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Support SPKI Fingerprint Pinning 

Support SPKI Fingerprint Pinning for TLSObject
This commit is contained in:
Yue Yin 2023-02-17 16:01:24 +08:00 committed by yuhan6665
parent 267d93f7bd
commit 03b8c094de
6 changed files with 169 additions and 23 deletions
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38
infra/conf/transport_internet.go
View File

@ -343,19 +343,20 @@ func (c *TLSCertConfig) Build() (*tls.Certificate, error) {
}
type TLSConfig struct {
Insecure bool `json:"allowInsecure"`
Certs []*TLSCertConfig `json:"certificates"`
ServerName string `json:"serverName"`
ALPN *StringList `json:"alpn"`
EnableSessionResumption bool `json:"enableSessionResumption"`
DisableSystemRoot bool `json:"disableSystemRoot"`
MinVersion string `json:"minVersion"`
MaxVersion string `json:"maxVersion"`
CipherSuites string `json:"cipherSuites"`
PreferServerCipherSuites bool `json:"preferServerCipherSuites"`
Fingerprint string `json:"fingerprint"`
RejectUnknownSNI bool `json:"rejectUnknownSni"`
PinnedPeerCertificateChainSha256 *[]string `json:"pinnedPeerCertificateChainSha256"`
Insecure bool `json:"allowInsecure"`
Certs []*TLSCertConfig `json:"certificates"`
ServerName string `json:"serverName"`
ALPN *StringList `json:"alpn"`
EnableSessionResumption bool `json:"enableSessionResumption"`
DisableSystemRoot bool `json:"disableSystemRoot"`
MinVersion string `json:"minVersion"`
MaxVersion string `json:"maxVersion"`
CipherSuites string `json:"cipherSuites"`
PreferServerCipherSuites bool `json:"preferServerCipherSuites"`
Fingerprint string `json:"fingerprint"`
RejectUnknownSNI bool `json:"rejectUnknownSni"`
PinnedPeerCertificateChainSha256 *[]string `json:"pinnedPeerCertificateChainSha256"`
PinnedPeerCertificatePublicKeySha256 *[]string `json:"pinnedPeerCertificatePublicKeySha256"`
}
// Build implements Buildable.
@ -400,6 +401,17 @@ func (c *TLSConfig) Build() (proto.Message, error) {
}
}
if c.PinnedPeerCertificatePublicKeySha256 != nil {
config.PinnedPeerCertificatePublicKeySha256 = [][]byte{}
for _, v := range *c.PinnedPeerCertificatePublicKeySha256 {
hashValue, err := base64.StdEncoding.DecodeString(v)
if err != nil {
return nil, err
}
config.PinnedPeerCertificatePublicKeySha256 = append(config.PinnedPeerCertificatePublicKeySha256, hashValue)
}
}
return config, nil
}

14
transport/internet/tls/config.go
View File

@ -266,6 +266,20 @@ func (c *Config) verifyPeerCert(rawCerts [][]byte, verifiedChains [][]*x509.Cert
}
return newError("peer cert is unrecognized: ", base64.StdEncoding.EncodeToString(hashValue))
}
if c.PinnedPeerCertificatePublicKeySha256 != nil {
for _, v := range verifiedChains {
for _, cert := range v {
publicHash := GenerateCertPublicKeyHash(cert)
for _, c := range c.PinnedPeerCertificatePublicKeySha256 {
if hmac.Equal(publicHash, c) {
return nil
}
}
}
}
return newError("peer public key is unrecognized.")
}
return nil
}

