Top Cryptography repositories on GitHub
Crypto primitives, protocols, and zero-knowledge tooling.
Ranked by stars across 1,119 repositories tagged cryptography. Refreshed daily.
- 1bitcoin/bitcoin★ 89,026 · ⑂ 38,950
Bitcoin Core integration/staging tree
- bitcoin
- c-plus-plus
- p2p
- cryptocurrency
- cryptography
- 2TheAlgorithms/JavaScript★ 34,154 · ⑂ 5,856
Algorithms and Data Structures implemented in JavaScript for beginners, following best practices.
- algorithm
- algorithm-challenges
- data-structures
- cryptography
- cipher
- search
- 3anoma/anoma★ 33,890 · ⑂ 4,117
Reference implementation of Anoma
- cryptography
- blockchain
- protocol
- consensus
- distributed-systems
- p2p
- 4openssl/openssl★ 30,106 · ⑂ 11,246
General purpose TLS and crypto library
- cryptography
- openssl
- encryption
- tls
- ssl
- decryption
- 5bee-san/Ciphey★ 21,375 · ⑂ 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
- 6amark/gun★ 19,036 · ⑂ 1,238
An open source cybersecurity protocol for syncing decentralized graph data.
- machine-learning
- artificial-intelligence
- big-data
- blockchain
- p2p
- decentralized
- 7javascript-obfuscator/javascript-obfuscator★ 16,015 · ⑂ 1,721
A powerful obfuscator for JavaScript and Node.js
- javascript-obfuscator
- obfuscation
- uglify
- javascript
- protection
- obfuscate
- 8zama-ai/bounty-program★ 15,372 · ⑂ 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
- 9cryptomator/cryptomator★ 15,075 · ⑂ 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
- 10jedisct1/libsodium★ 13,658 · ⑂ 1,867
A modern, portable, easy to use crypto library.
- crypto
- cryptography
- c
- zig-package
- 11tink-crypto/tink★ 13,540 · ⑂ 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
- 12krzyzanowskim/CryptoSwift★ 10,547 · ⑂ 1,797
CryptoSwift is a growing collection of standard and secure cryptographic algorithms implemented in Swift
- swift
- aes
- cryptography
- commoncrypto
- cryptoswift
- md5
- 13monero-project/monero★ 10,519 · ⑂ 3,430
Monero: the secure, private, untraceable cryptocurrency
- c-plus-plus
- monero
- cryptocurrency
- cmake
- security
- privacy
- 14OpenMined/PySyft★ 9,884 · ⑂ 2,001
Perform data science on data that remains in someone else's server
- deep-learning
- secure-computation
- pytorch
- privacy
- cryptography
- python
- 15PrivateBin/PrivateBin★ 8,271 · ⑂ 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
- 16lightningnetwork/lnd★ 8,137 · ⑂ 2,262
Lightning Network Daemon ⚡️
- bitcoin
- lightning-network
- blockchain
- micropayments
- lightning
- protocol
- 17kroma-network/tachyon★ 7,687 · ⑂ 234
Modular ZK(Zero Knowledge) backend accelerated by GPU
- cpp17
- cuda
- zk
- blockchain
- c-plus-plus
- cryptography
- 18pyca/cryptography★ 7,585 · ⑂ 1,752
cryptography is a package designed to expose cryptographic primitives and recipes to Python developers.
- python
- cryptography
- 19
- 20RsaCtfTool/RsaCtfTool★ 6,930 · ⑂ 998
RSA attack tool (mainly for ctf) - retrieve private key from weak public key and/or uncipher data
- rsa-attack
- rsa
- cryptography
- 21sobolevn/awesome-cryptography★ 6,918 · ⑂ 750
A curated list of cryptography resources and links.
- crypto
- cryptography
- awesome-list
- awesome
- encryption
- list
- 22upspin/upspin★ 6,402 · ⑂ 315
Upspin: A framework for naming everyone's everything.
- storage
- golang
- cryptography
- sharing
- fuse
- upspin
- 23tendermint/tendermint★ 5,859 · ⑂ 2,097
⟁ Tendermint Core (BFT Consensus) in Go
- bft
- go
- distributed-systems
- consistency
- db
- consensus
- 24weidai11/cryptopp★ 5,450 · ⑂ 1,674
free C++ class library of cryptographic schemes
- cryptography
- crypto
- c-plus-plus
- 25cjdelisle/cjdns★ 5,387 · ⑂ 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.
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Last refreshed: Thu, 07 May 2026 05:54:48 GMT
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