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Ability of using any compression, conversion or encryption method.

MIME type used for 7z files: application/x-lzma The main features of 7z file format: To increase the cost of an exhaustive search to crack a password, 7-Zip uses a large number of iterations when it produces a cipher key from a password.ħz file format was developed as as part of the 7-Zip compression utility distributed under the GNU LGPL.

A key derivation function produces a derived key from the text password entered by the user. To create that key, 7-Zip runs a derivation function based on a SHA-256 hash algorithm. This algorithm uses a cipher key with a length of 256 bits. The 7z file extension is used for native file format of 7-ZIP archiver.ħz is the new backup and archive file format, providing high compression ratio.ħ-Zip supports encryption with the AES-256 algorithm.