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How does this software work?

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sunjen
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PostPosted: Fri Nov 06, 2009 9:08 pm    Post subject: How does this software work? Reply with quote

Hi, I use PowerArchiver to encrypt some of my files. I was wondering where does this and other software alike store the key to decrypt the file?

I'm new to this so tell me if I'm on the right track:

Encryption:
Random key + File => Apply Algorithm = Encrypted File

My Password + Random key => Apply Algorithm = Encrypted Key

My Password => Apply hash function = Hashed Password

Resulting File = Encrypted File + Encrypted Key + Hashed Password

Decryption:
Ask for password, compare to hash. If negative show message "Password wrong"

If positive use password to decrypt key, use key to decrypt file.

Is this correct?

Thanks!
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