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I recently disabled TLS older than 1.2 in my service. And the connection to storage account (classic) stopped working with error: "The client and server cannot communicate, because they do not possess a common algorithm".

I am trying to zero in into the cause. I think it's either Azure Storage classic not supporting TLS 1.2 or it could be that the client I am using is old. Any idea if it's the former?

I tried looking up the official docs, but it's hard to find any info on classic storage account.

PS: I know classic storage account is pretty old, but I am stuck with maintaining an older service (a classic cloud service which necessitates a classic storage account).

Screenshot of the overview tab of the storage account: enter image description here

Turbo
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1 Answers1

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Classic storage account supports TLS 1.2

enter image description here

Whenever there is an error like this thrown related to making a secure connection!

Enforce a minimum required version of Transport Layer Security (TLS) for requests to a storage account

Configure Transport Layer Security (TLS) for a client application

Based on the error message refer to this SO thread gives some idea on your scenario.

SumanthMarigowda-MSFT
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  • In my case, "Account kind: Storage (classic)" which is perhaps older than v1 storage. I tried setting "ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;" as suggested in the SO thread you referenced, but that didn't help. I get the exact same error :( I don't see the option to set the Minimum TLS version under Configuration. I can see that option in a new storage v2 account, but not in the existing classic account. – Turbo Oct 01 '21 at 20:07
  • Can you share the screenshot? – SumanthMarigowda-MSFT Oct 04 '21 at 05:44
  • Edited the question to include the screenshot. – Turbo Oct 05 '21 at 17:45