implements a cryptography policy, generating a secret key via the circuit based on the plurality of individual attribute-based data corresponding to the cryptography policy, receiving a message, and generating a digital signature or decrypting a ciphertext based on the secret key and based on the ...
cryptography public key cryptography/ cloud service provider untrusted server ciphertext private key access policy flexible access control user attribute public-key-based one-to-many encryption verifiable outsourced decryption attribute-based encryption/ B6120D Cryptography C6130S Data security C6190J ...
Being an effective cryptographic system attribute-based encryption (ABE) became hot topic of research among the researchers. ABE is a kind of public key cryptography system. It uses ciphertext and private key of user for the encryption purpose. This scheme hooked up ciphertext with attributes (e...
Computer Science - Cryptography and Security94A6081T25We propose a large universe attribute-based encryption (ABE ) scheme from lattices. It is inspired by Brent Waters' scheme which is a large universe attribute-based encryption using bilinear map. It is a very practical scheme but this scheme...
ID-based cryptographywas introduced by Shmir in 1984. 基于身份的密码体制(ID-based cryptography)是SHAM IR在1984年提出的,使用该体制进行加密、签名和认证可以有效地减小系统中用户的存储代价和运算量。 2. By using bilinear pairing of elliptic curve andID-based cryptography, the proposed scheme overcomes ...
Finally, we present two solutions to improve the above issue and give a further discussion about the delegatibility property of ABS. Keywords: attribute-based cryptography; attribute-based signature; authentication; delegation; unforgeability MSC: 94A60; 94A62; 68P25; 68P27; 14G50...
store their medical records because it can be view by everyone, to assure the patients control over access to their own medical records; it is a promising method to encrypt the files before outsourcing and access control should be enforced though cryptography instead of role based access control....
Identification schemes are a common one-way authentication technique for a user to prove himself securely to a verifier. However, it is known that identification schemes based on the sigma-protocol are basically insecure against reset attacks. On the other-hand, attribute-based cryptography is a te...
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With the development of cryptography security, Attribute based encryption becomes new topic for researchers in recent years. ABE belongs to the public key encryption mechanism. In ABE, set of descriptive attribute is used as an identity to generate a secret key, as well as serving as the access...