Initial Packet
1100mmmm
1 byte
Version
4 bytes
Dest CID
len + data
Src CID
len + data
Token
len + data
Length
var int
PN + CRYPTO frame
(ClientHello) + Padding
encrypted
← unencrypted →
ClientHello contents (iroh)
Supported Cipher Suites
AES-128-GCM, AES-256-GCM, ...
Key Shares
X25519
ALPN
user-defined
Supported TLS Versions
TLS 1.3
Signature Algorithms
Ed25519
Certificate Type
Raw Public Key (RFC 7250)