.h"
-
-class CryptState {
-private:
-	Q_DISABLE_COPY(CryptState)
-public:
-	unsigned char raw_key[AES_KEY_SIZE_BYTES];
-	unsigned char encrypt_iv[AES_BLOCK_SIZE];
-	unsigned char decrypt_iv[AES_BLOCK_SIZE];
-	unsigned char decrypt_history[0x100];
-
-	unsigned int uiGood;
-	unsigned int uiLate;
-	unsigned int uiLost;
-	unsigned int uiResync;
-
-	unsigned int uiRemoteGood;
-	unsigned int uiRemoteLate;
-	unsigned int uiRemoteLost;
-	unsigned int uiRemoteResync;
-
-	AES_KEY encrypt_key;
-	AES_KEY decrypt_key;
-	Timer tLastGood;
-	Timer tLastRequest;
-	bool bInit;
-	CryptState();
-
-	bool isValid() const;
-	void genKey();
-	void setKey(const unsigned char *rkey, const unsigned char *eiv, const unsigned char *div);
-	void setDecryptIV(const unsigned char *iv);
-
-	bool ocb_encrypt(const unsigned char *plain, unsigned char *encrypted, unsigned int len, const unsigned char *nonce,
-					 unsigned char *tag);
-	bool ocb_decrypt(const unsigned char *encrypted, unsigned char *plain, unsigned int len, const unsigned char *nonce,
-					 unsigned char *tag);
-
-	bool decrypt(const unsigned char *source, unsigned char *dst, unsigned int crypted_length);
-	bool encrypt(const unsigned char *source, unsigned char *dst, unsigned int plain_length);
-};
-
-#endif