How do I create a store-only AES256 7zip archive from linux/macOS command line?
Creating an encrypted store-only archive seems to be possible through the GUI variants that delegate to 7zip, but I can't figure out the proper command line call.
My failed attempts result in E_INVALIDARG:
7za a ~/Desktop/tmp.7z my-big-file -em=AES256 -pMyPass -m0=Copy
linux command-line 7-zip
asked Mar 15 '17 at 15:25
Jack WadeJack Wade
1111
add a comment |
Creating an encrypted store-only archive seems to be possible through the GUI variants that delegate to 7zip, but I can't figure out the proper command line call.
My failed attempts result in E_INVALIDARG:
7za a ~/Desktop/tmp.7z my-big-file -em=AES256 -pMyPass -m0=Copy
linux command-line 7-zip
asked Mar 15 '17 at 15:25
Jack WadeJack Wade
1111
In Ubuntuman 7zashows the zip file name and the file list as coming after the options.
– AFH
Mar 15 '17 at 15:42
1
Just FYI... here's an answer with a 7z and 7za general comparison.: superuser.com/questions/1105516/comparing-7z-exe-and-7za-exe/…. Try it as....7za a -mhe=on -pMyPass ~/Desktop/tmp.7z my-big-fileand then check to confirm it's 256 bit AES encrypted: linux.die.net/man/1/7za
– Pimp Juice IT
Mar 15 '17 at 16:16
What did you determine with this @JackWade?
– Pimp Juice IT
Apr 28 '17 at 1:10
add a comment |
Creating an encrypted store-only archive seems to be possible through the GUI variants that delegate to 7zip, but I can't figure out the proper command line call.
My failed attempts result in E_INVALIDARG:
7za a ~/Desktop/tmp.7z my-big-file -em=AES256 -pMyPass -m0=Copy
linux command-line 7-zip
asked Mar 15 '17 at 15:25
Jack WadeJack Wade
1111
Creating an encrypted store-only archive seems to be possible through the GUI variants that delegate to 7zip, but I can't figure out the proper command line call.
My failed attempts result in E_INVALIDARG:
7za a ~/Desktop/tmp.7z my-big-file -em=AES256 -pMyPass -m0=Copy
linux command-line 7-zip
linux command-line 7-zip
asked Mar 15 '17 at 15:25
Jack WadeJack Wade
1111
asked Mar 15 '17 at 15:25
Jack WadeJack Wade
1111
asked Mar 15 '17 at 15:25
Jack WadeJack Wade
1111
asked Mar 15 '17 at 15:25
Jack WadeJack Wade
1111
asked Mar 15 '17 at 15:25
Jack WadeJack Wade
1111
1111
In Ubuntuman 7zashows the zip file name and the file list as coming after the options.
– AFH
Mar 15 '17 at 15:42
1
Just FYI... here's an answer with a 7z and 7za general comparison.: superuser.com/questions/1105516/comparing-7z-exe-and-7za-exe/…. Try it as....7za a -mhe=on -pMyPass ~/Desktop/tmp.7z my-big-fileand then check to confirm it's 256 bit AES encrypted: linux.die.net/man/1/7za
– Pimp Juice IT
Mar 15 '17 at 16:16
What did you determine with this @JackWade?
– Pimp Juice IT
Apr 28 '17 at 1:10
add a comment |
In Ubuntuman 7zashows the zip file name and the file list as coming after the options.
– AFH
Mar 15 '17 at 15:42
1
Just FYI... here's an answer with a 7z and 7za general comparison.: superuser.com/questions/1105516/comparing-7z-exe-and-7za-exe/…. Try it as....7za a -mhe=on -pMyPass ~/Desktop/tmp.7z my-big-fileand then check to confirm it's 256 bit AES encrypted: linux.die.net/man/1/7za
– Pimp Juice IT
Mar 15 '17 at 16:16
What did you determine with this @JackWade?
