61 lines
1.4 KiB
Go
61 lines
1.4 KiB
Go
package fasthttp
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import (
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"crypto/rand"
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"crypto/rsa"
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"crypto/x509"
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"crypto/x509/pkix"
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"encoding/pem"
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"math/big"
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"time"
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)
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// GenerateTestCertificate generates a test certificate and private key based on the given host.
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func GenerateTestCertificate(host string) ([]byte, []byte, error) {
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priv, err := rsa.GenerateKey(rand.Reader, 2048)
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if err != nil {
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return nil, nil, err
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}
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serialNumberLimit := new(big.Int).Lsh(big.NewInt(1), 128)
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serialNumber, err := rand.Int(rand.Reader, serialNumberLimit)
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if err != nil {
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return nil, nil, err
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}
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cert := &x509.Certificate{
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SerialNumber: serialNumber,
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Subject: pkix.Name{
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Organization: []string{"fasthttp test"},
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},
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NotBefore: time.Now(),
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NotAfter: time.Now().Add(365 * 24 * time.Hour),
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KeyUsage: x509.KeyUsageCertSign | x509.KeyUsageDigitalSignature,
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ExtKeyUsage: []x509.ExtKeyUsage{x509.ExtKeyUsageServerAuth, x509.ExtKeyUsageClientAuth},
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SignatureAlgorithm: x509.SHA256WithRSA,
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DNSNames: []string{host},
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BasicConstraintsValid: true,
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IsCA: true,
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}
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certBytes, err := x509.CreateCertificate(
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rand.Reader, cert, cert, &priv.PublicKey, priv,
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)
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p := pem.EncodeToMemory(
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&pem.Block{
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Type: "PRIVATE KEY",
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Bytes: x509.MarshalPKCS1PrivateKey(priv),
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},
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)
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b := pem.EncodeToMemory(
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&pem.Block{
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Type: "CERTIFICATE",
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Bytes: certBytes,
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},
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)
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return b, p, err
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}
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