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sha2wordlist.c
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sha2wordlist.c
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/*
* Copyright (c) 2009 Kirei AB. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#ifdef __linux__
#include <bsd/string.h>
#endif
#include "sha2.h"
#define BUFLEN 16384
const char *wordlist_even[] = {
"aardvark", "absurd", "accrue", "acme", "adrift",
"adult", "afflict", "ahead", "aimless", "Algol",
"allow", "alone", "ammo", "ancient", "apple",
"artist", "assume", "Athens", "atlas", "Aztec",
"baboon", "backfield", "backward", "banjo", "beaming",
"bedlamp", "beehive", "beeswax", "befriend", "Belfast",
"berserk", "billiard", "bison", "blackjack", "blockade",
"blowtorch", "bluebird", "bombast", "bookshelf", "brackish",
"breadline", "breakup", "brickyard", "briefcase", "Burbank",
"button", "buzzard", "cement", "chairlift", "chatter",
"checkup", "chisel", "choking", "chopper", "Christmas",
"clamshell", "classic", "classroom", "cleanup", "clockwork",
"cobra", "commence", "concert", "cowbell", "crackdown",
"cranky", "crowfoot", "crucial", "crumpled", "crusade",
"cubic", "dashboard", "deadbolt", "deckhand", "dogsled",
"dragnet", "drainage", "dreadful", "drifter", "dropper",
"drumbeat", "drunken", "Dupont", "dwelling", "eating",
"edict", "egghead", "eightball", "endorse", "endow",
"enlist", "erase", "escape", "exceed", "eyeglass",
"eyetooth", "facial", "fallout", "flagpole", "flatfoot",
"flytrap", "fracture", "framework", "freedom", "frighten",
"gazelle", "Geiger", "glitter", "glucose", "goggles",
"goldfish", "gremlin", "guidance", "hamlet", "highchair",
"hockey", "indoors", "indulge", "inverse", "involve",
"island", "jawbone", "keyboard", "kickoff", "kiwi",
"klaxon", "locale", "lockup", "merit", "minnow",
"miser", "Mohawk", "mural", "music", "necklace",
"Neptune", "newborn", "nightbird", "Oakland", "obtuse",
"offload", "optic", "orca", "payday", "peachy",
"pheasant", "physique", "playhouse", "Pluto", "preclude",
"prefer", "preshrunk", "printer", "prowler", "pupil",
"puppy", "python", "quadrant", "quiver", "quota",
"ragtime", "ratchet", "rebirth", "reform", "regain",
"reindeer", "rematch", "repay", "retouch", "revenge",
"reward", "rhythm", "ribcage", "ringbolt", "robust",
"rocker", "ruffled", "sailboat", "sawdust", "scallion",
"scenic", "scorecard", "Scotland", "seabird", "select",
"sentence", "shadow", "shamrock", "showgirl", "skullcap",
"skydive", "slingshot", "slowdown", "snapline", "snapshot",
"snowcap", "snowslide", "solo", "southward", "soybean",
"spaniel", "spearhead", "spellbind", "spheroid", "spigot",
"spindle", "spyglass", "stagehand", "stagnate", "stairway",
"standard", "stapler", "steamship", "sterling", "stockman",
"stopwatch", "stormy", "sugar", "surmount", "suspense",
"sweatband", "swelter", "tactics", "talon", "tapeworm",
"tempest", "tiger", "tissue", "tonic", "topmost",
"tracker", "transit", "trauma", "treadmill", "Trojan",
"trouble", "tumor", "tunnel", "tycoon", "uncut",
"unearth", "unwind", "uproot", "upset", "upshot",
"vapor", "village", "virus", "Vulcan", "waffle",
"wallet", "watchword", "wayside", "willow", "woodlark",
"Zulu"
};
const char *wordlist_odd[] = {
"adroitness", "adviser", "aftermath", "aggregate", "alkali",
"almighty", "amulet", "amusement", "antenna", "applicant",
"Apollo", "armistice", "article", "asteroid", "Atlantic",
"atmosphere", "autopsy", "Babylon", "backwater", "barbecue",
"belowground", "bifocals", "bodyguard", "bookseller",
"borderline", "bottomless", "Bradbury", "bravado",
"Brazilian", "breakaway", "Burlington", "businessman",
"butterfat", "Camelot", "candidate", "cannonball",
