mirror of
https://github.com/moparisthebest/mailiverse
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67 lines
1.6 KiB
C++
67 lines
1.6 KiB
C++
/*
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* (C) 2009 Jack Lloyd
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*
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* Distributed under the terms of the Botan license
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*/
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#include <botan/botan.h>
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#include <botan/pbkdf2.h>
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#include <botan/hmac.h>
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#include <botan/sha160.h>
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#include <fstream>
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using namespace Botan;
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int main()
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{
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Botan::LibraryInitializer init;
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AutoSeeded_RNG rng;
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std::string passphrase = "secret";
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std::ifstream infile("readme.txt");
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std::ofstream outfile("readme.txt.enc");
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PKCS5_PBKDF2 pbkdf2(new HMAC(new SHA_160));
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const u32bit PBKDF2_ITERATIONS = 8192;
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SecureVector<byte> salt(8);
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rng.randomize(&salt[0], salt.size());
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SecureVector<byte> master_key = pbkdf2.derive_key(48, passphrase,
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&salt[0], salt.size(),
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PBKDF2_ITERATIONS).bits_of();
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KDF* kdf = get_kdf("KDF2(SHA-1)");
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SymmetricKey key = kdf->derive_key(20, master_key, "cipher key");
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SymmetricKey mac_key = kdf->derive_key(20, master_key, "hmac key");
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InitializationVector iv = kdf->derive_key(8, master_key, "cipher iv");
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Pipe pipe(new Fork(
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new Chain(
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get_cipher("Blowfish/CBC/PKCS7", key, iv, ENCRYPTION),
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new Base64_Encoder,
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new DataSink_Stream(outfile)
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),
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new Chain(
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new MAC_Filter("HMAC(SHA-1)", mac_key),
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new Hex_Encoder)
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)
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);
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outfile.write((const char*)salt.begin(), salt.size());
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pipe.start_msg();
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infile >> pipe;
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pipe.end_msg();
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SecureVector<byte> hmac = pipe.read_all(1);
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outfile.write((const char*)hmac.begin(), hmac.size());
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}
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