If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
OT How safe is a 7-zip passworded file?
Using the latest version 7z920. When you zip up some files and use the default AES-256 encryption with "encrypt file names" checked, it's safe right? Thanks. |
#2
|
|||
|
|||
OT How safe is a 7-zip passworded file?
On 1/5/2014 11:35 PM, John Doe wrote:
Using the latest version 7z920. When you zip up some files and use the default AES-256 encryption with "encrypt file names" checked, it's safe right? Thanks. AES256 is good. What isn't good, is if you use the same password for everything. That wouldn't be good. Neither would a dictionary word be a good choice for a password. There are no simple answers for passwords. Passwords suck. Simple enough to remember, the password will be easy to break. Hard enough to prevent breakage, impossible to remember. I keep a couple (infrequently used) passwords written on an envelope. They include punctuation. Which is supposed to help. The larger the "alphabet", the better. Long passwords are nice, except for instances where data entry forms for the password aren't wide enough. For online passwords, you should be using two-factor authentication. A number of the online services, have various forms of protection, to make it harder to change the password on an account. http://en.wikipedia.org/wiki/Multi-f...authentication Paul |
#3
|
|||
|
|||
OT How safe is a 7-zip passworded file?
Paul nospam needed.com wrote:
John Doe wrote: Using the latest version 7z920. When you zip up some files and use the default AES-256 encryption with "encrypt file names" checked, it's safe right? AES256 is good. What isn't good, is if you use the same password for everything. That wouldn't be good. Neither would a dictionary word be a good choice for a password. There are no simple answers for passwords. Passwords suck. Simple enough to remember, the password will be easy to break. Hard enough to prevent breakage, impossible to remember. I keep a couple (infrequently used) passwords written on an envelope. They include punctuation. Which is supposed to help. The larger the "alphabet", the better. Long passwords are nice, except for instances where data entry forms for the password aren't wide enough. I keep all ordinary passwords in a file, so they are long and random. I will start doing that for zip files too. |
#4
|
|||
|
|||
OT How safe is a 7-zip passworded file?
Paul wrote:
Simple enough to remember, the password will be easy to break. Hard enough to prevent breakage, impossible to remember. Not necessarily. See he http://xkcd.com/936/ I don't know if I agree with the numbers, but what do you think is harder for a computer to guess, "6hyrt%$U" or "Fudge Blank Monkey Stripe 3"? With an archive, there's no worry about hitting a limit that locks you out of the system, so given enough time and machines, either password *will* be found. -- My mind is occupied with thoughts of the future and I have no time for idle chatter. |
#5
|
|||
|
|||
OT How safe is a 7-zip passworded file?
On 6/01/2014 12:35 PM, John Doe wrote:
Using the latest version 7z920. When you zip up some files and use the default AES-256 encryption with "encrypt file names" checked, it's safe right? Really depend on the password, and all passwords are vulnerable to dictionary attack? -- @~@ Remain silent. Nothing from soldiers and magicians is real! / v \ Simplicity is Beauty! May the Force and farces be with you! /( _ )\ (Fedora 19 i686) Linux 3.12.6-200.fc19.i686 ^ ^ 18:18:01 up 9 min 0 users load average: 0.00 0.10 0.11 不借貸! 不詐騙! 不援交! 不打交! 不打劫! 不自殺! 請考慮綜援 (CSSA): http://www.swd.gov.hk/tc/index/site_...sub_addressesa |
#6
|
|||
|
|||
OT How safe is a 7-zip passworded file?
On Mon, 06 Jan 2014 00:18:02 -0500, Paul wrote:
On 1/5/2014 11:35 PM, John Doe wrote: Using the latest version 7z920. When you zip up some files and use the default AES-256 encryption with "encrypt file names" checked, it's safe right? Thanks. AES256 is good. What isn't good, is if you use the same password for everything. That wouldn't be good. Neither would a dictionary word be a good choice for a password. There are no simple answers for passwords. Passwords suck. Simple enough to remember, the password will be easy to break. Hard enough to prevent breakage, impossible to remember. The way I handle this is to use an old song book and pick the first letters of my favorite verse, the song number and page number to make up my passwords then I associate that song with the particular item the password is for. Gordon I keep a couple (infrequently used) passwords written on an envelope. They include punctuation. Which is supposed to help. The larger the "alphabet", the better. Long passwords are nice, except for instances where data entry forms for the password aren't wide enough. For online passwords, you should be using two-factor authentication. A number of the online services, have various forms of protection, to make it harder to change the password on an account. http://en.wikipedia.org/wiki/Multi-f...authentication Paul |
#7
|
|||
|
|||
OT How safe is a 7-zip passworded file?
