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) Sign a File to Create a .p7s (Detached Signature)Unicode C example to create a detached signature file (.p7s) for any type file. The signature can be verified by calling VerifyP7S and passing the original filename and the .p7s filename.
#include <C_CkCrypt2W.h> #include <C_CkCertStoreW.h> #include <C_CkCertW.h> void ChilkatSample(void) { HCkCrypt2W crypt; const wchar_t *signingCertSubject; const wchar_t *pfxFilename; const wchar_t *pfxPassword; HCkCertStoreW certStore; BOOL success; HCkCertW cert; const wchar_t *inFile; const wchar_t *sigFile; // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. crypt = CkCrypt2W_Create(); // Use a digital certificate and private key from a PFX file (.pfx or .p12). signingCertSubject = L"Acme Inc"; pfxFilename = L"/Users/chilkat/testData/pfx/acme.pfx"; pfxPassword = L"test123"; certStore = CkCertStoreW_Create(); success = CkCertStoreW_LoadPfxFile(certStore,pfxFilename,pfxPassword); if (success != TRUE) { wprintf(L"%s\n",CkCertStoreW_lastErrorText(certStore)); CkCrypt2W_Dispose(crypt); CkCertStoreW_Dispose(certStore); return; } cert = CkCertStoreW_FindCertBySubjectCN(certStore,signingCertSubject); if (CkCertStoreW_getLastMethodSuccess(certStore) == FALSE) { wprintf(L"Failed to find certificate by subject common name.\n"); CkCrypt2W_Dispose(crypt); CkCertStoreW_Dispose(certStore); return; } // Tell the crypt component to use this cert. success = CkCrypt2W_SetSigningCert(crypt,cert); // We can sign any type of file, creating a .p7s as output: inFile = L"/Users/chilkat/testData/pdf/sample.pdf"; sigFile = L"/Users/chilkat/testData/p7s/sample.p7s"; success = CkCrypt2W_CreateP7S(crypt,inFile,sigFile); if (success == FALSE) { wprintf(L"%s\n",CkCrypt2W_lastErrorText(crypt)); CkCertW_Dispose(cert); CkCrypt2W_Dispose(crypt); CkCertStoreW_Dispose(certStore); return; } success = CkCrypt2W_VerifyP7S(crypt,inFile,sigFile); if (success == FALSE) { wprintf(L"%s\n",CkCrypt2W_lastErrorText(crypt)); CkCertW_Dispose(cert); CkCrypt2W_Dispose(crypt); CkCertStoreW_Dispose(certStore); return; } CkCertW_Dispose(cert); wprintf(L"Success!\n"); CkCrypt2W_Dispose(crypt); CkCertStoreW_Dispose(certStore); } |
© 2000-2024 Chilkat Software, Inc. All Rights Reserved.