Mnemonic Words
This ruby gem was inspired by the xkcd comic ("correct horse battery staple") on password strength:
If you believe lists of words are easier to remember than a long number or random string, why not represent numbers as lists of words? And while you're at it, you might as well do some error detection.
Sample Usage
$ irb
2.0.0dev :001 > mw = MnemonicWords.new(
2.0.0dev :002 > (0..9999999999), # Specify valid range is ten digits
2.0.0dev :003 > 0.01 # Maximum chance of undetected error is <= 0.01
2.0.0dev :004?> )
< n: 4, -log10(p): 3.489438330097295 > # Will create 4-word representation with
# probability of undetected error <= 10 ^ -3.48...
2.0.0dev :005 > mw.encode(4155551212) # Encode a US phone number as a list of words
"muscle hesitate trust two"
2.0.0dev :006 > mw.decode("muscle hesitate trust two") # Decode into an integer
4155551212
2.0.0dev :007 > mw.decode("muscle hesitate two trust") # Introduce an error
nil # If an error is detected, result is nilCredits
Special thanks to Alan Blanchard, Jon Hamkins, and Clark Brooks for helping me think through the error detection stuff.
Donations
Bitcoin donation address: 1MWeioFdnwFZC8eqJwxjKcA3SErKxEBu8V