Adaptable key-policy attribute-based encryption with time interval
نویسندگان
چکیده
منابع مشابه
Adaptable Ciphertext-Policy Attribute-Based Encryption
In this paper, we introduce a new cryptographic primitive, called adaptable ciphertext-policy attribute-based encryption (CP-ABE). Adaptable CP-ABE extends the traditional CP-ABE by allowing a semitrusted proxy to modify a ciphertext under one access policy into ciphertexts of the same plaintext under any other access policies; the proxy, however, learns nothing about the underlying plaintext. ...
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Attribute-based encryption (ABE), as introduced by Sahai and Waters, allows for fine-grained access control on encrypted data. In its key-policy flavor, the primitive enables senders to encrypt messages under a set of attributes and private keys are associated with access structures that specify which ciphertexts the key holder will be allowed to decrypt. In most ABE systems, the ciphertext siz...
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ژورنال
عنوان ژورنال: Soft Computing
سال: 2016
ISSN: 1432-7643,1433-7479
DOI: 10.1007/s00500-016-2177-z