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Build requires 1.9+. Update to ciphers for 1.8+ by default, remove 1.5 version

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Signed-off-by: Derek Collison <derek@nats.io>
This commit is contained in:
Derek Collison
2018-06-21 18:46:25 -07:00
parent 6e3bcf4624
commit da3c891203
3 changed files with 7 additions and 92 deletions
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13
README.md
View File

@@ -37,9 +37,9 @@ You can connect to a public NATS server that is running at our demo site: [nats:
You can build the latest version of the server from the `master` branch. The master branch generally should build and pass tests, but may not work correctly in your environment. Note that stable branches of operating system packagers provided by your OS vendor may not be sufficient.
You need [*Go*](http://golang.org/) version 1.5+ [installed](https://golang.org/doc/install) to build the NATS server. We support vendored dependencies, which are fully supported in Go 1.6. For Go 1.5, build with `GO15VENDOREXPERIMENT=1`.
You need [*Go*](http://golang.org/) version 1.9+ [installed](https://golang.org/doc/install) to build the NATS server. We support vendored dependencies.
- Run `go version` to verify that you are running Go 1.5+. (Run `go help` for more guidance.)
- Run `go version` to verify that you are running Go 1.9+. (Run `go help` for more guidance.)
- Clone the <https://github.com/nats-io/gnatsd> repository.
- Run `go build` inside the `/nats-io/gnatsd` directory. A successful build produces no messages and creates the server executable `gnatsd` in the directory.
- Run `go test ./...` to run the unit regression tests.
@@ -618,14 +618,14 @@ Important to note, NATS Authorizations are whitelist only, meaning in order to n
### TLS
As of Release 0.7.0, the server can use modern TLS semantics for client connections, route connections, and the HTTPS monitoring port.
The server requires TLS version 1.2, and sets preferences for modern cipher suites that avoid those known with vulnerabilities. The
server's preferences when building with Go1.5 are as follows.
The server can use modern TLS semantics for client connections, route connections, and the HTTPS monitoring port.
The server requires TLS version 1.2, and sets preferences for modern cipher suites that avoid known vulnerabilities.
```go
func defaultCipherSuites() []uint16 {
return []uint16{
// The SHA384 versions are only in Go1.5+
tls.TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,
tls.TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,
tls.TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,
tls.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
tls.TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,
@@ -640,6 +640,7 @@ func defaultCurvePreferences() []tls.CurveID {
return []tls.CurveID{
tls.CurveP521,
tls.CurveP384,
tls.X25519, // faster than P256, arguably more secure
tls.CurveP256,
}
}

2
server/ciphersuites_1.8.go → server/ciphersuites.go
View File

@@ -11,8 +11,6 @@
// See the License for the specific language governing permissions and
// limitations under the License.
// +build go1.8
package server
import (

84
server/ciphersuites_1.5.go
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@@ -1,84 +0,0 @@
// Copyright 2016-2018 The NATS 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.
// +build go1.5,!go1.8
package server
import (
"crypto/tls"
)
// Where we maintain all of the available ciphers
var cipherMap = map[string]uint16{
"TLS_RSA_WITH_RC4_128_SHA": tls.TLS_RSA_WITH_RC4_128_SHA,
"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_ECDHE_ECDSA_WITH_RC4_128_SHA": tls.TLS_ECDHE_ECDSA_WITH_RC4_128_SHA,
"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_RC4_128_SHA": tls.TLS_ECDHE_RSA_WITH_RC4_128_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,
}
var cipherMapByID = map[uint16]string{
tls.TLS_RSA_WITH_RC4_128_SHA: "TLS_RSA_WITH_RC4_128_SHA",
tls.TLS_RSA_WITH_3DES_EDE_CBC_SHA: "TLS_RSA_WITH_3DES_EDE_CBC_SHA",
tls.TLS_RSA_WITH_AES_128_CBC_SHA: "TLS_RSA_WITH_AES_128_CBC_SHA",
tls.TLS_RSA_WITH_AES_256_CBC_SHA: "TLS_RSA_WITH_AES_256_CBC_SHA",
tls.TLS_ECDHE_ECDSA_WITH_RC4_128_SHA: "TLS_ECDHE_ECDSA_WITH_RC4_128_SHA",
tls.TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA: "TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA",
tls.TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA: "TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA",
tls.TLS_ECDHE_RSA_WITH_RC4_128_SHA: "TLS_ECDHE_RSA_WITH_RC4_128_SHA",
tls.TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA: "TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA",
tls.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA: "TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA",
tls.TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA: "TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA",
tls.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256: "TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256",
tls.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256: "TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256",
tls.TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384: "TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384",
tls.TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384: "TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384",
}
func defaultCipherSuites() []uint16 {
return []uint16{
// The SHA384 versions are only in Go1.5 and beyond
tls.TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,
tls.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
tls.TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,
tls.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
}
}
// Where we maintain available curve preferences
var curvePreferenceMap = map[string]tls.CurveID{
"CurveP256": tls.CurveP256,
"CurveP384": tls.CurveP384,
"CurveP521": tls.CurveP521,
}
// reorder to default to the highest level of security. See:
// https://blog.bracebin.com/achieving-perfect-ssl-labs-score-with-go
func defaultCurvePreferences() []tls.CurveID {
return []tls.CurveID{
tls.CurveP521,
tls.CurveP384,
tls.CurveP256,
}
}