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3

There is nothing complicated about building a tool to crack Diceware passphrases assuming you have an oracle, such as a hash of the passphrase, that will tell you when you have the correct answer. The cracking tool would simply loop through all possible combinations of up to n words from the Diceware list. It is also straightforward to estimate how long such ...


-1

Just ask for strong passwords, not P4$$w0rDsTh4TW1lLn3V3RbEr3m3mB3r3D. Away with the special characters, and just write long plain sentences that actually can be remembered. Calculate the entropy instead of forcing inane rules on the form. I will never remember the stackexchange password I just created. I will just trust the browser to remember it, which ...


6

You cannot know what tools exist. Actually, if the attack pattern can be enunciated ("just use three random words from a list of common words") then it can be translated to code in a matter of minutes. That the already-compiled, ready-to-run tool is not accessible from a single Google search and a couple of clicks does not mean that it does not exist, only ...


4

UUID of type "v4" are supposed to be generated with 122 random bits: o Set all the other bits to randomly (or pseudo-randomly) chosen values. However, it is not said that the said bits must come from a cryptographically secure PRNG (section 4.5 recommends it but does not mandates it). IF the 122 bits indeed come from a secure PRNG, then they are ...


3

Such a question would prove that the person asking it has become serious about the strength of their passwords, at which point you simply should start using a password manager. Seriously strong passwords, without memorizing a bunch of poems.


12

A common word of the English language has approximately 11 bits of entropy. That means a 256bit passphrase (passtext?) would require 24 words. How could one make up a text of that length which is still easy to memorize? You could write a poem. The art of writing poetry and memorizing poems is not hard to learn. It doesn't even has to rhyme. In fact, not ...



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