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(PHP ActiveX) Convert Java KeyStore to PKCS12 / PFXLoads a Java keystore file and saves it as a PKCS12 / PFX. A Java keystore (JKS) can contain two types of entries: (1) trusted root certificates or (2) private keys + cert chains. Usually a JKS will contain all entries of one type or another (and thus a particular JKS serves one purpose or another; meaning that a JKS containing trusted roots is used as a source for verifying pre-trusted roots, and a JKS containing private keys (and cert chains) is used as a secure, encrypted store for private keys). A PKCS12 / PFX typically contains one or more private keys, along with each private key's certificate chain. Therefore, it typically makes sense to only write the private key entries to a PKCS12 (and the associated certificate chains). If a JKS contains trusted root certificates, it makes more sense to conver it to a PEM file (such as the CA cert bundle in PEM format from mozilla.org).
<?php // This requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.JavaKeyStore') $jks = new COM("Chilkat.JavaKeyStore"); $jksPassword = 'myJksPassword'; // Load the Java keystore from a file. The JKS file password is used // to verify the keyed digest that is found at the very end of the keystore. // It verifies that the keystore has not been modified. $success = $jks->LoadFile($jksPassword,'/someDir/keyStore.jks'); if ($success != 1) { print $jks->LastErrorText . "\n"; exit; } // To convert, we'll access the private key entries // from the JKS, add each to the PKCS12, and then save the PKCS12. // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Pfx') $pkcs12 = new COM("Chilkat.Pfx"); $numPrivateKeys = $jks->NumPrivateKeys; // For each private key entry, get the private key and // the associated certificate chain. // Each private key is password protected. Usually it is the same // password as used for the keyed digest of the entire JKS. // However, this does not have to be. The password is passed // here to handle the possibility of each private key requiring // a different password. $i = 0; while ($i < $numPrivateKeys) { // privKey is a Chilkat.PrivateKey $privKey = $jks->GetPrivateKey($jksPassword,$i); print $jks->getPrivateKeyAlias($i) . "\n"; // certChain is a Chilkat.CertChain $certChain = $jks->GetCertChain($i); // Add the private key and it's associated certificate chain to the PKCS12. $success = $pkcs12->AddPrivateKey($privKey,$certChain); if ($success != 1) { print $pkcs12->LastErrorText . "\n"; exit; } $i = $i + 1; } // Save the PKCS12 / PFX to a file. // The password can be the same as the JKS password, or something new. // (With the PKCS12 format, there is a single password for the entire contents // of the file. With the JKS format, there is flexibility in allowing each private key // to have it's own password.) $pkcs12Password = 'myNewPassword'; $success = $pkcs12->ToFile($pkcs12Password,'/pkcs12_files/myPfx.p12'); if ($success != 1) { print $pkcs12->LastErrorText . "\n"; } else { print 'Successfully saved to PKCS12 format.' . "\n"; } ?> |
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