Crate discrete_gaussian

Discrete gaussian samples based on FACCT and DDLL13. Implemented with ~40 bits of accuracy (relative error <= 2^-40). Based on the analysis in WALT19 this implies an upper bound of 2^80 security in constructions.

Re-exports

• pub use ctime::sample;
• pub use vtime::sample_vartime;
• pub use vtime::sample_vartime_k;

Modules

• ctime
  Functions that are conjectured to be constant time.
• vtime
  Variable time discrete sampling over algebraic structures.

Constants

• THETA_0
  Approximation of sqrt(1/(2*ln(2))) as defined in FACCT page 6

Functions

• k_from_theta
  Approximate a k value for the requested theta.