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c++cryptographycrypto++pbkdf2

PBKDF in Crypto++

I have following code in C#

PasswordDeriveBytes DerivedPassword = new PasswordDeriveBytes(Password, SaltValueBytes, 
                                              HashAlgorithm, PasswordIterations);
byte[] KeyBytes = DerivedPassword.GetBytes(32);

.Net's PasswordDeriveBytes uses PBKDF1. I am using "SHA1" hashing algorithm to generate 32 byte key.

Kindly tell me how I can achieve this in crypto++. In crypto++ using PBKDF2 its generate 20 byte key. How can I make 32 byte key which C# generating.

Solution

  • You can't, because PasswordDerivedBytes is not standard PBKDF1, while the crypto++ implementation is. Use the PBKDF2 implementation instead (Rfc2898DeriveBytes in .NET).