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fixes #127 (#175)

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* fix for tls13 when server selects a keyshare  with index > 0

* Update handshake_client_tls13.go

* resolved [uTLS section] problems

---------

Co-authored-by: Chaos Pjeles <chaos@fqr.us>
This commit is contained in:
Chaos Pjeles 2023-03-20 21:16:28 +00:00 • committed by GitHub
parent 17e2929ff7
commit 6d2506f52f
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4 changed files with 67 additions and 35 deletions
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2
u_parrots.go
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@ -1948,6 +1948,7 @@ func (uconn *UConn) ApplyPreset(p *ClientHelloSpec) error {
}
uconn.HandshakeState.Hello = privateHello.getPublicPtr()
uconn.HandshakeState.State13.EcdheParams = ecdheParams
uconn.HandshakeState.State13.KeySharesEcdheParams = make(KeySharesEcdheParameters, 2)
hello := uconn.HandshakeState.Hello
session := uconn.HandshakeState.Session
@ -2050,6 +2051,7 @@ func (uconn *UConn) ApplyPreset(p *ClientHelloSpec) error {
return fmt.Errorf("unsupported Curve in KeyShareExtension: %v."+
"To mimic it, fill the Data(key) field manually", curveID)
}
uconn.HandshakeState.State13.KeySharesEcdheParams.AddEcdheParams(curveID, ecdheParams)
ext.KeyShares[i].Data = ecdheParams.PublicKey()
if !preferredCurveIsSet {
// only do this once for the first non-grease curve