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
(Unicode C) 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.
#include <C_CkCrypt2W.h> void ChilkatSample(void) { HCkCrypt2W crypt; const wchar_t *plainText; const wchar_t *encryptedText; const wchar_t *decryptedText; // This example assumes the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. crypt = CkCrypt2W_Create(); // Set properties for PBES1 encryption: CkCrypt2W_putCryptAlgorithm(crypt,L"pbes1"); CkCrypt2W_putPbesPassword(crypt,L"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 ) CkCrypt2W_putPbesAlgorithm(crypt,L"rc2"); CkCrypt2W_putKeyLength(crypt,64); // The salt for PBKDF1 is always 8 bytes: CkCrypt2W_SetEncodedSalt(crypt,L"0102030405060708",L"hex"); // A higher iteration count makes the algorithm more // computationally expensive and therefore exhaustive // searches (for breaking the encryption) is more difficult: CkCrypt2W_putIterationCount(crypt,1024); // A hash algorithm needs to be set for PBES1: CkCrypt2W_putHashAlgorithm(crypt,L"sha1"); // Indicate that the encrypted bytes should be returned // as a hex string: CkCrypt2W_putEncodingMode(crypt,L"hex"); plainText = L"To be encrypted."; encryptedText = CkCrypt2W_encryptStringENC(crypt,plainText); wprintf(L"%s\n",encryptedText); // Now decrypt: decryptedText = CkCrypt2W_decryptStringENC(crypt,encryptedText); wprintf(L"%s\n",decryptedText); CkCrypt2W_Dispose(crypt); } |
© 2000-2024 Chilkat Software, Inc. All Rights Reserved.