The U.S. Department of Commerce's National Institute of Standards and Technology (NIST) has selected four quantum-resistant cryptographic algorithms for general encryption and digital signatures.

A vulnerability tracked as CVE-2024-31497 in PuTTY 0.68 through 0.80 could potentially allow attackers with access to 60 cryptographic signatures to recover the private key used for their generation.

Thousands of emails purportedly from the laptop computer of Hunter Biden, President Biden’s son, are authentic communications that can be verified through cryptographic signatures from Google ...

threat actors to exfiltrate private keys used to generate cryptographic signatures. As a result, the attackers could gain unauthorized access to SSH servers, or could be allowed to sign commits as ...

Once it gets on the user's screen, it can be captured and replicated. If you want real signing you have to look into PGP and the like (eg. cryptographic signatures).