Rabe

rabe is a rust library implementing several Attribute Based Encryption (ABE) schemes using a modified version of the bn library of zcash (type-3 pairing / Baretto Naering curve). The modification of bn brings in serde instead of the deprecated rustc_serialize.

This is a rust crate and comes with C bindings. For integration in distributed applications head over to rabe-keyserver, which wraps rabe in a standalone REST API webserver.

Implemented Ciphertext Policy Schemes (CP-ABE)

BDABE CP-ABE

Georg Bramm, Mark Gall, Julian Schütte , "Blockchain based Distributed Attribute-based Encryption". In Proceedings of the 15th International Joint Conference on e-Business and Telecommunications (ICETE 2018) - Volume 2: SECRYPT, pages 99-110. Available from https://doi.org/10.5220/0006852602650276

AC17 CP-ABE

Shashank Agrawal, Melissa Chase, "FAME: Fast Attribute-based Message Encryption", (Section 3). In Proceedings of the 2017 ACM SIGSAC Conference on Computer and Communications Security 2017. Available from https://eprint.iacr.org/2017/807.pdf

AW11 CP-ABE

Lewko, Allison, and Brent Waters, "Decentralizing Attribute-Based Encryption.", (Appendix D). In Eurocrypt 2011. Available from http://eprint.iacr.org/2010/351.pdf

BSW CP-ABE

John Bethencourt, Amit Sahai, Brent Waters, "Ciphertext-Policy Attribute-Based Encryption" In IEEE Symposion on Security and Privacy, 2007. Available from https://doi.org/10.1109/SP.2007.11

MKE08 CP-ABE

S Müller, S Katzenbeisser, C Eckert , "Distributed Attribute-based Encryption". Published in International Conference on Information Security and Cryptology, Heidelberg, 2008. Available from http://www2.seceng.informatik.tu-darmstadt.de/assets/mueller/icisc08.pdf

Implemented Key Policy Schemes (KP-ABE)

AC17 KP-ABE

Shashank Agrawal, Melissa Chase, "FAME: Fast Attribute-based Message Encryption". In Proceedings of the 2017 ACM SIGSAC Conference on Computer and Communications Security 2017. Available from https://eprint.iacr.org/2017/807.pdf

LSW KP-ABE

Allison Lewko, Amit Sahai and Brent Waters, "Revocation Systems with Very Small Private Keys". In IEEE Symposium on Security and Privacy, 2010. SP'10. Available from http://eprint.iacr.org/2008/309.pdf

Building rabe

In order to compile and test:

• install rust nightly
• git clone library
• install build-essential
• and then run 'cargo build && RUST_BACKTRACE=1 cargo test -- --nocapture'

In order to run on the console use

• target/debug/rabe

For example, in order to create msk and pk of an AC17 KP-ABE scheme run:

$ ./target/debug/rabe --scheme AC17KP setup

To compile the C testfile:

gcc test.c -lrabe -L./target/debug -o test

To encrypt a testfile in debug:

cargo run -- --scheme BSW encrypt --file testfile.txt --policy "{ \"OR\": [ { \"ATT\": \"test1\"}, {\"ATT\": \"test2\"} ] }"

To decrypt a testfile in debug:

cargo run -- --scheme BSW decrypt --public\ key pk.rkey --file testfile.txt.rct --secret\ key sk.rkey