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// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CRYPTO_OPENPGP_SYMMETRIC_ENCRYPTION_H_
#define CRYPTO_OPENPGP_SYMMETRIC_ENCRYPTION_H_
#pragma once
#include <string>
#include "base/string_piece.h"
#include "crypto/crypto_api.h"
namespace crypto {
// OpenPGPSymmetricEncrytion implements enough of RFC 4880 to read and write
// uncompressed, symmetrically encrypted data. You can create ciphertext
// compatable with this code from the command line with:
// gpg --compress-algo=NONE --cipher-algo=AES -c
//
// Likewise, the output of this can be decrypted on the command line with:
// gpg < input
class CRYPTO_API OpenPGPSymmetricEncrytion {
public:
enum Result {
OK,
UNKNOWN_CIPHER, // you forgot to pass --cipher-algo=AES to gpg
UNKNOWN_HASH,
NOT_SYMMETRICALLY_ENCRYPTED, // it's OpenPGP data, but not correct form
COMPRESSED, // you forgot to pass --compress-algo=NONE
PARSE_ERROR, // it's not OpenPGP data.
INTERNAL_ERROR,
};
static Result Decrypt(base::StringPiece encrypted,
base::StringPiece passphrase,
std::string *out);
static std::string Encrypt(base::StringPiece plaintext,
base::StringPiece passphrase);
};
} // namespace crypto
#endif // CRYPTO_OPENPGP_SYMMETRIC_ENCRYPTION_H_