[openSSL] How to get successful connection

Hello All,

I have an issue about TLS handshaking.
I'm using OpenSSL 3.0.10 1 Aug 2023.

[Scenarios]
1. Client sends 'Client hello' with Version TLS1.2.
Version: TLS 1.2 (0x0303)

2. Server responds 'Server hello' with Version TLS1.0.
Version: TLS 1.0 (0x0301)

3. Client act with 'fatal' like below.
Transport Layer Security
    TLSv1 Record Layer: Alert (Level: Fatal, Description: Protocol Version)
        Content Type: Alert (21)
        Version: TLS 1.2 (0x0303)
        Length: 2
        Alert Message
            Level: Fatal (2)
            Description: Protocol Version (70)


I already set minimum TLS version to TLS1.0 with SSL_CTX_set_min_proto_version.
How could I get success in this situation?
Do I have misconfiguration?


BR,
KH.Lee.


Keonho Lee
Sr. SW Engineer, R&D Dept.

+82 2 368 4686
+82 10 3437 4972

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