Once you encrypt a file with 7-Zip, is there a password reset if you forget your password?
Also, is there any backdoor in 7-Zip?
Would a developer answer these questions. Thanks much.
> Once you encrypt a file with 7-Zip, is there a password reset if you forget your password?
> Also, is there any backdoor in 7-Zip?
> Would a developer answer these questions
NO (I'm not the developer of 7-ZIP)
Conclusion: don't use the encryption feature of 7-ZIP :-)
7-Zip supports 3 ways for encryption:
1) 7z encryption (AES-256)
2) zip encryption (AES-256)
2) old zip encryption (ZipCrypto).
ZipCrypto probably is not too safe.
7-Zip's AES-256 encryption is pretty safe, if password is long.
With my estimation, if you use 20 letters (random latin letters) password for AES-256, nobody will be able to read your data in nearest 50 years.
If password is short
Short passwords can be recovered.
Probably GPUs with fast SHA-256 calculation can help there.
For example, 8-letters password can be recovered in one year with $2000 hardware.
Thanks for the informative replies.
I'm going to use the encryption feature for some of my files protected with a strong password like you suggested.
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