Latest tls versions1/1/2024 ![]() ![]() ![]() The major version of the OpenSSL libraries available for the operating system (OS) version. The versions of TLS that are available for an InterSystems IRIS instance depend on several factors: ![]() Which TLS Versions Does My Instance of InterSystems IRIS Support? In all cases, InterSystems IRIS uses what is called a TLS configuration, which specifies the various characteristics of an InterSystems IRIS instance as part of an TLS connection. For information on using TLS with ECP, see Securing Application Server Connections to a Data Server with TLS.Īs a server, InterSystems IRIS accepts connections and establishes the use of TLS as a client, InterSystems IRIS is able to connect to servers that require the use of TLS. With the Enterprise Cache Protocol (ECP). InterSystems IRIS supports TLS to secure several types of connections:įrom various client applications that interact with the InterSystems IRIS superserver (including ODBC, JDBC, and Studio).įrom Telnet clients that interact with the Telnet server.įor use with TCP connections where an InterSystems IRIS instance is the client or server (or an InterSystems IRIS instance is at each end). For example, a browser uses TLS to establish a secure connection with a specified web site by requiring that the site (the server, in this case) authenticate itself to the browser (which occurs unbeknownst to the browser’s user) and the lock icon that appears in the browser is designed to indicate that TLS is protecting the connection. While InterSystems IRIS and applications require various interactions with TLS, the end-user typically has no such direct interactions. If successful, the handshake creates session keys that are used to protect subsequent communications. For InterSystems IRIS, a TLS configuration (described in About Configurations) specifies a named set of TLS-related values, including a certificate file, a private key file, and an optional set of cipher suites. The private key is a sensitive secret value and the public key is a widely published value typically, the public key is encapsulated in a certificate, which also contains identifying information about the holder, such as a name, organization, location, issuer validity, and so on. With public-key cryptography, each peer (either the client or the server) has a public key and a private key. To perform the handshake, TLS typically uses public-key cryptography (though it can use other means, such as the Diffie-Hellman protocol). (If there are no common ciphers between the client and server, the handshake fails.) The client proposes a set of possible ciphers for use from among those proposed, the server selects one. Specifically, a peer’s cipher suites specify what features and algorithms it supports. The cipher suites of the client and server specify how these activities occur as part of the handshake or are supported for a protected connection. The integrity of subsequent communication can be verified. Subsequent communication can be encrypted. ( Session keys are the keys for use with a symmetric-key algorithm that allow the entities to protect data during subsequent communications.) The client and server have agreed upon session keys. (If the client and the server have both authenticated each other, this is known as mutual authentication.) If the server requires client authentication, this has happened. When two entities complete the handshake, this means that: In InterSystems documentation, the terms SSL/TLS and SSL are equivalent to TLS.Ī TLS connection uses a client/server model two entities establish a TLS connection through a TLS handshake. ![]()
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