【发布时间】：2020-12-14 00:58:26
【问题描述】：
使用RSA，想在JAVA中使用公钥加密，在c#中使用公钥和私钥解密。
加密在 java 中工作正常，但在 c# 中解密有这个错误： “连接到系统的设备无法运行”，这是什么意思？
Java加密方式：
static String publickey = "2rRVVVFJRbH/wAPDtnwZwu+nxU+AZ6uXxh/sW+AMCBogg7vndZsnRiHoLttYYPqOyOhfgaBOQogrIfrKL4lipK4m52SBzw/FfcM9DsKs/rYR83tBLiIAfgdnVjF27tZID+HJMFTiI30mALjr7+tfp+2lIACXA1RIKTk7S9pDmX8=";
static String Encrypt(String encodedString) {
try {
byte[] modulusBytes = Base64.getDecoder().decode(publickey);
byte[] exponentBytes = Base64.getDecoder().decode("AQAB");
BigInteger modulus = new BigInteger(1, modulusBytes);
BigInteger exponent = new BigInteger(1, exponentBytes);
RSAPublicKeySpec rsaPubKey = new RSAPublicKeySpec(modulus, exponent);
KeyFactory fact = KeyFactory.getInstance("RSA");
PublicKey pubKey = fact.generatePublic(rsaPubKey);
Cipher cipher = Cipher.getInstance("RSA/ECB/PKCS1Padding");
cipher.init(Cipher.ENCRYPT_MODE, pubKey);
byte[] plainBytes = new String("big kitty dancing").getBytes("UTF-8");
byte[] cipherData = cipher.doFinal(plainBytes);
String encryptedString = Base64.getEncoder().encodeToString(cipherData);
return encryptedString;
} catch (InvalidKeySpecException | NoSuchAlgorithmException | NoSuchPaddingException |
InvalidKeyException | BadPaddingException | IllegalBlockSizeException | UnsupportedEncodingException err) {
}
return "Error";
}
C#解密方法：
static string Decrypt()
{
const int PROVIDER_RSA_FULL = 1;
const string CONTAINER_NAME = "Tracker";
CspParameters cspParams;
cspParams = new CspParameters(PROVIDER_RSA_FULL);
cspParams.KeyContainerName = CONTAINER_NAME;
RSACryptoServiceProvider rsa1 = new RSACryptoServiceProvider(cspParams);
//string str = rsa1.ToXmlString(true);
rsa1.FromXmlString("<RSAKeyValue><Modulus>2rRVVVFJRbH/wAPDtnwZwu+nxU+AZ6uXxh/sW+AMCBogg7vndZsnRiHoLttYYPqOyOhfgaBOQogrIfrKL4lipK4m52SBzw/FfcM9DsKs/rYR83tBLiIAfgdnVjF27tZID+HJMFTiI30mALjr7+tfp+2lIACXA1RIKTk7S9pDmX8=</Modulus><Exponent>AQAB</Exponent><P>+lXMCEwIN/7+eMpBrq87kQppxu3jJBTwztGTfXNaPUTx+A6uqRwug5oHBbSpYXKNDNCBzVm/0VxB3bo4FJx+ZQ==</P><Q>yasOGaJaE9xlF9T2xRuKeG9ZxCiyjhYaYB/mbtL+SIbtkRLi/AxaU4g2Il/UxhxhSXArKxIzV28zktispPJx1Q==</Q><DP>ueRgQIEFUV+fY979a1RgrVHIPpqEI1URhOMH3Q59oiXCcOumM5njyIHmWQxRAzXnG+7xlKXi1PrnRll0L4oOKQ==</DP><DQ>dfEMNgG1HJhwpxdtmqkYuoakwQvsIRzcIAuIAJh1DoWaupWJGk8/JEstHb1d+t7uJrzrAi2KyT/HscH2diE0YQ==</DQ><InverseQ>YoYF9PF6FiC0YngVeaC/eqt/ea8wMYNN3YO1LuzWpcy2exPRj2U0ZbWMvHXMUb4ea2qmhZGx1QlK4ULAuWKpXQ==</InverseQ><D>g1WAWI4pEK9TA7CA2Yyy/2FzzNiu0uQCuE2TZYRNiomo96KQXpxwqAzZLw+VDXfJMypwDMAVZe/SqzSJnFEtZxjdxaEo3VLcZ1mnbIL0vS7D6iFeYutF9kF231165qGd3k2tgymNMMpY7oYKjS11Y6JqWDU0WE5hjS2X35iG6mE=</D></RSAKeyValue>");
string data2Decrypt = "pt0DMKQM34rIp/aw64NBRhj8HZlp31i3Nu/9SP6o2Iwl9plu8k1TDbe04cQRkIDx/h6hsAKM0j13HdauidnEEvtm0yp9WrOMGut2XJUTUxWt5/y4bosm06tYtfw5HnlNHMMBtY22caCppwfdOJbiwp9rwEtWV9tXHU7VMenlVuw=";
byte[] encyrptedBytes = Convert.FromBase64String(data2Decrypt);
//Error occured in this line
byte[] plain = rsa1.Decrypt(encyrptedBytes, false);
string decryptedString = System.Text.Encoding.UTF8.GetString(plain);
return decryptedString;
}
更新：
堆栈跟踪：
at
System.Security.Cryptography.CryptographicException
.ThrowCryptographicException(Int32 hr)
at System.Security.Cryptography.RSACryptoServiceProvider.DecryptKey(SafeKeyHandle
pKeyContext, Byte[] pbEncryptedKey, Int32 cbEncryptedKey, Boolean fOAEP, ObjectHandleOnStack ohRetDecryptedKey)
at System.Security.Cryptography.RSACryptoServiceProvider.Decrypt(Byte[]
rgb, Boolean fOAEP)
at CJSecurity.Program.Decrypt() in C:\CJSecurity\CJSecurity\Program.cs
【问题讨论】：
-
您能提供完整的堆栈跟踪吗？重新创建
PROVIDER_RSA_FULL有点奇怪，因为它已经定义了，我不得不查找它，才发现常量的名称相同。我认为没有其他名为“Tracker”的容器？ -
您使用的是智能卡硬件安全模块 (HSM) 之类的东西吗？您的系统在尝试访问 HSM 时可能会遇到错误。
-
@AxelKemper 不，我没有
标签： java c# encryption public-key-encryption encryption-asymmetric