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Merge pull request #105064 from knight42/refactor-switch-to-stdlib-cipher

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refactor: switch to tls cipher suite in stdlib
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Kubernetes Prow Robot 2021-09-21 11:56:42 -07:00 committed by GitHub
commit d5f39ebe4d
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3 changed files with 81 additions and 106 deletions
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49
staging/src/k8s.io/component-base/cli/flag/ciphersuites_flag.go
View File

@ -23,39 +23,24 @@ import (
"k8s.io/apimachinery/pkg/util/sets"
)
// ciphers maps strings into tls package cipher constants in
// https://golang.org/pkg/crypto/tls/#pkg-constants
// to be replaced by tls.CipherSuites() when the project migrates to go1.14.
var ciphers = map[string]uint16{
"TLS_RSA_WITH_3DES_EDE_CBC_SHA": tls.TLS_RSA_WITH_3DES_EDE_CBC_SHA,
"TLS_RSA_WITH_AES_128_CBC_SHA": tls.TLS_RSA_WITH_AES_128_CBC_SHA,
"TLS_RSA_WITH_AES_256_CBC_SHA": tls.TLS_RSA_WITH_AES_256_CBC_SHA,
"TLS_RSA_WITH_AES_128_GCM_SHA256": tls.TLS_RSA_WITH_AES_128_GCM_SHA256,
"TLS_RSA_WITH_AES_256_GCM_SHA384": tls.TLS_RSA_WITH_AES_256_GCM_SHA384,
"TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA": tls.TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA,
"TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA": tls.TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,
"TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA": tls.TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA,
"TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA": tls.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
"TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA": tls.TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,
"TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256": tls.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
"TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256": tls.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
"TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384": tls.TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,
"TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384": tls.TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,
"TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305": tls.TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,
"TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305": tls.TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,
"TLS_AES_128_GCM_SHA256": tls.TLS_AES_128_GCM_SHA256,
"TLS_CHACHA20_POLY1305_SHA256": tls.TLS_CHACHA20_POLY1305_SHA256,
"TLS_AES_256_GCM_SHA384": tls.TLS_AES_256_GCM_SHA384,
}
var (
// ciphers maps strings into tls package cipher constants in
// https://golang.org/pkg/crypto/tls/#pkg-constants
ciphers = map[string]uint16{}
insecureCiphers = map[string]uint16{}
)
// to be replaced by tls.InsecureCipherSuites() when the project migrates to go1.14.
var insecureCiphers = map[string]uint16{
"TLS_RSA_WITH_RC4_128_SHA": tls.TLS_RSA_WITH_RC4_128_SHA,
"TLS_RSA_WITH_AES_128_CBC_SHA256": tls.TLS_RSA_WITH_AES_128_CBC_SHA256,
"TLS_ECDHE_ECDSA_WITH_RC4_128_SHA": tls.TLS_ECDHE_ECDSA_WITH_RC4_128_SHA,
"TLS_ECDHE_RSA_WITH_RC4_128_SHA": tls.TLS_ECDHE_RSA_WITH_RC4_128_SHA,
"TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256": tls.TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256,
"TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256": tls.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256,
func init() {
for _, suite := range tls.CipherSuites() {
ciphers[suite.Name] = suite.ID
}
// keep legacy names for backward compatibility
ciphers["TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305"] = tls.TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256
ciphers["TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305"] = tls.TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
for _, suite := range tls.InsecureCipherSuites() {
insecureCiphers[suite.Name] = suite.ID
}
}
// InsecureTLSCiphers returns the cipher suites implemented by crypto/tls which have

30
staging/src/k8s.io/component-base/cli/flag/ciphersuites_flag_114.go
View File

@ -1,30 +0,0 @@
//go:build go1.14
// +build go1.14
/*
Copyright 2020 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package flag
import (
"crypto/tls"
)
func init() {
// support official IANA names as well on go1.14
ciphers["TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256"] = tls.TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
ciphers["TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256"] = tls.TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256
}

108
staging/src/k8s.io/component-base/cli/flag/ciphersuites_flag_test.go
View File

