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Merge pull request #29 from smallstep/sans

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Add SANs support
seb/ct-local
Max 5 years ago committed by GitHub
parent 55155d1207 3415a1fef8
commit 91f183a62a
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
10 changed files with 154 additions and 84 deletions
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13
Gopkg.lock generated
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@ -18,12 +18,9 @@
[[projects]]
branch = "master"
digest = "1:5f3371d6e432e3c4e0ceabb14b5c0679827ce8b96bbd963fa923977782e8e99b"
digest = "1:454adc7f974228ff789428b6dc098638c57a64aa0718f0bd61e53d3cd39d7a75"
name = "github.com/chzyer/readline"
packages = [
".",
"runes",
]
packages = ["."]
pruneopts = "UT"
revision = "2972be24d48e78746da79ba8e24e8b488c9880de"
@ -214,8 +211,8 @@
revision = "de77670473b5492f5d0bce155b5c01534c2d13f7"
[[projects]]
branch = "master"
digest = "1:9e42b7ce7fce33796a870bbbd4e5fdf7c25f3a243ca355d7d9be52f88e3526d5"
branch = "sans"
digest = "1:4c9e30abfe7c119eb4d40287f6c23f854f3ad71c69206d8dc6402e1fef14ac88"
name = "github.com/smallstep/cli"
packages = [
"command",
@ -234,7 +231,7 @@
"utils",
]
pruneopts = "UT"
revision = "a633fd7f7eff2e8ba4026189241a60968b3767d6"
revision = "1379a62e0cf06b164d35e20a912d017ac8bad071"
[[projects]]
branch = "master"

2
Gopkg.toml
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@ -45,7 +45,7 @@ required = [
name = "github.com/go-chi/chi"
[[override]]
branch = "master"
branch = "sans"
name = "github.com/smallstep/cli"
[prune]

24
authority/authorize.go
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@ -8,6 +8,7 @@ import (
"time"
"github.com/pkg/errors"
"github.com/smallstep/cli/crypto/x509util"
"gopkg.in/square/go-jose.v2/jwt"
)
@ -16,6 +17,12 @@ type idUsed struct {
Subject string `json:"sub,omitempty"`
}
// Claims extends jwt.Claims with step attributes.
type Claims struct {
jwt.Claims
SANs []string `json:"sans,omitempty"`
}
// matchesAudience returns true if A and B share at least one element.
func matchesAudience(as, bs []string) bool {
if len(bs) == 0 || len(as) == 0 {
@ -48,7 +55,7 @@ func stripPort(rawurl string) string {
func (a *Authority) Authorize(ott string) ([]interface{}, error) {
var (
errContext = map[string]interface{}{"ott": ott}
claims = jwt.Claims{}
claims = Claims{}
)
// Validate payload
@ -113,10 +120,21 @@ func (a *Authority) Authorize(ott string) ([]interface{}, error) {
http.StatusUnauthorized, errContext}
}
// NOTE: This is for backwards compatibility with older versions of cli
// and certificates. Older versions added the token subject as the only SAN
// in a CSR by default.
if len(claims.SANs) == 0 {
claims.SANs = []string{claims.Subject}
}
dnsNames, ips := x509util.SplitSANs(claims.SANs)
if err != nil {
return nil, err
}
signOps := []interface{}{
&commonNameClaim{claims.Subject},
&dnsNamesClaim{claims.Subject},
&ipAddressesClaim{claims.Subject},
&dnsNamesClaim{dnsNames},
&ipAddressesClaim{ips},
p,
}

