gmsm/pkcs8/example_test.go
2025-03-13 16:50:28 +08:00

318 lines
9.8 KiB
Go

package pkcs8_test
import (
"encoding/hex"
"encoding/pem"
"fmt"
"math/big"
"os"
"github.com/emmansun/gmsm/pkcs"
"github.com/emmansun/gmsm/pkcs8"
"github.com/emmansun/gmsm/sm2"
"github.com/emmansun/gmsm/sm9"
"github.com/emmansun/gmsm/smx509"
"golang.org/x/crypto/cryptobyte"
)
func ExampleMarshalPrivateKey_withoutPassword() {
// real private key should be from secret storage, or generate directly
privKey, _ := hex.DecodeString("6c5a0a0b2eed3cbec3e4f1252bfe0e28c504a1c6bf1999eebb0af9ef0f8e6c85")
d := new(big.Int).SetBytes(privKey)
testkey := new(sm2.PrivateKey)
testkey.Curve = sm2.P256()
testkey.D = d
testkey.PublicKey.X, testkey.PublicKey.Y = testkey.ScalarBaseMult(testkey.D.Bytes())
// generate der bytes
der, err := pkcs8.MarshalPrivateKey(testkey, nil, nil)
if err != nil {
fmt.Fprintf(os.Stderr, "Error from MarshalPrivateKey: %s\n", err)
return
}
// encode der bytes to pem
block := &pem.Block{Bytes: der, Type: "PRIVATE KEY"}
pemContent := string(pem.EncodeToMemory(block))
fmt.Printf("%v\n", pemContent)
}
func ExampleParsePrivateKey_withoutPassword() {
const privateKeyPem = `
-----BEGIN PRIVATE KEY-----
MIGHAgEAMBMGByqGSM49AgEGCCqBHM9VAYItBG0wawIBAQQgbFoKCy7tPL7D5PEl
K/4OKMUEoca/GZnuuwr57w+ObIWhRANCAASDVuZCpA69GNKbo1MvvZ87vujwJ8P2
85pbovhwNp+ZiJgfXv5V0cXN9sDvKwcIR6FPf99CcqjfCcRC8wWK+Uuh
-----END PRIVATE KEY-----`
block, _ := pem.Decode([]byte(privateKeyPem))
if block == nil {
fmt.Fprintf(os.Stderr, "Failed to parse PEM block\n")
return
}
pk, params, err := pkcs8.ParsePrivateKey(block.Bytes, nil)
if err != nil {
fmt.Fprintf(os.Stderr, "Error from ParsePrivateKey: %s\n", err)
return
}
if params == nil && pk != nil {
fmt.Println("ok")
} else {
fmt.Println("fail")
}
// Output: ok
}
func ExampleParsePKCS8PrivateKey_withoutPassword() {
const privateKeyPem = `
-----BEGIN PRIVATE KEY-----
MIGHAgEAMBMGByqGSM49AgEGCCqBHM9VAYItBG0wawIBAQQgbFoKCy7tPL7D5PEl
K/4OKMUEoca/GZnuuwr57w+ObIWhRANCAASDVuZCpA69GNKbo1MvvZ87vujwJ8P2
85pbovhwNp+ZiJgfXv5V0cXN9sDvKwcIR6FPf99CcqjfCcRC8wWK+Uuh
-----END PRIVATE KEY-----`
block, _ := pem.Decode([]byte(privateKeyPem))
if block == nil {
fmt.Fprintf(os.Stderr, "Failed to parse PEM block\n")
return
}
pk, err := pkcs8.ParsePKCS8PrivateKey(block.Bytes)
if err != nil {
fmt.Fprintf(os.Stderr, "Error from ParsePKCS8PrivateKey: %s\n", err)
return
}
if pk != nil {
