Tecxoft TSA(Timestamp Authority) service has compliance with IETF RFC 3161. It can work as internal service with Tecxoft signer server, as well as with other third-party application requesting timestamps. TSA response is digitally signed by a valid certificate, it is also known as timestamp token. Major hash algorithms supported by Tecxoft TSA, include SHA1, SHA256 and SHA512. A timestamp token is embedded with a digital signature to prove the time at which document was signed.

A trusted digital timestamp gives a strong evidence that the document existed at a particular time. Definition of digital timestamps given by Wikipedia can be found at this link.

In this process, client software sends unique fingerprint of the data (file) to our TSA. The TSA puts the fingerprint and current time in an envelop and put its digital signatures. Result is a timestamp token that is returned to the client, this token also include certificate of the TSA.

Test: Test service requires HTTP authentication, please signup. Support SHA256 hash algorithms, any tool supporting RFC3161 timestamps can use the service.

Please click https://tsa.tecxoft.com to get more information.