public void TestHexEncodeDecode()
{
String data = "*****@*****.**";
String encodeData = CryptUtil.Encode(Encoding.UTF8.GetBytes(data), MasterCard.Core.Security.Fle.DataEncoding.HEX);
byte[] decodeDataBytes = CryptUtil.Decode(encodeData, MasterCard.Core.Security.Fle.DataEncoding.HEX);
String dataOut = System.Text.Encoding.UTF8.GetString(decodeDataBytes);
Assert.AreEqual(data, dataOut);
}
public IDictionary <String, Object> Encrypt(IDictionary <String, Object> map)
{
//requestMap is a SmartMap it offers a easy way to do nested lookups.
SmartMap smartMap = new SmartMap(map);
if (this.publicKey != null)
{
foreach (String fieldToEncrypt in configuration.FieldsToEncrypt)
{
if (smartMap.ContainsKey(fieldToEncrypt))
{
String payload = null;
// 1) extract the encryptedData from map
Object tmpObjectToEncrypt = smartMap.Get(fieldToEncrypt);
smartMap.Remove(fieldToEncrypt);
if (tmpObjectToEncrypt.GetType() == typeof(Dictionary <String, Object>))
{
// 2) create json string
payload = JsonConvert.SerializeObject(tmpObjectToEncrypt);
// 3) escaping the string
payload = CryptUtil.SanitizeJson(payload);
}
else
{
payload = tmpObjectToEncrypt.ToString();
}
Tuple <byte[], byte[], byte[]> aesResult = CryptUtil.EncryptAES(System.Text.Encoding.UTF8.GetBytes(payload), configuration.SymmetricKeysize, configuration.SymmetricMode, configuration.SymmetricPadding);
// 4) generate random iv
byte[] ivBytes = aesResult.Item1;
// 5) generate AES SecretKey
byte[] secretKeyBytes = aesResult.Item2;
// 6) encrypt payload
byte[] encryptedDataBytes = aesResult.Item3;
String ivValue = CryptUtil.Encode(ivBytes, configuration.DataEncoding);
String encryptedDataValue = CryptUtil.Encode(encryptedDataBytes, configuration.DataEncoding);
// 7) encrypt secretKey with issuer key
byte[] encryptedSecretKey = CryptUtil.EncrytptRSA(secretKeyBytes, this.publicKey, configuration.OaepEncryptionPadding);
String encryptedKeyValue = CryptUtil.Encode(encryptedSecretKey, configuration.DataEncoding);
String fingerprintHexString = publicKeyFingerPrint;
String baseKey = "";
if (fieldToEncrypt.IndexOf(".") > 0)
{
baseKey = fieldToEncrypt.Substring(0, fieldToEncrypt.IndexOf("."));
baseKey += ".";
}
if (configuration.PublicKeyFingerprintFiledName != null)
{
smartMap.Add(baseKey + configuration.PublicKeyFingerprintFiledName, fingerprintHexString);
}
if (configuration.OaepHashingAlgorithmFieldName != null)
{
smartMap.Add(baseKey + configuration.OaepHashingAlgorithmFieldName, configuration.OaepHashingAlgorithm);
}
smartMap.Add(baseKey + configuration.IvFieldName, ivValue);
smartMap.Add(baseKey + configuration.EncryptedKeyFiledName, encryptedKeyValue);
smartMap.Add(baseKey + configuration.EncryptedDataFieldName, encryptedDataValue);
break;
}
}
}
return(smartMap);
}