Introduction

UAEPASS provides a "Hash Signing" feature for digital document signing, ensuring a more secure method to sign PDF documents without the need to send them outside the organization's premises.

Here's how it works:

When a user logs into a document signature portal or application through UAEPASS authentication, the entity requests the signing of a document from UAEPASS. The entity sends the document's hash to UAEPASS and UAEPASS signs the hash of the document to send it back to the entity in PKCS#1 format. Entity should embed the signed hash back into the document in PKCS#7 format. At the end user can view and download the signed document.

Below is the high-level architectural diagram of UAEPASS Hash Signing:

Fig 1: High Level Architecture of UAEPASS Hash Signing

Fig 2 : Hash Signing Work Flow

Fig 3: Hash Signing Flow