cfg.VerifyPeerCertificate = func(rawCerts [][]byte, verifiedChains [][]*x509.Certificate) error {
spki := verifiedChains[0][0].RawSubjectPublicKeyInfo
hshTheir := sha256.Sum256(spki)
cfg.VerifyPeerCertificate = func(rawCerts [][]byte, verifiedChains [][]*x509.Certificate) error {
spki := verifiedChains[0][0].RawSubjectPublicKeyInfo
hshTheir := sha256.Sum256(spki)