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Decryption in zip file

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Decryption in zip file, crc32(key(0),char)

michaelfung	8 Jun, 2005 - 01:44 AM Post #1
New D.I.C Head Joined: 8 Jun, 2005 Posts: 2	hi, i'm currently making a php to unzip zip files on a server. I've come accross some zip files that is encrypted with traditional PKWARE Encryption. Although this document provides the pseudo code to decrypt the files, i cannot successfully change it into php. The main problem is that it needs a function called crc32(key(0),char) and i don't know how to write this function out. Please help me. Thank you very much.
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Nova Dragoon	8 Jun, 2005 - 07:14 AM Post #2
The Innocent Shall Suffer, Big Time Joined: 16 Aug, 2001 Posts: 6,128 Thanked 4 times Dream Kudos: 515 Expert In: Python, Linux My Contributions	PHP has a crc32 function, however it does not take 2 arguments http://us3.php.net/crc32
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michaelfung	8 Jun, 2005 - 10:43 AM Post #3
New D.I.C Head Joined: 8 Jun, 2005 Posts: 2	I've tried crc32(str1.str2) and crc32(str2.str1) but both of them do not give a correct result.
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