我正在使用以下方法在WCF Web服务中对请求和响应进行加密和解密:
public static string Decrypt(string textToDecrypt, string key)
{
System.Text.UTF8Encoding encoding = new System.Text.UTF8Encoding();
RijndaelManaged rijndaelCipher = new RijndaelManaged();
rijndaelCipher.Mode = CipherMode.CBC;
rijndaelCipher.Padding = PaddingMode.PKCS7;
rijndaelCipher.KeySize = 0x80;
rijndaelCipher.BlockSize = 0x80;
string decodedUrl = HttpUtility.UrlDecode(textToDecrypt);
byte[] encryptedData = Convert.FromBase64String(decodedUrl);
byte[] pwdBytes = Encoding.UTF8.GetBytes(key);
byte[] keyBytes = new byte[0x10];
int len = pwdBytes.Length;
if (len > keyBytes.Length)
{
len = keyBytes.Length;
}
Array.Copy(pwdBytes, keyBytes, len);
rijndaelCipher.Key = keyBytes;
rijndaelCipher.IV = keyBytes;
byte[] plainText = rijndaelCipher.CreateDecryptor().TransformFinalBlock(encryptedData, 0, encryptedData.Length);
return encoding.GetString(plainText);
}
public static string Encrypt(string textToEncrypt, string key)
{
RijndaelManaged rijndaelCipher = new RijndaelManaged();
rijndaelCipher.Mode = CipherMode.CBC;
rijndaelCipher.Padding = PaddingMode.PKCS7;
rijndaelCipher.KeySize = 0x80;
rijndaelCipher.BlockSize = 0x80;
byte[] pwdBytes = Encoding.UTF8.GetBytes(key);
byte[] keyBytes = new byte[0x10];
int len = pwdBytes.Length;
if (len > keyBytes.Length)
{
len = keyBytes.Length;
}
Array.Copy(pwdBytes, keyBytes, len);
rijndaelCipher.Key = keyBytes;
rijndaelCipher.IV = keyBytes;
ICryptoTransform transform = rijndaelCipher.CreateEncryptor();
byte[] plainText = Encoding.UTF8.GetBytes(textToEncrypt);
return Convert.ToBase64String(transform.TransformFinalBlock(plainText, 0, plainText.Length));
}
通过使用方法,可以成功加密和解密数据。之后,我成功加密了JSON对象,但是在解密时遇到了问题
我正在使用以下数据:
用于加密
Encrypt("{\"password\":\"Password123\",\"username\":\"Jhon.Trrot\"}", "demo")
用于解密
Decrypt(encString, "demo");
当我删除
:
和,
时,它可以正常工作,但是与:
和,
出现此错误:The server encountered an error processing the request. The exception message is 'The input is not a valid Base-64 string as it contains a non-base 64 character, more than two padding characters, or a non-white space character among the padding characters. '.
最佳答案
您忘记了使用加密方法对base 64输出进行URL编码。
关于c# - 输入不是有效的Base64字符串,因为它在C#中包含非基数64字符?,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/21019757/