Chilkat HOME .NET Core C# Android™ AutoIt C C# C++ Chilkat2-Python CkPython Classic ASP DataFlex Delphi ActiveX Delphi DLL Go Java Lianja Mono C# Node.js Objective-C PHP ActiveX PHP Extension Perl PowerBuilder PowerShell PureBasic Ruby SQL Server Swift 2 Swift 3,4,5... Tcl Unicode C Unicode C++ VB.NET VBScript Visual Basic 6.0 Visual FoxPro Xojo Plugin
(PHP ActiveX) PBES1 Password-Based Encryption (PBE)Demonstrates how to implement password-based encryption according to the PKCS #5 v2.0: Password-Based Cryptography Standard (published by RSA Laboratories). This example uses PBES1, which ise based on the PBKDF1 function and an underlying block cipher such as RC2, DES, etc.
<?php // This example assumes the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Crypt2') $crypt = new COM("Chilkat.Crypt2"); // Set properties for PBES1 encryption: $crypt->CryptAlgorithm = 'pbes1'; $crypt->PbesPassword = 'mySecretPassword'; // Set the underlying PBE algorithm (and key length): // For PBES1, the underlying algorithm must be either // 56-bit DES or 64-bit RC2 // (this is according to the PKCS#5 specifications at // http://www.rsa.com/rsalabs/node.asp?id=2127 ) $crypt->PbesAlgorithm = 'rc2'; $crypt->KeyLength = 64; // The salt for PBKDF1 is always 8 bytes: $crypt->SetEncodedSalt('0102030405060708','hex'); // A higher iteration count makes the algorithm more // computationally expensive and therefore exhaustive // searches (for breaking the encryption) is more difficult: $crypt->IterationCount = 1024; // A hash algorithm needs to be set for PBES1: $crypt->HashAlgorithm = 'sha1'; // Indicate that the encrypted bytes should be returned // as a hex string: $crypt->EncodingMode = 'hex'; $plainText = 'To be encrypted.'; $encryptedText = $crypt->encryptStringENC($plainText); print $encryptedText . "\n"; // Now decrypt: $decryptedText = $crypt->decryptStringENC($encryptedText); print $decryptedText . "\n"; ?> |
© 2000-2024 Chilkat Software, Inc. All Rights Reserved.