Function sendEncryptionKeyResponse

src/client/encrypt.js:45–74

()

      }

      function sendEncryptionKeyResponse () {
        const mcData = require('minecraft-data')(client.version)

        const pubKey = mcPubKeyToPem(packet.publicKey)
        const encryptedSharedSecretBuffer = crypto.publicEncrypt({ key: pubKey, padding: crypto.constants.RSA_PKCS1_PADDING }, sharedSecret)
        const encryptedVerifyTokenBuffer = crypto.publicEncrypt({ key: pubKey, padding: crypto.constants.RSA_PKCS1_PADDING }, packet.verifyToken)

        if (mcData.supportFeature('signatureEncryption')) {
          const salt = BigInt(Date.now())
          client.write('encryption_begin', {
            sharedSecret: encryptedSharedSecretBuffer,
            hasVerifyToken: client.profileKeys == null,
            crypto: client.profileKeys
              ? {
                  salt,
                  messageSignature: crypto.sign('sha256WithRSAEncryption',
                    concat('buffer', packet.verifyToken, 'i64', salt), client.profileKeys.private)
                }
              : {
                  verifyToken: encryptedVerifyTokenBuffer
                }
          })
        } else {
          client.write('encryption_begin', {
            sharedSecret: encryptedSharedSecretBuffer,
            verifyToken: encryptedVerifyTokenBuffer
          })
        }
        client.setEncryption(sharedSecret)
      }
    }
  }
}