Is it safe to store files in a WinRar archive?

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Andrew2017-07-12 22:28:43

rar

Andrew, 2017-07-12 22:28:43

There are some files (about 3GB) that you don't want to allow anyone to access.
If I archive them with WinRar and set a password of 20+ characters, would it be possible to crack it in a reasonable amount of time? Password - random characters and numbers.

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5 answer(s)

X

x67, 2017-07-12
@racshaser

I'll do without demagogy. Winrar uses the AES encryption algorithm with a 128 or 256 bit key depending on the version. And it is today a very reliable algorithm that is used everywhere. If your 25 digit password can be cracked in a reasonable time, don't worry, the whole world will have more problems. Therefore, use Winrar version 5 (key 256 bits) and do not forget about the crypto soldering iron, the hacking speed of which never depended on the encryption algorithm)

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laxikodeje, 2017-07-12
@laxikodeje

What is "reasonable"? Who is your opponent?
If any serious office - that will open.
Either by a supercomputer or simply by persuasion, they will persuade you to give up the password.
Any such defense does not imply unconditionality,
but a very specific situation with the enemy.
For domestic purposes - more than redundant.
But it is not clear why WinRAR is not satisfied with specialized tools.

A

Aristarkh Deryapa, 2017-07-12
@isisTance

Yes. I saw somewhere the hacking of the archive in a few seconds, like a brute checker. But if you want, you can write a decoder that breaks the encoding. Or just password cracking...

S

senefu, 2017-07-13
@senefu

PGP
Winrar is owned by Russian Jews and those are the last people you want to trust :D

C

CityCat4, 2017-07-13
@CityCat4

If you take the latest version, then AES256 is the same as in encryption viruses :) A password of 20+ characters in the full set ([A-Za-z0-9] and special characters) will give sufficient strength. But here, as always - if this data is really needed, for example, by Mr. Zakon, then they will use thermorectal cryptanalysis, which reveals passwords of any
complexity -three levels of encryption, because such data will not become obsolete even after 50 years, but an extreme case is taken - that all these 50 years the password has been continuously selected ...