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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Then the sender encrypts SK with receiver's ID to generate the ciphertext C, and the receiver decrypts C with the private key dID issued by the PKG.
In this paper, we build our solution based on a probabilistic public-key cryptosystem that supports rerandomization of a ciphertext, and the threshold decryption.
Identity-Based Broadcast Encryption with Constant Size Ciphertexts and Private Keys.
In this case, any possible encryption/decryption oracle is destroyed, and the best that an attacker can do, short of finding a way to recorrelate the data with plaintext by breaking into internal databases, is to examine the ciphertext.
We may reason that all the ciphertexts from A are different, since each of them includes a fresh challenge.
This takes two plaintext vectors and outputs two ciphertext vectors.
Thus, users' secret key components generated by CP-ABE scheme cannot be colluded to decrypt the ciphertexts which beyond the privileges of users.
achieves an efficient access control mechanism using Constant-size Ciphertext Policy Comparative Attribute-Based Encryption (CCP-CABE) with the support of negative attributes and wildcards.
An AE scheme allows the signer to produce an authenticated ciphertext such that only the designated recipient has the ability to recover the message and verify its signature.
We should note that unlike the one-time pad model [6], the receiver does not need to have any knowledge about the random backgrounds in order to decipher the ciphertexts.
8] in 2014, where ciphertexts must be accessed by a data owner's access control policy, and predicate encryption [9] was a generalized notion for public key encryption that enables one to encrypt attributes as well as a message.