51 lines
1018 B
Go
51 lines
1018 B
Go
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package peers
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import (
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"crypto/ecdsa"
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"crypto/rand"
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"crypto/sha256"
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udpp2p "github.com/schollz/peerdiscovery"
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"github.com/status-im/status-go/protocol/protobuf"
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)
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type LocalPairingPeerHello struct {
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protobuf.LocalPairingPeerHello
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Discovered udpp2p.Discovered
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}
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func NewLocalPairingPeerHello(id []byte, name, deviceType string, k *ecdsa.PrivateKey) (*LocalPairingPeerHello, error) {
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h := new(LocalPairingPeerHello)
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h.PeerId = id
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h.DeviceName = name
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h.DeviceType = deviceType
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err := h.sign(k)
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if err != nil {
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return nil, err
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}
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return h, nil
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}
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func (h *LocalPairingPeerHello) hash() []byte {
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dHash := sha256.Sum256(append(h.PeerId, []byte(h.DeviceName+h.DeviceType)...))
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return dHash[:]
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}
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func (h *LocalPairingPeerHello) sign(k *ecdsa.PrivateKey) error {
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s, err := ecdsa.SignASN1(rand.Reader, k, h.hash())
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if err != nil {
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return err
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}
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h.Signature = s
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return nil
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}
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func (h *LocalPairingPeerHello) verify(k *ecdsa.PublicKey) bool {
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return ecdsa.VerifyASN1(k, h.hash(), h.Signature)
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}
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