crypto++

So I'm trying to use PBKDF2 to derive a key given a base64 string of 256bits. I am able to use C#'s Rfc2898DeriveBytes and node-crypto's pbkdf2 to derive the same key, however, I can't say the same for C++. I'm not sure if I'm doing wrong conversions or using the functions improperly, but I'll let you guys look at it. C++ /* 256bit key */ string key = "Y1Mjycd0+O+AendY5pB58JMlmS0EmBWgjdj2r2KW6qQ="; string decodedKey; StringSource(key, true, new Base64Decoder(new StringSink(decodedKey))); const byte* keyByte = (const byte*) decodedKey.data(); /* Generate IV */ /* AutoSeededRandomPool prng; byte

I am writing a code to encrypt and decrypt with crypto++ library .I found a code to encrypt and decrypt which is shown below.The code works OK as one program.but when I divide into two c++ programs (One for encryption and another for decryption) the decryption pargram gives me error terminate called after throwing an instance of 'CryptoPP::InvalidCiphertext' what(): StreamTransformationFilter: ciphertext length is not a multiple of block size The ciphertext I get after encryption is ���z=(f�����P%���2��W3�p�H�����^��@C��#������bp���nx�� which I transfer into the decryption code. What am I

I'd like to use some cryptographic operations (mainly integrty check hashsums). However I have problems with finding documentations of doing operations of such form: bool read(std::istream &in) { hasher hv(in); // Do some operations on hv as if it was std::istream hash_type h = hv.finish (); hash_type h2 = read_hash(in); return h == h2; } PS. It may be different library provided it a) is GPL-3-compatible b) works on GNU/Linux PPS. I don't insist on crypto++ however I would like to have IOStream-like behaviour for interoperability with other C++ libraries. Implement your own istream using

I have my AES 256 encryption method implemented and working fine in Java as follows! private static final byte[] IV = { 0, 2, 4, 8, 16, 32, 64, 127, 127, 64, 32, 16, 8, 4, 2, 0 }; //actual encryption over here private static byte[] encrypt(byte[] raw, byte[] clear) throws Exception { SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES"); Cipher cipher = null; if(isIVUsedForCrypto) { cipher = Cipher.getInstance("AES/CBC/PKCS5Padding"); cipher.init(Cipher.ENCRYPT_MODE, skeySpec, new IvParameterSpec(IV)); } else { cipher = Cipher.getInstance("AES"); cipher.init(Cipher.ENCRYPT_MODE, skeySpec); }