Does a password-derived public key authentication improve security over pure password-based authentication?

Despite best efforts it is pretty clear that most users reuse their credentials, especially for what they consider non-critical sites such as forums. While TFA does mitigate the potential damage of this a bit (aside from its other benefits… Continue reading Does a password-derived public key authentication improve security over pure password-based authentication?

What kinds of encryption are _not_ breakable via Quantum Computers?

There’s the recent article NSA seeks to build quantum computer that could crack most types of encryption. Now I’m not surprised by the NSA trying anything1, but what slightly baffles me is the word “most” – so, what encryptio… Continue reading What kinds of encryption are _not_ breakable via Quantum Computers?

Apart from the lack of native Outlook support, why should one prefer S/MIME over PGP/MIME for email?

From my (still quite subjective) point of view, GnuPG/PGP is superior to SSL (or more specifically, PGP/MIME over S/MIME; maybe in other areas SSL is the better choice), e.g. due to the support of subkeys to separate signing and encryption… Continue reading Apart from the lack of native Outlook support, why should one prefer S/MIME over PGP/MIME for email?