![]() |
Chilkat HOME Android™ AutoIt C C# C++ Chilkat2-Python CkPython Classic ASP DataFlex Delphi DLL Go Java Node.js Objective-C PHP Extension Perl PowerBuilder PowerShell PureBasic Ruby SQL Server Swift Tcl Unicode C Unicode C++ VB.NET VBScript Visual Basic 6.0 Visual FoxPro Xojo Plugin
(Unicode C) RSA OAEP PaddingDemonstrates how to use OAEP padding with the RSA encryption algorithm. More information about OAEP Padding. Note: This example requires Chilkat v11.0.0 or greater.
#include <C_CkRsaW.h> #include <C_CkPublicKeyW.h> void ChilkatSample(void) { BOOL success; HCkRsaW rsa; const wchar_t *pubKeyXml; HCkPublicKeyW pubKey; const wchar_t *plainText; BOOL usePrivateKey; const wchar_t *encryptedStr; success = FALSE; // This example assumes the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. rsa = CkRsaW_Create(); // RSA public key in XML format: pubKeyXml = L"<RSAPublicKey><Modulus>of3im3mRgd2NLXIGoK6uYLg6jj0Ug2b42rnqa5Tbwz2ieFqMJqt+++x2oqLYGurlz49nt+7/785g3XYWqoka4u9c9zul6YubIjnBM72dQy7rEkEfbUxgjcxqXyjZFx+FpaxFUecLu688XEu+9UA42VKiCgcl+E7TrqnfeeYpNXc=</Modulus><Exponent>AQAB</Exponent></RSAPublicKey>"; pubKey = CkPublicKeyW_Create(); success = CkPublicKeyW_LoadFromString(pubKey,pubKeyXml); if (success == FALSE) { wprintf(L"%s\n",CkPublicKeyW_lastErrorText(pubKey)); CkRsaW_Dispose(rsa); CkPublicKeyW_Dispose(pubKey); return; } success = CkRsaW_UsePublicKey(rsa,pubKey); if (success == FALSE) { wprintf(L"%s\n",CkRsaW_lastErrorText(rsa)); CkRsaW_Dispose(rsa); CkPublicKeyW_Dispose(pubKey); return; } // To use Optimal Asymmetric Encryption Padding (OAEP) padding, // simply set the PkcsPadding property to FALSE CkRsaW_putPkcsPadding(rsa,FALSE); // Encrypt a string and return the encrypted data base64-encoded: CkRsaW_putEncodingMode(rsa,L"base64"); plainText = L"RSA Encryption should be easy."; usePrivateKey = FALSE; encryptedStr = CkRsaW_encryptStringENC(rsa,plainText,usePrivateKey); wprintf(L"%s\n",encryptedStr); CkRsaW_Dispose(rsa); CkPublicKeyW_Dispose(pubKey); } |
© 2000-2025 Chilkat Software, Inc. All Rights Reserved.