如何将公钥和签名值转换为人类可读的格式

Question

我正在尝试生成可读格式的公钥和签名，可以在rest服务中使用。我编写了以下代码。

public static void  GenearetSignature(String url,String signatureValue,String publicKey){
    KeyPairGenerator keyGen;
    try {
        keyGen = KeyPairGenerator.getInstance("DSA", "SUN");
        SecureRandom random = SecureRandom.getInstance("SHA1PRNG", "SUN");
        keyGen.initialize(1024, random);
        KeyPair pair = keyGen.generateKeyPair();
        PrivateKey priv = pair.getPrivate();
        PublicKey pub = pair.getPublic();
        System.out.println("Priavte key"+priv);
        System.out.println("Public  key");
        Signature dsa = Signature.getInstance("SHA1withDSA", "SUN"); 
        dsa.initSign(priv);
        dsa.update(url.getBytes());
        byte[]  signatureValueArray = dsa.sign();
        signatureValue=new String(signatureValueArray,"UTF8");
        byte[] publicKeyArray=pub.getEncoded();
        publicKey = new String(publicKeyArray);
        System.out.println("publicKey is "+publicKey);
        System.out.println("signatureValue is "+signatureValue);
    } catch (NoSuchAlgorithmException  ex) {
        // TODO Auto-generated catch block
        ex.printStackTrace();
    } catch(Exception e){
        e.printStackTrace();
    }
}

但这不是在生成字母数字值。我怎么能做到这一点。请帮助我

Answer 1

如果你想用十六进制表示字节数组，请使用

javax.xml.bind.DatatypeConverter.printHexBinary(byte[] array)

Answer 2

您可以使用base64进行rest通信。另一个例子是HTTP基本身份验证使用base64编码密码将其放在HTTP头