Coding and Decoding MD5 / SHA-1, CRC32 Sum, Brut Force, Generation of Word of the Sheet
MD5 - The MD5 algorithm is a 128-bit hash algorithm. This means that it calculates a 128-bit hash for an arbitrary set of data arriving at its input. It is intended for creation of "prints" or digests of the message of any length and the subsequent check of their authenticity.
This algorithm was developed by Professor Ronald Rivest of the Massachusetts Institute of Technology in 1991 to replace the less reliable predecessor - MD4. The algorithm was first published in April 1992 in RFC 1321. After that, MD5 was used to solve a variety of tasks, from hashing passwords to CMS to creating digital signatures and SSL certificates.
The MD5 algorithm is vulnerable to some attacks, for example, it is possible to create two messages with the same hash sum, so its use is not recommended. Alternatives are the algorithms of the SHA-2 family.
Hashing with MD5 / SHA-1 and CRC32 checksum
MD5 (Message Digest 5) - 128-bit hash algorithm. MD5 allows you to obtain a relatively reliable identifier for a data block. This property of the algorithm is widely used in various areas, including hashing passwords. The hash contains 128 bits (16 bytes) and is usually represented as a sequence of 32 hexadecimal digits.
SHA-1 (Secure Hash Algorithm 1) is a cryptographic hashing algorithm. For an arbitrary length of input message, the algorithm generates a 160-bit hash value, also called a message digest. Used in many cryptographic applications and protocols.
The tool allows you to get the MD5 and SHA-1 hash and calculate the checksum using the CRC32 algorithm of any string.
Decoding of MD5 hashes by the method of password collection (brute force)
A full search (or "brute force " method ) is a method of solving a problem by looking through all possible options. The complexity of a complete search depends on the number of all possible solutions of the problem. If the solution space is very large, a full search can not yield results for several years or even centuries.
In the "Symbols" line, enter the characters that make up the encoded word or use the current ones.
In the line "Length of a word" it is necessary to choose the possible length of the searched word.
Clicking on the DECODING will get the result as a file.
Generation of Word Words
In the line "Length of the word", specify the length of the words to be composed.
Click on GENERATION to get the result as a file.
!! Caution: Generating a sheet from a large set of letters takes more than 15 minutes.
If you decide to do this, do not refresh the page after clicking on the button!
And it's better not to do this, since we'll just bury you forever
Hashes of the most frequently used passwords
Password | MD5 hash |
0 | Cfcd208495d565ef66e7dff9f98764da |
000 | C6f057b86584942e415435ffb1fa93d4 |
007 | 9e94b15ed312fa42232fd87a55db0d39 |
1 | C4ca4238a0b923820dcc509a6f75849b |
111 | 698d51a19d8a121ce581499d7b701668 |
123 | 202cb962ac59075b964b07152d234b70 |
123456 | E10adc3949ba59abbe56e057f20f883e |
123123 | 4297f44b13955235245b2497399d7a93 |
12345 | 827ccb0eea8a706c4c34a16891f84e7b |
Qwe | 76d80224611fc919a5d54f0ff9fba446 |
Qweqwe | Efe6398127928f1b2e9ef3207fb82663 |
Asd | 7815696ecbf1c96e6894b779456d330e |
Asdasd | A8f5f167f44f4964e6c998dee827110c |
Asdf | 912ec803b2ce49e4a541068d495ab570 |
Zxc | 5fa72358f0b4fb4f2c5d7de8c9a41846 |
Zxczxc | Ecb97ffafc1798cd2f67fcbc37226761 |
Zxcvb | Eb89f40da6a539dd1b1776e522459763 |
Zxcvbn | B427ebd39c845eb5417b7f7aaf1f9724 |
Zxcv | Fd2cc6c54239c40495a0d3a93b6380eb |
Admin | 21232f297a57a5a743894a0e4a801fc3 |
