我在android上的spongycastle中使用RSA加密/解密时遇到问题。 enctext包含加密文本,而dectext包含解密后的文本。在调试器中,dectext匹配纯文本消息“test”但是当作为字符串传递给smssend(string,string)函数时,会显示一些未知格式。这是代码。
{
byte[] enctext;
byte[] dectext;
String message="test";
KeyPairGenerator keyGen = KeyPairGenerator.getInstance("RSA", "SC");
SecureRandom random = SecureRandom.getInstance("SHA1PRNG", "SC");
keyGen.initialize(1024, random);
KeyPair pair = keyGen.generateKeyPair();
PrivateKey priv = pair.getPrivate();
PublicKey pub = pair.getPublic();
Cipher rsaCipher = Cipher.getInstance("RSA/ECB/OAEPWithSHA1AndMGF1Padding","SC");
rsaCipher.init(Cipher.ENCRYPT_MODE, pub);
enctext=rsaCipher.doFinal(message.getBytes());
Cipher rsaCipher2 = Cipher.getInstance("RSA/ECB/OAEPWithSHA1AndMGF1Padding","SC");
rsaCipher2.init(Cipher.DECRYPT_MODE, priv);
dectext=rsaCipher2.doFinal(enctext);
sendSMS("5554",dectext.toString());// in debugger dectext shows equivalent "test" values in decimal but when passed as string to sendSMS func it shows some unknown format...
}
private void sendSMS(final String phoneNumber,String message)
{
}
代码有什么问题?是格式问题吗?我应该使用哪种格式?
答案 0 :(得分:0)
而不是
dectext.toString()
你想用
new String(dectext)
此外,在字节和字符串之间进行转换时,应明确指定编码:
message.getBytes("UTF-8")
new String(dectext, "UTF-8")