queerzard

import lombok.*;
import java.security.KeyStore;

public class KeyTool4J {

    @Getter private String certificateOwner = "unknown";
    @Getter private String organizationalUnit = "unknown";
    @Getter private String organizationName = "unknown";
    @Getter private String localityName = "unknown";

queerzard

import java.security.*;
import java.security.spec.X509EncodedKeySpec;
import java.util.Base64;

import javax.crypto.Cipher;

public class E2EE {
    private KeyPair keyPair;
    private String publicKey;
    private String privateKey;

queerzard

    private static String hash(String hashType, String inputHash) throws NoSuchAlgorithmException, IOException {
        MessageDigest messageDigest = MessageDigest.getInstance(hashType);
        messageDigest.update(inputHash.getBytes());

        byte[] digest = messageDigest.digest();
        StringBuffer stringBuffer = new StringBuffer();
        for (byte byt : digest)
            stringBuffer.append(String.format("%02x", byt & 0xff));
        return stringBuffer.toString();
    }