How to use makeIssuer method of x509 Package
Best K6 code snippet using x509.makeIssuer
x509.go
Source:x509.go 
...105 parsed, err := parseCertificate(encoded)106 if err != nil {107 throw(ctx, err)108 }109 return makeIssuer(parsed.Issuer)110}111// GetSubject extracts certificate subject112func (X509) GetSubject(ctx context.Context, encoded []byte) Subject {113 parsed, err := parseCertificate(encoded)114 if err != nil {115 throw(ctx, err)116 }117 return makeSubject(parsed.Subject)118}119func parseCertificate(encoded []byte) (*x509.Certificate, error) {120 decoded, _ := pem.Decode(encoded)121 if decoded == nil {122 err := errors.New("failed to decode certificate PEM file")123 return nil, err124 }125 parsed, err := x509.ParseCertificate(decoded.Bytes)126 if err != nil {127 err = errors.Wrap(err, "failed to parse certificate")128 return nil, err129 }130 return parsed, nil131}132func makeCertificate(parsed *x509.Certificate) (Certificate, error) {133 publicKey, err := makePublicKey(parsed.PublicKey)134 if err != nil {135 return Certificate{}, err136 }137 return Certificate{138 Subject: makeSubject(parsed.Subject),139 Issuer: makeIssuer(parsed.Issuer),140 NotBefore: iso8601(parsed.NotBefore),141 NotAfter: iso8601(parsed.NotAfter),142 AltNames: altNames(parsed),143 SignatureAlgorithm: signatureAlgorithm(parsed.SignatureAlgorithm),144 FingerPrint: fingerPrint(parsed),145 PublicKey: publicKey,146 }, nil147}148func makeSubject(subject pkix.Name) Subject {149 return Subject{150 CommonName: subject.CommonName,151 Country: first(subject.Country),152 PostalCode: first(subject.PostalCode),153 StateOrProvinceName: first(subject.Province),154 LocalityName: first(subject.Locality),155 StreetAddress: first(subject.StreetAddress),156 OrganizationName: first(subject.Organization),157 OrganizationalUnitName: subject.OrganizationalUnit,158 Names: makeRdns(subject.Names),159 }160}161func makeIssuer(issuer pkix.Name) Issuer {162 return Issuer{163 CommonName: issuer.CommonName,164 Country: first(issuer.Country),165 StateOrProvinceName: first(issuer.Province),166 LocalityName: first(issuer.Locality),167 OrganizationName: first(issuer.Organization),168 Names: makeRdns(issuer.Names),169 }170}171func makePublicKey(parsed interface{}) (PublicKey, error) {172 var algorithm string173 switch parsed.(type) {174 case *dsa.PublicKey:175 algorithm = "DSA"...
tls.go
Source:tls.go
...21type issuer struct {22 key crypto.Signer23 cert *x509.Certificate24}25func makeIssuer(t *testing.T) *issuer {26 const op = "testsupport/makeIssuer"27 t.Helper()28 key, err := rsa.GenerateKey(rand.Reader, rsaBits)29 if err != nil {30 t.Fatalf("%s: %v", op, err)31 }32 cert, err := makeRootCert(key)33 if err != nil {34 t.Fatalf("%s: %v", op, err)35 }36 return &issuer{key: key, cert: cert}37}38func makeKey(t *testing.T) *rsa.PrivateKey {39 const op = "testsupport/makeKey"40 t.Helper()41 key, err := rsa.GenerateKey(rand.Reader, 2048)42 if err != nil {43 t.Fatalf("%s: %v", op, err)44 }45 return key46}47func makeRootCert(key crypto.Signer) (*x509.Certificate, error) {48 serial, err := rand.Int(rand.Reader, big.NewInt(math.MaxInt64))49 if err != nil {50 return nil, err51 }52 skid, err := calculateSKID(key.Public())53 if err != nil {54 return nil, err55 }56 template := &x509.Certificate{57 Subject: pkix.Name{58 CommonName: "minica root ca " + hex.EncodeToString(serial.Bytes()[:3]),59 },60 SerialNumber: serial,61 NotBefore: time.Now(),62 NotAfter: time.Now().AddDate(100, 0, 0),63 SubjectKeyId: skid,64 AuthorityKeyId: skid,65 KeyUsage: x509.KeyUsageDigitalSignature | x509.KeyUsageCertSign,66 ExtKeyUsage: []x509.ExtKeyUsage{x509.ExtKeyUsageServerAuth, x509.ExtKeyUsageClientAuth},67 BasicConstraintsValid: true,68 IsCA: true,69 MaxPathLenZero: true,70 }71 der, err := x509.CreateCertificate(rand.Reader, template, template, key.Public(), key)72 if err != nil {73 return nil, err74 }75 return x509.ParseCertificate(der)76}77func calculateSKID(pubKey crypto.PublicKey) ([]byte, error) {78 spkiASN1, err := x509.MarshalPKIXPublicKey(pubKey)79 if err != nil {80 return nil, err81 }82 var spki struct {83 Algorithm pkix.AlgorithmIdentifier84 SubjectPublicKey asn1.BitString85 }86 _, err = asn1.Unmarshal(spkiASN1, &spki)87 if err != nil {88 return nil, err89 }90 skid := sha1.Sum(spki.SubjectPublicKey.Bytes)91 return skid[:], nil92}93func sign(t *testing.T, iss *issuer, cn string) (*rsa.PrivateKey, *x509.Certificate) {94 const op = "testsupport/sign"95 t.Helper()96 if cn == "" {97 t.Fatalf("%s: no common name", op)98 }99 key := makeKey(t)100 serial, err := rand.Int(rand.Reader, big.NewInt(math.MaxInt64))101 if err != nil {102 t.Fatalf("%s: %v", op, err)103 }104 template := &x509.Certificate{105 Subject: pkix.Name{106 CommonName: cn,107 },108 SerialNumber: serial,109 NotBefore: time.Now(),110 NotAfter: time.Now().AddDate(0, 0, 30),111 KeyUsage: x509.KeyUsageDigitalSignature | x509.KeyUsageKeyEncipherment,112 ExtKeyUsage: []x509.ExtKeyUsage{x509.ExtKeyUsageServerAuth, x509.ExtKeyUsageClientAuth},113 BasicConstraintsValid: true,114 IsCA: false,115 }116 der, err := x509.CreateCertificate(rand.Reader, template, iss.cert, key.Public(), iss.key)117 if err != nil {118 t.Fatalf("%s: %v", op, err)119 }120 cert, err := x509.ParseCertificate(der)121 if err != nil {122 t.Fatalf("%s: %v", op, err)123 }124 return key, cert125}126func encodePrivateKey(t *testing.T, key *rsa.PrivateKey) string {127 const op = "testsupport/encodePrivateKey"128 var buf bytes.Buffer129 t.Helper()130 bs := x509.MarshalPKCS1PrivateKey(key)131 err := pem.Encode(&buf, &pem.Block{132 Type: "RSA PRIVATE KEY",133 Bytes: bs,134 })135 if err != nil {136 t.Fatalf("%s: %v", op, err)137 }138 return buf.String()139}140func encodeCert(t *testing.T, cert *x509.Certificate) string {141 const op = "testsupport/encodeCert"142 var buf bytes.Buffer143 t.Helper()144 err := pem.Encode(&buf, &pem.Block{145 Type: "CERTIFICATE",146 Bytes: cert.Raw,147 })148 if err != nil {149 t.Fatalf("%s: %v", op, err)150 }151 return buf.String()152}153// TLSPair represents a TLS key and certificate pair.154type TLSPair struct {155 Key string156 Cert string157}158// NewTLSPair generates new pair of TLS certificate and private key for the159// passed common name.160func NewTLSPair(t *testing.T, cn string) *TLSPair {161 t.Helper()162 iss := makeIssuer(t)163 key, cert := sign(t, iss, cn)164 return &TLSPair{165 Key: encodePrivateKey(t, key),166 Cert: encodeCert(t, cert),167 }168}...
