import org.bouncycastle.crypto.generators.DESKeyGenerator; //导入依赖的package包/类
public void performTest()
{
    DESKeyGenerator keyGen = new DESKeyGenerator();
    
    keyGen.init(new KeyGenerationParameters(new SecureRandom(), 56));
    
    byte[] kB = keyGen.generateKey();
    
    if (kB.length != 8)
    {
        fail("DES bit key wrong length.");
    }
}
 

import org.bouncycastle.crypto.generators.DESKeyGenerator; //导入依赖的package包/类
private byte[] generateKey() {
    SecureRandom random = new SecureRandom();
    random.setSeed(UUID.randomUUID().toString().getBytes());
    KeyGenerationParameters generationParameters = new KeyGenerationParameters(random, DESParameters.DES_KEY_LENGTH * 8);
    DESKeyGenerator generator = new DESKeyGenerator();
    generator.init(generationParameters);
    return Hex.encode(generator.generateKey());
}
 

import org.bouncycastle.crypto.generators.DESKeyGenerator; //导入依赖的package包/类
public KeyGenerator()
{
    super("DES", 64, new DESKeyGenerator());
}