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dtls: Add support for ephemeral DTLS certificates.

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This mimics the behavior of Chrome and Firefox and creates an ephemeral
X.509 certificate for each DTLS session.

Currently, the only supported key type is ECDSA because of its faster
generation time, but other key types can be added in the future as
necessary.

ASTERISK-27395

Change-Id: I5122e5f4b83c6320cc17407a187fcf491daf30b4
This commit is contained in:
Sean Bright
2017-09-29 14:50:17 +00:00
committed by Joshua Colp
parent be5b7b2076
commit 04d3785a79
10 changed files with 409 additions and 81 deletions
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2
configs/samples/sip.conf.sample
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@@ -1340,6 +1340,7 @@ srvlookup=yes ; Enable DNS SRV lookups on outbound calls
; encryption
; description ; Used to provide a description of the peer in console output
; dtlsenable
; dtlsautogeneratecert
; dtlsverify
; dtlsrekey
; dtlscertfile
@@ -1369,6 +1370,7 @@ srvlookup=yes ; Enable DNS SRV lookups on outbound calls
; ; A value of 'certificate' will perform ONLY certficiate verification
; dtlsrekey = 60 ; Interval at which to renegotiate the TLS session and rekey the SRTP session
; ; If this is not set or the value provided is 0 rekeying will be disabled
; dtlsautogeneratecert = yes ; Enable ephemeral DTLS certificate generation. The default is 'no.'
; dtlscertfile = file ; Path to certificate file to present
; dtlsprivatekey = file ; Path to private key for certificate file
; dtlscipher = <SSL cipher string> ; Cipher to use for TLS negotiation