43
authority/claims.go
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@ -2,6 +2,7 @@ package authority
import (
"net"
"reflect"
"time"
"github.com/pkg/errors"
@ -42,43 +43,43 @@ func (c *commonNameClaim) Valid(crt *x509.Certificate) error {
}
type dnsNamesClaim struct {
name string
names []string
}
// Valid checks that certificate request common name matches the one configured.
func (c *dnsNamesClaim) Valid(crt *x509.Certificate) error {
if len(crt.DNSNames) == 0 {
return nil
tokMap := make(map[string]int)
for _, e := range c.names {
tokMap[e] = 1
}
for _, name := range crt.DNSNames {
if name != c.name {
return errors.Errorf("DNS names claim failed - got %s, want %s", name, c.name)
}
crtMap := make(map[string]int)
for _, e := range crt.DNSNames {
crtMap[e] = 1
}
if !reflect.DeepEqual(tokMap, crtMap) {
return errors.Errorf("DNS names claim failed - got %s, want %s", crt.DNSNames, c.names)
}
return nil
}
type ipAddressesClaim struct {
name string
ips []net.IP
}
// Valid checks that certificate request common name matches the one configured.
func (c *ipAddressesClaim) Valid(crt *x509.Certificate) error {
if len(crt.IPAddresses) == 0 {
return nil
tokMap := make(map[string]int)
for _, e := range c.ips {
tokMap[e.String()] = 1
}
// If it's an IP validate that only that ip is in IP addresses
if requestedIP := net.ParseIP(c.name); requestedIP != nil {
for _, ip := range crt.IPAddresses {
if !ip.Equal(requestedIP) {
return errors.Errorf("IP addresses claim failed - got %s, want %s", ip, requestedIP)
}
}
return nil
crtMap := make(map[string]int)
for _, e := range crt.IPAddresses {
crtMap[e.String()] = 1
}
return errors.Errorf("IP addresses claim failed - got %v, want none", crt.IPAddresses)
if !reflect.DeepEqual(tokMap, crtMap) {
return errors.Errorf("IP Addresses claim failed - got %v, want %v", crt.IPAddresses, c.ips)
}
return nil
}
// certTemporalClaim validates the certificate temporal validity settings.

42
authority/claims_test.go
Unescape Escape View File

@ -52,23 +52,28 @@ func TestIPAddressesClaim_Valid(t *testing.T) {
crt *x509.Certificate
err error
}{
"unexpected-ip": {
iac: &ipAddressesClaim{name: "127.0.0.1"},
"unexpected-ip-in-crt": {
iac: &ipAddressesClaim{ips: []net.IP{net.ParseIP("127.0.0.1")}},
crt: &x509.Certificate{IPAddresses: []net.IP{net.ParseIP("127.0.0.1"), net.ParseIP("1.1.1.1")}},
err: errors.New("IP addresses claim failed - got 1.1.1.1, want 127.0.0.1"),
err: errors.New("IP Addresses claim failed - got [127.0.0.1 1.1.1.1], want [127.0.0.1]"),
},
"missing-ip-in-crt": {
iac: &ipAddressesClaim{ips: []net.IP{net.ParseIP("127.0.0.1"), net.ParseIP("1.1.1.1")}},
crt: &x509.Certificate{IPAddresses: []net.IP{net.ParseIP("127.0.0.1")}},
err: errors.New("IP Addresses claim failed - got [127.0.0.1], want [127.0.0.1 1.1.1.1]"),
},
"invalid-matcher-nonempty-ips": {
iac: &ipAddressesClaim{name: "invalid"},
iac: &ipAddressesClaim{ips: []net.IP{}},
crt: &x509.Certificate{IPAddresses: []net.IP{net.ParseIP("127.0.0.1")}},
err: errors.New("IP addresses claim failed - got [127.0.0.1], want none"),
err: errors.New("IP Addresses claim failed - got [127.0.0.1], want []"),
},
"ok": {
iac: &ipAddressesClaim{name: "127.0.0.1"},
iac: &ipAddressesClaim{ips: []net.IP{net.ParseIP("127.0.0.1")}},
crt: &x509.Certificate{IPAddresses: []net.IP{net.ParseIP("127.0.0.1")}},
},
"ok-empty-ips": {
iac: &ipAddressesClaim{name: "127.0.0.1"},
crt: &x509.Certificate{IPAddresses: []net.IP{}},
"ok-multiple-identical-ip-entries": {
iac: &ipAddressesClaim{ips: []net.IP{net.ParseIP("127.0.0.1")}},
crt: &x509.Certificate{IPAddresses: []net.IP{net.ParseIP("127.0.0.1"), net.ParseIP("127.0.0.1"), net.ParseIP("127.0.0.1")}},
},
}
@ -92,21 +97,22 @@ func TestDNSNamesClaim_Valid(t *testing.T) {
crt *x509.Certificate
err error
}{
"wrong-dns-name": {
dnc: &dnsNamesClaim{name: "foo"},
"unexpected-dns-name-in-crt": {
dnc: &dnsNamesClaim{names: []string{"foo"}},
crt: &x509.Certificate{DNSNames: []string{"foo", "bar"}},
err: errors.New("DNS names claim failed - got bar, want foo"),
err: errors.New("DNS names claim failed - got [foo bar], want [foo]"),
},
"ok": {
dnc: &dnsNamesClaim{name: "foo"},
crt: &x509.Certificate{DNSNames: []string{"foo"}},
dnc: &dnsNamesClaim{names: []string{"foo", "bar"}},
crt: &x509.Certificate{DNSNames: []string{"bar", "foo"}},
},
"ok-empty-dnsNames": {
dnc: &dnsNamesClaim{"foo"},
crt: &x509.Certificate{},
"missing-dns-name-in-crt": {
dnc: &dnsNamesClaim{names: []string{"foo", "bar"}},
crt: &x509.Certificate{DNSNames: []string{"foo"}},
err: errors.New("DNS names claim failed - got [foo], want [foo bar]"),
},
"ok-multiple-identical-dns-entries": {
dnc: &dnsNamesClaim{name: "foo"},
dnc: &dnsNamesClaim{names: []string{"foo"}},
crt: &x509.Certificate{DNSNames: []string{"foo", "foo", "foo"}},
},
}

