Keith Winstein
90 lines
2.1 KiB
C++
90 lines
2.1 KiB
C++
/*
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Mosh: the mobile shell
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Copyright 2012 Keith Winstein
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef CRYPTO_HPP
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#define CRYPTO_HPP
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#include "ae.h"
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#include <string>
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#include <string.h>
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#include <stdint.h>
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using std::string;
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long int myatoi( const char *str );
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namespace Crypto {
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class CryptoException {
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public:
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string text;
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CryptoException( string s_text ) : text( s_text ) {};
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};
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class Base64Key {
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private:
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unsigned char key[ 16 ];
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public:
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Base64Key(); /* random key */
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Base64Key( string printable_key );
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string printable_key( void ) const;
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unsigned char *data( void ) { return key; }
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};
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class Nonce {
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private:
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char bytes[ 12 ] __attribute__((__aligned__ (16)));
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public:
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Nonce( uint64_t val );
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Nonce( char *s_bytes, size_t len );
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string cc_str( void ) { return string( (char *)( bytes + 4 ), 8 ); }
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char *data( void ) { return bytes; }
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uint64_t val( void );
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};
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class Message {
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public:
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Nonce nonce;
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string text;
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Message( char *nonce_bytes, size_t nonce_len,
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char *text_bytes, size_t text_len );
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Message( Nonce s_nonce, string s_text );
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};
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class Session {
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private:
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Base64Key key;
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ae_ctx *ctx;
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public:
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Session( Base64Key s_key );
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~Session();
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string encrypt( Message plaintext );
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Message decrypt( string ciphertext );
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Session( const Session & );
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Session & operator=( const Session & );
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};
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}
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#endif
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