PowerBuilder

PBKDF1 - Derive Key from Password

See more Encryption Examples

Demonstrates how to derive a symmetric encryption key from a password using PBKDF1. This example matches the results found at this URL: http://www.di-mgt.com.au/cryptoKDFs.html#examplespbkdf

It also matches the output produced by the .NET Framework using this C# code:

            byte[] salt = new byte[] { 0x78, 0x57, 0x8E, 0x5A, 0x5D, 0x63, 0xCB, 0x06 };
            PasswordDeriveBytes cdk = new PasswordDeriveBytes("password", salt);

            cdk.IterationCount = 1000;
            cdk.HashName = "SHA1";

            // generate a 16-byte key
            byte[] key = cdk.GetBytes(16);

PowerBuilder

integer li_rc
oleobject loo_Crypt
string ls_HexKey
string ls_Pw
string ls_PwCharset
string ls_HashAlg
string ls_SaltHex
integer li_IterationCount
integer li_OutputBitLen
string ls_Enc

// This example assumes the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

loo_Crypt = create oleobject
li_rc = loo_Crypt.ConnectToNewObject("Chilkat.Crypt2")
if li_rc < 0 then
    destroy loo_Crypt
    MessageBox("Error","Connecting to COM object failed")
    return
end if

// http://www.di-mgt.com.au/cryptoKDFs.html#examplespbkdf

ls_Pw = "password"
ls_PwCharset = "ansi"
// Hash algorithms may be: sha1, md2, md5, etc.
ls_HashAlg = "sha1"
// The salt should be 8 bytes:
ls_SaltHex = "78578E5A5D63CB06"
li_IterationCount = 1000
// Derive a 128-bit key from the password.
li_OutputBitLen = 128

// 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.)
ls_Enc = "hex"

ls_HexKey = loo_Crypt.Pbkdf1(ls_Pw,ls_PwCharset,ls_HashAlg,ls_SaltHex,li_IterationCount,li_OutputBitLen,ls_Enc)

Write-Debug ls_HexKey

// The output should have this value:
// DC19847E05C64D2FAF10EBFB4A3D2A2


destroy loo_Crypt