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(Unicode C) Export a Certificate's Private Key to Various FormatsLoads a digital certificate and private key from a PFX file (also known as PKCS#12) and exports the private key to various formats: (1) PKCS8 Encrypted, (2) PKCS8 Encrypted PEM, (3) PKCS8 unencrypted, (4) PKCS8 PEM unencrypted, (5) RSA DER unencrypted, (6) RSA PEM unencrypted, (7) XML.
#include <C_CkCertW.h> #include <C_CkPrivateKeyW.h> void ChilkatSample(void) { HCkCertW cert; const wchar_t *pfxFilename; const wchar_t *pfxPassword; BOOL success; HCkPrivateKeyW privKey; const wchar_t *password; const wchar_t *path; cert = CkCertW_Create(); // Load from the PFX file pfxFilename = L"/Users/chilkat/testData/pfx/chilkat_ssl_pwd_is_test.pfx"; pfxPassword = L"test"; // A PFX typically contains certificates in the chain of authentication. // The Chilkat cert object will choose the certificate w/ // private key farthest from the root authority cert. // To access all the certificates in a PFX, use the // Chilkat certificate store object instead. success = CkCertW_LoadPfxFile(cert,pfxFilename,pfxPassword); if (success != TRUE) { wprintf(L"%s\n",CkCertW_lastErrorText(cert)); CkCertW_Dispose(cert); return; } // Get the private key... privKey = CkCertW_ExportPrivateKey(cert); if (CkCertW_getLastMethodSuccess(cert) == FALSE) { wprintf(L"%s\n",CkCertW_lastErrorText(cert)); CkCertW_Dispose(cert); return; } // Export to various formats: password = L"secret"; // PKCS8 Encrypted DER path = L"/Users/chilkat/testData/privkeys/chilkat_pkcs8_enc.der"; success = CkPrivateKeyW_SavePkcs8EncryptedFile(privKey,password,path); if (success != TRUE) { wprintf(L"%s\n",CkPrivateKeyW_lastErrorText(privKey)); CkPrivateKeyW_Dispose(privKey); CkCertW_Dispose(cert); return; } // PKCS8 Encrypted PEM path = L"/Users/chilkat/testData/privkeys/chilkat_pkcs8_enc.pem"; success = CkPrivateKeyW_SavePkcs8EncryptedPemFile(privKey,password,path); if (success != TRUE) { wprintf(L"%s\n",CkPrivateKeyW_lastErrorText(privKey)); CkPrivateKeyW_Dispose(privKey); CkCertW_Dispose(cert); return; } // PKCS8 Unencrypted DER path = L"/Users/chilkat/testData/privkeys/chilkat_pkcs8.der"; success = CkPrivateKeyW_SavePkcs8File(privKey,path); if (success != TRUE) { wprintf(L"%s\n",CkPrivateKeyW_lastErrorText(privKey)); CkPrivateKeyW_Dispose(privKey); CkCertW_Dispose(cert); return; } // PKCS8 Unencrypted PEM path = L"/Users/chilkat/testData/privkeys/chilkat_pkcs8.pem"; success = CkPrivateKeyW_SavePkcs8PemFile(privKey,path); if (success != TRUE) { wprintf(L"%s\n",CkPrivateKeyW_lastErrorText(privKey)); CkPrivateKeyW_Dispose(privKey); CkCertW_Dispose(cert); return; } // RSA DER (unencrypted) path = L"/Users/chilkat/testData/privkeys/chilkat_rsa.der"; success = CkPrivateKeyW_SavePkcs1File(privKey,path); if (success != TRUE) { wprintf(L"%s\n",CkPrivateKeyW_lastErrorText(privKey)); CkPrivateKeyW_Dispose(privKey); CkCertW_Dispose(cert); return; } // RSA PEM (unencrypted) path = L"/Users/chilkat/testData/privkeys/chilkat_rsa.pem"; success = CkPrivateKeyW_SavePemFile(privKey,path); if (success != TRUE) { wprintf(L"%s\n",CkPrivateKeyW_lastErrorText(privKey)); CkPrivateKeyW_Dispose(privKey); CkCertW_Dispose(cert); return; } // XML (unencrypted) path = L"/Users/chilkat/testData/privkeys/chilkat.xml"; success = CkPrivateKeyW_SaveXmlFile(privKey,path); if (success != TRUE) { wprintf(L"%s\n",CkPrivateKeyW_lastErrorText(privKey)); CkPrivateKeyW_Dispose(privKey); CkCertW_Dispose(cert); return; } CkPrivateKeyW_Dispose(privKey); wprintf(L"Private key exported to all formats.\n"); CkCertW_Dispose(cert); } |
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