To create an encrypted zip file with zip: $ zip -password MY_SECRET secure.zip doc.pdf doc2.pdf doc3.pdf Also, the fact that the password is typed and shown in plain text makes it even more vulnerable. The PKZIP algorithm is known to be insecure. The encryption algorithm used by zip command is PKZIP stream cipher. The zip command line tool provides an encryption option. In this tutorial, I will describe how to create an encrypted zip file on Linux. On Linux, there are several ways to encrypt and password protect a zip file. Suppose you want to create a zip archive, but with password protection, so that whoever tries to uncompress the zip file must know the right password. Windows 10 still does not appear to natively support Zip AES encryption, whether it is PKWARE AES 256 or WinZip AES 256.How to create an encrypted zip file on Linux The password that you typed is not correct. While the pkAES-256 file simply keeps thinking I'm giving it an invalid password:
The destination file could not be created. In both cases my Windows 10 Home version 20H2 cannot decrypt it. It was made by an evaluation version of PKZIP and has 0x10 0圆6 for the Algorithm ID (according to PKZIP), and testing with 7zip's command line revealed: 7z l -slt pkzip.zipĬharacteristics = NTFS StrongCrypto : Encrypt StrongCrypto UTF8Ĭompare to a 7zip encrypted zip with AES 256 which uses WinZip AES 256 algorithm and has 0x03 0x08 for the Algorithm ID (according to PKZIP). I tested a PKWARE AES 256 encrypted zip file. The file format is the same, but the exact encryption implementation used by the PKZip application are different. The question, though old, asked about PKZip format so I thought I'd test the AES 256 encryption method used by PKZIP instead of WinZip/7zip since they are different and also not the same as traditional "ZipCrypto" referenced by 7zip.
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