importjava.security.spec.PKCS8EncodedKeySpec;importjava.security.spec.X509EncodedKeySpec;importjava.io.ByteArrayOutputStream;importjavax.crypto.Cipher;importjava.security.*;importjava.util.*;publicclassRSAUtils
import java.security.NoSuchAlgorithmException; public void generateRSAKeyPair() throws NoSuchAlgorithmException { KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance("RSA"); keyPairGenerator.initialize(2048); // 设置密钥长度 KeyPair keyPair = keyPairGenerator.generateKeyPair(); // 可以将...
* */publicclassRSAUtils {/***//*** 加密算法RSA*/publicstaticfinalString KEY_ALGORITHM = "RSA";/***//*** 签名算法*/publicstaticfinalString SIGNATURE_ALGORITHM = "MD5withRSA";/***//*** 获取公钥的key*/privatestaticfinalString PUBLIC_KEY = "RSAPublicKey";/***//*** 获取私钥的key*/...
public static KeyPair initKey() { return initKey(1024); } /** * 初始化密钥 * * @param keySize * @return */ public static KeyPair initKey(int keySize) { try { KeyPairGenerator keyPairGen = KeyPairGenerator.getInstance(ALGORITHM); keyPairGen.initialize(keySize); return keyPairGen.gene...
* 加密算法RSA */ public static final String KEY_ALGORITHM = "RSA"; /** * 签名算法 */ public static final String SIGNATURE_ALGORITHM = "MD5withRSA"; /** * 获取公钥的key */ private static final String PUBLIC_KEY = "RSAPublicKey"; ...
1. 生成RSA密钥对 首先,我们需要生成RSA密钥对,包括公钥和私钥。 java import java.security.KeyPair; import java.security.KeyPairGenerator; import java.security.NoSuchAlgorithmException; import java.util.Base64; import java.util.HashMap; import java.util.Map; public class RSAUtils { public static fina...
// 密钥类实例化入参 private static final String KEY_ALGORITHM = "RSA"; private static final int KEY_SIZE = 2048; // Cipher类实例化入参 private static final String CIPHER_ALGORITHM = "RSA/ECB/PKCS1Padding"; // 签名类实例化入参 private static final String SIGNATURE_ALGORITHM = "SHA1with...
Java加密算法笔记--RSA算法实现 import java.security.Key; import java.security.KeyFactory; import java.security.KeyPair; import java.security.KeyPairGenerator; import java.security.NoSuchAlgorithmException; import java.security.PrivateKey; import java.security.PublicKey; ...
public class RSAUtils { public static String RSA_ALGORITHM = "RSA"; public static String UTF8 = "UTF-8"; /** * 密钥长度,DSA算法的默认密钥长度是1024 * 密钥长度必须是64的倍数,在512到65536位之间 * */ private static final int KEY_SIZE=1024; public static void main(String[] args) ...
public static final String KEY_ALGORITHM = "RSA"; public static final String SIGNATURE_ALGORITHM = "MD5withRSA"; private static final String PUBLIC_KEY = "RSAPublicKey"; private static final String PRIVATE_KEY = "RSAPrivateKey"; /**