Openpgpjs: using openpgp to decrypt the csv file encrypted with gpg4win-3.1.2

[nttd-uikeynitin]

I have generated key pair using gpg4win-3.1.2.
I have both public and private key with pass-phrase.

I created a csv file and encrypted it using kleopatra tool.

I am able to decrypt the file using node gpg library but it uses binary to decrypt.

can we use openpgp to decrypt the same file?

[bartbutler]

You should be able to, yes. Does it not work?

[nttd-uikeynitin]

Yes. Its not working.

Following code ->

const path = require('path');
const fs = require('fs');
const openpgp = require('openpgp');

const privkey = fs.readFileSync(path.join(__dirname, 'private.asc'), 'utf8');
const pubkey = fs.readFileSync(path.join(__dirname, 'public.asc'), 'utf8');
const encrypted = fs.readFileSync(path.join(__dirname, 'test.csv.gpg'),'utf8');

const passphrase = test;

const encryptDecryptFunction = async() => {

const privKeyObj = (await openpgp.key.readArmored(privkey)).keys[0]
await privKeyObj.decrypt(passphrase)

      const options = {
        message: await openpgp.message.readArmored(encrypted),    // parse armored message
        publicKeys: (await openpgp.key.readArmored(pubkey)).keys, // for verification (optional)
        privateKeys: [privKeyObj]                                 // for decryption
    }

    openpgp.decrypt(options).then(plaintext => {
        console.log(plaintext.data)
        return plaintext.data
    }).catch(err => {
        console.log(err);
    })

}

encryptDecryptFunction();

---

Has error -> UnhandledPromiseRejectionWarning: Error: Misformed armored text

[sanjanarajan]

openpgp.message.readArmored parses armored message data, which is a string beginning with "-----BEGIN PGP MESSAGE-----".

To parse binary data into a message object, you will need to use openpgp.message.read instead.