hi, i had reported this to zoiper team and they said they have talked to FS team about this and its related to crypto naming convention in the RFC standards and it should be fixed in FS so eagerly waiting for the patch Regards, Bipin ------------------------------------------------------------------------ -------- Original Message -------- Subject: Re: [Freeswitch-users] SRTP crypto selection From: Bipin Patel <bipin@xbipin.com> To: FreeSWITCH Users Help <freeswitch-users@lists.freeswitch.org> Date: 3/16/2018, 7:56:08 PM
HI,
it seems many other dialers also send the crypto in a similar way so all cant be wrong i guess, should i file a bug request in FS?
Regards, Bipin
------------------------------------------------------------------------ -------- Original Message -------- Subject: Re: [Freeswitch-users] SRTP crypto selection From: Bipin Patel <bipin@xbipin.com> To: FreeSWITCH Users Help <freeswitch-users@lists.freeswitch.org> Date: 3/16/2018, 12:22:37 AM
Hi,
Thanks for that link but the other thing is the below line where zoiper sends a crypto that looks alike but the placement of characters is different so doesn't match so is zoiper doing it wrongly or it's a total different crypto that FS doesn't support
switch_core_media.c:1479 looking for crypto suite [AES_CM_192_HMAC_SHA1_32] in [4 AES_192_CM_HMAC_SHA1_32
On March 15, 2018 4:15:59 PM Jurijs Ivolga <jurijs.ivolga@gmail.com> wrote:
Hi,
Have you checked this:
https://freeswitch.org/confluence/display/FREESWITCH/rtp_secure_media
With kind regards,
Jurijs
On Thu, Mar 15, 2018 at 2:03 PM, Bipin Patel <bipin@xbipin.com <mailto:bipin@xbipin.com>> wrote:
hi,
is it possible to force a selected crypto for SRTP as i cant seem to find a way to force a crypto to the user such that is phone uses that for media, secondly i see zoiper sends the below in SDP
a=crypto:5 AES_256_CM_HMAC_SHA1_80 inline:854nJNIKSyhr0sJs+Ol+Qv2eSqC2gnydK8iVHUAXb4Xx7oW8iMM2jVi7R9xV6A== a=crypto:6 AES_256_CM_HMAC_SHA1_32 inline:854nJNIKSyhr0sJs+Ol+Qv2eSqC2gnydK8iVHUAXb4Xx7oW8iMM2jVi7R9xV6A== a=crypto:3 AES_192_CM_HMAC_SHA1_80 inline:854nJNIKSyhr0sJs+Ol+Qv2eSqC2gnydK8iVHUAXb4Xx7oW8iMM= a=crypto:4 AES_192_CM_HMAC_SHA1_32 inline:854nJNIKSyhr0sJs+Ol+Qv2eSqC2gnydK8iVHUAXb4Xx7oW8iMM= a=crypto:1 AES_CM_128_HMAC_SHA1_80 inline:854nJNIKSyhr0sJs+Ol+Qv2eSqC2gnydK8iVHUAX a=crypto:2 AES_CM_128_HMAC_SHA1_32 inline:854nJNIKSyhr0sJs+Ol+Qv2eSqC2gnydK8iVHUAX
where as FS always uses the below only
switch_core_media.c:1484 Found suite AES_CM_128_HMAC_SHA1_80
and also i noticed FS and zoiper have some variations in crypto names such as
switch_core_media.c:1479 looking for crypto suite [AES_CM_192_HMAC_SHA1_32] in [4 AES_192_CM_HMAC_SHA1_32
and this never matches and never used at all (notice the placement of CM_192 in FS whereas zoiper has 192_CM)
-- Regards, Bipin
------------------------------------------------------------------------
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