mirror of
https://github.com/gravitational/teleport.git
synced 2026-11-02 06:08:23 +08:00
Andrew Lytvynov
8492f62d43
By specifying `device_attestation_cas` in `teleport.yaml`, admins can restrict U2F device manufacturers. For example, specifying the yubico attestation CA (https://developers.yubico.com/U2F/yubico-u2f-ca-certs.txt), you can restrict users to only yubikeys. Example error when using the yubico CA and trying to register a Google Titan key: ``` $ tsh mfa add --type u2f --name test && tsh mfa rm test Tap any *registered* security key Tap your *new* security key ERROR: rpc error: code = InvalidArgument desc = U2F device attestation certificate is signed by "CN=Security Key,O=Google", but this cluster only accepts certificates from ["CN=Yubico U2F Root CA Serial 457200631"]; make sure you're using a U2F device from a trusted manufacturer ```
39 lines
1.1 KiB
Go
39 lines
1.1 KiB
Go
/*
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Copyright 2021 Gravitational, Inc.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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// Package tlsutils contains utilities for TLS configuration and formats.
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package tlsutils
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import (
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"crypto/x509"
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"encoding/pem"
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"github.com/gravitational/trace"
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)
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// ParseCertificatePEM parses PEM-encoded x509 certificate.
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func ParseCertificatePEM(bytes []byte) (*x509.Certificate, error) {
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block, _ := pem.Decode(bytes)
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if block == nil {
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return nil, trace.BadParameter("expected PEM-encoded block")
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}
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cert, err := x509.ParseCertificate(block.Bytes)
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if err != nil {
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return nil, trace.BadParameter(err.Error())
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}
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return cert, nil
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}
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