fmt.Println("ok")
} else {
fmt.Println("fail")
}
// Output: ok
}
func ExampleParsePKCS8PrivateKeySM2_withoutPassword() {
const privateKeyPem = `
-----BEGIN PRIVATE KEY-----
MIGHAgEAMBMGByqGSM49AgEGCCqBHM9VAYItBG0wawIBAQQgbFoKCy7tPL7D5PEl
K/4OKMUEoca/GZnuuwr57w+ObIWhRANCAASDVuZCpA69GNKbo1MvvZ87vujwJ8P2
85pbovhwNp+ZiJgfXv5V0cXN9sDvKwcIR6FPf99CcqjfCcRC8wWK+Uuh
-----END PRIVATE KEY-----`
block, _ := pem.Decode([]byte(privateKeyPem))
if block == nil {
fmt.Fprintf(os.Stderr, "Failed to parse PEM block\n")
return
}
pk, err := pkcs8.ParsePKCS8PrivateKeySM2(block.Bytes)
if err != nil {
fmt.Fprintf(os.Stderr, "Error from ParsePKCS8PrivateKeySM2: %s\n", err)
return
}
if pk != nil {
fmt.Println("ok")
} else {
fmt.Println("fail")
}
// Output: ok
}
func ExampleMarshalPrivateKey() {
// real private key should be from secret storage, or generate directly
privKey, _ := hex.DecodeString("6c5a0a0b2eed3cbec3e4f1252bfe0e28c504a1c6bf1999eebb0af9ef0f8e6c85")
d := new(big.Int).SetBytes(privKey)
testkey := new(sm2.PrivateKey)
testkey.Curve = sm2.P256()
testkey.D = d
testkey.PublicKey.X, testkey.PublicKey.Y = testkey.ScalarBaseMult(testkey.D.Bytes())
password := []byte("Password1")
opts := &pkcs8.Opts{
Cipher: pkcs.SM4CBC,
KDFOpts: pkcs8.PBKDF2Opts{
SaltSize: 16, IterationCount: 16, HMACHash: pkcs8.SM3,
},
}
// generate der bytes
der, err := pkcs8.MarshalPrivateKey(testkey, password, opts)
if err != nil {
fmt.Fprintf(os.Stderr, "Error from MarshalPrivateKey: %s\n", err)
return
}
// encode der bytes to pem
block := &pem.Block{Bytes: der, Type: "ENCRYPTED PRIVATE KEY"}
pemContent := string(pem.EncodeToMemory(block))
fmt.Printf("%v\n", pemContent)
}
func ExampleParsePrivateKey() {
const privateKeyPem = `
-----BEGIN ENCRYPTED PRIVATE KEY-----
MIH2MGEGCSqGSIb3DQEFDTBUMDQGCSqGSIb3DQEFDDAnBBDa6ckWJNP3QBD7MIF8
4nVqAgEQAgEQMA0GCSqBHM9VAYMRAgUAMBwGCCqBHM9VAWgCBBDMUgr+5Y/XN2g9
mPGiISzGBIGQytwK98/ET4WrS0H7AsUri6FTqztrzAvgzFl3+s9AsaYtUlzE3EzE
x6RWxo8kpKO2yj0a/Jh9WZCD4XAcoZ9aMopiWlOdpXJr/iQlMGdirCYIoF37lHMc
jZHNffmk4ii7NxCfjrzpiFq4clYsNMXeSEnq1tuOEur4kYcjHYSIFc9bPG656a60
+SIJsJuPFi0f
-----END ENCRYPTED PRIVATE KEY-----`
password := []byte("Password1")
block, _ := pem.Decode([]byte(privateKeyPem))
if block == nil {
fmt.Fprintf(os.Stderr, "Failed to parse PEM block\n")
return
}
pk, params, err := pkcs8.ParsePrivateKey(block.Bytes, password)
if err != nil {
