Questions tagged [hybrid-encryption]

Hybrid encryption combines secret-key and public-key cryptography into an encryption scheme.

Hybrid encryption keeps the distinctive advantage of public-key cryptography that the sender needs no prior shared secret with the recipient, only her/his public key. And performance is typically better than with pure public-key encryption, in term of speed and size overhead, especially for large messages.

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Securely "forwarding" a Large message in a hybrid encryption system without sending the actual message

Alice has symmetrically encrypted the large (100Mb) MessageA with a random key K1, and then asymmetrically encrypted K1 with Bobs public key. She then stores the encrypted large message in a central and public repository and sends Bob's key to…
BobbyTables
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what's the purpose of passphrase in hybrid cryptography?

What's the purpose of a passphrase in hybrid cryptography? can it actually be used for authentication or if i put in another signature algorithm will it be like, two authentications?
orange
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A paper question about the security of hybrid encryption scheme

Why the decryptor can still use K to access the data even when K is updated? QAQ
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In cryptography is there such as thing as disguising unencrypted text?

Just wondered: I currently have TrueCrypt on my system (I am aware that there are various doubts about its penetrability, and that it is no longer under development). TC "volumes" obviously consist of bytes. It seems to me that decryption must…