4
authority/tls.go
Unescape Escape View File

@ -129,10 +129,6 @@ func (a *Authority) Sign(csr *x509.CertificateRequest, signOpts SignOptions, ext
return nil, nil, &apiError{errors.Wrap(err, "sign: error converting x509 csr to stepx509 csr"),
http.StatusInternalServerError, errContext}
}
// DNSNames and IPAddresses are validated but to avoid duplications we will
// clean them as x509util.NewLeafProfileWithCSR will set the right values.
stepCSR.DNSNames = nil
stepCSR.IPAddresses = nil
issIdentity := a.intermediateIdentity
leaf, err := x509util.NewLeafProfileWithCSR(stepCSR, issIdentity.Crt,

2
ca/bootstrap_test.go
Unescape Escape View File

@ -94,6 +94,7 @@ func generateBootstrapToken(ca, subject, sha string) string {
cl := struct {
SHA string `json:"sha"`
jwt.Claims
SANS []string `json:"sans"`
}{
SHA: sha,
Claims: jwt.Claims{
@ -104,6 +105,7 @@ func generateBootstrapToken(ca, subject, sha string) string {
Expiry: jwt.NewNumericDate(now.Add(time.Minute)),
Audience: []string{ca + "/sign"},
},
SANS: []string{subject},
}
raw, err := jwt.Signed(sig).Claims(cl).CompactSerialize()
if err != nil {