On 6/01/2014 6:24 PM, Mr. Man-wai Chang wrote:
On 6/01/2014 12:35 PM, John Doe wrote: Using the latest version 7z920. When you zip up some files and use the default AES-256 encryption with "encrypt file names" checked, it's safe right? Really depend on the password, and all passwords are vulnerable to dictionary attack? And BTW, your government could always arrest your physical body in reality for questioning! -- @~@ Remain silent. Nothing from soldiers and magicians is real! / v \ Simplicity is Beauty! May the Force and farces be with you! /( _ )\ (Fedora 19 i686) Linux 3.12.6-200.fc19.i686 ^ ^ 23:03:02 up 4:54 0 users load average: 0.00 0.01 0.05 不借貸! 不詐騙! 不援交! 不打交! 不打劫! 不自殺! 請考慮綜援 (CSSA): http://www.swd.gov.hk/tc/index/site_...sub_addressesa |
#8
|
|||
|
|||
OT How safe is a 7-zip passworded file?
On 1/6/2014 10:11 AM, Mr. Man-wai Chang wrote:
On 6/01/2014 6:24 PM, Mr. Man-wai Chang wrote: On 6/01/2014 12:35 PM, John Doe wrote: Using the latest version 7z920. When you zip up some files and use the default AES-256 encryption with "encrypt file names" checked, it's safe right? Really depend on the password, and all passwords are vulnerable to dictionary attack? And BTW, your government could always arrest your physical body in reality for questioning! They can always use a keylogger. Paul |
#9
|
|||
|
|||
OT How safe is a 7-zip passworded file?
On 06/01/2014 16:11, Mr. Man-wai Chang wrote:
On 6/01/2014 6:24 PM, Mr. Man-wai Chang wrote: On 6/01/2014 12:35 PM, John Doe wrote: Using the latest version 7z920. When you zip up some files and use the default AES-256 encryption with "encrypt file names" checked, it's safe right? Really depend on the password, and all passwords are vulnerable to dictionary attack? And BTW, your government could always arrest your physical body in reality for questioning! No, Man-wai, YOUR government can do that. In the West, our government spies on us until we make a mistake. Then they make a move... |
#10
|
|||
|
|||
OT How safe is a 7-zip passworded file?
On 6/01/2014 11:38 PM, Paul wrote:
On 1/6/2014 10:11 AM, Mr. Man-wai Chang wrote: And BTW, your government could always arrest your physical body in reality for questioning! They can always use a keylogger. That is, install malwares into your PC when you were away from home? -- @~@ Remain silent. Nothing from soldiers and magicians is real! / v \ Simplicity is Beauty! May the Force and farces be with you! /( _ )\ (Fedora 19 i686) Linux 3.12.6-200.fc19.i686 ^ ^ 00:33:02 up 6:24 0 users load average: 0.16 0.05 0.06 不借貸! 不詐騙! 不援交! 不打交! 不打劫! 不自殺! 請考慮綜援 (CSSA): http://www.swd.gov.hk/tc/index/site_...sub_addressesa |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Whats the safe maximum for a Winzip file? | Ian R | Storage (alternative) | 7 | October 5th 05 07:03 PM |
information on amd64 3200+ file slow file deletion | JD | AMD x86-64 Processors | 10 | January 24th 05 09:42 PM |
Safe to store external HD in bank safe deposit box? | Danny Kewl | General | 5 | December 29th 04 09:27 PM |
Passworded Packard Bell Restore Files | Alan | Packard Bell Computers | 1 | July 10th 04 03:10 AM |
How do I fix a Service Controler Manager File Error (Category 7000) - file not found | M. B. | Storage (alternative) | 0 | February 6th 04 01:58 PM |