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ajinabraham/sign.js

Last active January 11, 2023 15:44
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Revisions

  1. ajinabraham revised this gist May 14, 2018. 1 changed file with 1 addition and 1 deletion.
    2 changes: 1 addition & 1 deletion sign.js
    View file
    Original file line number Diff line number Diff line change
    @@ -16,4 +16,4 @@ const signature = signer.sign(private_key)
    const buff = new Buffer(signature);
    const base64data = buff.toString('base64');
    console.log('Digital Signature: ' + base64data);
    //Equvalent to openssl dgst -sha256 -sign digital_sign/privateKey.pem webpackage.zip | base64
    //Equivalent to openssl dgst -sha256 -sign digital_sign/privateKey.pem webpackage.zip | base64
  2. ajinabraham created this gist May 14, 2018.
    19 changes: 19 additions & 0 deletions sign.js
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,19 @@
    //Create Private Key with OpenSSL
    //openssl genpkey -algorithm RSA -pkeyopt rsa_keygen_bits:4096 -pkeyopt rsa_keygen_pubexp:3 -out privateKey.pem
    //Generate Public Key to be used at the client side (Mobile)
    //openssl pkey -in privateKey.pem -out publicKey.pem -pubout
    const crypto = require('crypto')
    const fs = require('fs')

    const private_key = fs.readFileSync('digital_sign/privateKey.pem', 'utf-8')
    //File to be signed
    const package = fs.readFileSync('webpackage.zip')
    //Signing
    const signer = crypto.createSign('sha256');
    signer.update(package);
    signer.end();
    const signature = signer.sign(private_key)
    const buff = new Buffer(signature);
    const base64data = buff.toString('base64');
    console.log('Digital Signature: ' + base64data);
    //Equvalent to openssl dgst -sha256 -sign digital_sign/privateKey.pem webpackage.zip | base64