Addresses: []string{"1.2.3.4"},
					Hosts:     []string{"a.example.com", "b.example.com"},
					Ports: []*networking.ServicePort{{
						Number: 80,
						Name:   "http",
					}},
					SubjectAltNames: []string{"san1"},
					Resolution:      networking.ServiceEntry_DNS,
				},
			},
			result: []*workloadapi.Service{
				{
					Name:      "name",
					Namespace: "ns",
					Hostname:  "a.example.com",

package cryptobyte

import (
	encoding_asn1 "encoding/asn1"
	"fmt"
	"math/big"
	"reflect"
	"time"

	"golang.org/x/crypto/cryptobyte/asn1"
)

// This file contains ASN.1-related methods for String and Builder.

// Builder

// AddASN1Int64 appends a DER-encoded ASN.1 INTEGER.
func (b *Builder) AddASN1Int64(v int64) {
	b.addASN1Signed(asn1.INTEGER, v)
}

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// Package asn1 contains supporting types for parsing and building ASN.1
// messages with the cryptobyte package.
package asn1 // import "golang.org/x/crypto/cryptobyte/asn1"

// Tag represents an ASN.1 identifier octet, consisting of a tag number
// (indicating a type) and class (such as context-specific or constructed).

		return nil, fmt.Errorf("the input is not a SAN extension")
	}

	var sequence asn1.RawValue
	if rest, err := asn1.Unmarshal(sanExt.Value, &sequence); err != nil {
		return nil, err
	} else if len(rest) != 0 {
		return nil, fmt.Errorf("the SAN extension is incorrectly encoded")
	}

	// Check the rawValue is a sequence.
	if !sequence.IsCompound || sequence.Tag != asn1.TagSequence || sequence.Class != asn1.ClassUniversal {

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// Package asn1 implements parsing of DER-encoded ASN.1 data structures,
// as defined in ITU-T Rec X.690.
//
// See also “A Layman's Guide to a Subset of ASN.1, BER, and DER,”
// http://luca.ntop.org/Teaching/Appunti/asn1.html.
package asn1

// ASN.1 is a syntax for specifying abstract objects and BER, DER, PER, XER etc

			expectedIDs:    nil,
			expectedErrMsg: "the SAN extension does not exist",
		},
		"Extensions without SAN": {
			exts: []pkix.Extension{
				{Id: asn1.ObjectIdentifier{1, 2, 3, 4}},
				{Id: asn1.ObjectIdentifier{3, 2, 1}},
			},
			expectedIDs:    nil,
			expectedErrMsg: "the SAN extension does not exist",
		},
		"Extensions with bad SAN": {
			exts: []pkix.Extension{

				{},
			},
		},
		leaf: leafSpec{
			sans: []string{"dns:example.com"},
			ekus: []string{"msSGC"},
		},
		requestedEKUs: []ExtKeyUsage{ExtKeyUsageServerAuth},
		expectedError: "incompatible key usage",
	},

	// An invalid DNS SAN should be detected only at validation time so
	// that we can process CA certificates in the wild that have invalid SANs.
	// See https://github.com/golang/go/issues/23995

subjectAltName=@san
[ san ]
DNS.1 = istiod.{{ .SystemNamespace }}
DNS.2 = istiod.{{ .SystemNamespace }}.svc
DNS.3 = istio-pilot.{{ .SystemNamespace }}
DNS.4 = istio-pilot.{{ .SystemNamespace }}.svc
[ req_dn ]
O = Istio
CN = Intermediate CA
`
)

// NewIstioConfig creates an extensions configuration for Istio, using the given system namespace in
// the DNS SANs.

	sans := []string{}

	for _, dnsName := range certConfig.AltNames.DNSNames {
		if dnsName != "" {
			sans = append(sans, dnsName)
		}
	}

	for _, ip := range certConfig.AltNames.IPs {
		sans = append(sans, ip.String())
	}
	return fmt.Sprintf("\n\nDefault SANs are %s", strings.Join(sans, ", "))
}

func runCertsSa(c workflow.RunData) error {

							},
						},
					},
					Sni: "some-sni.com",
				},
				err: nil,
			},
		},
		{
			name: "tls mode SIMPLE, with SANs specified in service entries",
			opts: &buildClusterOpts{
				mutable:         newTestCluster(),
				serviceAccounts: []string{"se-san.com"},
				serviceRegistry: provider.External,
			},
			tls: &networking.ClientTLSSettings{
				Mode:           networking.ClientTLSSettings_SIMPLE,