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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