(Ruby) Create JWT Using Ed25519 Private Key (EdDSA)

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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".

Note: This example requires Chilkat v9.5.0.95 or greater.

Chilkat Ruby Downloads install from rubygems.org gem install chilkat or download... Ruby Library for Windows, MacOS, Linux, Alpine Linux

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.

privKey = Chilkat::CkPrivateKey.new()

# Load an Ed25519 (EdDSA) private key from a PEM file.
success = privKey.LoadPemFile("qa_data/eddsa/ed25519.pem")
if (success != true)
    print privKey.lastErrorText() + "\n";
    exit
end

jwt = Chilkat::CkJwt.new()

# Build the JOSE header
jose = Chilkat::CkJsonObject.new()

# -----------------------------------------------------------------
# Note: This example requires Chilkat v9.5.0.95 or greater.
# -----------------------------------------------------------------
success = jose.AppendString("alg","EdDSA")
success = jose.AppendString("typ","JWT")

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

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

# (optional)  Set the "not process before" timestamp to now.
success = claims.AddIntAt(-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.AddIntAt(-1,"exp",curDateTime + 3600)

# Produce the smallest possible JWT:
jwt.put_AutoCompact(true)

# Create the JWT token.
token = jwt.createJwtPk(jose.emit(),claims.emit(),privKey)

print token + "\n";

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