OCSP stands for Online Certificate Status Protocol and is used by Certificate Authorities to check the revocation status of an X.509 digital certificate.
Mike Hathaway
Recent Posts
What is OCSP and how does it work?
SigningHub January ’20 release
On the 25th January 2020, Ascertia will launch SigningHub January '20 release (version 7.7.7). This release includes additional Enterprise user features and mobile device security settings.
Case Study: With Ascertia, DigiCert + QuoVadis becomes the first QTSP to deliver eIDAS-certified Qualified Remote Signing with Level 2 Sole Control
Qualified Trust Service Providers (QTSPs) work with customers in high-trust industries that require eIDAS certified Qualified Signatures.
In our latest case study, we look at how DigiCert + QuoVadis, a long-standing Ascertia partner, utilised the ADSS SAM Appliance to offer its customers certified, eIDAS-compliant Remote Qualified eSignatures.
Ascertia’s ADSS SAM Appliance is the first Qualified Signature Creation Device (QSCD) to be Common Criteria EN 419 241-2 certified.
Ascertia products unaffected by the ROBOT attack
Recently a vulnerability in the implementation of TLS protocol has been found called ROBOT (Return Of Bleichenbacher's Oracle Threat).
This is the return of a 19-year-old vulnerability that allows RSA decryption and signing operations with the private key of a TLS server.
SigningHub Spring '17 release
On 3rd April 2017, Ascertia is launching the SigningHub Spring ’17 release (v7.2). This release includes plenty of useful enhancements and new features for user authentication, local signing and security, all designed to help deliver great business value.
SHA1 is dead. Why should you care?
SHA1 is officially dead. For everyday users of electronic signatures, SHA1 might not mean much to you but we can assure you - this development is incredibly important!
What is SHA1?
SHA1 is a hash algorithm - a type of security measure used in popular software across the world. This includes the majority of electronically signed documents.
SigningHub Summer '15 release
On August 5th Ascertia launches the SigningHub Summer '15 release (v6.2). There are a number of enhancements. All Summer '15 release updates are aimed at improving the user experience and delivering out-of-the-box integration with common business applications.
As usual, all existing SigningHub users will be automatically and seamlessly upgraded.

