markus / FinalService / KCOM_FinalService / ConnectionStrEncrypt / Program.cs @ d1be84a0
이력 | 보기 | 이력해설 | 다운로드 (2.92 KB)
| 1 | e05bed4e | djkim | using System; |
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| 2 | using System.Collections.Generic; |
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| 3 | using System.Linq; |
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| 4 | using System.Security.Cryptography; |
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| 5 | using System.Text; |
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| 6 | using System.Threading.Tasks; |
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| 7 | |||
| 8 | namespace ConnectionStrEncrypt |
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| 9 | {
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| 10 | class Program |
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| 11 | {
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| 12 | static void Main(string[] args) |
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| 13 | {
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| 14 | d1be84a0 | humkyung | ///String originalText = "data source=cloud.devdoftech.co.kr,7777;database={0};user id=doftech;password=dof1073#";
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| 15 | e05bed4e | djkim | String key = "Doftech1073#"; |
| 16 | |||
| 17 | d1be84a0 | humkyung | if ((args.Length == 2) && (args[0] == "-en")) |
| 18 | {
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| 19 | String en = Encrypt(args[1], key); |
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| 20 | Console.WriteLine("Encrypted Text is \"" + en + "\"");
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| 21 | } |
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| 22 | else if ((args.Length == 2) && (args[0] == "-de")) |
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| 23 | {
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| 24 | String de = Decrypt(args[1], key); |
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| 25 | Console.WriteLine("Decrypted Text is \"" + de + "\"");
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| 26 | } |
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| 27 | else |
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| 28 | {
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| 29 | Console.WriteLine("Usage : ConnectionStrEncrypt.exe -en|-de <input string>");
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| 30 | } |
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| 31 | e05bed4e | djkim | } |
| 32 | d1be84a0 | humkyung | |
| 33 | e05bed4e | djkim | public static string Decrypt(string textToDecrypt, string key) |
| 34 | {
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| 35 | RijndaelManaged rijndaelCipher = new RijndaelManaged(); |
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| 36 | rijndaelCipher.Mode = CipherMode.CBC; |
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| 37 | rijndaelCipher.Padding = PaddingMode.PKCS7; |
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| 38 | rijndaelCipher.KeySize = 128; |
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| 39 | rijndaelCipher.BlockSize = 128; |
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| 40 | |||
| 41 | byte[] encryptedData = Convert.FromBase64String(textToDecrypt); |
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| 42 | byte[] pwdBytes = Encoding.UTF8.GetBytes(key); |
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| 43 | byte[] keyBytes = new byte[16]; |
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| 44 | |||
| 45 | int len = pwdBytes.Length; |
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| 46 | if (len > keyBytes.Length) |
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| 47 | {
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| 48 | len = keyBytes.Length; |
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| 49 | } |
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| 50 | |||
| 51 | Array.Copy(pwdBytes, keyBytes, len); |
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| 52 | rijndaelCipher.Key = keyBytes; |
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| 53 | rijndaelCipher.IV = keyBytes; |
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| 54 | |||
| 55 | byte[] plainText = rijndaelCipher.CreateDecryptor().TransformFinalBlock(encryptedData, 0, encryptedData.Length); |
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| 56 | return Encoding.UTF8.GetString(plainText); |
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| 57 | } |
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| 58 | |||
| 59 | |||
| 60 | |||
| 61 | public static string Encrypt(string textToEncrypt, string key) |
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| 62 | {
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| 63 | RijndaelManaged rijndaelCipher = new RijndaelManaged(); |
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| 64 | rijndaelCipher.Mode = CipherMode.CBC; |
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| 65 | rijndaelCipher.Padding = PaddingMode.PKCS7; |
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| 66 | rijndaelCipher.KeySize = 128; |
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| 67 | rijndaelCipher.BlockSize = 128; |
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| 68 | |||
| 69 | byte[] pwdBytes = Encoding.UTF8.GetBytes(key); |
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| 70 | byte[] keyBytes = new byte[16]; |
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| 71 | int len = pwdBytes.Length; |
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| 72 | if (len > keyBytes.Length) |
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| 73 | {
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| 74 | len = keyBytes.Length; |
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| 75 | } |
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| 76 | |||
| 77 | Array.Copy(pwdBytes, keyBytes, len); |
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| 78 | rijndaelCipher.Key = keyBytes; |
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| 79 | rijndaelCipher.IV = keyBytes; |
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| 80 | ICryptoTransform transform = rijndaelCipher.CreateEncryptor(); |
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| 81 | byte[] plainText = Encoding.UTF8.GetBytes(textToEncrypt); |
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| 82 | return Convert.ToBase64String(transform.TransformFinalBlock(plainText, 0, plainText.Length)); |
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| 83 | } |
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| 84 | } |
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| 85 | } |
