A Traceable and Revocable Multiauthority Attribute-Based Encryption Scheme with Fast Access

Table 1

Features comparison with other related works.

				POG		R
[13]			✓	✓
[14]	✓	✓				✓
[15]	✓	✓	✓
[16]		✓	✓	✓
This paper	✓	✓	✓	✓	✓	✓

AS represents adaptively secure, MAS represents supporting any monotone access structures, ZST represents zero storage cost for tracing, POG represents constructed in prime order groups, FA represents constant pairing operations for data access, and R represents revocation. ²The scheme [13] achieves selectively secure and the scheme [16] only achieves statically secure. ³In [13], their scheme only supports “AND gates with wildcard.” ⁴In [14], the number of identity tables for tracing is equal to the number of central authorities in the scheme. ⁵In [13–16], the number of pairing operations for decryption grows linearly with the number of attributes used for decryption.