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OpenSSL is a software library for applications that provide secure communications over computer networks against eavesdropping, and identify the party at the other end. It is widely used by Internet servers, including the majority of HTTPS websites. OpenSSL contains an open-source implementation of the SSL and TLS protocols.
The reqwest HTTP client library offers the option to use Rustls for TLS instead of the system's default TLS library (for example, on Windows the default is the Security Support Provider Interface). [ 33 ] [ 34 ] In 2020 an ISRG software engineer enabled using Rustls as a TLS backend for cURL .
GnuTLS (/ ˈ ɡ n uː ˌ t iː ˌ ɛ l ˈ ɛ s /, the GNU Transport Layer Security Library) is a free software implementation of the TLS, SSL and DTLS protocols. It offers an application programming interface (API) for applications to enable secure communication over the network transport layer, as well as interfaces to access X.509, PKCS #12, OpenPGP and other structures.
Several versions of the TLS protocol exist. SSL 2.0 is a deprecated [27] protocol version with significant weaknesses. SSL 3.0 (1996) and TLS 1.0 (1999) are successors with two weaknesses in CBC-padding that were explained in 2001 by Serge Vaudenay. [28]
The certificate transparency system consists of a system of append-only certificate logs. Logs are operated by many parties, including browser vendors and certificate authorities . [ 3 ] Certificates that support certificate transparency must include one or more signed certificate timestamps (SCTs), which is a promise from a log operator to ...
gnoMint is able to manage of a whole hierarchy of CAs, simultaneously, with their respectives certificates. Pre-existing Certification Authorities made by other applications, as OpenSSL or TinyCA, can be imported with all their data. It has a CLI intended for batch certificate creation, or integration with other utilities.
Stunnel relies on the OpenSSL library to implement the underlying TLS or SSL protocol. Stunnel uses public-key cryptography with X.509 digital certificates to secure the SSL connection, and clients can optionally be authenticated via a certificate. [6] If linked against libwrap, it can be configured to act as a proxy–firewall service as well.
SSLeay is an open-source SSL implementation. It was developed by Eric Andrew Young [1] and Tim J. Hudson as an SSL 3.0 implementation using RC2 and RC4 encryption. [2] The recommended pronunciation is to say each letter s-s-l-e-a-y and was first developed by Eric A. Young ("eay"). [3]