Crate clock_bigint 

clock-bigint

Deterministic constant-time big integers for blockchain consensus engines.

This crate implements the ClockinChain Big Integer specifications:

• Representation Specification v1.0
• Arithmetic Algorithm Specification v1.0
• Montgomery & Modular Exponentiation Specification v1.0
• Gas Schedule Specification v1.0

Features

• Deterministic: Bit-for-bit identical results across all platforms
• Constant-time: All operations execute in constant time to prevent timing attacks
• Canonical encoding: Unique representation for each integer value
• Gas metering: Precomputable gas costs for VM execution
• Montgomery arithmetic: Full support for cryptographic operations

Example

use clock_bigint::U256;

let a = U256::from_u64(10);
let b = U256::from_u64(20);
// Operations will be implemented...

Re-exports

pub use error::BigIntError;

pub use error::Result;

pub use gas::G_BASE;

pub use gas::Gas;

pub use gas::MAX_LIMBS;

pub use limbs::Limb;

pub use limbs::WideLimb;

pub use types::BigInt;

pub use types::BigIntCore;

pub use types::BigIntFixed;

pub use types::U256;

pub use types::U512;

pub use types::U1024;

pub use types::U2048;

pub use add::add;

pub use add::add_assign;

pub use add::add_magnitude;

pub use div::div;

pub use div::div_assign;

pub use div::div_rem;

pub use div::rem;

pub use div::rem_assign;

pub use mul::mul;

pub use mul::mul_assign;

pub use mul::sqr;

pub use sub::sub;

pub use sub::sub_assign;

pub use sub::sub_magnitude;

pub use encode::decode;

pub use encode::encode;

pub use modexp::mod_pow;

pub use montgomery::MontgomeryContext;

pub use montgomery::from_mont;

pub use montgomery::mont_add;

pub use montgomery::mont_mul;

pub use montgomery::mont_reduce;

pub use montgomery::mont_sub;

pub use montgomery::to_mont;

pub use timeboxed::modexp_timeboxed;

pub use timeboxed::mul_timeboxed;

pub use timeboxed::resume;

pub use timeboxed::ContinuationState;

pub use timeboxed::OpType;

pub use timeboxed::PartialResult;

Modules

add

Addition operations for BigInt.

ct

Constant-time primitives for cryptographic operations.

div

Division and modulo operations for BigInt.

encode

Canonical encoding and decoding for BigInt.

error

Error types for clock-bigint operations.

gas

Gas metering for BigInt operations.

limbs

Limb manipulation utilities for BigInt operations.

modexp

Modular exponentiation using Montgomery ladder.

montgomery

Montgomery modular arithmetic.

mul

Multiplication operations for BigInt.

sub

Subtraction operations for BigInt.

timeboxed

Time-sliced (pausable) operations for long-running computations.

types

Core BigInt types and traits.