fmt.Fprintf(os.Stderr, "Error from ParsePrivateKey: %s\n", err)
return
}
if params != nil && pk != nil {
fmt.Println("ok")
} else {
fmt.Println("fail")
}
// Output: ok
}
func ExampleParsePKCS8PrivateKey() {
const privateKeyPem = `
-----BEGIN ENCRYPTED PRIVATE KEY-----
MIH2MGEGCSqGSIb3DQEFDTBUMDQGCSqGSIb3DQEFDDAnBBDa6ckWJNP3QBD7MIF8
4nVqAgEQAgEQMA0GCSqBHM9VAYMRAgUAMBwGCCqBHM9VAWgCBBDMUgr+5Y/XN2g9
mPGiISzGBIGQytwK98/ET4WrS0H7AsUri6FTqztrzAvgzFl3+s9AsaYtUlzE3EzE
x6RWxo8kpKO2yj0a/Jh9WZCD4XAcoZ9aMopiWlOdpXJr/iQlMGdirCYIoF37lHMc
jZHNffmk4ii7NxCfjrzpiFq4clYsNMXeSEnq1tuOEur4kYcjHYSIFc9bPG656a60
+SIJsJuPFi0f
-----END ENCRYPTED PRIVATE KEY-----`
password := []byte("Password1")
block, _ := pem.Decode([]byte(privateKeyPem))
if block == nil {
fmt.Fprintf(os.Stderr, "Failed to parse PEM block\n")
return
}
pk, err := pkcs8.ParsePKCS8PrivateKey(block.Bytes, password)
if err != nil {
fmt.Fprintf(os.Stderr, "Error from ParsePKCS8PrivateKey: %s\n", err)
return
}
if pk != nil {
fmt.Println("ok")
} else {
fmt.Println("fail")
}
// Output: ok
}
func ExampleParsePKCS8PrivateKeySM2() {
const privateKeyPem = `
-----BEGIN ENCRYPTED PRIVATE KEY-----
MIH2MGEGCSqGSIb3DQEFDTBUMDQGCSqGSIb3DQEFDDAnBBDa6ckWJNP3QBD7MIF8
4nVqAgEQAgEQMA0GCSqBHM9VAYMRAgUAMBwGCCqBHM9VAWgCBBDMUgr+5Y/XN2g9
mPGiISzGBIGQytwK98/ET4WrS0H7AsUri6FTqztrzAvgzFl3+s9AsaYtUlzE3EzE
x6RWxo8kpKO2yj0a/Jh9WZCD4XAcoZ9aMopiWlOdpXJr/iQlMGdirCYIoF37lHMc
jZHNffmk4ii7NxCfjrzpiFq4clYsNMXeSEnq1tuOEur4kYcjHYSIFc9bPG656a60
+SIJsJuPFi0f
-----END ENCRYPTED PRIVATE KEY-----`
password := []byte("Password1")
block, _ := pem.Decode([]byte(privateKeyPem))
if block == nil {
fmt.Fprintf(os.Stderr, "Failed to parse PEM block\n")
return
}
pk, err := pkcs8.ParsePKCS8PrivateKeySM2(block.Bytes, password)
if err != nil {
fmt.Fprintf(os.Stderr, "Error from ParsePKCS8PrivateKeySM2: %s\n", err)
return
}
if pk != nil {
fmt.Println("ok")
} else {
fmt.Println("fail")
}
// Output: ok
}
func ExampleParsePKCS8PrivateKeySM2_removePassword() {
const privateKeyPem = `
-----BEGIN ENCRYPTED PRIVATE KEY-----
MIH2MGEGCSqGSIb3DQEFDTBUMDQGCSqGSIb3DQEFDDAnBBDa6ckWJNP3QBD7MIF8
4nVqAgEQAgEQMA0GCSqBHM9VAYMRAgUAMBwGCCqBHM9VAWgCBBDMUgr+5Y/XN2g9
mPGiISzGBIGQytwK98/ET4WrS0H7AsUri6FTqztrzAvgzFl3+s9AsaYtUlzE3EzE
x6RWxo8kpKO2yj0a/Jh9WZCD4XAcoZ9aMopiWlOdpXJr/iQlMGdirCYIoF37lHMc
jZHNffmk4ii7NxCfjrzpiFq4clYsNMXeSEnq1tuOEur4kYcjHYSIFc9bPG656a60
+SIJsJuPFi0f
-----END ENCRYPTED PRIVATE KEY-----`
