Colliding X.509 Certificates for Different IdentitiesJointly with Alex Sotirov, Jake Appelbaum, David Molnar and Dag Arne Osvik we have extended thois work into a realistic attack: Creating a rogue CA certificate. This work has had some influence on the catalogue of algorithms suitable for the German Signature Law (Signaturgesetz). This catalogue (a.o.) prescribes the conditions and time frames for hash algorithms to be used in legally protected dig
