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AndersG
CONTRIBUTOR *

Any changes to supported TLS-versions or cipher-suites since last service window?

av AndersG

Hi,

Did you change anything regarding TLS-version or supported cipher-suites on the last service window that occured on august 17:th?

 

We have experienced problems with TLS-handshaking on a server running an old Windows server version. It worked fine before the update.

 

The message that we get from our .NET-code is "Authentication failed because the remote party sent a TLS alert: 'HandshakeFailure'".

 

2 SVAR 2
Godkänd lösning
AndersG
CONTRIBUTOR *

av AndersG

Thank you Fredrik. 😊

 

I'll have to check what ciphers that specific server supports.

Godkänd lösning
Fredrik Kurki
VISMA

av Fredrik Kurki

Hi Anders

 

The accepted Cypher suites are the following:

TLS_AES_128_GCM_SHA256
TLS_AES_256_GCM_SHA384
TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384

BR, 

 

Fredrik

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