Does AWS Application Load Balancer Support TLS 1.3?

Question

I am Trying To Search On google but I can not finding any A.W.S documentation regarding TLS 1.3

Answer 1

TLS 1.3 support in the Network Load Balancer has just been announced, so I think it's reasonable to expect that the new TLS 1.3 policies, such as ELBSecurityPolicy-TLS13-1-2-2021-06, will also be available on Application Load Balancers in a few weeks.

Update 2023-03-23: turned out to be more than a few weeks, but it's been announced today. The available policies, e.g. ELBSecurityPolicy-TLS13-1-2-2021-06 are documented here.

Answer 2

Application Load Balancer now supports TLS 1.3 announced by AWS on Mar 22, 2023.

TLS 1.3 is available on ALBs in all commercial AWS Regions, AWS GovCloud (US) Regions and AWS Outposts

TLS 1.3 security policies of ALB could be found in the ALB Doc and the recommended policy is ELBSecurityPolicy-TLS13-1-2-2021-06

Answer 3

A few days ago, ALB started supporting TLS1.3! The documentation has not been updated, but you can use the security policy implemented in NLB, ELBSecurityPolicy-TLS13-1-2-2021-06!

ALB Security Policy

Answer 4

I submitted a feature request in AWS support center today. Excerpt from the response:

I have taken a look internally and can see that we have an existing feature request for ALB to support TLS 1.3, which is a very popular request among our customers. Unfortunately, as the development process is internal, i wouldn't be able to provide you with an ETA on when ALB support for TLS 1.3 will be implemented at this time. Please be assured, that I have added your voice to this feature request so that this case can be used as supporting evidence for this feature and so it can gain priority among the internal team responsible for development.

Answer 5

It does not support it. The supported versions are listed here.