S!x0r's Crackme#4 by S!x0r
| Download Crackme#4_S!x0r.tar.gz, 15 kb Hi everybody!
Difficulty: 3 - Getting harder | RatingWaiting for at least 3 votes View profile of S!x0r » |
Solutions
Solution by acruel, published 22. feb, 2016; download (2 kb), password: crackmes.de or browse.
acruel has not rated this crackme yet.
Discussion and comments
| acruel 18. Feb, 10:28 | Is brute-force necessary? |
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| S!x0r Author 18. Feb, 10:59 | Hi acruel, brut-force isn't necessary. |
| acruel 18. Feb, 11:41 | @S!x0r That's nice. I'll post a solution later ;) |
| acruel 20. Feb, 07:02 | I'm stuck. Trying to compute a discrete logarithm of a number, which is too big to compute on my MBP. Is there a way to avoid doing it? |
| S!x0r Author 20. Feb, 08:48 | You can use this calculator... http://magma.maths.usyd.edu.au/calc/ It computes the discrete logarithm in seconds. eg. p := 123; K := GF(p); g := K ! 456; y := K ! 789; x := Log(g, y); x; Replace p, g and y with your values in base 10. |
| acruel 20. Feb, 09:04 | Great. It's blazing fast. I tested the same combination of p,g and y on wolfram, but it took forever to compute. |
| S!x0r Author 20. Feb, 10:05 | I've never used wolfram :) Yes, magma is fast. |
| acruel 20. Feb, 11:56 | Just posted a solution. Thanks for your help, S!x0r. acruel E72979218016C452-65331190F912E106 |
| S!x0r Author 20. Feb, 13:28 | @acruel Your key works fine. I'll read your solution, then. |
| S!x0r Author 06. Mar, 11:47 | Thanks for your solution, acruel! |
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