When using the XKCD password methodology, entropy is calculated solely on the basis of individual words, assuming that the individual words are independent. This is, of course, not necessarily a valid ...
Questions about the strength of pass phrases frequently popup, as does: how to generate a strong passphrase? I tried to combine both in a tool. The free tool also includes recovery time estimations ...
RFC 3414 (published 2002) specifies a method of generating keys based on password in its Appendix, which essentially takes any "passphrase", and keeps on repeating it until there is a 1MB string, at ...