MCSI: A Masked Commutative Supersingular Isogeny Key Exchange with Blinded Ephemeral Keys

We introduce MCSI, a two message key exchange we design over the CSIDH class group action, in which each party sends its ephemeral public element under an authenticated encryption keyed by the value the two static keys determine. The design gives implicit mutual authentication, hides the ephemera...

Microsoft Invents New Way To Measure Online Safety (And Finds That Consumers Stink At It)

Computer users are taking steps to mitigate online security threats, but still only score a paltry 34 out of 100 – a solid “F” – according to a new study by Microsoft. The study, sponsored by Microsoft’s Trustworthy Computing Group TwC, introduces a new metric, the Microsoft Computing Safety Inde...