Refolk

Top Cryptography repositories on GitHub

Crypto primitives, protocols, and zero-knowledge tooling.

Ranked by stars across 1,119 repositories tagged cryptography. Refreshed daily.

  1. 1
    bitcoin/bitcoin89,026 · ⑂ 38,950

    Bitcoin Core integration/staging tree

    • bitcoin
    • c-plus-plus
    • p2p
    • cryptocurrency
    • cryptography
  2. 2
    TheAlgorithms/JavaScript34,154 · ⑂ 5,856

    Algorithms and Data Structures implemented in JavaScript for beginners, following best practices.

    • algorithm
    • algorithm-challenges
    • data-structures
    • cryptography
    • cipher
    • search
  3. 3
    anoma/anoma33,890 · ⑂ 4,117

    Reference implementation of Anoma

    • cryptography
    • blockchain
    • protocol
    • consensus
    • distributed-systems
    • p2p
  4. 4
    openssl/openssl30,106 · ⑂ 11,246

    General purpose TLS and crypto library

    • cryptography
    • openssl
    • encryption
    • tls
    • ssl
    • decryption
  5. 5
    bee-san/Ciphey21,375 · ⑂ 1,437

    ⚡ Automatically decrypt encryptions without knowing the key or cipher, decode encodings, and crack hashes ⚡

    • decryption
    • natural-language-processing
    • cryptography
    • cipher
    • artificial-intelligence
    • ctf-tools
  6. 6
    amark/gun19,036 · ⑂ 1,238

    An open source cybersecurity protocol for syncing decentralized graph data.

    • machine-learning
    • artificial-intelligence
    • big-data
    • blockchain
    • p2p
    • decentralized
  7. 7

    A powerful obfuscator for JavaScript and Node.js

    • javascript-obfuscator
    • obfuscation
    • uglify
    • javascript
    • protection
    • obfuscate
  8. 8
    zama-ai/bounty-program15,372 · ⑂ 438

    Zama Bounty Program: Contribute to the FHE space and Zama's open source libraries and get rewarded 💰

    • bounty-program
    • cryptography
    • fully-homomorphic-encryption
    • zama
  9. 9
    cryptomator/cryptomator15,075 · ⑂ 1,291

    Cryptomator for Windows, macOS, and Linux: Secure client-side encryption for your cloud storage, ensuring privacy and control over your data.

    • cryptomator
    • java
    • cloud-storage
    • cryptography
    • crypto
    • security
  10. 10
    jedisct1/libsodium13,658 · ⑂ 1,867

    A modern, portable, easy to use crypto library.

    • crypto
    • cryptography
    • c
    • zig-package
  11. 11
    tink-crypto/tink13,540 · ⑂ 1,183

    Tink is a multi-language, cross-platform, open source library that provides cryptographic APIs that are secure, easy to use correctly, and hard(er) to misuse.

    • cryptography
    • java
    • cpp
    • go
    • objc
    • crypto
  12. 12
    krzyzanowskim/CryptoSwift10,547 · ⑂ 1,797

    CryptoSwift is a growing collection of standard and secure cryptographic algorithms implemented in Swift

    • swift
    • aes
    • cryptography
    • commoncrypto
    • cryptoswift
    • md5
  13. 13
    monero-project/monero10,519 · ⑂ 3,430

    Monero: the secure, private, untraceable cryptocurrency

    • c-plus-plus
    • monero
    • cryptocurrency
    • cmake
    • security
    • privacy
  14. 14
    OpenMined/PySyft9,884 · ⑂ 2,001

    Perform data science on data that remains in someone else's server

    • deep-learning
    • secure-computation
    • pytorch
    • privacy
    • cryptography
    • python
  15. 15
    PrivateBin/PrivateBin8,271 · ⑂ 983

    A minimalist, open source online pastebin where the server has zero knowledge of pasted data. Data is encrypted/decrypted in the browser using 256 bits AES.

    • self-hosted
    • self-hosting
    • pastebin
    • security
    • one-time
    • self-destroy
  16. 16
    lightningnetwork/lnd8,137 · ⑂ 2,262

    Lightning Network Daemon ⚡️

    • bitcoin
    • lightning-network
    • blockchain
    • micropayments
    • lightning
    • protocol
  17. 17
    kroma-network/tachyon7,687 · ⑂ 234

    Modular ZK(Zero Knowledge) backend accelerated by GPU

    • cpp17
    • cuda
    • zk
    • blockchain
    • c-plus-plus
    • cryptography
  18. 18
    pyca/cryptography7,585 · ⑂ 1,752

    cryptography is a package designed to expose cryptographic primitives and recipes to Python developers.

    • python
    • cryptography
  19. 19
    rustls/rustls7,384 · ⑂ 822

    A modern TLS library in Rust

    • tls
    • cryptography
    • rust
    • ssl
  20. 20
    RsaCtfTool/RsaCtfTool6,930 · ⑂ 998

    RSA attack tool (mainly for ctf) - retrieve private key from weak public key and/or uncipher data

    • rsa-attack
    • rsa
    • cryptography
  21. 21
    sobolevn/awesome-cryptography6,918 · ⑂ 750

    A curated list of cryptography resources and links.

    • crypto
    • cryptography
    • awesome-list
    • awesome
    • encryption
    • list
  22. 22
    upspin/upspin6,402 · ⑂ 315

    Upspin: A framework for naming everyone's everything.

    • storage
    • golang
    • cryptography
    • sharing
    • fuse
    • upspin
  23. 23
    tendermint/tendermint5,859 · ⑂ 2,097

    ⟁ Tendermint Core (BFT Consensus) in Go

    • bft
    • go
    • distributed-systems
    • consistency
    • db
    • consensus
  24. 24
    weidai11/cryptopp5,450 · ⑂ 1,674

    free C++ class library of cryptographic schemes

    • cryptography
    • crypto
    • c-plus-plus
  25. 25
    cjdelisle/cjdns5,387 · ⑂ 601

    An encrypted IPv6 network using public-key cryptography for address allocation and a distributed hash table for routing.

    • cjdns
    • mesh
    • mesh-networks
    • fcp
    • networking
    • routing

Find engineers shipping Cryptography

The list above ranks the most-starred public repositories tagged with the Cryptography topic, drawn from the public GitHub graph. Across 1,119 repositories tagged this way, the maintainers and top contributors are a tight cluster of the people actually building Cryptography.

Looking for engineers who’ve worked on Cryptography for real, not just listed it on LinkedIn? The fastest path is the contributor list of these repos. Their commits, issues, and READMEs are public proof of depth.

Refolk turns this list into a search. Ask for “maintainers of top Cryptography repos who are hiring”, Cryptography engineers in San Francisco”, or “founders shipping Cryptography” and Refolk returns a ranked shortlist with sources.

How this list is built

Refolk searched GitHub for public repositories tagged with the Cryptography topic, ranked them by stargazer count, and kept those with at least 50 stars. The list refreshes once a day.

Last refreshed: Thu, 07 May 2026 05:54:48 GMT

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