4Q5wwbag_y.go
Source:4Q5wwbag_y.go
...7 "crypto/x509/pkix"8 "log"9 "math/big"10)11func makeIssuer(name string, key crypto.Signer) (*x509.Certificate, error) {12 template := &x509.Certificate{13 SerialNumber: big.NewInt(1),14 Subject: pkix.Name{15 CommonName: name,16 },17 IsCA: true,18 BasicConstraintsValid: true,19 }20 der, err := x509.CreateCertificate(rand.Reader, template, template, key.Public(), key)21 if err != nil {22 return nil, err23 }24 cert, err := x509.ParseCertificate(der)25 if err != nil {26 return nil, err27 }28 return cert, nil29}30func main() {31 issuerKey, err := rsa.GenerateKey(rand.Reader, 512)32 if err != nil {33 log.Fatal(err)34 }35 eeKey, err := rsa.GenerateKey(rand.Reader, 512)36 if err != nil {37 log.Fatal(err)38 }39 issuer1, err := makeIssuer("Issuer1", issuerKey)40 if err != nil {41 log.Fatal(err)42 }43 issuer2, err := makeIssuer("Issuer2", issuerKey)44 if err != nil {45 log.Fatal(err)46 }47 eeTemplate := &x509.Certificate{48 SerialNumber: big.NewInt(2),49 Subject: pkix.Name{50 CommonName: "EE",51 },52 }53 eeDER, err := x509.CreateCertificate(rand.Reader, eeTemplate, issuer1, eeKey.Public(), issuerKey)54 if err != nil {55 log.Fatal(err)56 }57 ee, err := x509.ParseCertificate(eeDER)...
makeIssuer
Using AI Code Generation
1import (2func main() {3 priv, err := rsa.GenerateKey(rand.Reader, 2048)4 if err != nil {5 panic(err)6 }7 notBefore := time.Now()8 notAfter := notBefore.Add(365 * 24 * time.Hour)9 serialNumberLimit := new(big.Int).Lsh(big.NewInt(1), 128)10 serialNumber, err := rand.Int(rand.Reader, serialNumberLimit)11 if err != nil {12 panic(err)13 }14 template := x509.Certificate{15 Subject: pkix.Name{16 Organization: []string{"Acme Co"},17 },18 ExtKeyUsage: []x509.ExtKeyUsage{x509.ExtKeyUsageServerAuth},19 }20 derBytes, err := x509.CreateCertificate(rand.Reader, &template, &template, &priv.PublicKey, priv)21 if err != nil {22 panic(err)23 }24 cert, err := x509.ParseCertificate(derBytes)25 if err != nil {26 panic(err)27 }28 opts := x509.VerifyOptions{29 Roots: x509.NewCertPool(),30 KeyUsages: []x509.ExtKeyUsage{x509.ExtKeyUsageServerAuth},31 }32 if _, err := cert.Verify(opts); err != nil {33 panic(err)34 }35 fmt.Println(cert.Subject.CommonName)36}
makeIssuer
Using AI Code Generation
1import (2func main() {3 privatekey, err := rsa.GenerateKey(rand.Reader, 2048)4 if err != nil {5 fmt.Println(err)6 os.Exit(1)7 }8 notBefore := time.Now()9 notAfter := notBefore.Add(365 * 24 * time.Hour)10 serialNumberLimit := new(big.Int).Lsh(big.NewInt(1), 128)11 serialNumber, err := rand.Int(rand.Reader, serialNumberLimit)12 if err != nil {13 fmt.Println(err)14 os.Exit(1)15 }16 template := x509.Certificate{17 Subject: pkix.Name{18 Organization: []string{"My Company Name"},19 },20 ExtKeyUsage: []x509.ExtKeyUsage{x509.ExtKeyUsageServerAuth},21 }22 derBytes, err := x509.CreateCertificate(rand.Reader, &template, &template, &privatekey.PublicKey, privatekey)23 if err != nil {24 fmt.Println(err)25 os.Exit(1)26 }27 certOut, err := os.Create("cert.pem")28 if err != nil {29 fmt.Println(err)30 os.Exit(1)31 }32 pem.Encode(certOut, &pem.Block{Type: "CERTIFICATE", Bytes: derBytes})33 certOut.Close()34 fmt.Println("wrote cert.pem")35 keyOut, err := os.Create("key.pem")36 if err != nil {37 fmt.Println(err)38 os.Exit(1)39 }40 pem.Encode(keyOut, &pem.Block{Type: "RSA PRIVATE KEY", Bytes: x509.MarshalPKCS1PrivateKey(privatekey)})41 keyOut.Close()42 fmt.Println("w
