adibiton / digitial-signature-service Goto Github PK

This is a simple express service that demonstrate a simple digital signature using the crypto (node.js) module

1. Create private/public key pair (e.g. using openssl)

openssl genrsa -out rsa_1024_private.pem 1024
openssl rsa -pubout -in rsa_1024_private.pem -out rsa_1024_public.pem

will result in two files rsa_1024_private.pem and rsa_1024_public.pem

2. Create keys folder under the root folder with the following files:

keys
   |
    - rsa_1024_private.pem
   |
    - rsa_1024_public.pem

npm start

sign signing a message using the private key

curl -d '{"message": "the fox xof eht"}' -H "Content-Type: application/json" -X POST localhost:3001/sign

validate validating if the message has been signed using the appropriate public key returns boolean (true if the signature is valid)

curl -d '{"message": "the fox xof eht", "signature": "aaa"}' -H "Content-Type: application/json" -X POST localhost:3001/validate

MIT