ciphertext

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ciphertext

[′sī·fər‚tekst]
(communications)
A message which has been transformed by a cipher so that it can be read only by those privy to the secrets of the cipher.

ciphertext

(cryptography)
Text which has been encrypted by some encryption system.

Opposite: plaintext.

ciphertext

Data that has been encrypted for security purposes. See plaintext.
References in periodicals archive ?
ver], [epsilon]')-PPTM that breaks the proposed CAE scheme with the chosen ciphertext attack, where t' denotes the running time, [q.
Authenticated-ciphertext-oracle query: When A issues a authenticated ciphertext oracle query of a message M, B randomly chooses c[member of] [{0, 1}.
Finally, B returns the ciphertext (s, r, t) as the result of authenticated-ciphertext-oracle query for M.
Signature-verification-oracle query: When A submits an authenticated ciphertext [delta] = (s, r, t), B searches the hash oracle query table of (M, c, a, u)'s.
The challenger B flips a coin [lambda] [left arrow] {0, 1} and generates an authenticated ciphertext [delta]* = (s*, r*, t*) where t* = b (mod [N.
It is not allowed to make an authenticated ciphertext oracle query for the target challenge M*.
Response of forgery: A outputs a valid authenticated ciphertext (s, r, t) for M* with the probability [epsilon]'.
h] h-oracles A queried with the value b which will lead to the forged authenticated ciphertext (s, r, t) with s [equivalent to] [alpha] (mod [N.
To obtain fair comparison results, we assume that only one signer is involved and responsible for generating the authenticated ciphertext.
The proposed scheme allows the signer to produce an authenticated ciphertext and only the designated recipient can recover the message and verify the signature for ensuring the confidentiality.