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Cipher Suite error

VFB
Cirrus
Cirrus

A server team provided the following ciphers used, but for some reason, I am unable to either create a rule or group for them. Any help would be appreciated

 

TLS-CHACHA20-POLY1305-SHA256
TLS-AES-256-GCM-SHA384
TLS-AES-128-GCM-SHA256
TLS-ECDHE-ECDSA-WITH-CHACHA20-POLY1305-SHA256
TLS-ECDHE-ECDSA-WITH-AES-128-GCM-SHA256
TLS-ECDHE-ECDSA-WITH-AES-256-GCM-SHA384

2 REPLIES 2

Kevin_Stewart
F5 Employee
F5 Employee

It might be helpful to verify that the intention is to support TLS 1.2 and TLS 1.3 ciphers (or just TLS 1.3). The top three in your list are explicitly TLS 1.3. The following literal cipher string will produce exactly what's in your list:

 

tmm --clientciphers '!DTLSv1_2:TLS13-AES256-GCM-SHA384:TLS13-AES128-GCM-SHA256:TLS13-CHACHA20-POLY1305-SHA256:ECDHE-ECDSA-CHACHA20-POLY1305-SHA256:ECDHE-ECDSA-AES128-GCM-SHA256;ECDHE-ECDSA-AES256-GCM-SHA384'

SUITE                                  PROT
TLS13-AES256-GCM-SHA384                TLS1.3
TLS13-AES128-GCM-SHA256                TLS1.3
TLS13-CHACHA20-POLY1305-SHA256         TLS1.3
ECDHE-ECDSA-CHACHA20-POLY1305-SHA256   TLS1.2
ECDHE-ECDSA-AES128-GCM-SHA256          TLS1.2
ECDHE-ECDSA-AES256-GCM-SHA384          TLS1.2

 

 

If this answered your question @VFB, can you accept the solution so it will be more helpful to others who find this thread? Thank you!