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noise: unify zero checking of ecdh

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This commit is contained in:
Jason A. Donenfeld 2020-03-17 23:06:56 -06:00
parent b33219c2cf
commit 4739708ca4
3 changed files with 49 additions and 63 deletions
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3
device/device.go
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@ -240,9 +240,6 @@ func (device *Device) SetPrivateKey(sk NoisePrivateKey) error {
for _, peer := range device.peers.keyMap {
handshake := &peer.handshake
handshake.precomputedStaticStatic = device.staticIdentity.privateKey.sharedSecret(handshake.remoteStatic)
if isZero(handshake.precomputedStaticStatic[:]) {
panic("an invalid peer public key made it into the configuration")
}
expiredPeers = append(expiredPeers, peer)
}