He completed only half of this project, using only the neutral and flat key signatures.
One way to address non-repudiation is using digital signatures.
Peers can protect their identities from each other's by using reply onions, digital signatures, or similar technologies.
Although the latter issue can probably be resolved using blind signatures, the first remains.
Some modern composers do not use key signatures.
Most modern antivirus software still use signatures, but also carry out other types of analysis.
The next step, allowing people to register directly online using digital signatures, does not seem likely in the near future.
This is largely due to the fact that he used several different names and signatures on official documents during his lifetime.
Using one-month old signatures and a set of new malware, however, detection fell to 14 percent.
European patent application on "Electronic voting process using fair blind signatures"