取决于加载的私钥文件是哪种类型,这点很容易验证,调试java代码就可以获知,朋友提供的私钥文件是实现了sun.security.rsa.RSAPrivateCrtKeyImpl的RSAPrivateCrtKey类,所以它会执行crtCrypt方法。 privatestaticbyte[] crtCrypt(byte[] msg, RSAPrivateCrtKey key)throwsBadPaddingException { BigInteger n=key.getModulus();...
RSAPublicKey publicKey = (RSAPublicKey) keyPair.getPublic(); // 得到公钥 String publicKeyString = new String(Base64.encodeBase64(publicKey.getEncoded())); // 得到私钥字符串 String privateKeyString = new String(Base64.encodeBase64((privateKey.getEncoded())); // 将公钥和私钥保存到Map keyM...
publicstaticPrivateKeygetPrivateKey(StringprivateKey)throwsException{KeyFactorykeyFactory=KeyFactory.getInstance("RSA");byte[]keyBytes=Base64.getDecoder().decode(privateKey);PKCS8EncodedKeySpeckeySpec=newPKCS8EncodedKeySpec(keyBytes);returnkeyFactory.generatePrivate(keySpec);} 1. 2. 3. 4. 5. 6. 7....
*/privatestaticfinalintMAX_DECRYPT_BLOCK=128;publicstaticbyte[] decryptBASE64(String key) {returnBase64.decode(key, Base64.NO_WRAP);// return Base64.getDecoder().decode(key);}publicstaticStringencryptBASE64(byte[] bytes){returnBase64.encodeToString(bytes, Base64.NO_WRAP);// return Base64....
byte[] encryptedBytes = Base64.getDecoder().decode(encryptedData); 使用RSA私钥进行解密操作: 使用Cipher类进行解密操作,并将解密后的字节数组转换为字符串。 java public static String decryptByPrivateKey(String encryptedData, String privateKeyBase64) throws Exception { PrivateKey privateKey = loadPrivate...
运行 AI代码解释 importjava.io.ByteArrayOutputStream;importjava.io.UnsupportedEncodingException;importjava.net.URLDecoder;importjava.net.URLEncoder;importjava.security.KeyFactory;importjava.security.KeyPair;importjava.security.KeyPairGenerator;import
PublicKey publicKey = keyFactory.generatePublic(keySpec);return publicKey;} public static PrivateKey getPrivateKey(String key) throws Exception { byte[] keyBytes;keyBytes = (new BASE64Decoder()).decodeBuffer(key);PKCS8EncodedKeySpec keySpec = new PKCS8EncodedKeySpec(keyBytes);KeyFactory ...
import com.ibm.crypto.fips.provider.RSAPrivateKey; import com.ibm.misc.BASE64Decoder; public class GetPrivateKey { public static RSAPrivateKey get() throws Exception { File privateKeyFile = new File("privatekey.key"); byte[] encodedKey = new byte[(int) privateKeyFile.length()]; ...
1 完整代码：import java.security.Key;import java.security.KeyPair;import java.security.KeyPairGenerator;import java.security.interfaces.RSAPrivateKey;import java.security.interfaces.RSAPublicKey;import java.util.HashMap;import java.util.Map;import sun.misc.BASE64Decoder; import sun.misc.BASE64Encoder;...
import sun.misc.BASE64Decoder; import sun.misc.BASE64Encoder; import java.security.interfaces.RSAPrivateKey; import java.security.interfaces.RSAPublicKey; import javax.crypto.Cipher; import java.security.KeyFactory; import java.security.Security; ...