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(C#) PBKDF2 - Derive Key from PasswordDemonstrates how to derive a symmetric encryption key from a password using PBKDF2. This example matches the results found at this URL: http://www.di-mgt.com.au/cryptoKDFs.html#examplespbkdf
// 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 hexKey; // http://www.di-mgt.com.au/cryptoKDFs.html#examplespbkdf string pw = "password"; string pwCharset = "ansi"; // Hash algorithms may be: sha1, md2, md5, etc. string hashAlg = "sha1"; // The salt should be 8 bytes: string saltHex = "78578E5A5D63CB06"; int iterationCount = 2048; // Derive a 192-bit key from the password. int outputBitLen = 192; // 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"; hexKey = crypt.Pbkdf2(pw,pwCharset,hashAlg,saltHex,iterationCount,outputBitLen,enc); Debug.WriteLine(hexKey); // The output should have this value: // BFDE6BE94DF7E11DD409BCE20A0255EC327CB936FFE9364 |
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