Blame - crypto/aead.h - chromium/src

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estark	03206a1	2015-04-25 04:52:25	[diff] [blame]	1	// Copyright 2015 The Chromium Authors. All rights reserved.
				2	// Use of this source code is governed by a BSD-style license that can be
				3	// found in the LICENSE file.
				4
				5	#ifndef CRYPTO_AEAD_H_
				6	#define CRYPTO_AEAD_H_
				7
avi	dd373b8	2015-12-21 21:34:43	[diff] [blame]	8	#include <stddef.h>
				9
davidben	6004dc5	2017-02-03 04:15:29	[diff] [blame]	10	#include <string>
				11
estark	03206a1	2015-04-25 04:52:25	[diff] [blame]	12	#include "base/strings/string_piece.h"
				13	#include "crypto/crypto_export.h"
				14
				15	struct evp_aead_st;
				16
				17	namespace crypto {
				18
svaldez	22de42fe	2016-04-21 19:42:22	[diff] [blame]	19	// This class exposes the AES-128-CTR-HMAC-SHA256 AEAD.
estark	03206a1	2015-04-25 04:52:25	[diff] [blame]	20	class CRYPTO_EXPORT Aead {
				21	public:
				22	enum AeadAlgorithm { AES_128_CTR_HMAC_SHA256 };
				23
				24	explicit Aead(AeadAlgorithm algorithm);
				25
				26	~Aead();
				27
				28	void Init(const std::string* key);
				29
David Benjamin	cda45eb	2017-11-06 18:16:52	[diff] [blame^]	30	bool Seal(base::StringPiece plaintext,
				31	base::StringPiece nonce,
				32	base::StringPiece additional_data,
estark	03206a1	2015-04-25 04:52:25	[diff] [blame]	33	std::string* ciphertext) const;
				34
David Benjamin	cda45eb	2017-11-06 18:16:52	[diff] [blame^]	35	bool Open(base::StringPiece ciphertext,
				36	base::StringPiece nonce,
				37	base::StringPiece additional_data,
estark	03206a1	2015-04-25 04:52:25	[diff] [blame]	38	std::string* plaintext) const;
				39
				40	size_t KeyLength() const;
				41
				42	size_t NonceLength() const;
				43
				44	private:
				45	const std::string* key_;
				46	const evp_aead_st* aead_;
				47	};
				48
				49	} // namespace crypto
				50
davidben	6004dc5	2017-02-03 04:15:29	[diff] [blame]	51	#endif // CRYPTO_AEAD_H_