76 lines
2.0 KiB
C#
76 lines
2.0 KiB
C#
using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Security.Cryptography;
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using System.Text;
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using System.Threading.Tasks;
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using static System.Runtime.InteropServices.JavaScript.JSType;
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namespace SecureBank.API.Encryption
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{
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public class EncryptionHelper
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{
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#region SERVICES
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private EncryptionConfiguration _configuration;
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#endregion
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#region FIELDS
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private Aes _aes;
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#endregion
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#region CONSTRUCTORS
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public EncryptionHelper(EncryptionConfiguration configuration)
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{
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_configuration = configuration;
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_aes = Aes.Create();
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_aes.Key = _configuration.Key;
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_aes.IV = _configuration.IV;
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}
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#endregion
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#region PUBLIC METHODS
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public byte[] Encrypt(string data)
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{
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ICryptoTransform encryptor = _aes.CreateEncryptor(_aes.Key, _aes.IV);
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using (MemoryStream memoryStream = new MemoryStream())
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{
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using (CryptoStream cryptoStream = new CryptoStream(memoryStream, encryptor, CryptoStreamMode.Write))
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using (StreamWriter streamWriter = new StreamWriter(cryptoStream))
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{
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streamWriter.Write(data);
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}
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return memoryStream.ToArray();
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}
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}
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public string Decrypt(byte[] data)
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{
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ICryptoTransform decryptor = _aes.CreateDecryptor(_configuration.Key, _configuration.IV);
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using (MemoryStream memoryStream = new MemoryStream(data))
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using (CryptoStream cryptoStream = new CryptoStream(memoryStream, decryptor, CryptoStreamMode.Read))
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{
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byte[] outputBytes = new byte[data.Length];
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int decryptedByteCount = cryptoStream.Read(outputBytes, 0, outputBytes.Length);
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return Encoding.UTF8.GetString(outputBytes.Take(decryptedByteCount).ToArray());
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}
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}
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#endregion
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}
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}
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