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    31 repositories

    • ranshaw

      Public
      Standalone, zero-dependency C++ elliptic curve library implementing the Ran/Shaw curve for FCMP++. Runtime-dispatched backends (portable, x64, AVX2, AVX-512 IFM…
      cryptographycmakesimd
      cryptographycmakesimdconstant-timecpp17avx2zero-dependencyelliptic-curvesavx512finite-field-arithmetic
      C++
      •
      BSD 3-Clause "New" or "Revised" License
      •0•2•0•0•Updated Jun 10, 2026Jun 10, 2026

    • socketpp

      Public
      Cross-platform async socket library for C++17 - TCP streams and UDP datagrams with native event backends (epoll, kqueue, IOCP), callback-driven API, and thread …
      networkingstreamtcp
      networkingstreamtcpcross-platformsocketsipv6asyncudpipv4callback
      C++
      •
      BSD 3-Clause "New" or "Revised" License
      •0•0•0•0•Updated Apr 12, 2026Apr 12, 2026

    • tinyaes

      Public
      A zero-dependency C++17 AES encryption library supporting AES-128, AES-192, and AES-256 in ECB, CBC, CTR, and GCM modes, with SIMD-accelerated backends and runt…
      cryptographyaesaead
      cryptographyaesaeadcross-platformsimdaes-256aes-128aes-192gcmconstant-time
      C++
      •
      BSD 3-Clause "New" or "Revised" License
      •0•1•0•0•Updated Apr 12, 2026Apr 12, 2026

    • ed25519

      Public
      High-performance Ed25519 elliptic curve library in C++ with runtime-dispatched AVX2/AVX-512 IFMA backends, ristretto255, and multi-scalar multiplication
      cryptographycppsimd
      cryptographycppsimdpublic-domained25519curve25519constant-timeavx2digital-signaturesavx-512
      C++
      •
      The Unlicense
      •0•0•0•0•Updated Apr 11, 2026Apr 11, 2026

    • crypto

      Public
      Standalone C++17 cryptographic primitive library: Ed25519, ring signatures (CLSAG/Triptych), Bulletproofs/BP+/BP++, BIP-39/SLIP-10/SLIP-39 key derivation, with …
      cryptographysimded25519
      cryptographysimded25519cpp17avx2ring-signaturesbip39triptychbulletproofszero-knowledge-proofs
      C++
      •
      BSD 3-Clause "New" or "Revised" License
      •0•4•0•0•Updated Apr 11, 2026Apr 11, 2026

    • tinyblake

      Public
      Tiny, zero-dependency BLAKE2b library in C/C++17 with SIMD acceleration (SSE2, AVX2, AVX-512, NEON). Includes HMAC-BLAKE2b and PBKDF2-BLAKE2b. Header-only frien…
      hashingcryptographyneon
      hashingcryptographyneonpbkdf2simdheader-onlyhmacblake2bcpp17avx2
      C++
      •
      BSD 3-Clause "New" or "Revised" License
      •0•0•0•0•Updated Apr 11, 2026Apr 11, 2026

    • serialization-cpp

      Public
      C++ static library for binary serialization and JSON support - writer/reader pair for typed byte vectors, abstract Serializable interface, RapidJSON helpers, 12…
      serializationjsoncmake
      serializationjsoncmakecross-platformcppdeserializationcpp17rapidjsonstatic-librarybinary-serialization
      C++
      •
      BSD 3-Clause "New" or "Revised" License
      •0•0•0•0•Updated Apr 11, 2026Apr 11, 2026

    • tinysha

      Public
      Zero-dependency C++ cryptographic hash library (SHA-2, SHA-3, HMAC, PBKDF2) with SIMD backends and runtime CPU dispatch
      hashingcryptographycross-platform
      hashingcryptographycross-platformpbkdf2simdhmackeccaksha256cpp17avx2
      C++
      •
      BSD 3-Clause "New" or "Revised" License
      •0•0•0•0•Updated Apr 11, 2026Apr 11, 2026

    • randompp

      Public
      Minimal, cross-platform C++ library for cryptographically secure random byte generation and secure memory erasure using OS-native entropy sources
      cryptographycmakeentropy
      cryptographycmakeentropycross-platformcpprandomwebassemblyrandom-bytescsprngcpp17
      C++
      •
      BSD 3-Clause "New" or "Revised" License
      •0•0•0•0•Updated Apr 11, 2026Apr 11, 2026

    • uint256_t

      Public
      C++ unsigned 256 bit integer type
      C++
      •
      MIT License
      •45•0•0•0•Updated Apr 11, 2026Apr 11, 2026

