当我将字符串转换为获取字节时,它会生成错误 这是
String f= "engineer hussein mawzi hello world";
KeyPairGenerator kpg;
KeyPair kp;
PublicKey publicKey;
PrivateKey privateKey;
byte [] encryptedBytes1,decryptedBytes1;
Cipher cipher,cipher1;
String encrypted1,decrypted1;
kpg = KeyPairGenerator.getInstance("RSA");
kpg.initialize(512);
kp = kpg.genKeyPair();
publicKey = kp.getPublic();
privateKey = kp.getPrivate();
System.out.println("th"+publicKey);
cipher = Cipher.getInstance("RSA");
cipher.init(Cipher.ENCRYPT_MODE, publicKey);
encryptedBytes1= cipher.doFinal(f.getBytes());
encrypted1 = new String(encryptedBytes1);
// here is the message that i wnt to encrypte and send !!!!
System.out.println("here is mu test app"+encrypted1);
System.out.println("EEncrypted?????"+encrypted1.length());
cipher1 = Cipher.getInstance("RSA");
cipher1.init(Cipher.DECRYPT_MODE, privateKey);
// here i want to recover the byte array of the message i extract it and decrypte it
byte[] by = encrypted1.getBytes();
System.out.println(by.length);
decryptedBytes1 = cipher1.doFinal(by);
decrypted1 = new String(decryptedBytes1);
System.out.println("DDecrypted?????" + decrypted1);
System.out.println("DDecrypted?????" + decrypted1.length());
}
最佳答案
您的问题可能与从 byte[]
到 String
的转换有关。并非所有字节都映射到字符,那些未映射的字节会被悄悄删除。仅使用 byte[]
或执行例如Base 64 编码/解码。
关于java - android非对称加密代码错误,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/23228030/