1.openssl / openssl
General purpose TLS and crypto library
- cryptography
- openssl
- encryption
- tls
- ssl
- decryption
+85 stars
from 31,098 · score 4.45
Trending repositories
Ranked by Attention Score: stars gained over the last 7 complete days
20 repositories by Attention Score · Oct 28, 2026 – Nov 3, 2026 (UTC)
2.Mbed-TLS / mbedtls
An open source, portable, easy to use, readable and flexible TLS library, and reference implementation of the PSA Cryptography API. Releases are on a varying cadence, typically around 3 - 6 months between releases.
+16 stars
from 7,034 · score 2.83
+14 stars
from 14,025 · score 2.71
4.BLAKE3-team / BLAKE3
the official Rust and C implementations of the BLAKE3 cryptographic hash function
+12 stars
from 6,495 · score 2.56
5.P-H-C / phc-winner-argon2
The password hash Argon2, winner of PHC
+7 stars
from 5,392 · score 2.08
6.RustCrypto / hashes
Collection of cryptographic hash functions written in pure Rust
- cryptographic-hash-functions
- blake2
- gost
- streebog
- groestl
- md2
- +13 more
+6 stars
from 2,282 · score 1.95
7.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.
- libtomcrypt
- cryptography
- c
- encryption
+6 stars
from 1,795 · score 1.95
8.Legrandin / pycryptodome
A self-contained cryptographic library for Python
- cryptography
- security
- python
+5 stars
from 3,281 · score 1.79
9.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.
- ssl
- tls
- cryptography
- security
- openssl
- tls13
- +14 more
+4 stars
from 2,980 · score 1.61
10.bitcoin-core / secp256k1
Optimized C library for EC operations on curve secp256k1
+4 stars
from 2,498 · score 1.61
11.B-Con / crypto-algorithms
Basic implementations of standard cryptography algorithms, like AES and SHA-1.
+4 stars
from 2,050 · score 1.61
12.pyca / cryptography
cryptography is a package designed to expose cryptographic primitives and recipes to Python developers.
- python
- cryptography
+3 stars
from 7,829 · score 1.39
13.digitalbazaar / forge
A native implementation of TLS in Javascript and tools to write crypto-based and network-heavy webapps
- crypto
- cryptography
- x509
- message-digest
- aes
- asn1
- +14 more
+3 stars
from 5,347 · score 1.39
+3 stars
from 5,019 · score 1.39
+3 stars
from 4,110 · score 1.39
16.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.
- cryptography-library
- cryptography
- security
- golang
- ios
- swift
- +14 more
+3 stars
from 1,980 · score 1.39
+2 stars
from 4,783 · score 1.10
18.lestrrat-go / jwx
Complete implementation of JWx (Javascript Object Signing and Encryption/JOSE) technologies for Go. #golang #jwt #jws #jwk #jwe
- jwt
- jwe
- jws
- jwk
- go
- golang
- +1 more
+2 stars
from 2,442 · score 1.10
19.brix / crypto-js
JavaScript library of crypto standards.
+1 stars
from 16,398 · score 0.69
20.google / highwayhashArchived
Fast strong hash functions: SipHash/HighwayHash
+1 stars
from 1,603 · score 0.69