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Hi,
Thanks for the info.
I will review it.
BR,
KH.Lee.
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keonho.lee@xxxxxxxxx
보낸 사람: Andrew Dinh <andrewd@xxxxxxxxxxx>
보낸 날짜: 2024년 12월 3일 화요일 오후 8:16
받는 사람: openssl-users <openssl-users@xxxxxxxxxxx>
참조: Keonho Lee <Keonho.Lee@xxxxxxxxx>
제목: Re: [openSSL] How to get successful connection
CAUTION:External sender. Report and Do not click unexpected links or attachments
Using TLS 1.0 is insecure and not recommended. However, if you do need this functionality, please take a look at this documentation, particularly under SECURE RENEGOTIATION: https://docs.openssl.org/master/man3/SSL_CTX_set_options/
On Sunday, November 24, 2024 at 11:41:39 PM UTC-8 Keonho Lee wrote:
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.
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Keonho Lee
Sr. SW Engineer, R&D Dept.
+82 2 368 4686
+82 10 3437 4972
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Keonho Lee
Sr. SW Engineer, R&D Dept.
+82 2 368 4686
+82 10 3437 4972
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This electronic message, including attachments, is intended only for the use of the individual or company named above or to which
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