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(Ruby) Create JWT using Smart CardSee more JSON Web Token (JWT) ExamplesDemonstrates how to create a JWT using an RSA private key and certificate on a smart card. This is for JOSE headers with an "alg" of RS256, RS384, or RS512. When RSA is used, the private key signs (creates) the JWT, and the public key is for verification. This example also demonstrates how to include time constraints:
Note: This example requires Chilkat v9.5.0.99 or later.
require 'chilkat' # Demonstrates how to create a JWT using an RSA private key and certificate on a smart card. # This example requires the Chilkat API to have been previously unlocked. # See Global Unlock Sample for sample code. jwt = Chilkat::CkJwt.new() cert = Chilkat::CkCert.new() success = cert.LoadFromSmartcard("") if (success == false) print cert.lastErrorText() + "\n"; exit end # Build the JOSE header jose = Chilkat::CkJsonObject.new() # Use RS256. Pass the string "RS384" or "RS512" to use RSA with SHA-384 or SHA-512. jose.UpdateString("alg","RS256") jose.UpdateString("typ","JWT") jose.UpdateString("x5c[0]",cert.getEncoded()) # Now build the JWT claims (also known as the payload) claims = Chilkat::CkJsonObject.new() claims.UpdateString("iss","http://example.org") claims.UpdateString("sub","John") claims.UpdateString("aud","http://example.com") # Set the timestamp of when the JWT was created to now. curDateTime = jwt.GenNumericDate(0) claims.UpdateInt("iat",curDateTime) # Set the "not process before" timestamp to now. claims.UpdateInt("nbf",curDateTime) # Set the timestamp defining an expiration time (end time) for the token # to be now + 1 hour (3600 seconds) claims.UpdateInt("exp",curDateTime + 3600) # Produce the smallest possible JWT: jwt.put_AutoCompact(true) # Create the JWT token. This is where the RSA signature is created. token = jwt.createJwtCert(jose.emit(),claims.emit(),cert) print token + "\n"; |
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