(C#) PBKDF2 - Derive Key from Password
Demonstrates how to derive a symmetric encryption key from a password using PBKDF2. For more information, see https://www.chilkatsoft.com/key_derivation_pbkdf2.asp
// This example assumes the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.
Chilkat.Crypt2 crypt = new Chilkat.Crypt2();
string pw = "password";
string pwCharset = "utf-8";
// Such as sha256, sha512
string hashAlg = "sha256";
// 16 bytes
string saltHex = "78578E5A5D63CB0668AB39B21C8637FA";
int iterationCount = 100000;
// Derive a 256-bit key from the password.
int outputBitLen = 256;
// The derived key is returned as a hex or base64 encoded string.
// (Note: The salt argument must be a string that also uses
// the same encoding.)
string enc = "hex";
string hexKey = crypt.Pbkdf2(pw,pwCharset,hashAlg,saltHex,iterationCount,outputBitLen,enc);
Debug.WriteLine(hexKey);
// Sample output:
// AE96E261E32792D0FD6F0E72F8E872D046F7DB4C1FA7C83892EC73C49F461B70
|