DAVROS: Deterministic And Verifiable Randomness On Schnorr signatures

A cryptographic library for creating and verifing extensible Schnorr signatures using the Ristretto prime-order group.

SPOILER ALERT

Davros was thought to have died during the first year of the Time War, when his command ship "flew into the jaws of the Nightmare Child" at the Gates of Elysium despite the Doctor's failed efforts to save him. But Davros was pulled out of the time lock of the war by Dalek Caan, using his own flesh to create a "new empire" of Daleks who place him in the Vault as their prisoner to make use of his knowledge. Under Davros' guidance, the Daleks steal 27 planets, including Earth, and hide them in the Medusa Cascade, one second out of sync with the rest of the universe.

In the follow-up episode "Journey's End", it is revealed that the stolen planets are required as a power source for Davros' ideal final solution: the reality bomb, which produces a wavelength that would cancel out the electrical field binding atoms to reduce all life outside the Crucible into nothingness in both his universe and countless other realities. But Davros learns too late that Dalek Caan, who came to the realisation of his race's atrocities as a consequence of saving his creator, used his prophecies and influence to ensure the Daleks' destruction while manipulating events to bring the Tenth Doctor and Donna Noble together for the role the latter would play. Though the Doctor attempts to save him, having earlier taunted the Doctor for turning his companions into killers and being the cause of the deaths of countless people during his travels, Davros furiously refuses the Doctor's help and accuses him of being responsible for the destruction while screaming: "Never forget, Doctor, you did this! I name you forever: You are the Destroyer of Worlds!" Thus the Doctor is forced to leave Davros to his fate as the Crucible self-destructs.

Warnings

davros and our elliptic curve library (which this code uses) have received one formal cryptographic and security review. Neither have yet received what we would consider sufficient peer review by other qualified cryptographers to be considered in any way, shape, or form, safe.

USE AT YOUR OWN RISK.

Documentation

Extensive documentation is available here.

Installation

To install, add the following to the dependencies section of your project's Cargo.toml:

davros = "^0.13"

Then, in your library or executable source, add:

extern crate davros

On nightly Rust, using the nightly feature enables a radix-51 field arithmetic implementation using u128s, which is approximately twice as fast.

Contributing

Please see CONTRIBUTING.md.

Patches and pull requests should be make against the develop branch, not master.