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TRON’s signature algorithm is ECDSA, and the selected curve is SECP256K1.

From version 0.1.3, trident-java has implemented a wrapper class for SECP256K1.KeyPair in Core to facilitate the generation of private keys and the conversion of private keys to addresses. This classpath is: org.tron.trident.core.key.KeyPair;

  • Generate KeyPair
KeyPair keyPair = KeyPair.generate();
  • Import KeyPair with private key
KeyPair keyPair = new KeyPair("your private key");
  • Print Private & Public key
keyPair.toPrivateKey(); //String private key

keyPair.toPublicKey(); //String public key



The public key does not equal to address.

  • Print Base58Check & Hex address

  • Use a specific public key to convert to byte[], Base58Check or Hex address
//the parent function, returns byte[]
KeyPair.publicKeyToAddress(SECP256K1.PublicKey pubKey); 
KeyPair.publicKeyToBase58CheckAddress(SECP256K1.PublicKey pubKey);
KeyPair.publicKeyToHexAddress(SECP256K1.PublicKey pubKey);
  • Sign
//this function returns the signature message in byte[]
KeyPair.signTransaction(byte[] txid, KeyPair keyPair);

Updated 2 months ago


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