Administrator | 200ceb26807d6bf99fd6f4f0d1ca54d4 |
Admin | E3afed0047b08059d0fada10f400c1e5 |
Administrator | 7b7bc2512ee1fedcd76bdc68926d4f7b |
Gfhjkm | D9d1b168eac8f197e0576b56cfc23ece |
Flvby | 3a28525729392f0746380a44b200bb21 |
Flvbybcnhfnjh | 8b7d272b7b9177fcac0d38aa06f4ab99 |
Gfhjkm | D9d1b168eac8f197e0576b56cfc23ece |
Ghbdtn | 2a3dfa66c2d8e8c67b77f2a25886e3cf |
Qwerty | D8578edf8458ce06fbc5bb76a58c5ca4 |
Test | 098f6bcd4621d373cade4e832627b4f6 |
Pass | 1a1dc91c907325c69271ddf0c944bc72 |
Vfif | F86eb133aea0114a01595cac67dbcb17 |
Lbvf | 40f1b6d9156fb4c5c93c60b79667c0b7 |
Ybrbnf | 79f0c81692f7d073c7d5f713b78124eb |
Dfcz | D9d53ccc12ebe52f20aca9077a992b09 |
Gfif | Cb7347eb95885a2f1ef3036057bfe2b5 |
C822c1b63853ed273b89687ac505f9fa | |
Ueukm | Fee2125a43bcb6e04814160d4ea0dccd |
Vjcrdf | 4ada42a5a7ca1ffff1632a6f812f0599 |
Vjcrdf | 77af9af7ebfba6070e0b29d34d4d5327 |
, Fhfrelf | 464f677bc2a846d08cb5c64bc63c1dee |
Frekf | 94b1c676abcd33c1af912cdc0bd84958 |
Zyltrc | F2e1189d0d738b2d692a76685b949e5a |
Gbljhfcs | 1b281e2f8ae07815a00de53192d618aa |
Ehjls | 10cab130d6d53689e0c7f60c094431f6 |
, Kzlm | 985a1978be91d7abfb7065bb15c91a61 |
, Kby | Ff7087f014ceb8d7a48b5f9dff09e876 |
Rfr ltkf | 2e4dc7d9e7e84a08507443fc046adf30 |
Lehfr | B35217036f336fe4c686b52685c2d2c6 |
Lehf | 4233c3889e28db97475d062682e91f53 |
Cbcntvfc | 21881c7e863d8db5770ed0904b15e624 |
; Jgf | D3f47852e1445cba95855825b789ce02 |
Gfhjkmxbr | 987cadce9ef28e63f7cdba0b66eb1371 |
Password selection on md5 [php] script
<?php
// Устанавливаем неограниченное время выполнения скрипта
set_time_limit ( 0 );
// Читаем пароли из файла password
$pass = file ( "password.txt" );
foreach( $pass as $password )
{
// Замеряем время, затраченное на подбор пароля
$begin = time ();
echo decrypt_md5 ( trim ( $password ), "" );
$end = time ();
echo " (На подбор затрачено " .( $end - $begin ). " секунд) <br>" ;
}
// Функция посимвольного перебора пароля
// $pass - расшифровываемый пароль
// $answer - текущий ответ, при первом вызове - пустая строка
function decrypt_md5 ( $pass , $answer )
{
$arr = array( 'a' , 'b' , 'c' , 'd' , 'e' , 'f' ,
'g' , 'h' , 'i' , 'j' , 'k' , 'l' ,
'm' , 'n' , 'o' , 'p' , 'q' , 'r' , 's' ,
't' , 'u' , 'v' , 'w' , 'x' , 'y' , 'z' );
// Будем считать, что пароль не превышает
// 4 символов
$max_number = 3 ;
if( strlen ( $answer ) > $max_number ) return;
for( $j = 0 ; $j < count ( $arr ); $j ++)
{
$temp = $answer . $arr [ $j ];
if( md5 ( $temp ) == $pass ) return $temp ;
// Рекурсивно вызываем фукнцию для увеличения
// длины подбираемого пароля
$result = decrypt_md5 ( $pass , $temp );
// Если функция возвращает непустую строку,
// следовательно, найден ответ и дальше искать
// не следует
if( strlen ( $result ) > 0 ) return $result ;
}
}
?>
If the password is fairly simple, then using this script you can quickly pick it up on md5 hash.
For example, a password of 5 characters in length, consisting of digits and lowercase Latin letters, was selected for 10 minutes.
Ad0234829205b9033196ba818f7a872b cracked test2 (755 seconds spent on selection)
If necessary, you can configure the maximum length of the password to be selected in the script, as well as edit the array of characters used for selection.
In general, I have already formatted the array, you can only add Latin characters to the large register, that the campaign will increase the work of the script by about 2 times, but the chances to pick up the password will be much higher.
By the way: Hash is saved to the root directory in the file password.txt
The script is more for learning purposes than for practical ones.
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