(PowerShell) 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".

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

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Add-Type -Path "C:\chilkat\ChilkatDotNet47-9.5.0-x64\ChilkatDotNet47.dll"

# 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 = New-Object Chilkat.PrivateKey

# Load an Ed25519 (EdDSA) private key from a PEM file.
$success = $privKey.LoadPemFile("qa_data/eddsa/ed25519.pem")
if ($success -ne $true) {
    $($privKey.LastErrorText)
    exit
}

$jwt = New-Object Chilkat.Jwt

# Build the JOSE header
$jose = New-Object Chilkat.JsonObject

# -----------------------------------------------------------------
# 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 = New-Object Chilkat.JsonObject
$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.AutoCompact = $true

# Create the JWT token.
$token = $jwt.CreateJwtPk($jose.Emit(),$claims.Emit(),$privKey)

$($token)

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