C++ Cryptography

9.7

9.9

OpenSSL

9.3

8.9

libsodium

8.3

9.4

s2n

8.3

9.7

mbedTLS

7.8

9.6

Crypto++

7.6

4.9

Tiny AES128 in C

20 Cryptography libraries and projects

OpenSSL

9.7 9.9 L2 C

A robust, commercial-grade, full-featured, and Open Source cryptography library. [Apache] websire
libsodium

9.3 8.9 L3 C

P(ortable|ackageable) NaCl-based crypto library, opinionated and easy to use. [ISC]
s2n

8.3 9.4 L3 C

An implementation of the TLS/SSL protocols. [Apache]
mbedTLS

8.3 9.7 L2 C

Tiny crypto suite aimed at embedded development, previously known as PolarSSL. [Apache2]
Crypto++

7.8 9.6 L1 C++

A free C++ class library of cryptographic schemes. [Boost]
Tiny AES128 in C

7.6 4.9 L5 C

A small and portable implementation of the AES128 ECB encryption algorithm implemented in C. [PublicDomain]
Botan

7.0 9.7 L1 C++

A crypto library for C++. [BSD-2]
LibTomCrypt

6.5 8.3 L3 C

A fairly comprehensive, modular and portable cryptographic toolkit. [WTFPL]
LibreSSL

6.1 8.3 L4 C

A free version of the SSL/TLS protocol forked from OpenSSL in 2014. [?]
Themis

5.6 8.7 L3 C

Crypto library for storage and messaging
Bcrypt

5.0 4.9 L3 C

A cross platform file encryption utility. Encrypted files are portable across all supported operating systems and processors.
digestpp

2.4 1.9 C++

C++11 header-only message digest (hash) library. [PublicDomain]
retter

2.0 0.0 L3 C

A collection of hash functions, ciphers, tools, libraries, and materials related to cryptography.
libhydrogen

1.8 7.0 C

A lightweight, secure, easy-to-use crypto library for constrained environments. [ISC]
mbedcrypto

1.7 4.2 C++

a portable, small, easy to use and fast c++14 library for cryptography.
GnuTLS

1.2 0.0 L2 C

A secure communications library implementing the SSL, TLS and DTLS protocols. [LGPL2.1]
GnuPG

1.1 0.0 L1 C

A complete and free implementation of the OpenPGP standard. [GPL]
Nettle

- -

A low-level cryptographic library. [LGPL]
BeeCrypt

- -

A portable and fast cryptography library. [LGPLv2.1+]
Libgcrypt

- -

A general purpose cryptographic library originally based on code from GnuPG. [LGPLv2.1+]

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