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/*
* @ test
* @ bug 8149411 8007632
* @ summary Get AES key from keystore ( uses SecretKeySpec not SecretKeyFactory )
* @ run main P12SecretKey pkcs12 AES 128
* @ run main P12SecretKey pkcs12 DES 56
* @ run main P12SecretKey pkcs12 DESede 168
*/
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.security.KeyStore;
import java.security.cert.CertificateException;
import java.util.Arrays;
import javax.crypto.KeyGenerator;
import javax.crypto.SecretKey;
public class P12SecretKey {
private static final String ALIAS = "alias" ;
public static void main(String[] args) throws Exception {
P12SecretKey testp12 = new P12SecretKey();
String keystoreType = args[0 ];
String algName = args[1 ];
int keySize = Integer.parseInt(args[2 ]);
testp12.run(keystoreType, algName, keySize);
}
private void run(String keystoreType, String algName, int keySize) throws Exception {
char [] pw = "password" .toCharArray();
KeyStore ks = KeyStore.getInstance(keystoreType);
ks.load(null , pw);
KeyGenerator kg = KeyGenerator.getInstance(algName);
kg.init(keySize);
SecretKey key = kg.generateKey();
KeyStore.SecretKeyEntry ske = new KeyStore.SecretKeyEntry(key);
KeyStore.ProtectionParameter kspp = new KeyStore.PasswordProtection(pw);
ks.setEntry(ALIAS, ske, kspp);
File ksFile = File.createTempFile("test" , ".test" );
try (FileOutputStream fos = new FileOutputStream(ksFile)) {
ks.store(fos, pw);
fos.flush();
}
// now see if we can get it back
try (FileInputStream fis = new FileInputStream(ksFile)) {
KeyStore ks2 = KeyStore.getInstance(keystoreType);
ks2.load(fis, pw);
KeyStore.Entry entry = ks2.getEntry(ALIAS, kspp);
SecretKey keyIn = ((KeyStore.SecretKeyEntry)entry).getSecretKey();
if (Arrays.equals(key.getEncoded(), keyIn.getEncoded())) {
System.err.println("OK: worked just fine with " + keystoreType +
" keystore" );
} else {
System.err.println("ERROR: keys are NOT equal after storing in "
+ keystoreType + " keystore" );
}
}
}
}
Messung V0.5 in Prozent C=94 H=79 G=86
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(vorverarbeitet am 2026-10-11)
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