Date: Sat, 19 May 2012 08:20:06 -0700 (PDT) From: NeonFlash <psykosonik_frequenz@...oo.com> To: "john-users@...ts.openwall.com" <john-users@...ts.openwall.com> Subject: SHA1-Gen / Dynamic_25 Hashes I am not clear what is going wrong here. Trying to crack hashes that have the SMF Forum format: sha1(strtolower($user),$pass) and this matches, sha1($salt,$pass) The username is the salt in this case. Ofcourse, I have converted the usernames to lowercase. I have tried both SHA1-gen and Dynamic_25 subformat, but it does not work for me. I do not get any error message, the hashing process shows no cracked hashes. Please note: I know the passwords already and they are present in the wordlist I am using. Using JTR verison: 1.7.9-jumbo-5 Here are the command line syntaxes. "xxx" is the username or salt in this case. Case 1: john --format=sha1-gen --field-separator-char=" " -w:wordlist.txt hashes.txt The hashes are stored in the following format: xxx $SHA1s$xxx$abac710fda8befcb4b8f3e96fb27a54f271b70a4 Case 2: john --format=sha1-gen w-:wordlist.txt hashes.txt Hashes are stored in the format: $SHA1s$xxx$abac710fda8befcb4b8f3e96fb27a54f271b70a4 Case 3: john --subformat=dynamic_25 --field-separator-char=" " -w:wordlist.txt hashes.txt Hashes are stored in the format: Case 4: xxx $dynamic_25$xxx$abac710fda8befcb4b8f3e96fb27a54f271b70a4 john --format=dynamic_25 -w:wordlist.txt hashes.txt Hashes are stored in the format: $dynamic_25$xxx$abac710fda8befcb4b8f3e96fb27a54f271b70a4 As an example to show the output, for Case 1, I see: using field sep char ' ' (0x20) Loaded 6384 password hashes with 6384 different salts (Generic salted SHA-1 [32/ 32]) This is weird. My Processor is: AMD Athlon II X2 260 Processor 3.2 Ghz OS: Windows 7 Ultimate, 64 bit Thanks.
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