1.bitcoin / bitcoin
Bitcoin Core integration/staging tree
+2,212 stars
from 88,369 · score 7.70
Trending repositories
Ranked by Attention Score: stars gained over the last 180 complete days
84 repositories by Attention Score · May 7, 2026 – Nov 2, 2026 (UTC)
2.cryptomator / cryptomator
Cryptomator for Windows, macOS, and Linux: Secure client-side encryption for your cloud storage, ensuring privacy and control over your data.
+1,495 stars
from 14,918 · score 7.31
3.openssl / openssl
General purpose TLS and crypto library
+1,287 stars
from 29,871 · score 7.16
4.monero-project / monero
Monero: the secure, private, untraceable cryptocurrency
+551 stars
from 10,419 · score 6.31
5.PrivateBin / PrivateBin
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.
+529 stars
from 8,194 · score 6.27
6.bee-san / Ciphey
⚡ Automatically decrypt encryptions without knowing the key or cipher, decode encodings, and crack hashes ⚡
+499 stars
from 21,234 · score 6.21
7.jedisct1 / libsodium
A modern, portable, easy to use crypto library.
+459 stars
from 13,579 · score 6.13
8.javascript-obfuscator / javascript-obfuscator
A powerful obfuscator for JavaScript and Node.js
+418 stars
from 15,901 · score 6.04
9.rustls / rustls
A modern TLS library in Rust
+389 stars
from 7,338 · score 5.97
10.TheAlgorithms / JavaScript
Algorithms and Data Structures implemented in JavaScript for beginners, following best practices.
+355 stars
from 33,926 · score 5.87
11.sobolevn / awesome-cryptography
A curated list of cryptography resources and links.
+325 stars
from 6,863 · score 5.79
12.RsaCtfTool / RsaCtfTool
RSA attack tool (mainly for ctf) - retrieve private key from weak public key and/or uncipher data
+322 stars
from 6,883 · score 5.78
13.pyca / cryptography
cryptography is a package designed to expose cryptographic primitives and recipes to Python developers.
+289 stars
from 7,543 · score 5.67
14.amark / gun
An open source cybersecurity protocol for syncing decentralized graph data.
+193 stars
from 18,966 · score 5.27
15.wolfSSL / wolfssl
The wolfSSL library is a small, fast, portable implementation of TLS/SSL for embedded devices to the cloud. wolfSSL supports up to TLS 1.3 and DTLS 1.3! Update to wolfSSL 5.9.1 for the latest CVE fixes.
+190 stars
from 2,794 · score 5.25
16.KuroLabs / stegcloak
Hide secrets with invisible characters in plain text securely using passwords 🧙🏻♂️⭐
+158 stars
from 3,774 · score 5.07
17.Peergos / Peergos
A p2p, secure file storage, social network and application protocol
+157 stars
from 2,389 · score 5.06
18.XRPLF / rippled
Decentralized cryptocurrency blockchain daemon implementing the XRP Ledger protocol in C++
+140 stars
from 5,101 · score 4.95
19.lightningnetwork / lnd
Lightning Network Daemon ⚡️
+110 stars
from 8,100 · score 4.71
20.weidai11 / cryptopp
free C++ class library of cryptographic schemes
+109 stars
from 5,416 · score 4.70
21.epsylon / ufonet
UFONet - Denial of Service Toolkit
+107 stars
from 2,441 · score 4.68
22.halfrost / Halfrost-Field
✍🏻 Source Code Deep Dives, System Design & Engineering Blogs | Halfrost-Field 冰霜之地：源码解析、系统设计与工程实践笔记
+106 stars
from 13,147 · score 4.67
23.TokTok / c-toxcore
The future of online communications.
+98 stars
from 2,598 · score 4.60
24.pFarb / awesome-crypto-papers
A curated list of cryptography papers, articles, tutorials and howtos.
+93 stars
from 2,014 · score 4.54
25.paulmillr / noble-hashes
Audited & minimal JS implementation of hash functions, MACs and KDFs.
+92 stars
from 849 · score 4.53
26.RustCrypto / hashes
Collection of cryptographic hash functions written in pure Rust
+90 stars
from 2,196 · score 4.51
27.aws / s2n-tls
An implementation of the TLS/SSL protocols
+79 stars
from 4,707 · score 4.38
28.digitalbazaar / forge
A native implementation of TLS in Javascript and tools to write crypto-based and network-heavy webapps
+75 stars
from 5,275 · score 4.33
29.paulmillr / noble-curves
Audited & minimal JS implementation of elliptic curve cryptography.