makeIssuer
Using AI Code Generation
1import (2func main() {3 privateKey, err := rsa.GenerateKey(rand.Reader, 2048)4 if err != nil {5 fmt.Println(err)6 }7 notBefore := time.Now()8 notAfter := notBefore.Add(365 * 24 * time.Hour)9 serialNumberLimit := new(big.Int).Lsh(big.NewInt(1), 128)10 serialNumber, err := rand.Int(rand.Reader, serialNumberLimit)11 if err != nil {12 fmt.Println(err)13 }14 template := x509.Certificate{15 Subject: pkix.Name{16 Organization: []string{"Acme Co"},17 },18 ExtKeyUsage: []x509.ExtKeyUsage{x509.ExtKeyUsageServerAuth},19 }20 derBytes, err := x509.CreateCertificate(rand.Reader, &template, &template, &privateKey.PublicKey, privateKey)21 if err != nil {22 fmt.Println(err)23 }24 certOut, err := os.Create("cert.pem")25 if err != nil {26 fmt.Println(err)27 }28 pem.Encode(certOut, &pem.Block{Type: "CERTIFICATE", Bytes: derBytes})29 certOut.Close()30 fmt.Println("written cert.pem\n")31 keyOut, err := os.OpenFile("key.pem", os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0600)32 if err != nil {33 fmt.Println(err)34 }35 pem.Encode(keyOut, &pem.Block{Type: "RSA PRIVATE KEY", Bytes: x509.MarshalPKCS1PrivateKey(privateKey)})36 keyOut.Close()37 fmt.Println("written key.pem")38}
makeIssuer
Using AI Code Generation
1import (2func main() {3 priv, _ := rsa.GenerateKey(rand.Reader, 2048)4 notBefore := time.Now()5 notAfter := notBefore.Add(365 * 24 * time.Hour)6 tmpl := x509.Certificate{7 SerialNumber: big.NewInt(1),8 Subject: pkix.Name{9 Organization: []string{"Acme Co"},10 },11 }12 derBytes, _ := x509.CreateCertificate(rand.Reader, &tmpl, &tmpl, &priv.PublicKey, priv)13 cert, _ := x509.ParseCertificate(derBytes)14 tmpl2 := x509.Certificate{15 }16 derBytes2, _ := x509.CreateCertificate(rand.Reader, &tmpl2, &tmpl, &priv.PublicKey, priv)17 cert2, _ := x509.ParseCertificate(derBytes2)18 fmt.Println(cert)19 fmt.Println(cert2)20}21 Version: 3 (0x2)22 Serial Number: 1 (0x1)23 Public-Key: (2048 bit)
makeIssuer
Using AI Code Generation
1import (2func main() {3 cert := x509.Certificate{4 SerialNumber: big.NewInt(1653),5 Subject: pkix.Name{6 Organization: []string{"example"},7 },8 NotBefore: time.Now(),9 NotAfter: time.Now().Add(365 * 24 * time.Hour),10 ExtKeyUsage: []x509.ExtKeyUsage{x509.ExtKeyUsageServerAuth},11 }12 derBytes, err := x509.CreateCertificate(rand.Reader, &cert, &cert, publicKey, privateKey)13 if err != nil {14 fmt.Println(err)15 }16 pemBlock := &pem.Block{17 }18 pem.Encode(os.Stdout, pemBlock)19}
makeIssuer
Using AI Code Generation
1import (2func main() {3 cert, err := x509.ParseCertificate([]byte(certPEM))4 if err != nil {5 fmt.Println("Error parsing cert")6 os.Exit(1)7 }8 cert, err = x509.ParseCertificate([]byte(certPEM))9 if err != nil {10 fmt.Println("Error parsing cert")11 os.Exit(1)12 }13 cert, err = x509.ParseCertificate([]byte(certPEM))14 if err != nil {15 fmt.Println("Error parsing cert")16 os.Exit(1)17 }18 cert, err = x509.ParseCertificate([]byte(certPEM))19 if err != nil {20 fmt.Println("Error parsing