Otherwise you won’t get good names from your output. While you could take existing letter probability from the English language, it is very important that make your own probability tables created from your own sample data. Something that says the letter A has 50% chance of being followed by E and 50% of being followed by F.
These indicate the probability of a letter following another letter. The proper technique consist of parsing a text file to create probability tables.
Stringing random letters together would give you something like: “dkwidfjwz”, which isn’t very convincing. Here is a sample of random male fantasy names generated with the technique I will describe: If you rather want to create some made-up name, like one you could find in a fantasy novel, video game or sci-fi movie and you want it to be random, then you need to use an algorithm. You just take a big list of names (like from the US census) and draw one out at random. Returning a random “normal” name is pretty easy (ie: John, Robert, Stacy). The goal was to have the algorithm produce a new random name each time it was called. Var val = base32chars.indexOf(base32.charAt(i).toUpperCase()) īits += leftpad(val.toString(2), 5, '0') įor(var i = 0 i + 4 <= bits.I recently wanted to create an algorithm that could generate random fantasy names. Var base32chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZ234567" The code changes based on the machines system time so it is important the web service and device have accurate times configured.Ī complete and working version of my code can be seen below: This six digit code is determined based on a secret key that both you and the web service share. You enter your normal username and password followed by a six digit code that changes every thirty seconds. Two-factor authentication is an extra layer of security that many web services offer. JavaScript doesn’t natively have one, but lucky for us there is a great open source library called jsSHA that we can use.Ī little background on two-factor authentication and time-based one-time passwords in general. Using the following resources as our framework, we can make use of the TOTP algorithm quickly and easily:įor TOTP to work, we are going to need to make use of an HMAC function. How exactly, does this algorithm work, and how can we make it work with JavaScript? OTP Safe makes use of the time-based one-time password ( TOTP) algorithm commonly used with two-factor authentication ( 2FA). I recently released an iOS and Android application called OTP Safe to iTunes and Google Play.
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