Need a Private Certificate Key to sign your PDF documents? Read more here. The supported hashes are: md4 / md5 / rmd160 / sha / sha1 / sha224 / sha256 / sha384 / sha512įreeTSA recommends that users choose SHA512 (SHA-512) when software or hardware gives that option, because is considered the most secure of the hashes currently available. You do have to save the documents in different folders or name the documents differently to know which of the Time Stamp Services you have applied. Using several Time Stamping services (one at a time) makes your documents more resistant to possible future problems in current Time Stamping Services (hacking, bad behavior from the certification authorities, and others). Using this time stamp server helps you prove to others that the document did exist at that date and hour, so it is very useful in certain circumstances.įor legally binding time stamp, you need to check applicable law, in order to know, what time stamping authorities, are acceptable as valid in your area. In this guide you can learn on how to apply an external Time Stamp, from FreeTSA trusted time stamping, when you are applying an Digital Signature to your PDF document. Main page - FreeTSA - Guide: How to sign PDF documents files with time stamp FreeTSA - How to sign PDF documents with time stamp
0 Comments
Leave a Reply. |