Contents
What is signing vs encryption?
Encryption uses a key to ensure the ciphertext cannot be deciphered by anyone but the authorized recipient. Signing of data works to authenticate the sender of the data and tends to implement a form of encryption in its process.
Should signature be encrypted?
Assuming you are asking about public-key signatures + public-key encryption: Short answer: I recommend sign-then-encrypt, but prepend the recipient’s name to the message first. Long answer: When Alice wants to send an authenticated message to Bob, she should sign and encrypt the message.
How is plausible deniability achieved in TrueCrypt containers?
Plausible Deniability. When using system encryption, plausible deniability can be achieved by creating a hidden operating system (see the section Hidden Operating System ).Although file-hosted TrueCrypt volumes (containers) do not contain any kind of “signature” either (until decrypted, they appear to consist solely of random data),…
What is deniable encryption and what does it do?
This is known as deniable encryption, the focus of our article, but there is another related concept known as deniable authentication. This casts doubt over whether or not messages are authentic. Deniable encryption can be used to hide data within file-hosted containers, partitions, and hard drives.
Where does the concept of plausible deniability come from?
The concept of plausible deniability is rooted in politics and espionage, and involves a person having the ability to deny their involvement, responsibility or knowledge of certain events or information.
Can a strong encryption system keep someone out?
Strong encryption can keep your adversaries out, but only if they can’t obtain your password. If your threat model includes coercion, either by the threat of jail time from the government, or through torture, then you may give in and hand over the key to save yourself.