Suite B Profile for Datagram Transport Layer Security / Secure Real-time Transport Protocol (DTLS-SRTP)

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Last updated 2014-06-29 (latest revision 2013-12-26)
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The United States government has published guidelines for "NSA Suite B Cryptography", which defines cryptographic algorithm policy for national security applications. This document describes the use of Suite B cryptography with the Datagram Transport Layer Security (DTLS) protocol, the Secure Real-Time Transport Protocol (SRTP), and the Secure Real-Time Transport Control Protocol (SRTCP) to provide a robust architecture for securing real-time data.


Michael Peck (
Kevin Igoe (

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