| blob | bd638de09106511718eb225b72a0e3a70c2e41b4 |
1 /*
2 * English words for generation of easy to memorize random passphrases.
3 * This list comes from the MakePass passphrase generator developed by
4 * Dianelos Georgoudis <dianelos at tecapro.com>, which was announced on
5 * sci.crypt on 1997/10/24. Here's a relevant excerpt from that posting:
6 *
7 * > The 4096 words in the word list were chosen according to the following
8 * > criteria:
9 * > - each word must contain between 3 and 6 characters
10 * > - each word must be a common English word
11 * > - each word should be clearly different from each other
12 * > word, orthographically or semantically
13 * >
14 * > The MakePass word list has been placed in the public domain
15 *
16 * At least two other sci.crypt postings by Dianelos Georgoudis also state
17 * that the word list is in the public domain, and so did the web page at:
18 *
19 * https://web.archive.org/web/%2a/http://www.tecapro.com/makepass.html
20 *
21 * which existed until 2006 and is available from the Wayback Machine as of
22 * this writing (March 2010). Specifically, the web page said:
23 *
24 * > The MakePass word list has been placed in the public domain. To download
25 * > a copy click here. You can use the MakePass word list for many other
26 * > purposes.
27 *
28 * "To download a copy click here" was a link to free/makepass.lst, which is
29 * currently available via the Wayback Machine:
30 *
31 * https://web.archive.org/web/%2a/http://www.tecapro.com/free/makepass.lst
32 *
33 * Further lists of common English words were appended to the end to allow for
34 * subsequent removal of "inappropriate" words from the initial list.
35 *
36 * Even though the original description of the list stated that "each word
37 * must contain between 3 and 6 characters", there were two 7-character words.
38 * These have been removed.
39 *
40 * Many "inappropriate" words have then been moved to near the end of list, so
41 * that they're not used for generated passphrases.
42 *
43 * The code in passwdqc_check.c and passwdqc_random.c makes the following
44 * assumptions about this list:
45 *
46 * - the first 4096 words are for random passphrase generation, and there are
47 * at least this many words present;
48 * - the words are of up to 6 characters long;
49 * - although some words may contain capital letters, no two words differ by
50 * the case of characters alone (e.g., converting the list to all-lowercase
51 * would yield a list of as many unique words);
52 * - the words contain alphabetical characters only;
53 * - if an entire word on this list matches the initial substring of other
54 * word(s) on the list, it is likely placed immediately before those words
55 * (e.g., "bake", "baker", "bakery"), which speeds up the "word-based" check.
56 *
57 * Additionally, the default minimum passphrase length of 11 characters
58 * specified in passwdqc_parse.c has been chosen such that a passphrase
59 * consisting of any three words from this list with two separator
60 * characters will pass the minimum length check. In other words, this
61 * default assumes that no word is shorter than 3 characters.
62 */
6278 #if 0 /* obsolete, dialectal, and non-words from gutenberg-19xx-lowercase-words-1000plus.txt */
6295 #endif
6297 };