51 lines
1.5 KiB
Go
51 lines
1.5 KiB
Go
// Copyright 2021-2023 the Pinniped contributors. All Rights Reserved.
|
|
// SPDX-License-Identifier: Apache-2.0
|
|
|
|
//go:build !fips_strict
|
|
|
|
package ptls
|
|
|
|
import (
|
|
"crypto/tls"
|
|
"crypto/x509"
|
|
|
|
"k8s.io/apiserver/pkg/server/options"
|
|
)
|
|
|
|
// secureServingOptionsMinTLSVersion is the minimum tls version in the format
|
|
// expected by SecureServingOptions.MinTLSVersion from
|
|
// k8s.io/apiserver/pkg/server/options.
|
|
const secureServingOptionsMinTLSVersion = "VersionTLS13"
|
|
|
|
// SecureTLSConfigMinTLSVersion is the minimum tls version in the format expected
|
|
// by tls.Config.
|
|
const SecureTLSConfigMinTLSVersion = tls.VersionTLS13
|
|
|
|
func Secure(rootCAs *x509.CertPool) *tls.Config {
|
|
// as of 2021-10-19, Mozilla Guideline v5.6, Go 1.17.2, modern configuration, supports:
|
|
// - Firefox 63
|
|
// - Android 10.0
|
|
// - Chrome 70
|
|
// - Edge 75
|
|
// - Java 11
|
|
// - OpenSSL 1.1.1
|
|
// - Opera 57
|
|
// - Safari 12.1
|
|
// https://ssl-config.mozilla.org/#server=go&version=1.17.2&config=modern&guideline=5.6
|
|
c := Default(rootCAs)
|
|
c.MinVersion = SecureTLSConfigMinTLSVersion // max out the security
|
|
c.CipherSuites = []uint16{
|
|
// TLS 1.3 ciphers are not configurable, but we need to explicitly set them here to make our client hello behave correctly
|
|
// See https://github.com/golang/go/pull/49293
|
|
tls.TLS_AES_128_GCM_SHA256,
|
|
tls.TLS_AES_256_GCM_SHA384,
|
|
tls.TLS_CHACHA20_POLY1305_SHA256,
|
|
}
|
|
return c
|
|
}
|
|
|
|
func secureServing(opts *options.SecureServingOptionsWithLoopback) {
|
|
opts.MinTLSVersion = secureServingOptionsMinTLSVersion
|
|
opts.CipherSuites = nil
|
|
}
|