Smart Contract-Based Cross-Domain Authentication and Key Agreement System for Heterogeneous Wireless Networks

Table 4

Register to the smart contract.

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Algorithm 2 register

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function AP_Register (id, pk)

% AP node invokes the function to register to CA.

 If(AP_node[id] = NULL) % id has not been registered.

  AP_node[id] = sender.addr; len ++;

  ap[id] = = { id, pk, NUL, NUL, NUL};

function CA_Confirm(id, t_begin, t_end, sig)

% CA invokes the function to confirm the registration of AP by writing the t_begin, t_end and signature sig to the contract.

 if(sender.pk = = owner) % Guarantee only CA can invoke the function.

 ap[id]. T_begin = t_begin;

 ap[id]. T_end = t_end;

 ap[id].sig = sig;

function user_Register (hash)

% CA invokes the function to write the hash of user public key to the contract.

 if(sender.addr = = owner) % Guarantee only CA can invoke the function.

  User[hash] = true;

function getAP(id)

% invoked to obtain the public key of an AP.

 return ap[id];

function user_Verificate (hash)

% Invoked by someone to check a certain hash is registered or not.

 if(user[hash])

  return true;

 else return false;

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