mirror of
https://github.com/gravitational/teleport.git
synced 2026-09-24 16:17:11 +08:00
Ev Kontsevoy
37319d6b41
First part of addressing #1033 is ability to load credentials from the credentials file(s). This commit adds -i flag processing, i.e. a certificate can be fed via a cert.file and used to login.
48 lines
1.3 KiB
Go
48 lines
1.3 KiB
Go
/*
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Copyright 2015 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 sshutils
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import (
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"fmt"
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"golang.org/x/crypto/ssh"
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)
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// NewSigner returns new ssh Signer from private key + certificate pair. The
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// signer can be used to create "auth methods" i.e. login into Teleport SSH
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// servers.
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func NewSigner(keyBytes, certBytes []byte) (ssh.Signer, error) {
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keySigner, err := ssh.ParsePrivateKey(keyBytes)
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if err != nil {
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return nil, fmt.Errorf("failed to parse host private key, err: %v", err)
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}
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pubkey, _, _, _, err := ssh.ParseAuthorizedKey(certBytes)
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if err != nil {
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return nil, fmt.Errorf(
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"failed to parse server CA certificate '%v', err: %v",
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string(certBytes), err)
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}
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cert, ok := pubkey.(*ssh.Certificate)
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if !ok {
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return nil, fmt.Errorf("expected CA certificate, got %T ", pubkey)
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}
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return ssh.NewCertSigner(cert, keySigner)
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}
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