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Moar entropy #34
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Moar entropy #34
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One less magic number!
62 possible characters (26 upper + 26 lower + 10 digits) If 16 characters long, 62^16 = 95.27 bits of entropy 20 characters, is 119.08 bits of entropy 22 gets us to over 128 bits with 130.99 bits of entropy, but to keep it chunkable in groups of four, let's bump up to 24. 24 characters gets us 142.90 bits of entropy. We have achieved [boring crypto](http://cr.yp.to/talks/2015.10.05/slides-djb-20151005-a4.pdf) Props @voodooKobra (for the advice on sufficient levels of entropy), @TimothyBJacobs (for the crypto nag)
Previously, if there was no meta value returned, it would be a string, which could cause errors.
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Props @sarciszewski rather -- got his GitHub handle wrong, it's not voodooKobra |
class.application-passwords.php:19:8: error - There must be exactly one blank line before the tags in a doc comment (Generic.Commenting.DocComment.SpacingBeforeTags)
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Just for further information on this front, Google Accounts generated application passwords seem to be only lower-case letters, so just 26^16 -- or 75.21 bits of entropy. |
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Just to confirm, GitHub's personal access tokens are actually 40 character hex strings. So they would have 16^40 entropy, or 160 entropy. Also p. hard to type out places. |
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Increase the entropy to over 128 bits, in order to make trying to crack application passwords sufficiently difficult.
ref: 'boring crypto'