+73 stars
from 896 · score 4.30
30.Legrandin / pycryptodome
A self-contained cryptographic library for Python
+71 stars
from 3,213 · score 4.28
31.krzyzanowskim / CryptoSwift
CryptoSwift is a growing collection of standard and secure cryptographic algorithms implemented in Swift
+63 stars
from 10,514 · score 4.16
+56 stars
from 4,055 · score 4.04
33.mcginty / snow
A Rust implementation of the Noise Protocol Framework
+56 stars
from 1,057 · score 4.04
34.anoma / anoma
Reference implementation of Anoma
+55 stars
from 33,498 · score 4.03
35.paulmillr / noble-ciphers
Audited & minimal JS implementation of Salsa20, ChaCha and AES
+54 stars
from 378 · score 4.01
36.padloc / padloc
A modern, open source password manager for individuals and teams.
+53 stars
from 2,888 · score 3.99
37.boazeb / papervault
Paper vault for passwords and secrets
+53 stars
from 16 · score 3.99
38.libtom / libtomcrypt
LibTomCrypt is a fairly comprehensive, modular and portable cryptographic toolkit that provides developers with a vast array of well known published block ciphers, one-way hash functions, chaining modes, pseudo-random number generators, public key cryptography and a plethora of other routines.
+49 stars
from 1,750 · score 3.91
39.awnumar / memguard
Software sandbox for storage of sensitive information in memory.
+45 stars
from 2,720 · score 3.83
40.tink-crypto / tinkArchived
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.
+42 stars
from 13,496 · score 3.76
41.tendermint / tendermint
⟁ Tendermint Core (BFT Consensus) in Go
+42 stars
from 5,825 · score 3.76
42.zama-ai / bounty-programArchived
Zama Bounty Program: Contribute to the FHE space and Zama's open source libraries and get rewarded 💰
+41 stars
from 15,180 · score 3.74
43.tink-crypto / tink-java
Java implementation of Tink
+38 stars
from 273 · score 3.66
44.jedisct1 / libhydrogen
A lightweight, secure, easy-to-use crypto library suitable for constrained environments.
+37 stars
from 757 · score 3.64
45.jedisct1 / libsodium.js
libsodium compiled to Webassembly and pure JavaScript, with convenient wrappers.
+34 stars
from 1,129 · score 3.56
46.harrison314 / BouncyHsm
Bouncy Hsm is a software simulator of HSM and smartcard simulator with HTML UI, REST API and PKCS#11 interface.
+30 stars
from 175 · score 3.43
47.volodymyrprokopyuk / go-blockchain
A foundational and practical guide for effectively learning and progressively building a blockchain from scratch in Go with gRPC
+29 stars
from 527 · score 3.40
48.Xor-el / CryptoLib4Pascal
Crypto for Modern Object Pascal
+29 stars
from 237 · score 3.40
49.e-ago / bitcracker
BitCracker is the first open source password cracking tool for memory units encrypted with BitLocker
+27 stars
from 949 · score 3.33
50.cossacklabs / acra
Database security suite. Database proxy with field-level encryption, search through encrypted data, SQL injections prevention, intrusion detection, honeypots. Supports client-side and proxy-side ("transparent") encryption. SQL, NoSQL.
+26 stars
from 1,469 · score 3.30
51.cossacklabs / themis
Easy to use cryptographic framework for data protection: secure messaging with forward secrecy and secure data storage. Has unified APIs across 14 platforms.
+25 stars
from 1,957 · score 3.26
52.fwdai / rowel
🔑 Local-first Secrets Manager
+25 stars
from 935 · score 3.26
53.shrec / UltrafastSecp256k1
Ultra high-performance secp256k1 ECC engine | Python, Node.js, Rust, Go, C#, Swift, Java bindings | CUDA, Metal, OpenCL GPU | ECDSA, Schnorr, FROST, MuSig2, BIP-352 | 15+ platforms
+24 stars
from 36 · score 3.22
54.jonaschn / awesome-he
✨ Awesome - A curated list of amazing Homomorphic Encryption libraries, software and resources
+22 stars
from 1,241 · score 3.14
55.paulmillr / noble-secp256k1
Fastest 5KB JS implementation of secp256k1 signatures and ECDH
+22 stars
from 866 · score 3.14
56.pyca / pynacl
Python binding to the Networking and Cryptography (NaCl) library
+21 stars
from 1,188 · score 3.09
57.Password4j / password4j
Java cryptographic library that supports Argon2, bcrypt, scrypt and PBKDF2 aimed to protect passwords in databases. Easy to use by design, highly customizable, secure and portable. All the implementations follow the standards and have been reviewed to perform better in the JVM.
