Research on Attribute Based Encryption Schemes and Its Advanced Functions
نویسندگان
چکیده
منابع مشابه
Applied Attribute-based Encryption Schemes
The advent of new cryptographic methods in recent years also includes schemes related to functional encryption. Within these schemes Attribute-based Encryption (ABE) became the most popular, including ciphertext-policy and key-policy ABE. ABE and related schemes are widely discussed within the mathematical community. Unfortunately, there are only a few implementations circulating within the com...
متن کاملEfficient and Provable Secure Ciphertext-Policy Attribute-Based Encryption Schemes
In a ciphertext-policy attribute-based encryption (CP-ABE) scheme, the data is encrypted under an access policy defined by a user who encrypts the data and a user secret key is associated with a set of attributes which identify the user. A user can decrypt the ciphertext if and only if his attributes satisfy the access policy. In CP-ABE, since the user enforces the access policy at the encrypti...
متن کاملAttribute Based Encryption Schemes for Efficient Verifiable Data Sharing
Attribute-based encryption (ABE) with outsourced decryption not only enables finegrained sharing of encrypted data, but also overcomes the effective drawback of the standard ABE schemes. An Attribute based encryption scheme with outsourced decryption allows a third party (e.g., a cloud server) to renovate an ABE cipher text into a (short) El Gamal-type cipher text using a public transformation ...
متن کاملAttribute-based encryption implies identity-based encryption
In this short paper we formally prove that designing attribute-based encryption schemes cannot be easier than designing identity-based encryption schemes. In more detail, we show how an attribute-based encryption scheme which admits, at least, AND policies can be combined with a collision-resistant hash function to obtain an identity-based encryption scheme. Even if this result may seem natural...
متن کاملAttribute-Based Encryption from Identity-Based Encryption
Ciphertext-policy attribute-based encryption (CP-ABE) is an access control mechanism where a data provider encrypts a secret message and then sends the ciphertext to the receivers according to the access policy which she/he decides. If the attributes of the receivers match the access policy, then they can decrypt the ciphertext. This manuscript shows a relation between ABE and identity-based en...
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ژورنال
عنوان ژورنال: International Journal of Computer and Communication Engineering
سال: 2015
ISSN: 2010-3743
DOI: 10.17706/ijcce.2015.4.3.145-155