在Java中生成十六进制的公钥和私钥

import java.security.KeyPair;
import java.security.KeyPairGenerator;
import java.security.KeyFactory;
import java.security.PublicKey;
import java.security.PrivateKey;
import java.security.spec.PKCS8EncodedKeySpec;
import java.security.spec.X509EncodedKeySpec;
import java.util.Base64;

KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance("RSA");
keyPairGenerator.initialize(2048); // 设置密钥长度
KeyPair keyPair = keyPairGenerator.generateKeyPair();
PublicKey publicKey = keyPair.getPublic();
PrivateKey privateKey = keyPair.getPrivate();

// 公钥转换为十六进制字符串
byte[] publicKeyBytes = publicKey.getEncoded();
String publicKeyHex = Base64.getEncoder().encodeToString(publicKeyBytes);

// 私钥转换为十六进制字符串
byte[] privateKeyBytes = privateKey.getEncoded();
String privateKeyHex = Base64.getEncoder().encodeToString(privateKeyBytes);