OCISecurityDeEnvelope

var OCISecurityDeEnvelope: function(

  osshandle: POCISecurity;

  error_handle: POCIError;

  persona: PnzttPersona;

  decryption_state: nzttces;

  input_length: size_t;

  input: Pub1;

  output_message: PnzttBufferBlock;

  verified: Pboolean;

  validated: Pboolean;

  var sender_identity: PnzttIdentity

):sword;