bad-server-hello.txt выглядит вот так
Transport Layer Security
TLSv1.3 Record Layer: Handshake Protocol: Server Hello
Content Type: Handshake (22)
Version: TLS 1.2 (0x0303)
Length: 1210
Handshake Protocol: Server Hello
Handshake Type: Server Hello (2)
Length: 1206
Version: TLS 1.2 (0x0303)
Random: 1ce1e1e54272fd3e6d5a5634df020b214c83c9d0628b863d96d38b3ebe7f3dbd
Session ID Length: 32
Session ID: 35363969c00856f41afd419907488d7895f0aa5b2225ddb9dcced26a6f9774f1
Cipher Suite: TLS_AES_128_GCM_SHA256 (0x1301)
Compression Method: null (0)
Extensions Length: 1134
Extension: key_share (len=1124) X25519Kyber768Draft00
Type: key_share (51)
Length: 1124
Key Share extension
Key Share Entry: Group: X25519Kyber768Draft00, Key Exchange length: 1120
Group: X25519Kyber768Draft00 (25497)
Key Exchange Length: 1120
Key Exchange [truncated]: 0f83d0726ed9b9c02b95e85ac9b9e53d4ac4b69a8538f9c50dc12afbcd03f70d73f466b653b135518f37420b41a643394473d991449c52207e806ff8807417f0a0bde65d21ac8de0a4f3e24d4d490dcf300d81a1561a4a8aac94183b1ae6db04228950fb7756bfa3c697e
Extension: supported_versions (len=2) TLS 1.3
Type: supported_versions (43)
Length: 2
Supported Version: TLS 1.3 (0x0304)
[JA3S Fullstring: 771,4865,51-43]
[JA3S: eb1d94daa7e0344597e756a1fb6e7054]
TLSv1.3 Record Layer: Change Cipher Spec Protocol: Change Cipher Spec
Content Type: Change Cipher Spec (20)
Version: TLS 1.2 (0x0303)
Length: 1
Change Cipher Spec Message
TLS segment data (127 bytes)