73
ca/ca_test.go
Unescape Escape View File

@ -154,13 +154,19 @@ ZEp7knvU2psWRw==
"fail commonname-claim": func(t *testing.T) *signTest {
jti, err := randutil.ASCII(32)
assert.FatalError(t, err)
cl := jwt.Claims{
Subject: "invalid",
Issuer: "step-cli",
NotBefore: jwt.NewNumericDate(now),
Expiry: jwt.NewNumericDate(now.Add(time.Minute)),
Audience: validAud,
ID: jti,
cl := struct {
jwt.Claims
SANS []string `json:"sans"`
}{
Claims: jwt.Claims{
Subject: "invalid",
Issuer: "step-cli",
NotBefore: jwt.NewNumericDate(now),
Expiry: jwt.NewNumericDate(now.Add(time.Minute)),
Audience: validAud,
ID: jti,
},
SANS: []string{"invalid"},
}
raw, err := jwt.Signed(sig).Claims(cl).CompactSerialize()
assert.FatalError(t, err)
@ -181,13 +187,52 @@ ZEp7knvU2psWRw==
"ok": func(t *testing.T) *signTest {
jti, err := randutil.ASCII(32)
assert.FatalError(t, err)
cl := jwt.Claims{
Subject: "test.smallstep.com",
Issuer: "step-cli",
NotBefore: jwt.NewNumericDate(now),
Expiry: jwt.NewNumericDate(now.Add(time.Minute)),
Audience: validAud,
ID: jti,
cl := struct {
jwt.Claims
SANS []string `json:"sans"`
}{
Claims: jwt.Claims{
Subject: "test.smallstep.com",
Issuer: "step-cli",
NotBefore: jwt.NewNumericDate(now),
Expiry: jwt.NewNumericDate(now.Add(time.Minute)),
Audience: validAud,
ID: jti,
},
SANS: []string{"test.smallstep.com"},
}
raw, err := jwt.Signed(sig).Claims(cl).CompactSerialize()
assert.FatalError(t, err)
csr, err := getCSR(priv)
assert.FatalError(t, err)
body, err := json.Marshal(&api.SignRequest{
CsrPEM: api.CertificateRequest{CertificateRequest: csr},
OTT: raw,
NotBefore: now,
NotAfter: leafExpiry,
})
assert.FatalError(t, err)
return &signTest{
ca: ca,
body: string(body),
status: http.StatusCreated,
}
},
"ok-backwards-compat-missing-subject-SAN": func(t *testing.T) *signTest {
jti, err := randutil.ASCII(32)
assert.FatalError(t, err)
cl := struct {
jwt.Claims
SANS []string `json:"sans"`
}{
Claims: jwt.Claims{
Subject: "test.smallstep.com",
Issuer: "step-cli",
NotBefore: jwt.NewNumericDate(now),
Expiry: jwt.NewNumericDate(now.Add(time.Minute)),
Audience: validAud,
ID: jti,
},
}
raw, err := jwt.Signed(sig).Claims(cl).CompactSerialize()
assert.FatalError(t, err)

15
ca/client.go
Unescape Escape View File

@ -15,7 +15,6 @@ import (
"encoding/pem"
"io"
"io/ioutil"
"net"
"net/http"
"net/url"
"strconv"
@ -23,6 +22,8 @@ import (
"github.com/pkg/errors"
"github.com/smallstep/certificates/api"
"github.com/smallstep/certificates/authority"
"github.com/smallstep/cli/crypto/x509util"
"gopkg.in/square/go-jose.v2/jwt"
)
@ -442,7 +443,7 @@ func CreateSignRequest(ott string) (*api.SignRequest, crypto.PrivateKey, error)
if err != nil {
return nil, nil, errors.Wrap(err, "error parsing ott")
}
var claims jwt.Claims
var claims authority.Claims
if err := token.UnsafeClaimsWithoutVerification(&claims); err != nil {
return nil, nil, errors.Wrap(err, "error parsing ott")
}
@ -452,17 +453,15 @@ func CreateSignRequest(ott string) (*api.SignRequest, crypto.PrivateKey, error)
return nil, nil, errors.Wrap(err, "error generating key")
}
dnsNames, ips := x509util.SplitSANs(claims.SANs)
template := &x509.CertificateRequest{
Subject: pkix.Name{
CommonName: claims.Subject,
},
SignatureAlgorithm: x509.ECDSAWithSHA256,
}
if ip := net.ParseIP(claims.Subject); ip != nil {
template.IPAddresses = append(template.IPAddresses, ip)
} else {
template.DNSNames = append(template.DNSNames, claims.Subject)
DNSNames: dnsNames,
IPAddresses: ips,
}
csr, err := x509.CreateCertificateRequest(rand.Reader, template, pk)

20
ca/tls_test.go
Unescape Escape View File

@ -39,13 +39,19 @@ func generateOTT(subject string) string {
if err != nil {
panic(err)
}
cl := jwt.Claims{
ID: id,
Subject: subject,
Issuer: "mariano",
NotBefore: jwt.NewNumericDate(now),
Expiry: jwt.NewNumericDate(now.Add(time.Minute)),
Audience: []string{"https://127.0.0.1:0/sign"},
cl := struct {
jwt.Claims
SANS []string `json:"sans"`
}{
Claims: jwt.Claims{
ID: id,
Subject: subject,
Issuer: "mariano",
NotBefore: jwt.NewNumericDate(now),
Expiry: jwt.NewNumericDate(now.Add(time.Minute)),
Audience: []string{"https://127.0.0.1:0/sign"},
},
SANS: []string{subject},
}
raw, err := jwt.Signed(sig).Claims(cl).CompactSerialize()
if err != nil {

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