@ -18,10 +18,7 @@ package flag
import (
"crypto/tls"
"fmt"
"go/importer"
"reflect"
"strings"
"testing"
)
@ -61,11 +58,74 @@ func TestStrToUInt16(t *testing.T) {
expected: nil,
expected_error: true,
},
{
// All existing cipher suites
flag: []string{
"TLS_RSA_WITH_3DES_EDE_CBC_SHA",
"TLS_RSA_WITH_AES_128_CBC_SHA",
"TLS_RSA_WITH_AES_256_CBC_SHA",
"TLS_RSA_WITH_AES_128_GCM_SHA256",
"TLS_RSA_WITH_AES_256_GCM_SHA384",
"TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA",
"TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA",
"TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA",
"TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA",
"TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA",
"TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256",
"TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256",
"TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384",
"TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384",
"TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305",
"TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305",
"TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256",
"TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256",
"TLS_AES_128_GCM_SHA256",
"TLS_CHACHA20_POLY1305_SHA256",
"TLS_AES_256_GCM_SHA384",
"TLS_RSA_WITH_RC4_128_SHA",
"TLS_RSA_WITH_AES_128_CBC_SHA256",
"TLS_ECDHE_ECDSA_WITH_RC4_128_SHA",
"TLS_ECDHE_RSA_WITH_RC4_128_SHA",
"TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256",
"TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256",
},
expected: []uint16{
tls.TLS_RSA_WITH_3DES_EDE_CBC_SHA,
tls.TLS_RSA_WITH_AES_128_CBC_SHA,
tls.TLS_RSA_WITH_AES_256_CBC_SHA,
tls.TLS_RSA_WITH_AES_128_GCM_SHA256,
tls.TLS_RSA_WITH_AES_256_GCM_SHA384,
tls.TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA,
tls.TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,
tls.TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA,
tls.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
tls.TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,
tls.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
tls.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
tls.TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,
tls.TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,
tls.TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,
tls.TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,
tls.TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256,
tls.TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256,
tls.TLS_AES_128_GCM_SHA256,
tls.TLS_CHACHA20_POLY1305_SHA256,
tls.TLS_AES_256_GCM_SHA384,
tls.TLS_RSA_WITH_RC4_128_SHA,
tls.TLS_RSA_WITH_AES_128_CBC_SHA256,
tls.TLS_ECDHE_ECDSA_WITH_RC4_128_SHA,
tls.TLS_ECDHE_RSA_WITH_RC4_128_SHA,
tls.TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256,
tls.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256,
},
},
}
for i, test := range tests {
uIntFlags, err := TLSCipherSuites(test.flag)
if reflect.DeepEqual(uIntFlags, test.expected) == false {
if !reflect.DeepEqual(uIntFlags, test.expected) {
t.Errorf("%d: expected %+v, got %+v", i, test.expected, uIntFlags)
}
if test.expected_error && err == nil {
@ -73,43 +133,3 @@ func TestStrToUInt16(t *testing.T) {
}
}
}
func TestConstantMaps(t *testing.T) {
pkg, err := importer.Default().Import("crypto/tls")
if err != nil {
fmt.Printf("error: %s\n", err.Error())
return
}
discoveredVersions := map[string]bool{}
discoveredCiphers := map[string]bool{}
for _, declName := range pkg.Scope().Names() {
if strings.HasPrefix(declName, "VersionTLS") {
discoveredVersions[declName] = true
}
if strings.HasPrefix(declName, "TLS_") && !strings.HasPrefix(declName, "TLS_FALLBACK_") {
discoveredCiphers[declName] = true
}
}
acceptedCiphers := allCiphers()
for k := range discoveredCiphers {
if _, ok := acceptedCiphers[k]; !ok {
t.Errorf("discovered cipher tls.%s not in ciphers map", k)
}
}
for k := range acceptedCiphers {
if _, ok := discoveredCiphers[k]; !ok {
t.Errorf("ciphers map has %s not in tls package", k)
}
}
for k := range discoveredVersions {
if _, ok := versions[k]; !ok {
t.Errorf("discovered version tls.%s not in version map", k)
}
}
for k := range versions {
if _, ok := discoveredVersions[k]; !ok {
t.Errorf("versions map has %s not in tls package", k)
}
}
}