TSA Authority (Timestamping)

Timestamps are an important mechanism for the long-term preservation of digital signatures, time sealing of data objects to prove when they were received, protecting copyright and intellectual property and for the provision of notarization services.

The TSA Authority (Timestamping Authority) works as a plugin for most Windows webservers. That means it is not required to operate an extra TSA machine.

A fully functional version of our TSA Authority is available at this link: http://www.ca-soft.com/request.aspx.
Note: The TSA Authority does not require any credentials.

This product is compatibile with Adobe Acrobat products. The PDF Signer product includes timestamping feature so every document digitally signed by PDF Signer may be timestamped automatically using the TSA Authority.

Long-term validation purposes - Using our software you can sign and timestamp PDF documents for long-term validation purposes. PDF Signer supports advanced digital signatures which include embedded RFC 3161 compliant secure timestamps. Such signatures can be verified even after the signer's certificate expires or is revoked.

SHA-2 hash function - Our software may sign PDF documents using SHA-256, SHA-512 hash algorithm and RSA 2048 or higher key length according to ETSI TS 102 176-1 V2.0.0 ("ALGO Paper").

More details about PDF Signer

If you are interested in running your own timestamping service, you may contact us for our RFC 3161 compliant TSA Authority.

Product price: starting with 540 EUR

Useful links

Time Synchronizer

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