38
transport/internet/tls/config.pb.go
View File

@ -203,6 +203,11 @@ type Config struct {
// @Document This value replace allow_insecure.
// @Critical
PinnedPeerCertificateChainSha256 [][]byte `protobuf:"bytes,13,rep,name=pinned_peer_certificate_chain_sha256,json=pinnedPeerCertificateChainSha256,proto3" json:"pinned_peer_certificate_chain_sha256,omitempty"`
// @Document A pinned certificate public key sha256 hash.
// @Document If the server's public key hash does not match this value, the connection will be aborted.
// @Document This value replace allow_insecure.
// @Critical
PinnedPeerCertificatePublicKeySha256 [][]byte `protobuf:"bytes,14,rep,name=pinned_peer_certificate_public_key_sha256,json=pinnedPeerCertificatePublicKeySha256,proto3" json:"pinned_peer_certificate_public_key_sha256,omitempty"`
}
func (x *Config) Reset() {
@ -328,6 +333,13 @@ func (x *Config) GetPinnedPeerCertificateChainSha256() [][]byte {
return nil
}
func (x *Config) GetPinnedPeerCertificatePublicKeySha256() [][]byte {
if x != nil {
return x.PinnedPeerCertificatePublicKeySha256
}
return nil
}
var File_transport_internet_tls_config_proto protoreflect.FileDescriptor
var file_transport_internet_tls_config_proto_rawDesc = []byte{
@ -357,7 +369,7 @@ var file_transport_internet_tls_config_proto_rawDesc = []byte{
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@ -396,15 +408,21 @@ var file_transport_internet_tls_config_proto_rawDesc = []byte{
0x74, 0x69, 0x66, 0x69, 0x63, 0x61, 0x74, 0x65, 0x5f, 0x63, 0x68, 0x61, 0x69, 0x6e, 0x5f, 0x73,
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}
var (

7
transport/internet/tls/config.proto
View File

@ -76,4 +76,11 @@ message Config {
@Critical
*/
repeated bytes pinned_peer_certificate_chain_sha256 = 13;
/* @Document A pinned certificate public key sha256 hash.
@Document If the server's public key hash does not match this value, the connection will be aborted.
@Document This value replace allow_insecure.
@Critical
*/
repeated bytes pinned_peer_certificate_public_key_sha256 = 14;
}

6
transport/internet/tls/pin.go
View File

@ -2,6 +2,7 @@ package tls
import (
"crypto/sha256"
"crypto/x509"
"encoding/base64"
"encoding/pem"
)
@ -34,3 +35,8 @@ func GenerateCertChainHash(rawCerts [][]byte) []byte {
}
return hashValue
}
func GenerateCertPublicKeyHash(cert *x509.Certificate) []byte {
out := sha256.Sum256(cert.RawSubjectPublicKeyInfo)
return out[:]
}

89
transport/internet/tls/pin_test.go
View File

@ -1,6 +1,9 @@
package tls
import (
"crypto/x509"
"encoding/base64"
"encoding/pem"
"testing"
"github.com/stretchr/testify/assert"
@ -108,3 +111,89 @@ tzY45d4mjPs0fKCFKSsVM6YT0tX4NwIKsOaeQg30WLtRyDwYm6ma/a/UUUS0FloZ
assert.Equal(t, "FW3SVMCL6um2wVltOdgJ3DpI82aredw83YoCblkMkVM=", hash)
})
}
func TestCalculateCertPublicKeyHash(t *testing.T) {
const Single = `-----BEGIN CERTIFICATE-----
MIINWTCCC0GgAwIBAgITLQAxbA/A+lw/1sLDAAAAADFsDzANBgkqhkiG9w0BAQsF
ADBPMQswCQYDVQQGEwJVUzEeMBwGA1UEChMVTWljcm9zb2Z0IENvcnBvcmF0aW9u
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XF1a/qnao6nMjyTIyQ==
-----END CERTIFICATE-----
`
t.Run("singlepublickey", func(t *testing.T) {
block, _ := pem.Decode([]byte(Single))
cert, err := x509.ParseCertificate(block.Bytes)
assert.Equal(t, err, nil)
hash := GenerateCertPublicKeyHash(cert)
hashstr := base64.StdEncoding.EncodeToString(hash)
assert.Equal(t, "xI/4mNm8xF9uDT4vA9G1+aKAaybwNlkRECnN8vGAHTM=", hashstr)
})
}