Imagine two people who have never met in person but need to exchange sensitive documents over an open network. They agree on a single memorable password in advance and nothing else. The sender creates an encrypted message that only the recipient can open with that same password. No certificates, no trusted middleman, and no pre-installed keys are required. This capability comes from a cryptographic approach called password-authenticated public-key encryption, or PAPKE. It combines the conven
postquantum (2)
Over the last several years, academia and industry have been converging on a shorter and more realistic timeline to Q-Day. While new research continues to move the Q-Day timeline up to 2028-2030, the scale and scope of the impact have been less clear. Broadly, the expectation has been that quantum attacks on cryptography would be serious, but there has been less information on which to base estimates of their speed, accessibility, and breadth. Two new research papers, released within a day of
