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Java Forum / General / September 2007how to deal with encrypted zip in JAVA?
Now I has a zip file and I want to know how to encrypt it with normal zip-encrypted in java then users will be prompted to input the password when it is opened with WinZip or WinRAR. I have tried with org.apache.fulcrum.jce.crypto but it can not be opened with WinZip. >Now I has a zip file and I want to know how to encrypt it with normal >zip-encrypted in java then users will be prompted to input the >password when it is opened with WinZip or WinRAR. >I have tried with org.apache.fulcrum.jce.crypto but it can not be >opened with WinZip. see http://mindprod.com/jgloss/zip.html#ENCRYPTION  SignatureRoedy Green Canadian Mind Products The Java Glossary http://mindprod.com Thanks! I've seen http://mindprod.com/jgloss/zip.html#ENCRYPTION , but it seems that JCE doesn't suppots the ZIP2.0, I have to use ZIP2.0 to encrypt zip files. Do you have any other methods? >Thanks! >I've seen http://mindprod.com/jgloss/zip.html#ENCRYPTION , >but it seems that JCE doesn't suppots the ZIP2.0, >I have to use ZIP2.0 to encrypt zip files. >Do you have any other methods? Sit down. I have bad news. What you will need to do is encrypt on an element by element basis. You are not going to get code that WinZip can encrypt. You will need your code at the other end to decrypt. SignatureRoedy Green Canadian Mind Products The Java Glossary http://mindprod.com Thanks again! so you can tell me where to find docs about zip 2.0 encryption arithmetic, I mean if it's possible that I write codes to implements encryption and decryption? >Thanks again! >so you can tell me where to find docs about zip 2.0 encryption >arithmetic, >I mean if it's possible that I write codes to implements encryption >and decryption? See http://mindprod.com/jgloss/zip.html Follow the link to the file format. SignatureRoedy Green Canadian Mind Products The Java Glossary http://mindprod.com Free MagazinesGet these publications absolutely FREE for up to 12 months. There are no hidden fees and no obligation. Simply choose a title, complete the application form and submit it. Read more ...
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