Use this tool to encrypt nodes from the XML of SAML Messages.
To use this tool, paste the original XML, paste the X.509 public certificate of the entity that will receive the SAML Message, set the name of the node that should be encrypted (by default it will try to find and encrypt a saml:Assertion node) and also set the name of the new node that will contain the encrypted data (by default a saml:EncryptedAssertion node is created).
If you want to encrypt a NameID node, set saml:NameID as the source node name and saml:EncryptedID as the destination node.