We developed an AES based file encryption tool. By encrypting a file with a strong password, nobody can access the original file without knowing the password.
In Windows operating system, download aes_ofb.zip and double click build.bat to build executable aes_ofb.exe.
To encrypt a file with a password:
aes_ofb.exe file password
The newly created file with .aes extension is the encrypted file. Original file is not modified.
To encrypt all files in a directory with a password:
aes_ofb.exe path password
To decrypt an encrypted file, process it with aes_ofb.exe and same password.
Though 128-bit AES is considered unbreakable, a weak password is still vulnerable.
Please encrypt each file with different password before you understand stream cipher attacks.
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