Questions tagged [security-definition]
Questions about formal definitions of "security" for various cryptographic schemes (e.g. perfect secrecy, semantic security, ciphertext indistinguishability, etc.)
3 questions from the last 30 days
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Do KEMs protect against malicious public (encapsulating) keys?
It is widely known that elliptic curve Diffie-Hellman is vulnerable to maliciously crafted public keys, where a honestly generated private key combined with a malicious public key may result in ...
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Understanding CPA security game
if I understand correctly, there is a pre-challenge phase in the CPA security game in which the attacker sends messages to the encryption oracle and receives ciphertexts. Then there is a challenge ...
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Simultaneous access to both encryption and decryption oracles for a symmetric encryption algorithm [duplicate]
I am investigating the security implications when an attacker has simultaneous access to both encryption and decryption oracles for a symmetric encryption algorithm.
Specifically, by "...
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