我有来自第三方的加密示例，我需要与...集成...
我应该向他们发送加密消息，他们会在结束时对其进行解密并执行所需的操作。
他们为我提供了他们期望字符串加密的例子。
echo -n ['String to encrypt'] | openssl enc -aes-128-cbc -A -a -nosalt -K [Hexption EncryptionKey] -iv 30303030303030303030303030303030
我给出的沙盒encryptionKey Hex是313233343536373839
目前我无法使用上面指定的密钥和IV ...因为.Net中的AES实现引发了我的错误，其中显示“指定的密钥不是此算法的有效大小”
然后我只用0填充键以匹配32个字节并截断IV以匹配16个字节..
然后我能够至少运行代码但是我的c＃代码中的加密字符串无法在openssl上解密..
以下是我的代码..
public static string EncryptString(string plainText, string password)
{
byte[] key, iv;
//converting key to hex
byte[] ba = Encoding.ASCII.GetBytes("0123456789abcdef");
string encryptionKeyHex = BitConverter.ToString(ba);
encryptionKeyHex = encryptionKeyHex.Replace("-", "");
// Padding key hex with zeros to match the size that .Net algo expects
if (encryptionKeyHex.Length < 32)
{
while (encryptionKeyHex.Length < 32)
{
encryptionKeyHex += "0";
}
}
var keyBytes = Encoding.ASCII.GetBytes(encryptionKeyHex);
var ivBytes = Encoding.ASCII.GetBytes("3030303030303030"); // truncated the original IV specified in the question description to match the size.
iv = ivBytes;
key = keyBytes;
var amAes = new AesManaged();
amAes.Mode = CipherMode.CBC;
amAes.Padding = PaddingMode.PKCS7;
amAes.KeySize = 128;
amAes.BlockSize = 128;
amAes.Key = key;
amAes.IV = iv;
var icTransformer = amAes.CreateEncryptor();
var msTemp = new MemoryStream();
var csEncrypt = new CryptoStream(msTemp, icTransformer, CryptoStreamMode.Write);
var sw = new StreamWriter(csEncrypt);
sw.Write(plainText);
sw.Close();
sw.Dispose();
csEncrypt.Clear();
csEncrypt.Dispose();
byte[] bResult = msTemp.ToArray();
//var sha = new SHA1CryptoServiceProvider();
//var result = sha.ComputeHash(bResult);
string sResult = Convert.ToBase64String(bResult);
sResult = HttpUtility.UrlEncode(sResult);
if (System.Diagnostics.Debugger.IsAttached)
{
string debugDetails = "";
debugDetails += "==> INPUT : " + plainText + Environment.NewLine;
debugDetails += "==> SECRET : " + password + Environment.NewLine;
//debugDetails += "==> SALT : " + Program.ByteArrayToHexString(salt) + Environment.NewLine;
debugDetails += "==> KEY : " + Encoding.ASCII.GetString(amAes.Key) + " (" + amAes.KeySize.ToString() + ")" + Environment.NewLine;
debugDetails += "==> IV : " + Encoding.ASCII.GetString(amAes.IV) + Environment.NewLine;
debugDetails += "==> ENCRYPTED : " + sResult;
Console.WriteLine(debugDetails);
}
return sResult;
}
输出：
==＆GT; INPUT：{“filter.accession_number.equals”：“0987654321”}
==＆GT;秘密： ==＆GT; KEY：30313233343536373839000000000000（256）
==＆GT; IV：3030303030303030
==＆GT;加密：B2uDRjnekFAlRDEKDldTs09lWiE4u16ZunVwDGi6gKm6YsaRlW4HU6eKJqfYZc7b
更新
我们注意到，使用相同的方法在Windows框上加密时比使用Linux Box加密效果不同。
在使用openssl的linux机器上，我们得到..
命令： echo -n'{“filter.accession_number.equals”：“0987654321”}'| openssl enc -aes-128-cbc -A -a -nosalt -K 313233343536373839 -iv 30303030303030303030303030303030
结果： MTAusb6rYkxYf9 / REbFq9M1XwR + 6Q58FfSJPTxDNwgs6z3jZ8ru + 7ysnKuy2p3ox
加密的字符串工作得很好..我能够成功解密它。
在Windows框中向openssl发出相同的命令给我们..
