encryption

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Encryption

The coding of sensitive information for transfer online or otherwise electronically. One may encrypt data to prevent anyone other than the intended recipient from accessing it. For example, if one buys a product online and enters credit card information into an electronic form, that information is usually encrypted so hackers and potential identity thieves cannot use it for illicit purposes.

encryption

The manipulation of data to prevent accurate interpretation by all but those for whom the data is intended. Financial institutions use encryption to increase the security of data transmitted via the Internet.
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Towards black-box accountable authority IBE with short ciphertexts and private keys.
New Techniques for Dual System Encryption and Fully Secure HIBE with Short Ciphertexts.
The user must completely trust PKG, whereas PKG could engage in malicious activities including indeed decrypt any ciphertext for any user and re-distribute user's private keys for any identity, which slows down the application of IBBE.
The proposed scheme can be divided into three phases: the authenticated ciphertext generation, the message recovery and signature verification, and the signature conversion phases.
The authenticated ciphertext generation phase: For signing the message M, the signer [U.
and then deliveries the authenticated ciphertext (s, r, t) to the designated recipient [U.
To encrypt data with the Prefix method, we first construct a table which stores a permutation over the full plaintext set, then simply look up the ciphertext value using the plaintext.
For example, a ciphertext of 7 would correspond to the plaintext of 0.
ANON-ID-CCA2: Informally, we say that an HIBE system is anonymous if an adversary cannot distinguish the public key ID under which a ciphertext was generated.
2005) Hierarchical Identity Based Encryption with Constant Size Ciphertext.