"Capricorn", "caravan", "caretaker", "celebrate",
"cellulose", "certify", "chambermaid", "Cherokee",
"Chicago", "clergyman", "coherence", "combustion",
"commando", "company", "component", "concurrent",
"confidence", "conformist", "congregate", "consensus",
"consulting", "corporate", "corrosion", "councilman",
"crossover", "crucifix", "cumbersome", "customer", "Dakota",
"decadence", "December", "decimal", "designing", "detector",
"detergent", "determine", "dictator", "dinosaur",
"direction", "disable", "disbelief", "disruptive",
"distortion", "document", "embezzle", "enchanting",
"enrollment", "enterprise", "equation", "equipment",
"escapade", "Eskimo", "everyday", "examine", "existence",
"exodus", "fascinate", "filament", "finicky", "forever",
"fortitude", "frequency", "gadgetry", "Galveston",
"getaway", "glossary", "gossamer", "graduate", "gravity",
"guitarist", "hamburger", "Hamilton", "handiwork",
"hazardous", "headwaters", "hemisphere", "hesitate",
"hideaway", "holiness", "hurricane", "hydraulic",
"impartial", "impetus", "inception", "indigo", "inertia",
"infancy", "inferno", "informant", "insincere", "insurgent",
"integrate", "intention", "inventive", "Istanbul",
"Jamaica", "Jupiter", "leprosy", "letterhead", "liberty",
"maritime", "matchmaker", "maverick", "Medusa", "megaton",
"microscope", "microwave", "midsummer", "millionaire",
"miracle", "misnomer", "molasses", "molecule", "Montana",
"monument", "mosquito", "narrative", "nebula", "newsletter",
"Norwegian", "October", "Ohio", "onlooker", "opulent",
"Orlando", "outfielder", "Pacific", "pandemic", "Pandora",
"paperweight", "paragon", "paragraph", "paramount",
"passenger", "pedigree", "Pegasus", "penetrate",
"perceptive", "performance", "pharmacy", "phonetic",
"photograph", "pioneer", "pocketful", "politeness",
"positive", "potato", "processor", "provincial",
"proximate", "puberty", "publisher", "pyramid", "quantity",
"racketeer", "rebellion", "recipe", "recover", "repellent",
"replica", "reproduce", "resistor", "responsive",
"retraction", "retrieval", "retrospect", "revenue",
"revival", "revolver", "sandalwood", "sardonic", "Saturday",
"savagery", "scavenger", "sensation", "sociable",
"souvenir", "specialist", "speculate", "stethoscope",
"stupendous", "supportive", "surrender", "suspicious",
"sympathy", "tambourine", "telephone", "therapist",
"tobacco", "tolerance", "tomorrow", "torpedo", "tradition",
"travesty", "trombonist", "truncated", "typewriter",
"ultimate", "undaunted", "underfoot", "unicorn", "unify",
"universe", "unravel", "upcoming", "vacancy", "vagabond",
"vertigo", "Virginia", "visitor", "vocalist", "voyager",
"warranty", "Waterloo", "whimsical", "Wichita",
"Wilmington", "Wyoming", "yesteryear", "Yucatan"
};
int
hex2int(char hc)
{
if (hc >= '0' && hc <= '9')
return hc - '0';
if (hc >= 'A' && hc <= 'F')
return hc - 'A' + 10;
if (hc >= 'a' && hc <= 'f')
return hc - 'a' + 10;
return 0;
}
void
pgp_wordlist(const char *str, char *buf, size_t bufsize)
{
int i;
int b;
size_t nwords;
nwords = strlen(str) / 2;
buf[0] = '\0';
for (i = 0; i < nwords; i++) {
b = (hex2int(str[i*2]) << 4) + hex2int(str[i*2+1]);
if (i % 2)
strlcat(buf, wordlist_odd[b], bufsize);
else
strlcat(buf, wordlist_even[b], bufsize);
if (i != nwords-1)
strlcat(buf, " ", bufsize);
}
}
int
main(int argc, char **argv)
{
int fd;
ssize_t nbytes;
SHA256_CTX ctx256;
char hash[BUFLEN];
char words[BUFLEN];
fd = fileno(stdin);
SHA256_Init(&ctx256);
while ((nbytes = read(fd, hash, BUFLEN)) > 0)
SHA256_Update(&ctx256, (unsigned char *) hash, nbytes);
SHA256_End(&ctx256, hash);
pgp_wordlist(hash, words, sizeof(words));
printf("SHA-256: %s\n", hash);
printf("PGP Words: %s\n", words);
exit(0);
}