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In information technology, the Datagram Transport Layer Security (DTLS) protocol provides communications privacy for datagram protocols. DTLS allows datagram-based applications to communicate in a way that is designed to prevent eavesdropping, tampering, or message forgery. The DTLS protocol is based on the stream-oriented TLS protocol and is intended to provide similar security guarantees. The datagram semantics of the underlying transport are preserved by the DTLS protocol — the application will not suffer from the delays associated with stream protocols, but will have to deal with packet reordering, loss of datagram and data larger than a datagram packet size.
DTLS is defined in RFC 4347 for use with UDP encapsulation and in RFC 5238 for use with DCCP encapsulation.
See also
- OpenSSL: a free and popular implementation of TLS added support for DTLS with version 0.9.8.
External links
- The IETF TLS Workgroup
- The Design and Implementation of Datagram TLS
- SSLBlackbox - components for Windows and .NET software development with support for DTLS
- AnyConnect - popular VPN Client that uses TLS and DTLS
- yaSSL.com - SSL/TLS implementation with support for DTLS in version 1.0.3
- libsystools - a TLS/DTLS open source library for Windows/Linux using OpenSSL.
This article was originally based on material from the Free On-line Dictionary of Computing, which is licensed under the GFDL.
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