1 / 5

SDP Security Descriptions for Media Streams < draft-ietf-mmusic- sdescriptions-01.txt>

SDP Security Descriptions for Media Streams < draft-ietf-mmusic- sdescriptions-01.txt>. Flemming Andreasen Mark Baugher Dan Wing Cisco Systems. sdescriptions Overview. WG draft SRTP crypto-suites and keys over SDP SIP, SAP, Megaco, MGCP, etc. SDP must be protected

evers
Download Presentation

SDP Security Descriptions for Media Streams < draft-ietf-mmusic- sdescriptions-01.txt>

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. SDP Security Descriptions for Media Streams<draft-ietf-mmusic-sdescriptions-01.txt> Flemming Andreasen Mark Baugher Dan WingCisco Systems

  2. sdescriptions Overview • WG draft • SRTP crypto-suites and keys over SDP • SIP, SAP, Megaco, MGCP, etc. • SDP must be protected • By encapsulating protocol

  3. Changes from previous draft • New a=crypto syntax • Removed grouping • “use” attribute (encrypt, decrypt, both) [comments?] • SRC tuple for SSRC, SEQ, and ROC • Removed application=srtp|srtcp • O/A revised; still needs further detail • Interoperation with “use” attribute

  4. Example SDP Offer ...m=audio 49170 RTP/SAVP 0 a=crypto:AES_CM_128_HMAC_SHA1_80 inline:d/16/14/...key1.../2^20/ FEC_ORDER=FEC_SRTP SRC=17174//49126a=crypto:F8_128_HMAC_SHA1_80 inline:d/16/14/...key2.../2^20/ FEC_ORDER=FEC_SRTP SRC=17174//49126 ... ...m=audio 32640 RTP/SAVP 0a=crypto:AES_CM_128_HMAC_SHA1_80 inline:d/16/14/...key3.../2^20/ SRC=88131/721/13 ... Answer

  5. Next Steps • Finish Offer/Answer • Describe use without Offer/Answer • -02 will be posted by mid-August

More Related