How to encrypt login credentials to base64 with key

Question

I am trying to encrypt loginDTO to base64 with a key in angular 5 application . I know we have blot() which accepts a string and converts to base64 but not sure how to do it here.

Const credential = 
  { username : 'abc123' 
    password : '12345'
  };

 Const Key = 'some key'

Could someone help me to convert this object to byte array and then encrypt to base64 with key.

Note- I cannot use any external library like cryptoJS Since the same encryption method is written for mobile app in xamarin and backend is same for web and mobile c#.

Base64 is not for 'encoding with a key'. It is simply a encoding scheme. Have you tried: btoa(JSON.stringify(credential)) ? Note: You will need a symmetric encryption algorithm like AES (for example) to encrypt the output of the stringify with a key. — GabrielBiga, Jan 11 '20 at 02:57

score 2 · Accepted Answer · answered Jan 11 '20 at 06:06

Base64 is simple encoding scheme, it is not for 'encoding with a key'. you can use Base64 to encrypt and decrypt strings without any extra key.

Ref : https://stackoverflow.com/a/6348344/9009397

Ref : https://en.wikipedia.org/wiki/Base64

You can use another encoding method that support encryption with key

Ex: 'crypto-js' http://github.com/brix/crypto-js

https://stackoverflow.com/a/53478984/10430605

score 0 · Answer 2 · answered Jan 12 '20 at 14:05

We must clearly distinguish between "encrypting" and "encoding".

Encrypting uses an encryption key to convert data in a way that it cannot be made readable again (= decrypted) without the appropriate decryption key.

Encoding, however, means to change the representation scheme of data. As a common example, a text can be encoded in ASCII or UTF-8, and it can be converted from one encoding to another by anyone.

Base64 is an encoding scheme. For your purposes, you need encryption.

How to encrypt login credentials to base64 with key

2 Answers2