Encrypt file using javascript

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I currently have such a requirement, but I cannot decrypt the encrypted file, the generated file is always damaged and cannot be opened, and I do not know where the problem lies. The code posted below is the code I use in VUE. CryptoJS also uses WordArray. You have to convert between these types properly. For encryption, FileReader. This string can be used to directly create the blob. Note: Since the key is passed in CryptoJS.

For decryption, FileReader. This string is implicitly converted into a CipherParams object here , alternatively, a CipherParams object can be explicitly passed. For this the following function can be used:. But This program is a little bit secure than MD5. You can say this a medium level secure hash encryption because you can set a password for encryption. Simple programs encrypt data in a default or single form every time. But this program encodes text every time different by according to given password.

Before sharing source code, talk something about this simple javascript encrypt program. I had created this function with some lines of javascript. I used javascript loop for in this program. I used the key code of passcode using charCodeAt and combine in the loop. Note : You have to put a password for encrypting your text. The same thing will be applied when to want to decrypt. You have to put the same password you had put when you encrypt. Is there any working sample I can test which can process files of any kind?

Community Bot 1 1 1 silver badge. Alex Alex 2, 3 3 gold badges 21 21 silver badges 51 51 bronze badges. Add a comment. Active Oldest Votes. First of all, the user has to be able to select a file via an input element.

Here is a little example which alerts the length of the encrypted data. Thank you. However, can it work with large files? Browsers crash. I had the same problem when I played around with it, but I can't help you with that, sorry. ManojBhardwaj You put it through crypto. Show 1 more comment. If you are looking for a secure encryption algorithm that would require a secret passphrase for decrypting the encrypted text, go with AES. It generates longer strings but they cannot be decrypted without the password.

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Published in: Google Apps Script - Javascript.