mirror of
https://github.com/etcd-io/etcd.git
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40 lines
1.2 KiB
Go
40 lines
1.2 KiB
Go
// Copyright 2018 The etcd Authors
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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package tlsutil
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import "crypto/tls"
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// GetCipherSuite returns the corresponding cipher suite,
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// and boolean value if it is supported.
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func GetCipherSuite(s string) (uint16, bool) {
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for _, c := range tls.CipherSuites() {
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if s == c.Name {
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return c.ID, true
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}
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}
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for _, c := range tls.InsecureCipherSuites() {
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if s == c.Name {
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return c.ID, true
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}
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}
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switch s {
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case "TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305":
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return tls.TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256, true
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case "TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305":
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return tls.TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256, true
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}
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return 0, false
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}
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