Convert a hash or GUID to human-readable words

Quick example

const HexToWords = require('guid-in-words');

// Outputs:
// "same clear voice happen security sign feel option finger debate almost popular young party public easy"
HexToWords.toWords('159c1abd31af380fa31733f06eed89b8');

// Outputs "159c1abd31af380fa31733f06eed89b8":
HexToWords.toHexString('same clear voice happen security sign feel option finger debate almost popular young party public easy');

Idea

Hashes, GUIDs or other long hex strings are difficult to read and copy for humans.

Instead, you can present a hash, GUID, password or recovery phrase as a sequence of human-readable words.

This module is using a small dictionary of 256 common words that do not have strongly negative connotations (such as "death" or "catastrophe"). Since the dictionary is small, you can easily review it in the source code. On the other hand, this has a disadvantage of having too many words: one GUID or MD5 hash is reprented by 16 words.

Methods

All methods in the class are static.

Converters

toWords(hexString) - converts a hex string to words. The string can be uppercase hex ('48D7A7') or lowercase hex ('48d7a7'). Empty string is returned if the input is null, undefined, empty string or not a string. An exception is thrown if the string contains illegal characters (anythng except 0-9a-f).
toHexString(words) - converts a sequence of words into a lowercase hex string. words can be an array of strings or a string containing space-separated words. Throws an exception if the input is not an array or string, or if a word that is not in the dictionary.

GUID and hashes

randomGuid() - generates a random GUID (lowercase, no dashes), converts it to words and returns both as an object containing guid and words as a string.
md5(string), sha256(string) - generates a hash of the given string, and returns both as an object containing hash and words.

const HexToWords = require('guid-in-words');

HexToWords.md5('test');
/* Returns:
{ hash: '098f6bcd4621d373cade4e832627b4f6',
  words: 'represent commercial watch product necessary provide final mind trade identify idea occur mother nature leader agreement' }
*/

HexToWords.randomGuid();
/* Returns:
{ guid: 'e17b0f7f102c4c16b0dbe1e79e2912b6',
  words: 'key fill option economy year rule sport newspaper future enjoy key strong describe plant beat especially' }
*/

Feedback

Reports, suggestions and pull requests are welcome on Github.