retter alternatives and similar libraries

Based on the "Cryptography" category.
Alternatively, view retter alternatives based on common mentions on social networks and blogs.

OpenSSL

9.8 9.9 L2 retter VS OpenSSL

TLS/SSL and crypto library
libsodium

9.3 6.9 L3 retter VS libsodium

A modern, portable, easy to use crypto library.

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mbedTLS

8.7 9.9 L2 retter VS mbedTLS

An open source, portable, easy to use, readable and flexible TLS library, and reference implementation of the PSA Cryptography API.
Crypto++

8.3 8.0 L1 retter VS Crypto++

free C++ class library of cryptographic schemes
Tiny AES128 in C

8.2 0.6 L5 retter VS Tiny AES128 in C

Small portable AES128/192/256 in C
s2n

8.2 9.3 L3 retter VS s2n

An implementation of the TLS/SSL protocols
Botan

7.2 9.7 L1 retter VS Botan

Cryptography Toolkit
LibTomCrypt

6.6 6.4 L3 retter VS 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.
Themis by Cossack Labs

6.2 6.4 L3 retter VS Themis by Cossack Labs

Easy to use cryptographic framework for data protection: secure messaging with forward secrecy and secure data storage. Has unified APIs across 14 platforms.
LibreSSL

6.1 7.1 L4 retter VS LibreSSL

LibreSSL Portable itself. This includes the build scaffold and compatibility layer that builds portable LibreSSL from the OpenBSD source code. Pull requests or patches sent to [email protected] are welcome.
Bcrypt

5.3 9.4 L3 retter VS Bcrypt

Modern(-ish) password hashing for your software and your servers
libhydrogen

4.0 4.0 retter VS libhydrogen

A lightweight, secure, easy-to-use crypto library suitable for constrained environments.
digestpp

3.0 4.4 retter VS digestpp

C++11 header-only message digest library
mbedcrypto

2.0 1.4 retter VS mbedcrypto

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

1.1 0.0 L2 retter VS GnuTLS

GnuTLS
GnuPG

1.0 0.0 L1 retter VS GnuPG

Mirror of git://git.gnupg.org/gnupg.git — master branch contains no changes from upstream.
Libgcrypt

- retter VS Libgcrypt

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

- retter VS BeeCrypt

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

- retter VS Nettle

A low-level cryptographic library. [LGPL]