    • tinychacha

      Public
      Zero-dependency C++17 ChaCha20-Poly1305 AEAD library with AVX2, AVX-512, and NEO backends - runtime CPU dispatch, dual C/C++ API
      cryptographycmakeaead
      cryptographycmakeaeadcross-platformneonsimdconstant-timepoly1305cpp17avx2
      C++
      •
      BSD 3-Clause "New" or "Revised" License
      •0•0•0•0•Updated Apr 11, 2026Apr 11, 2026

    • sneakerpp

      Public
      Encrypted peer-to-peer mesh networking library for C++17 - Noise XX authenticated channels over UDP with BBR congestion control, QUIC-inspired reliable streams,…
      encryptioncross-platformudp
      encryptioncross-platformudpnat-traversalpeer-to-peerx25519chacha20-poly1305blake2bcpp17low-latency
      C++
      •
      BSD 3-Clause "New" or "Revised" License
      •0•1•0•0•Updated Mar 15, 2026Mar 15, 2026

    • miniupnp

      Public
      UPnP IGD implementation
      C
      •
      BSD 3-Clause "New" or "Revised" License
      •479•0•0•0•Updated Mar 2, 2026Mar 2, 2026

    • cxxopts

      Public
      Lightweight C++ command line option parser
      C++
      •
      MIT License
      •647•0•0•0•Updated Mar 1, 2026Mar 1, 2026

    • cpp-linenoise

      Public
      A single file multi-platform (Unix, Windows) C++ header-only linenoise-based readline library.
      C++
      •
      BSD 2-Clause "Simplified" License
      •61•0•0•0•Updated Mar 1, 2026Mar 1, 2026

    • cpp-httplib

      Public
      A C++ header-only HTTP/HTTPS server and client library
      C++
      •
      MIT License
      •2.7k•0•0•0•Updated Mar 1, 2026Mar 1, 2026

    • argon2

      Public
      https://www.password-hashing.net/
      C
      •
      MIT License
      •0•0•0•0•Updated Feb 27, 2026Feb 27, 2026

    • cryptopp

      Public
      free C++ class library of cryptographic schemes
      C++
      •
      Other
      •1.7k•0•0•0•Updated Feb 14, 2026Feb 14, 2026

    • lmdb-cpp

      Public
      Wraps the LMDB C API into an OOP model that allows for opening and using multiple environments and databases at once
      C++
      •
      BSD 3-Clause "New" or "Revised" License
      •0•1•0•0•Updated Feb 14, 2026Feb 14, 2026

    • snappy

      Public
      A fast compressor/decompressor
      C++
      •
      Other
      •1k•0•0•0•Updated Feb 14, 2026Feb 14, 2026

    • cppfs

      Public
      Cross-platform C++ file system library supporting multiple backends
      C++
      •
      MIT License
      •73•0•0•0•Updated Feb 14, 2026Feb 14, 2026

    • lmdb

      Public
      Read-only mirror of official repo on openldap.org. Issues and pull requests here are ignored. Use OpenLDAP ITS for issues.
      C
      •641•0•0•0•Updated Feb 14, 2026Feb 14, 2026

    • cxxfolders

      Public
      A C++ library to look for special directories like "My Documents" and "%APPDATA%" so that you do not need to write Linux, Windows or Mac OS X specific code
      C++
      •
      MIT License
      •36•0•0•0•Updated Nov 9, 2025Nov 9, 2025

    • libzmq

      Public
      ZeroMQ core engine in C++, implements ZMTP/3.1
      C++
      •
      GNU General Public License v3.0
      •2.5k•0•0•0•Updated Nov 9, 2025Nov 9, 2025

    • simdjson

      Public
      Parsing gigabytes of JSON per second : used by Facebook/Meta Velox, the Node.js runtime, ClickHouse, WatermelonDB, Apache Doris, Milvus, StarRocks
      C++
      •
      Apache License 2.0
      •1.3k•0•0•0•Updated Apr 23, 2025Apr 23, 2025

    • rapidjson

      Public
      A fast JSON parser/generator for C++ with both SAX/DOM style API
      C++
      •
      Other
      •3.6k•0•0•0•Updated Apr 8, 2025Apr 8, 2025

    • libsodium

      Public
      A modern, portable, easy to use crypto library.
      C
      •
      Other
      •1.9k•0•0•0•Updated Jan 4, 2025Jan 4, 2025

    • hidapi

      Public
      A Simple cross-platform library for communicating with HID devices
      C
      •
      Other
      •469•0•0•0•Updated Jan 3, 2025Jan 3, 2025

    • spdlog

      Public
      Fast C++ logging library.
      C++
      •
      Other
      •5.2k•0•0•0•Updated Jan 3, 2025Jan 3, 2025

    • ipv6-parse

      Public
      A free IPv6 address string conversion library that supports the full spec and diagnostic output
      C
      •
      MIT License
      •6•0•0•0•Updated Jan 3, 2025Jan 3, 2025
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