1
vote
3answers
63 views

Does 7zip compression level affect decompression speed?

I have a directory that I would like to password protect and encrypt. I am using PeaZip to do this using 7zip compression. I'd like to use the 7z like a directory and hard drive space is not a ...
1
vote
0answers
969 views

7-zip command line -p switch not working according to help page [Solution Found]

I want to be able to automate the encryption of the file type .pcapng in a windows batch script. My current problem is that I get an error when extracting the encrypted file saying something along the ...
-1
votes
2answers
289 views

Looking for a way to compress, encrypt, split, and upload data on Linux for backups to multiple clouds

As the title says, I'm looking for a way in Ubuntu/Linux to compress, encrypt, split, and upload data for backups across multiple clouds. I have grabbed multiple cloud accounts for free ranging ...
3
votes
1answer
126 views

Is a password protected file compressed with Windows XP built-in compression also encrypted?

This seems like a simple question to find an answer for on Google but I'm having no luck, and when sites do mention anything about it, I fear that they are using "password protect" and "encrypt" ...
1
vote
1answer
2k views

Is there an rsync alternative, that stores compressed and encrypted?

I'm looking for a suitable off-site backup / file synchronization solution. Both local client and remote server run linux. Storage space on the server is limited, bandwidth between client and server ...
1
vote
1answer
717 views

How can I updated an encrypted 7zip archive without losing encryption?

I created a 7zip archive with AES encryption. I included the option to encrypt the filenames. When I updated the file however I am no longer prompted for a password to open the file and can view the ...
7
votes
2answers
21k views

How to set password on already existing winrar archive and encrypt it also?

Not when creating new archive, but on existing archive. I would also like to know how to do that in other archiver.
2
votes
2answers
598 views

NTFS Directory is encrypted AND compressed?

I was running EFSINFO on my WinXP SP3 machine today, trying to find any EFS-encrypted files on the system. Imagine my surprise when I discovered my C:\xampp\htdocs\ directory is both NTFS-compressed ...
5
votes
3answers
4k views

Do encrypted compression containers like ZIP and 7-Zip compress or encrypt first?

The discussion of "compress and then encrypt, or vice-versa" led me to ponder the following question: many compression containers, like ZIP, 7z, and rar support encrypting these containers. For ...
52
votes
6answers
14k views

Compress and then encrypt, or vice-versa?

I am writing a VPN system which encrypts (AES256) its traffic across the net (Why write my own when there are 1,000,001 others already out there? Well, mine is a special one for a specific task that ...
5
votes
3answers
466 views

Need to archive/encrypt 20GB of files

I have 20GB of creative files (flash/photoshop/illustrator) files that i need to ship to someone. Unfortunately, sending thru the internet isn't possible (proxy on both ends, unreliable connections, ...
1
vote
1answer
476 views

Automated backup to JungleDisk-RackSpace cloud

It's quite complicated. (Okay, not that much.) My father is a person who likes the old way, where you store stuff on DVD, BD, HDD. Sad thing that I can't afford a NAS, they just cost way too much. ...
16
votes
2answers
11k views

Is zip's encryption really bad? [closed]

The standard advice for many years regarding compression and encryption has been that the encryption strength of zip is bad. Is this really the case in this day and age? I read this article about ...
2
votes
3answers
8k views

How can I remove the password protection from a RAR archive? [duplicate]

I have a directory in which there are lots of password protected .RAR files/archives. The passwords of these individual archives are known. I want to remove the password protection from all of them ...
1
vote
5answers
737 views

Is there a simple encrypting archiver which is just like WinZip except for the glaring security hole?

I find it quite annoying that WinZip (and 7-zip, etc) does not encrypt the file names in the archive, just the file contents. This is a glaring security hole as the file & folder names can ...