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(Unicode C) Iterate Keys and Certs in PEMDemonstrates how to access each of the private keys and certs contained within a PEM. Note: This example requires Chilkat v11.0.0 or greater.
#include <C_CkPemW.h> #include <C_CkPrivateKeyW.h> #include <C_CkCertW.h> void ChilkatSample(void) { BOOL success; HCkPemW pem; const wchar_t *password; const wchar_t *pemContent; int numPrivateKeys; int i; HCkPrivateKeyW privKey; HCkCertW cert; int numCerts; success = FALSE; // This example assumes the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. pem = CkPemW_Create(); // Load the PEM from a file. // If the PEM is encrypted, provide a password. Otherwise pass an empty string for the password. password = L"myPassword"; success = CkPemW_LoadPemFile(pem,L"../myPemFiles/myPem.pem",password); if (success == FALSE) { wprintf(L"%s\n",CkPemW_lastErrorText(pem)); CkPemW_Dispose(pem); return; } // Note: If the app already has the PEM pre-loaded in a string variable, then load it // by calling LoadPem instead. pemContent = L"... the PEM contents ..."; success = CkPemW_LoadPem(pem,pemContent,password); // Check for success as before.. // Iterate over the private keys. numPrivateKeys = CkPemW_getNumPrivateKeys(pem); i = 0; privKey = CkPrivateKeyW_Create(); while (i < numPrivateKeys) { CkPemW_PrivateKeyAt(pem,i,privKey); wprintf(L"Private Key %d is %d in length\n",i,CkPrivateKeyW_getBitLength(privKey)); i = i + 1; } // Iterate over the certificates. cert = CkCertW_Create(); numCerts = CkPemW_getNumCerts(pem); i = 0; while (i < numCerts) { CkPemW_CertAt(pem,i,cert); wprintf(L"Certificate %d : %s\n",i,CkCertW_subjectDN(cert)); i = i + 1; } CkPemW_Dispose(pem); CkPrivateKeyW_Dispose(privKey); CkCertW_Dispose(cert); } |
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