– Pimp Juice IT
Apr 28 '17 at 1:10
In Ubuntu
man 7za shows the zip file name and the file list as coming after the options.– AFH
Mar 15 '17 at 15:42
In Ubuntu
man 7za shows the zip file name and the file list as coming after the options.– AFH
Mar 15 '17 at 15:42
1
1
Just FYI... here's an answer with a 7z and 7za general comparison.: superuser.com/questions/1105516/comparing-7z-exe-and-7za-exe/…. Try it as....
7za a -mhe=on -pMyPass ~/Desktop/tmp.7z my-big-file and then check to confirm it's 256 bit AES encrypted: linux.die.net/man/1/7za– Pimp Juice IT
Mar 15 '17 at 16:16
Just FYI... here's an answer with a 7z and 7za general comparison.: superuser.com/questions/1105516/comparing-7z-exe-and-7za-exe/…. Try it as....
7za a -mhe=on -pMyPass ~/Desktop/tmp.7z my-big-file and then check to confirm it's 256 bit AES encrypted: linux.die.net/man/1/7za– Pimp Juice IT
Mar 15 '17 at 16:16
What did you determine with this @JackWade?
– Pimp Juice IT
Apr 28 '17 at 1:10
What did you determine with this @JackWade?
– Pimp Juice IT
Apr 28 '17 at 1:10
add a comment |
2 Answers
2
active
oldest
votes
I've just had to deal with this myself, I didn't find the manual to be perfectly clear on how to use Method Parameters.
Encryption Type is a Method Parameter and needs to be passed as part of an -m switch, e.g.: -mem=AES256.
Similarly, if you want to do Copy Only (no compression), you need to use -mx=0.
7za a ~/Desktop/tmp.7z my-big-file -mem=AES256 -mx=0 -pMyPass
answered Oct 31 '17 at 22:26
Zac FaragherZac Faragher
1114
And does this command (with the options after the filenames) actually work?
– G-Man
Oct 31 '17 at 22:35
Works for me just fine on Windows, I imagine it would work in iOS/Unix.
– Zac Faragher
Oct 31 '17 at 22:49
add a comment |
I used 7z a -t7z -m0=Copy -mhe=on -pPassword archive.7z foldername to get around the E_INVALIDARG error.
answered Feb 25 at 10:07
user3248784user3248784
213
add a comment |
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2 Answers
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2 Answers
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I've just had to deal with this myself, I didn't find the manual to be perfectly clear on how to use Method Parameters.
Encryption Type is a Method Parameter and needs to be passed as part of an -m switch, e.g.: -mem=AES256.
Similarly, if you want to do Copy Only (no compression), you need to use -mx=0.
7za a ~/Desktop/tmp.7z my-big-file -mem=AES256 -mx=0 -pMyPass
answered Oct 31 '17 at 22:26
Zac FaragherZac Faragher
1114
And does this command (with the options after the filenames) actually work?
– G-Man
Oct 31 '17 at 22:35
Works for me just fine on Windows, I imagine it would work in iOS/Unix.
– Zac Faragher
Oct 31 '17 at 22:49
add a comment |
I've just had to deal with this myself, I didn't find the manual to be perfectly clear on how to use Method Parameters.
Encryption Type is a Method Parameter and needs to be passed as part of an -m switch, e.g.: -mem=AES256.
Similarly, if you want to do Copy Only (no compression), you need to use -mx=0.
7za a ~/Desktop/tmp.7z my-big-file -mem=AES256 -mx=0 -pMyPass
answered Oct 31 '17 at 22:26
Zac FaragherZac Faragher
1114
And does this command (with the options after the filenames) actually work?
– G-Man
Oct 31 '17 at 22:35
Works for me just fine on Windows, I imagine it would work in iOS/Unix.
– Zac Faragher
Oct 31 '17 at 22:49
add a comment |
I've just had to deal with this myself, I didn't find the manual to be perfectly clear on how to use Method Parameters.
