(Lianja) 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.

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// 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.

loPrivKey = createobject("CkPrivateKey")

// Load an Ed25519 (EdDSA) private key from a PEM file.
llSuccess = loPrivKey.LoadPemFile("qa_data/eddsa/ed25519.pem")
if (llSuccess <> .T.) then
    ? loPrivKey.LastErrorText
    release loPrivKey
    return
endif

loJwt = createobject("CkJwt")

// Build the JOSE header
loJose = createobject("CkJsonObject")

// -----------------------------------------------------------------
// Note: This example requires Chilkat v9.5.0.95 or greater.
// -----------------------------------------------------------------
llSuccess = loJose.AppendString("alg","EdDSA")
llSuccess = loJose.AppendString("typ","JWT")

// Now build the JWT claims (also known as the payload)
loClaims = createobject("CkJsonObject")
llSuccess = loClaims.AppendString("iss","http://example.org")
llSuccess = loClaims.AppendString("sub","John")
llSuccess = loClaims.AppendString("aud","http://example.com")

// (optional) Set the timestamp of when the JWT was created to now.
lnCurDateTime = loJwt.GenNumericDate(0)
llSuccess = loClaims.AddIntAt(-1,"iat",lnCurDateTime)

// (optional)  Set the "not process before" timestamp to now.
llSuccess = loClaims.AddIntAt(-1,"nbf",lnCurDateTime)

// (optional)  Set the timestamp defining an expiration time (end time) for the token
// to be now + 1 hour (3600 seconds)
llSuccess = loClaims.AddIntAt(-1,"exp",lnCurDateTime + 3600)

// Produce the smallest possible JWT:
loJwt.AutoCompact = .T.

// Create the JWT token.
lcToken = loJwt.CreateJwtPk(loJose.Emit(),loClaims.Emit(),loPrivKey)

? lcToken

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


release loPrivKey
release loJwt
release loJose
release loClaims