cert")21 os.Exit(1)22 }23 cert, err = x509.ParseCertificate([]byte(certPEM))24 if err != nil {25 fmt.Println("Error parsing cert")26 os.Exit(1)27 }28 cert, err = x509.ParseCertificate([]byte(certPEM))29 if err != nil {30 fmt.Println("Error parsing cert")31 os.Exit(1)32 }33 cert, err = x509.ParseCertificate([]byte(certPEM))34 if err != nil {35 fmt.Println("Error parsing cert")36 os.Exit(1)37 }38 cert, err = x509.ParseCertificate([]byte(certPEM))39 if err != nil {40 fmt.Println("Error parsing cert")41 os.Exit(1)42 }43 cert, err = x509.ParseCertificate([]byte(certPEM))44 if err != nil {45 fmt.Println("Error parsing cert")46 os.Exit(1)47 }48 cert, err = x509.ParseCertificate([]byte(certPEM))49 if err != nil {50 fmt.Println("Error parsing cert")51 os.Exit(1)52 }53 cert, err = x509.ParseCertificate([]
makeIssuer
Using AI Code Generation
1import (2func main() {3template := x509.Certificate{4SerialNumber: big.NewInt(1),5Subject: pkix.Name{6Organization: []string{"MyOrg"},7OrganizationalUnit: []string{"MyOU"},8},9NotBefore: time.Now(),10NotAfter: time.Now().Add(365 * 24 * time.Hour),11ExtKeyUsage: []x509.ExtKeyUsage{x509.ExtKeyUsageServerAuth},12}13priv, err := rsa.GenerateKey(rand.Reader, 2048)14if err != nil {15panic(err)16}17cert, err := x509.CreateCertificate(rand.Reader, &template, &template, &priv.PublicKey, priv)18if err != nil {19panic(err)20}21err = writeCert("cert.pem", cert)22if err != nil {23panic(err)24}25err = writeKey("key.pem", priv)26if err != nil {27panic(err)28}29}30import (31func main() {32cert, err := ioutil.ReadFile("cert.pem")33if err != nil {34log.Fatal(err)35}36parsedCert, err := x509.ParseCertificate(cert)37if err != nil {38log.Fatal(err)39}40log.Println("Subject:", parsedCert.Subject)41log.Println("Issuer:", parsedCert.Issuer)42log.Println("Not Before:", parsedCert.NotBefore)43log.Println("Not After:", parsedCert.NotAfter)44log.Println("Serial Number:", parsedCert.SerialNumber)45log.Println("Signature Algorithm:", parsedCert.SignatureAlgorithm)46log.Println("Public Key Algorithm:", parsedCert.PublicKeyAlgorithm)47}48import (
Automation Testing Tutorials
Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.
LambdaTest Learning Hubs:
- JUnit Tutorial
- TestNG Tutorial
- Webdriver Tutorial
- WebDriverIO Tutorial
- Protractor Tutorial
- Selenium 4 Tutorial
- Jenkins Tutorial
- NUnit Tutorial
- Jest Tutorial
- Playwright Tutorial
- Cypress Tutorial
- PyTest Tutorial
YouTube
You could also refer to video tutorials over LambdaTest YouTube channel to get step by step demonstration from industry experts.
Run K6 automation tests on LambdaTest cloud grid
Perform automation testing on 3000+ real desktop and mobile devices online.
Most used method in
- makeRuntime
- TestParse
- TestGetAltNames
- TestGetIssuer
- TestGetSubject
- TestSignatureAlgorithm
- TestMakePublicKey
- TestMakeCertificate
- New
- NewModuleInstance
- Exports
- parse
- altNames
- issuer
- subject
- parseCertificate
- makeCertificate
- makeSubject
- makeIssuer
- makePublicKey
- first
- iso8601
- makeRdns
- makeRdn
- ipAddresses
- uris
- signatureAlgorithm
- fingerPrint
Try LambdaTest Now !!
Get 100 minutes of automation test minutes FREE!!
Was this article helpful?