Encryption Type is a Method Parameter and needs to be passed as part of an -m switch, e.g.: -mem=AES256.
Similarly, if you want to do Copy Only (no compression), you need to use -mx=0.
7za a ~/Desktop/tmp.7z my-big-file -mem=AES256 -mx=0 -pMyPass
answered Oct 31 '17 at 22:26
Zac FaragherZac Faragher
1114
I've just had to deal with this myself, I didn't find the manual to be perfectly clear on how to use Method Parameters.
Encryption Type is a Method Parameter and needs to be passed as part of an -m switch, e.g.: -mem=AES256.
Similarly, if you want to do Copy Only (no compression), you need to use -mx=0.
7za a ~/Desktop/tmp.7z my-big-file -mem=AES256 -mx=0 -pMyPass
answered Oct 31 '17 at 22:26
Zac FaragherZac Faragher
1114
edited Oct 31 '17 at 22:51
answered Oct 31 '17 at 22:26
Zac FaragherZac Faragher
1114
answered Oct 31 '17 at 22:26
Zac FaragherZac Faragher
1114
answered Oct 31 '17 at 22:26
Zac FaragherZac Faragher
1114
1114
And does this command (with the options after the filenames) actually work?
– G-Man
Oct 31 '17 at 22:35
Works for me just fine on Windows, I imagine it would work in iOS/Unix.
– Zac Faragher
Oct 31 '17 at 22:49
add a comment |
And does this command (with the options after the filenames) actually work?
– G-Man
Oct 31 '17 at 22:35
Works for me just fine on Windows, I imagine it would work in iOS/Unix.
– Zac Faragher
Oct 31 '17 at 22:49
And does this command (with the options after the filenames) actually work?
– G-Man
Oct 31 '17 at 22:35
And does this command (with the options after the filenames) actually work?
– G-Man
Oct 31 '17 at 22:35
Works for me just fine on Windows, I imagine it would work in iOS/Unix.
– Zac Faragher
Oct 31 '17 at 22:49
Works for me just fine on Windows, I imagine it would work in iOS/Unix.
– Zac Faragher
Oct 31 '17 at 22:49
add a comment |
I used 7z a -t7z -m0=Copy -mhe=on -pPassword archive.7z foldername to get around the E_INVALIDARG error.
answered Feb 25 at 10:07
user3248784user3248784
213
add a comment |
I used 7z a -t7z -m0=Copy -mhe=on -pPassword archive.7z foldername to get around the E_INVALIDARG error.
answered Feb 25 at 10:07
user3248784user3248784
213
add a comment |
I used 7z a -t7z -m0=Copy -mhe=on -pPassword archive.7z foldername to get around the E_INVALIDARG error.
answered Feb 25 at 10:07
user3248784user3248784
213
I used 7z a -t7z -m0=Copy -mhe=on -pPassword archive.7z foldername to get around the E_INVALIDARG error.
answered Feb 25 at 10:07
user3248784user3248784
213
answered Feb 25 at 10:07
user3248784user3248784
213
answered Feb 25 at 10:07
user3248784user3248784
213
answered Feb 25 at 10:07
user3248784user3248784
213
213
add a comment |
add a comment |
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In Ubuntu
man 7zashows the zip file name and the file list as coming after the options.– AFH
Mar 15 '17 at 15:42
1
Just FYI... here's an answer with a 7z and 7za general comparison.: superuser.com/questions/1105516/comparing-7z-exe-and-7za-exe/…. Try it as....
7za a -mhe=on -pMyPass ~/Desktop/tmp.7z my-big-fileand then check to confirm it's 256 bit AES encrypted: linux.die.net/man/1/7za– Pimp Juice IT
Mar 15 '17 at 16:16
What did you determine with this @JackWade?
– Pimp Juice IT
Apr 28 '17 at 1:10