password := []byte("Password1")
block, _ := pem.Decode([]byte(privateKeyPem))
if block == nil {
fmt.Fprintf(os.Stderr, "Failed to parse PEM block\n")
return
}
pk, err := pkcs8.ParsePKCS8PrivateKeySM2(block.Bytes, password)
if err != nil {
fmt.Fprintf(os.Stderr, "Error from ParsePKCS8PrivateKeySM2: %s\n", err)
return
}
der, err := smx509.MarshalPKCS8PrivateKey(pk)
if err != nil {
fmt.Fprintf(os.Stderr, "Error from MarshalPKCS8PrivateKey: %s\n", err)
return
}
block = &pem.Block{Bytes: der, Type: "PRIVATE KEY"}
pemContent := string(pem.EncodeToMemory(block))
fmt.Printf("%v\n", pemContent)
// Output: -----BEGIN PRIVATE KEY-----
// MIGHAgEAMBMGByqGSM49AgEGCCqBHM9VAYItBG0wawIBAQQgbFoKCy7tPL7D5PEl
// K/4OKMUEoca/GZnuuwr57w+ObIWhRANCAASDVuZCpA69GNKbo1MvvZ87vujwJ8P2
// 85pbovhwNp+ZiJgfXv5V0cXN9sDvKwcIR6FPf99CcqjfCcRC8wWK+Uuh
// -----END PRIVATE KEY-----
}
func ExampleMarshalPrivateKey_withoutPasswordSM9MasterSignKey() {
// real private key should be from secret storage, or generate directly
kb, _ := hex.DecodeString("0130E78459D78545CB54C587E02CF480CE0B66340F319F348A1D5B1F2DC5F4")
var b cryptobyte.Builder
b.AddASN1BigInt(new(big.Int).SetBytes(kb))
kb, _ = b.Bytes()
testkey, err := sm9.UnmarshalSignMasterPrivateKeyASN1(kb)
if err != nil {
panic(err)
}
// generate der bytes
der, err := pkcs8.MarshalPrivateKey(testkey, nil, nil)
if err != nil {
fmt.Fprintf(os.Stderr, "Error from MarshalPrivateKey: %s\n", err)
return
}
// encode der bytes to pem
block := &pem.Block{Bytes: der, Type: "SM9 SIGN PRIVATE KEY"}
pemContent := string(pem.EncodeToMemory(block))
fmt.Printf("%v\n", pemContent)
}
func ExampleParseSM9SignMasterPrivateKey_withoutPassword() {
const privateKeyPem = `
-----BEGIN SM9 SIGN PRIVATE KEY-----
MIHGAgEAMBUGCCqBHM9VAYIuBgkqgRzPVQGCLgEEgakwgaYCHwEw54RZ14VFy1TF
h+As9IDOC2Y0DzGfNIodWx8txfQDgYIABJ9kCAswhPcz5Ir/S0G1ZQEc4HEcXjks
+wqxtnkblMQIKduhFhUtH3hs6EPtJKO1c0FNIXc4apLdjxTWVpbqXjJphQk4q+oB
ErVzKfRH46DLrT4v2xp38zXonhQI0O8cJUHgClPdpTLaGnzgJ7ekb3QQBuhfXN/w
cw51wF+04yFt
-----END SM9 SIGN PRIVATE KEY-----`
block, _ := pem.Decode([]byte(privateKeyPem))
if block == nil {
fmt.Fprintf(os.Stderr, "Failed to parse PEM block\n")
return
}
pk, err := pkcs8.ParseSM9SignMasterPrivateKey(block.Bytes)
if err != nil {
fmt.Fprintf(os.Stderr, "Error from ParseSM9SignMasterPrivateKey: %s\n", err)
return
}
if pk != nil {
fmt.Println("ok")
} else {
fmt.Println("fail")
}
// Output: ok
}