{"action":"created","issue":{"url":"https://api.github.com/repos/hashcat/hashcat/issues/88","repository_url":"https://api.github.com/repos/hashcat/hashcat","labels_url":"https://api.github.com/repos/hashcat/hashcat/issues/88/labels{/name}","comments_url":"https://api.github.com/repos/hashcat/hashcat/issues/88/comments","events_url":"https://api.github.com/repos/hashcat/hashcat/issues/88/events","html_url":"https://github.com/hashcat/hashcat/issues/88","id":125672737,"number":88,"title":"support for RC4 known-plaintext attack","user":{"login":"philsmd","id":921533,"avatar_url":"https://avatars.githubusercontent.com/u/921533?v=3","gravatar_id":"","url":"https://api.github.com/users/philsmd","html_url":"https://github.com/philsmd","followers_url":"https://api.github.com/users/philsmd/followers","following_url":"https://api.github.com/users/philsmd/following{/other_user}","gists_url":"https://api.github.com/users/philsmd/gists{/gist_id}","starred_url":"https://api.github.com/users/philsmd/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/philsmd/subscriptions","organizations_url":"https://api.github.com/users/philsmd/orgs","repos_url":"https://api.github.com/users/philsmd/repos","events_url":"https://api.github.com/users/philsmd/events{/privacy}","received_events_url":"https://api.github.com/users/philsmd/received_events","type":"User","site_admin":false},"labels":[{"id":295417778,"url":"https://api.github.com/repos/hashcat/hashcat/labels/help%20wanted","name":"help wanted","color":"159818","default":true},{"id":307361089,"url":"https://api.github.com/repos/hashcat/hashcat/labels/new%20algorithm","name":"new algorithm","color":"fef2c0","default":false}],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":12,"created_at":"2016-01-08T19:04:31Z","updated_at":"2016-10-30T18:45:34Z","closed_at":null,"body":"This feature request was originally reported on the (now obsolete and offline) **trac** ticketing system of hashcat.net.\n---\n\n| Ticket details: |  |\n| --- | --- |\n| Original reporter (OP): | RC4_Support |\n| Title: | RC4 known-plaintext attack support |\n| Ticket number: | 596 |\n| Date reported: | 2015-03-03T08:36:01+01:00 |\n| **Description**: | [The i]dea [here] is [to implement a] kernel for [a] very generic RC4 plainttext attack.<br><br>We already have some RC4 modules (pdf/office) so we can modify it. How it works? [The u]ser input[s] known bytes before, crypt bytes after (with same length). User set mask with his knowledge about key and that's all.<br><br>Kernel functionality:<br>\\- create RC4 initial state from the custom mask<br>\\- decrypt specified user input with our state (result of step 1)<br>\\- compare result bytes with specified user known-plaintext (if they match, log result, continue, there can be more keys)<br>\\- repeat<br><br>[The i]nput is in hex format. Maybe support for mask comparing? e.g<br>Input: 11 22 33 44<br>Output 11 22 ?? 44 (?? mean[s] that it can be any char, 11 22 55 44 is [for instance a] good result) |\n"},"comment":{"url":"https://api.github.com/repos/hashcat/hashcat/issues/comments/257169908","html_url":"https://github.com/hashcat/hashcat/issues/88#issuecomment-257169908","issue_url":"https://api.github.com/repos/hashcat/hashcat/issues/88","id":257169908,"user":{"login":"bigfella237","id":22144700,"avatar_url":"https://avatars.githubusercontent.com/u/22144700?v=3","gravatar_id":"","url":"https://api.github.com/users/bigfella237","html_url":"https://github.com/bigfella237","followers_url":"https://api.github.com/users/bigfella237/followers","following_url":"https://api.github.com/users/bigfella237/following{/other_user}","gists_url":"https://api.github.com/users/bigfella237/gists{/gist_id}","starred_url":"https://api.github.com/users/bigfella237/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/bigfella237/subscriptions","organizations_url":"https://api.github.com/users/bigfella237/orgs","repos_url":"https://api.github.com/users/bigfella237/repos","events_url":"https://api.github.com/users/bigfella237/events{/privacy}","received_events_url":"https://api.github.com/users/bigfella237/received_events","type":"User","site_admin":false},"created_at":"2016-10-30T18:45:34Z","updated_at":"2016-10-30T18:45:34Z","body":"Sorry if this is a \"newb\" question (and sorry for my impatience) but is there a way to tell if anyone is working on support for this?\r\n\r\nAs above, Hashcat already has some RC4 modules in place for other searches and, although I'm no programmer, it shouldn't be too much work to adapt something to suit our needs?"}}
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