Lua Requires Chilkat v9.5.0.95+

Create JWT Using Ed25519 Private Key (EdDSA)

See more JSON Web Token (JWT) Examples

Demonstrates how to create a JWT using an Ed25519 private key. If the private key is Ed25519, which is an EdDSA algorithm, the JOSE header's "alg" member should be set to "EdDSA". Lua

local chilkat = require("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 Ed25519 private key.

local privKey = chilkat.PrivateKey.new()

-- Load an Ed25519 (EdDSA) private key from a PEM file.
local success = privKey:load_pem_file("qa_data/eddsa/ed25519.pem")
if not success then
    print(privKey.last_error_text)
    return
end

local jwt = chilkat.Jwt.new()

-- Build the JOSE header
local jose = chilkat.JsonObject.new()

success = jose:append_string("alg", "EdDSA")
success = jose:append_string("typ", "JWT")

-- Now build the JWT claims (also known as the payload)
local claims = chilkat.JsonObject.new()
success = claims:append_string("iss", "http://example.org")
success = claims:append_string("sub", "John")
success = claims:append_string("aud", "http://example.com")

-- (optional) Set the timestamp of when the JWT was created to now.
local curDateTime = jwt:gen_numeric_date(0)
success = claims:add_int_at(-1, "iat", curDateTime)

-- (optional)  Set the "not process before" timestamp to now.
success = claims:add_int_at(-1, "nbf", curDateTime)

-- (optional)  Set the timestamp defining an expiration time (end time) for the token
-- to be now + 1 hour (3600 seconds)
success = claims:add_int_at(-1, "exp", curDateTime + 3600)

-- Produce the smallest possible JWT:
jwt.auto_compact = true

-- Create the JWT token.
local token = jwt:create_jwt_pk(jose:emit(), claims:emit(), privKey)

print(token)

-- Example output:
-- eyJhbGciOiJFZERTQSIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJodHRwOi8vZXhhbXBsZS5vcmciLCJzdWIiOiJKb2huIiwiYXVkIjoiaHR0cDovL2V4YW1wbGUuY29tIiwiaWF0IjoxNjg3OTcwNjgyLCJuYmYiOjE2ODc5NzA2ODIsImV4cCI6MTY4Nzk3NDI4Mn0.eyfrDJfuWJSJVJPfAUYb_p_c-LF_YULHGRaZx82MLLjMLCCFEEGckp8icuayf5bLW9ah20LzYYt0JgOBIB0RDg