+20 stars
from 418 · score 3.04
58.hellman / xortool
A tool to analyze multi-byte xor cipher
+19 stars
from 1,472 · score 3.00
59.paulmillr / noble-ed25519
Fastest 5KB JS implementation of ed25519 signatures
+19 stars
from 504 · score 3.00
60.JHUISI / charm
Charm: A Framework for Rapidly Prototyping Cryptosystems
+17 stars
from 633 · score 2.89
61.nccgroup / featherduster
An automated, modular cryptanalysis tool; i.e., a Weapon of Math Destruction
+13 stars
from 1,128 · score 2.64
62.ektrah / nsec
A modern and easy-to-use cryptographic library for .NET based on libsodium
+13 stars
from 439 · score 2.64
63.brndnmtthws / dryoc
Don't Roll Your Own Crypto: fast, type-safe, pure-Rust cryptography with post-quantum support
+12 stars
from 333 · score 2.56
64.orion-rs / orion
Usable, easy and safe pure-Rust crypto
+11 stars
from 711 · score 2.48
65.jedisct1 / swift-sodium
Safe and easy to use crypto for iOS and macOS
+11 stars
from 545 · score 2.48
66.21-DOT-DEV / swift-secp256k1
Swift cryptography library for Bitcoin and Nostr. ECDSA, Schnorr, ECDH, and zero-knowledge proofs on secp256k1. Apple platforms and Linux.
+11 stars
from 150 · score 2.48
67.MHumm / DelphiEncryptionCompendium
Cryptographic library for Embarcadero Delphi and potentially for FPC as well
+10 stars
from 278 · score 2.40
68.number571 / go-peer
🔐 Library for developing secure, decentralized, anonymous and quantum-resistant networks in Go language
+9 stars
from 318 · score 2.30
69.SSProve / ssprove
A foundational framework for modular cryptographic proofs in Coq
+9 stars
from 82 · score 2.30
70.tlsfuzzer / python-ecdsa
pure-python ECDSA signature/verification and ECDH key agreement
+7 stars
from 967 · score 2.08
71.google / mundane
Mundane is a Rust cryptography library backed by BoringSSL that is difficult to misuse, ergonomic, and performant (in that order).
+6 stars
from 1,080 · score 1.95
72.pluto / ronkathon
Cryptography Educational Foundations
+6 stars
from 342 · score 1.95
73.KishanBagaria / padding-oracle-attacker
🔓 CLI tool and library to execute padding oracle attacks easily, with support for concurrent network requests and an elegant UI.
+5 stars
from 216 · score 1.79
74.awesome-algorand / awesome-algorand
⚡A curated list of awesome resources related to the Ⱥlgorand Blockchain ⛓
+5 stars
from 213 · score 1.79
75.Pkcs11Interop / Pkcs11Interop
Managed .NET wrapper for unmanaged PKCS#11 libraries
+4 stars
from 305 · score 1.61
+4 stars
from 44 · score 1.61
77.QuasarApp / Qt-SecretArchived
Simple encryption library supporting RSA and AES algorithms.
+3 stars
from 266 · score 1.39
78.abstractj / kaliumArchived
Java binding to the Networking and Cryptography (NaCl) library with the awesomeness of libsodium
+3 stars
from 217 · score 1.39
79.IronCoreLabs / recrypt-rs
A set of cryptographic primitives for building a multi-hop Proxy Re-encryption scheme, known as Transform Encryption.
+2 stars
from 166 · score 1.10
80.wavesplatform / Waves
⛓️ Reference Waves Blockchain Node (client) implementation on Scala
+1 stars
from 1,165 · score 0.69
81.RubyCrypto / rbnacl
Ruby FFI binding to the Networking and Cryptography (NaCl) library (a.k.a. libsodium)
+1 stars
from 984 · score 0.69
82.primihub / hehub
HEhub is a library for homomorphic encryption and its applications, and is part of the PrimiHub project.
+1 stars
from 111 · score 0.69
83.wavesplatform / WavesJ
Java library for interacting with the Waves blockchain.
+1 stars
from 48 · score 0.69
84.dmazzella / ucrypto
Micropython package for doing fast rsa and elliptic curve cryptography, specifically digital signatures
+1 stars
from 44 · score 0.69