命令： echo -n'{“filter.accession_number.equals”：“0987654321”}'| openssl enc -aes-128-cbc -A -a -nosalt -K 313233343536373839 -iv 30303030303030303030303030303030
结果： Db9829q6QX6CPwLkE + rs6zqRJJQaGZ9xk7fbztaGqsKcHPcr7equz3yOJPLc + S6yvW4jXQTzoOk43F16GW7sPw ==
此字符串不起作用...
答案 0 :(得分：1)
你只是忘记解码十六进制; Encoding.ASCII.GetBytes仅获取密钥和IV的ASCII表示。
检查答案here以正确转换为字节（即将Encoding.ASCII.GetBytes替换为StringToByteArray）。
答案 1 :(得分：0)
以下是任何陷入类似问题的人的工作代码示例... @Maarten Bodewes你确实指出了我正确的方向，只需重新安排代码使其工作。谢谢:)
public static string EncryptString(string plainText)
{
byte[] key, iv;
byte[] rawKey = Encoding.ASCII.GetBytes("123456789abcdef");
string encryptionKeyHex = BitConverter.ToString(rawKey);
byte[] hexKayBytes = FromHex(encryptionKeyHex); // convert to bytes with 'dashes'
byte[] data = FromHex("30-30-30-30-30-30-30-30-30-30-30-30-30-30-30-30");
encryptionKeyHex = ByteArrayToHexString(hexKayBytes);
// modifying key size to match the algorithm validation on key size
if (encryptionKeyHex.Length < 32)
{
while (encryptionKeyHex.Length < 32)
{
encryptionKeyHex += "0";
}
}
var ivOriginal = BitConverter.ToString(data);
ivOriginal = ivOriginal.Replace("-", "");
if (ivOriginal.Length < 16)
{
while (ivOriginal.Length < 16)
{
ivOriginal += "0";
}
}
var keyBytes = StringToByteArray(encryptionKeyHex);
var ivBytes = StringToByteArray(ivOriginal);
iv = ivBytes;
key = keyBytes;
var amAes = new AesManaged();
amAes.Mode = CipherMode.CBC;
amAes.Padding = PaddingMode.PKCS7;
amAes.KeySize = 128;
amAes.BlockSize = 128;
amAes.Key = key;
amAes.IV = iv;
var icTransformer = amAes.CreateEncryptor();
var msTemp = new MemoryStream();
var csEncrypt = new CryptoStream(msTemp, icTransformer, CryptoStreamMode.Write);
var sw = new StreamWriter(csEncrypt);
sw.Write(plainText);
sw.Close();
sw.Dispose();
csEncrypt.Clear();
csEncrypt.Dispose();
byte[] bResult = msTemp.ToArray();
string sResult = Convert.ToBase64String(bResult);
if (System.Diagnostics.Debugger.IsAttached)
{
string debugDetails = "";
debugDetails += "==> INPUT : " + plainText + Environment.NewLine;
debugDetails += "==> SECRET : " + password + Environment.NewLine;
//debugDetails += "==> SALT : " + Program.ByteArrayToHexString(salt) + Environment.NewLine;
debugDetails += "==> KEY : " + Encoding.ASCII.GetString(amAes.Key) + " (" + amAes.KeySize.ToString() + ")" + Environment.NewLine;
debugDetails += "==> IV : " + Encoding.ASCII.GetString(amAes.IV) + Environment.NewLine;
debugDetails += "==> ENCRYPTED : " + sResult;
Console.WriteLine(debugDetails);
}
return sResult;
}
public static byte[] FromHex(string hex)
{
hex = hex.Replace("-", "");
byte[] raw = new byte[hex.Length / 2];
for (int i = 0; i < raw.Length; i++)
{
raw[i] = Convert.ToByte(hex.Substring(i * 2, 2), 16);
}
return raw;
}
private static string ByteArrayToHexString(byte[] bytes)
{
StringBuilder sbHex = new StringBuilder();
foreach (byte b in bytes)
sbHex.AppendFormat("{0:x2}", b);
return sbHex.ToString();
}
public static byte[] StringToByteArray(String hex)
{
int NumberChars = hex.Length;
byte[] bytes = new byte[NumberChars / 2];
for (int i = 0; i < NumberChars; i += 2)
bytes[i / 2] = Convert.ToByte(hex.Substring(i, 2), 16);
return bytes;
}