- https://www.openssl.org
- https://www.libressl.org
- https://boringssl.googlesource.com/boringssl
- https://www.gnutls.org
- https://www.bouncycastle.org
- https://www.wolfssl.com
- https://www.trustedfirmware.org/projects/mbed-tls
- https://bearssl.org
- https://www.ssllabs.com/ssltest
- https://github.com/rbsec/sslscan
- https://ssl-config.mozilla.org
- https://ciphersuite.info
- https://letsencrypt.org
- https://www.sslshopper.com/article-most-common-openssl-commands.html
- https://www.thesslstore.com/blog/openssl-commands-cheat-sheet
- https://www.freecodecamp.org/news/openssl-command-cheatsheet-b441be1e8c4a
- https://www.cs.utexas.edu/~shmat/shmat_ccs12.pdf
- https://eprint.iacr.org/2012/064.pdf
- https://openvpn.net/faq/why-ssl-vpn
- https://docs.microsoft.com/en-us/windows/win32/secauthn/secure-channel
- https://support.apple.com/en-us/HT210176
- https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS
- https://cheatsheetseries.owasp.org/cheatsheets/Transport_Layer_Protection_Cheat_Sheet.html
- https://stackoverflow.com/questions/26673141/is-it-possible-to-add-our-symmetric-algorithm-to-openssl
- https://stackoverflow.com/questions/31802194/how-can-add-my-own-hashdigest-algorithm-to-openssl
- https://stackoverflow.com/questions/12945099/how-can-i-use-different-encryption-algorithms-in-openssl-for-x-509-certificates
- https://wiki.openssl.org/index.php/How_to_Integrate_a_Symmetric_Cipher
- http://home.agh.edu.pl/~jurkiew/publications/2016-01-01-implementation-of-a-new-cipher-in-openssl-environment-the-case-of-indect-block-cipher.pdf
- https://www.researchgate.net/publication/282350174_Implementation_of_a_New_Cipher_in_OpenSSL_Environment_the_Case_of_INDECT_Block_Cipher
- https://topic.alibabacloud.com/a/complete-steps-for-adding-a-new-algorithm-to-font-colorredopensslfont-by-using-the-source-code-method-example-font-colorreddigestfont-algorithm-sm3-non-engine-method_8_8_31653365.html
- https://github.com/LuaDist/openssl/blob/master/engines/ccgost/README.gost
- https://svn.python.org/projects/external/openssl-1.0.2g/engines/ccgost/README.gost
- openssl/openssl#10070
- https://www.wolfssl.com/forums/topic1285-customizing-signature-algorithms-in-client-hello-python.html
- https://www.openssl.org/docs/OpenSSL300Design.html
- https://wiki.openssl.org/index.php/Compilation_and_Installation