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38cd455e4d
To help accommodate web browser interactions with websockets, when a streaming logs session is requested for the same actor while already serving a session for that user in a separate request, the original request will be closed and the new request start streaming logs instead. This should help with rogue sessions holding on for too long with no client on the other side (before idle timeout or connection close).
47 lines
1.1 KiB
Go
47 lines
1.1 KiB
Go
// Copyright 2022 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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//go:build go1.20
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package curve25519
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import "crypto/ecdh"
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func x25519(dst *[32]byte, scalar, point []byte) ([]byte, error) {
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curve := ecdh.X25519()
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pub, err := curve.NewPublicKey(point)
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if err != nil {
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return nil, err
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}
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priv, err := curve.NewPrivateKey(scalar)
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if err != nil {
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return nil, err
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}
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out, err := priv.ECDH(pub)
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if err != nil {
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return nil, err
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}
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copy(dst[:], out)
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return dst[:], nil
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}
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func scalarMult(dst, scalar, point *[32]byte) {
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if _, err := x25519(dst, scalar[:], point[:]); err != nil {
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// The only error condition for x25519 when the inputs are 32 bytes long
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// is if the output would have been the all-zero value.
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for i := range dst {
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dst[i] = 0
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}
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}
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}
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func scalarBaseMult(dst, scalar *[32]byte) {
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curve := ecdh.X25519()
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priv, err := curve.NewPrivateKey(scalar[:])
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if err != nil {
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panic("curve25519: internal error: scalarBaseMult was not 32 bytes")
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}
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copy(dst[:], priv.PublicKey().Bytes())
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}
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