Encrypt a JWE with a Symmetric Wrapping Key

See more JSON Web Encryption (JWE) Examples

Demonstrates Jwe.SetWrappingKey, which sets the symmetric key-wrapping key for a recipient. The key bytes are supplied in a named encoding such as hex or base64.

require 'chilkat'

success = false

jwe = Chilkat::CkJwe.new()

#  Protected header: AES key-wrap with AES-256-GCM content encryption.
header = Chilkat::CkJsonObject.new()
header.UpdateString("alg","A256KW")
header.UpdateString("enc","A256GCM")
success = jwe.SetProtectedHeader(header)
if (success == false)
    print jwe.lastErrorText() + "\n";
    exit
end

#  Set the symmetric key-wrapping key for recipient 0.  The key bytes are provided in the named
#  encoding (here base64).  In production, obtain the key from a secure source rather than hard-coding
#  it.
base64Key = "YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXowMTIzNDU="
success = jwe.SetWrappingKey(0,base64Key,"base64")
if (success == false)
    print jwe.lastErrorText() + "\n";
    exit
end

jweCompact = jwe.encrypt("This is the secret content.","utf-8")
if (jwe.get_LastMethodSuccess() == false)
    print jwe.lastErrorText() + "\n";
    exit
end

print jweCompact + "\n";