How digital signature is done in Open Sign

[jeffsampaul]

Hi Open Sign Team,

Are we using the digital signature mechanism like anything below?

1. There are 2 keys associated with the user(Private and Public key)
2. Hash value generation: A unique hash value is generated from the document's contents.
3. Private key encryption: The hash value is encrypted using the signer's private key (or a temporary key).
4. Digital signature generation: The encrypted hash value becomes the digital signature.