(Perl) Create JWT using a Certificate's Private Key

See more JSON Web Token (JWT) Examples

Demonstrates how to create a JWT using a certificate's private key.

Chilkat Perl Downloads Perl Module for Windows, MacOS, Linux, Alpine Linux, Solaris

use chilkat();

# This example requires the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.

# Demonstrates how to create a JWT using an certificate's private key.

$cert = chilkat::CkCert->new();

# Load an ECC private key from a PEM file.
$success = $cert->LoadPfxFile("c:/temp/myPfx.pfx","pfxPassword");
if ($success != 1) {
    print $cert->lastErrorText() . "\r\n";
    exit;
}

$jwt = chilkat::CkJwt->new();

# Build the JOSE header
$jose = chilkat::CkJsonObject->new();
# Note: The IsEcdsa function was added in Chilkat v10.1.0
if ($cert->IsEcdsa() == 1) {
    # Use ES256.  Pass the string "ES384" or "ES512" to use ECC with SHA-384 or SHA-512.
    $jose->AppendString("alg","ES256");
}
else {
    # Probably RSA...
    # Use RS256.  Pass the string "RS384" or "RS512" to use RSA with SHA-384 or SHA-512.
    $jose->AppendString("alg","RS256");
}

$jose->AppendString("typ","JWT");

# Now build the JWT claims (also known as the payload)
$claims = chilkat::CkJsonObject->new();
$claims->AppendString("iss","http://example.org");
$claims->AppendString("sub","John");
$claims->AppendString("aud","http://example.com");

# Set the timestamp of when the JWT was created to now.
$curDateTime = $jwt->GenNumericDate(0);
$claims->AddIntAt(-1,"iat",$curDateTime);

# Set the "not process before" timestamp to now.
$claims->AddIntAt(-1,"nbf",$curDateTime);

# Set the timestamp defining an expiration time (end time) for the token
# to be now + 1 hour (3600 seconds)
$claims->AddIntAt(-1,"exp",$curDateTime + 3600);

# Produce the smallest possible JWT:
$jwt->put_AutoCompact(1);

# Create the JWT token.
$token = $jwt->createJwtCert($jose->emit(),$claims->emit(),$cert);

print $token . "\r\n";

# Example output:
# eyJhbGciOiJFUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJodHRwOi8vZXhhbXBsZS5vcmciLCJzdWIiOiJKb2huIiwiYXVkIjoiaHR0cDovL2V4YW1wbGUuY29tIiwiaWF0IjoxNDg1NzA4NzkyLCJuYmYiOjE0ODU3MDg3OTIsImV4cCI6MTQ4NTcxMjM5Mn0.wqsuyJpxJ073ox-lOiLFqG1lQocXe4hGf2XGZJRrO3qn0UusxI_bu3Gzky8gBsH4sA4u9TWZn5M-1wYMMIJk6Q