ABE for circuitsLWELattice-based cryptographyAttribute-based encryption (ABE) is a standard method for achieving access control using cryptography, and is related to many other powerful primitives such as funct
Garg, S., Gentry, C., Halevi, S., Sahai, A., Waters, B.: Attribute-based encryption for circuits from multilinear maps. In: Canetti, R., Garay, J.A. (eds.) CRYPTO 2013. LNCS, vol. 8043, pp. 479–499. Springer, Heidelberg (2013). https://doi.org/ 10.1007/978-3-642-40084...
input/output equivalent circuits • a (b+c) vs. ab + ac 7 Vision: IO as hub for cryptography Indistinguishabilty Obfuscation Standard Assumption (e.g. LWE) “Most” of cryptography This talk + OWFs How do we build public key encryption from ...
However, in the traditional PRE systems, the communication model is one-to-one (i.e., one delegator to one delegatee), which means that a message can be re-encrypted for only a single public key. This limits their utility in many applications, where the re-encryption may be used for ...
Hierarchical ABE also allows for proxy re-encryption, but it forces a fixed structure for the access policies, limiting the flexibility of the access control system. In [18], Sedaghat et al. presented a decryption outsourceable Ciphertext-Policy Attribute-Based Signcryption (CP-ABSC) construction...
Attribute-Based encryption for circuits from multilinear maps. In: Canetti R, Garay JA, eds. Advances in Cryptology CRYPTO 2013. LNCS 8043, Springer-Verlag, 2013. 479-499. [doi: 10.1007/978-3-642-40084- 1_27]Attribute-Based Encryption for Circuits from Multilinear Maps. B. Waters,A. ...
Wee. Attribute-based encryption for circuits. J. ACM, 62(6):45:1-45:33, 2015. Prelim. version in STOC 2013.S. Gorbunov, V. Vaikuntanathan, H. Wee. Attribute-Based Encryption for Circuits. J. ACM 62(6): 45:1-45:33 (2015)....
attribute-based encryption,lattice,learning with errors (LWE),circuitsIn the previous construction of attributed-based encryption for circuits on lattices,the secret key size was exponential to the number of AND gates of the circuit,therefore,it was suitable for the shallow circuits whose depth is ...
In this paper, we present the first ciphertext-policy attribute-based encryption (CP-ABE) scheme for polynomial-size general circuits based on bilinear maps which is more suitable for practical use and more efficient than multilinear maps. Our scheme uses a top-down secret sharing and FANOUT gat...
Garg, S., Gentry, C., Halevi, S., Sahai, A., Waters, B.: Attribute-based encryption for circuits from multilinear maps. In: Canetti, R., Garay, J.A. (eds.) CRYPTO 2013, Part II. LNCS, vol. 8043, pp. 479–499. Springer, Heidelberg (2013) 5. Herranz, J., Laguillaumie, ...