![]() ![]() ![]() The qualify of a password is usually expressed in "bits of entropy". There has been some research showing that a library of 3 word phrases pulled from wikipedia makes a decent dictionary to crack these passwords. But once an attacker knows that you use a pass phrase, the key space is all for sudden limited again. Pass phrases, as suggested by the cartoon, are one solution. However, in real life, this may actually reduce the space of "memorable" passwords, or the total number of possible passwords. Most password policies try to enforce a hard to guess password by forcing you to extend the range of characters from which you pick (different case letters, numbers, special characters). The basic dilemma is that you need to come up with a password that is hard to guess for others but easy enough for you to remember. logging in to your system) that can't be covered by a password safe. Yes, I know passwords don't work, but we still all use them and we still have to come up with reasonable passwords.Įven if you are using a password safe tool that comes up with new random passwords for each application and website, you still need to remember the password for the password safe, and there are a few applications (e.g. I think the cartoon is great, and illustrates a nice dilemma in password security. We got a number of submissions pointing to today's XKCD cartoon. ![]()
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