Constant-Time Character Encoding in PHP Projects

Constantine: modular, high-performance, zero-dependency cryptography stack for verifiable computation, proof systems and blockchain protocols.

Constant-complexity, deterministic, very fast memory allocator (heap) for hard real-time high-integrity embedded systems. Allocation takes ≈165 cycles on Cortex M4. There is little activity because the project is finished and does not require further changes.

Templated type-safe hashmap implementation in C using open addressing and linear probing for collision resolution.

Pure-Rust traits and utilities for constant-time cryptographic implementations.

Lightweight library of data structures implemented in C++11, designed for constant time insertion, erasure, lookup, and fastest possible iteration.

A set of cryptographic primitives for building a multi-hop Proxy Re-encryption scheme, known as Transform Encryption.

Fuzzer to automatically find side-channel (timing) vulnerabilities

TLSF: two-level segregated fit O(1) allocator

A simple value-sorted map type for Go that features constant-time reads and efficient iteration over records.

CRYPTOGAMS distribution repository

Constant-time JavaScript functions

Shang-Mi cipher library. Constant-time implementation of SM2 and SM4.

high performance AES implementations optimized for cortex-m microcontrollers

Binsec/Rel is an extension of Binsec that implements relational symbolic execution for constant-time verification and secret-erasure at binary-level.

Initialize / Fill C++ array fast - O(1) time with only 1 extra bit of memory.

A repository of tools for verifying constant-timeness

Safe Base64 encoding/decoding in pure JavaScript.

Rust finite field library with fixed size multi-word values

Constant-time hex and base64 codecs from libsodium reimplemented in Rust.