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  1. var crypto = require('crypto'),
  2.     algorithm = 'aes-128-cbc',
  3.     password = 'zW7f5YXELwlZMEDvkaeGe1nu51QbAwhB';
  4. var secretKey = 'zW7f5YXELwlZMEDvkaeGe1nu51QbAwhB';
  5.  
  6. // var crypto = require('crypto'),
  7. //     algorithm = 'aes-256-ctr',
  8. //     password = 'd6F3Efeq';
  9.  const key = crypto.createHash('sha256').update(password).digest('base64').substr(0, 16);
  10.  
  11. function encrypt(buffer){
  12.   var cipher = crypto.createCipher(algorithm,key)
  13.   var crypted = Buffer.concat([cipher.update(buffer),cipher.final()]);
  14.   return crypted;
  15. }
  16.  
  17. function decrypt(buffer){
  18.   var decipher = crypto.createDecipher(algorithm,key)
  19.   var dec = Buffer.concat([decipher.update(buffer) , decipher.final()]);
  20.   return dec;
  21. }
  22.  
  23.  function aesDecrypt (value) {
  24.   // try {
  25.     const encryptedText = Buffer.from(value, 'hex');
  26.     console.log("encryptedText",encryptedText ,encryptedText.toString());
  27.     const key = crypto.createHash('sha256').update(secretKey).digest('base64').substr(0, 16);
  28.     // decipher the string
  29.     console.log("key",key);
  30.     const decipher = crypto.createDecipher(algorithm, Buffer.from(key));
  31.     console.log("decipher",decipher);
  32.     let decrypted = decipher.update(encryptedText, 'hex', 'utf8');
  33.     console.log("decrypted",decrypted, decrypted.length);
  34.     decrypted += decipher.final();
  35.     console.log("decrypted",decrypted, decrypted.length);
  36.     return decrypted;
  37.   // } catch (err) {
  38.   //   // in case failed decryption, return the encrypted itself
  39.   //   return value;
  40.  
  41.   // }
  42. }
  43. function aesEncrypt(value) {
  44.   // try {
  45.     const key = crypto.createHash('sha256').update(secretKey).digest('base64').substr(0, 16);
  46.     console.log("key",key,Buffer.from(key));
  47.     const cipher = crypto.createCipher(algorithm, Buffer.from(key));
  48.     // cipher.setAutoPadding(false)
  49.     let crypted = cipher.update(value, 'utf8', 'hex');
  50.     console.log("crypted_______________",crypted);
  51.     crypted += cipher.final('hex');
  52.     console.log("crypted",crypted,"_________________", "+++++++",crypted.toString('hex'), value);
  53.     return crypted.toString('hex');
  54.   // } catch (err) {
  55.   //   console.log('aesEncryptError', { value, err });
  56.   //   // in case failed encryption, return the value itself
  57.   //   return value;
  58.   // }
  59. }
  60. // var hw = encrypt(new Buffer("NAM_DEP_TRAI_28", "utf8"))
  61. // outputs hello world
  62. // console.log(hw.toString());
  63. // console.log(decrypt(hw).toString('utf8'));
  64. aesEncrypt("NAM_DEP_TRAI_28");
  65. aesDecrypt("788b395a68ec33f0ff10d2a790c6c235");
  66. // aesDecrypt("1bddc75575ea788075fe18538d8e665a")
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