![]() ![]() But if "easy" is actually breaking the password, it will depend entirely on the password. If "easy" is just downloading a program and running it, yes, it's that easy. Secondly, are password-protected PDFs also this easy to break into? So send the file by email, and the password by SMS, Signal message, fax, or any other media. Sending a AES-CBC encrypted file with 120-byte password is useless if the password is the body of the email. And while you are generating the password, create a 64-byte password and you don't need to worry for a couple thousand millennia.īut the password must be sent by another media. So generate a password, don't choose one. Yes, if your password is trivial, or if someone ever used it somewhere. But sometimes the Universe itself won't exist long enough for that.Īre these password crackers effective at circumventing this security measure? Given enough time, every password can be broken. TL DR: You are fine, generate a long password (60+ chars), send the file by mail and the password by SMS, fax, snail-mail or phone call.ĭoes this mean that 7ZIP encryption is basically useless?Ī password cracker just tries passwords over and over again, either by trying all words on a dictionary (a very large file filled with words), or by trying all possible combinations. "John The Ripper can crack these AES-256 encrypted archives."ĭoes this mean that 7ZIP encryption is basically useless? Are these password crackers effective at circumventing this security measure? Secondly, are password-protected PDFs also this easy to break into? I also found this answer in this forum that talks about John The Ripper: "7z Cracker is an opensource cracking tool which can extract any password protected 7zip file". ![]() I figured a good alternative was, instead of password-protecting each PDF, I could encrypt the containing folder with 7ZIP, which I got from You can see the encryption box at the bottom-right:Īt first I was optimistic about this option, but a quick Google search led me to articles such as this one where apparently there are easy to find tools, such as 7z Cracker: I don't want to send unsecured PDFs via e-mail because e-mail is inherently insecure. ![]() A client says they can't accept password-protected PDFs to put in their payroll system, so I have to send them without security. ![]()
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