Trusted Blockchain-Based Signcryption Protocol and Data Management for Authentication and Authorization in VANETs

Algorithm 3

Signcrypt.

Input:, ,

Output: PK_i, SK_i

Function SignCrypted Input(, ) Output(, , , ){

   = Method.hash();

   = Method.sign(, );

   = homomorphicEncryption.Enc();

   = signcrypt( || );

 }

 statu = select();

 if(statu !==0) {

  Get cryptographic KeyPair = new createKeyPair();

  Get cryptographic Method = new cryptographic (CryptoType.SCHNORRTYPE);

   = KeyPair.get ();

   = KeyPair.get ();

   = || || ;

   || || || = function.SignCrypted(, );

  entry.set(", , , , , , ", , , , , , , );

  count = table.insert(, entry);

  if (count ==1) {

   statu_code = true;

  } else {

   statu_code = false;

  }

 } else {

  statu_code = false;}

 return statu_code ;