Unexpected panic on wrong public key

[mrpalide]

Describe the bug
Suddenly get panic on running dmsg-server

Environment information:

• OS: Linux
• Platform: Ubuntu 22.04 amd64

Logs:

2023/05/31 04:02:18 Invalid public key
panic: Invalid public key

goroutine 175212 [running]:
log.Panic({0xc005aa5cf8?, 0x0?, 0x0?})
	/usr/lib/go-1.18/src/log/log.go:385 +0x65
github.com/skycoin/skycoin/src/cipher.MustNewPubKey({0xc000eb5410?, 0x20?, 0x20?})
	/root/dmsg/vendor/github.com/skycoin/skycoin/src/cipher/crypto.go:114 +0xc5
github.com/skycoin/dmsg/pkg/noise.Secp256k1.DH({}, {0xc00044b3d1, 0x20, 0x20}, {0xc000eb5410?, 0x80?, 0x0?})
	/root/dmsg/pkg/noise/dh.go:26 +0x54
github.com/skycoin/noise.(*HandshakeState).ReadMessage(0xc004ed7520, {0x0, 0x0, 0x0}, {0xc001e0e002, 0x23, 0x1ffe})
	/root/dmsg/vendor/github.com/skycoin/noise/state.go:450 +0x48f
github.com/skycoin/dmsg/pkg/noise.(*Noise).ProcessHandshakeMessage(0xb9dbd0?, {0xc001e0e002?, 0x40cd76?, 0x8fc800?})
	/root/dmsg/pkg/noise/noise.go:116 +0xbd
github.com/skycoin/dmsg/pkg/noise.ResponderHandshake(0xc000c79110, 0xc0032437b8?, {0x7feadc886358, 0xc002ac51f0})
	/root/dmsg/pkg/noise/read_writer.go:242 +0x5c
github.com/skycoin/dmsg/pkg/noise.(*ReadWriter).Handshake.func1()
	/root/dmsg/pkg/noise/read_writer.go:181 +0xbf
created by github.com/skycoin/dmsg/pkg/noise.(*ReadWriter).Handshake
	/root/dmsg/pkg/noise/read_writer.go:177 +0x98