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The Boneh-Franklin IBE. Simplified Boneh-Franklin IBE 2.

Published byPaul Barton Modified over 9 years ago

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Presentation on theme: "The Boneh-Franklin IBE. Simplified Boneh-Franklin IBE 2."— Presentation transcript:

1 The Boneh-Franklin IBE

2 Simplified Boneh-Franklin IBE 2

3 Boneh-Franklin IBE - correctness 3

4 Boneh-Franklin IBE 4

5 Boneh-Franklin IBE - correctness 5

6 Admissible bilinear maps 6

7 Bilinear Diffie-Hellman - BDH 7

8 BDH generator 8

9 BDH assumption 9

10 Boneh-Franklin - BasicIdent 10

11 Random oracle model (ROM)

12 Random oracel model idealization of  one-way functions  random functions  collision-resistant hash functions.

13 BasicIdent - Security 13

14 BasicPub – a public-key variant 14

15 Proof structure 15

16 BasicPub and BasicIdent 16

17 The CPA game 17

18 BasicPub and BasicIdent 18

19 BasicPub and BasicIdent 19

20 Computing H 1 20

21 Answering KeyGen queries 21

22 Computing challenge c’ 22

23 Putting things together 23

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