this post was submitted on 20 Jul 2024
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I wonder if you string together enough words can it be a valid key?
I would hope so, sentences and words are some of the most secure passwords/phrases you can use
Words are the least secure way to generate a password of a given length because you are limiting your character set to 26, and character N gives you information about the character at position N+1
The most secure way to generate a password is to uniformly pick bytes from the entire character set using a suitable form of entropy
Edit: for the dozens of people still feeling the need to reply to me: RSA keys are fixed length, and you don't need to memorize them. Using a dictionary of words to create your own RSA key is intentionally kneecapping the security of the key.
so you are saying 44 bits of entropy is not enough. the whole point of the comic is, that 4 words out of a list of 2000 is more secure then some shorter password with leetcode and a number and punctuation at the end. which feels rather intuitive given that 4 words are way easier to remember
No im saying if your password size is limited to a fixed number of characters, as is the case with RSA keys, words are substantially less secure
Not if you’re considering security gained versus difficulty of remembering.
You don't memorize RSA keys