Encryption Operation Guide

import org.springframework.util.LinkedMultiValueMap;
import org.springframework.web.client.RestTemplate;
import java.nio.charset.StandardCharsets;
import java.util.HashMap;
import java.util.Map;
import org.springframework.http.HttpEntity;
import org.springframework.http.HttpHeaders;
import org.springframework.http.MediaType;
import org.springframework.util.MultiValueMap;
import org.springframework.http.converter.FormHttpMessageConverter;

class EncryptionExample {
    public static void main(String[] args) {
        try {
            // ===================== 1. Prepare business parameters =====================
            Map<String, Object> requestParams = new HashMap<>();
            requestParams.put("tenantUserId", "tenant_001");
            requestParams.put("chainName", "ETH");
            requestParams.put("symbol", "USDT");

            // ===================== 2. JSON serialization =====================
            // Perform serialization using JSON utility class, implementation can refer to sample code in relevant utility classes
            String jsonData = JsonUtils.toJson(requestParams);

            // ===================== 3. RSA public key encryption =====================
            // Use the public key provided by WaaS
            String publicKey = "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQ...";

            // Use RSA utility class for encryption, implementation can refer to sample code in relevant utility classes
            byte[] encryptedData = RSAUtils.encryptByPublicKey(
                jsonData.getBytes(),
                publicKey
            );

            // ===================== 4. Base64 encoding =====================
            // Perform encoding using Base64 utility class, implementation can refer to sample code in relevant utility classes
            String base64Data = Base64Util.encodeByte(encryptedData);

            // ===================== 5. Prepare HTTP request =====================
            // Create HTTP request headers
            HttpHeaders headers = new HttpHeaders();
            headers.add("X-API-KEY", "MERCHANT_123456"); // Merchant credentials
            headers.setContentType(MediaType.APPLICATION_FORM_URLENCODED); // Form format

            // Package request body
            MultiValueMap<String, String> body = new LinkedMultiValueMap<>();
            body.add("data", base64Data); // Parameter name must be "data"

            // ===================== 6. Send API request =====================
            // Create and configure RestTemplate
            RestTemplate restTemplate = new RestTemplate();
            restTemplate.getMessageConverters().add(new FormHttpMessageConverter());

            // Send request and get response
            APIResult response = restTemplate.postForObject(
                "https://waas2-out-api.powersafe-rel.cc/api/v1/api/user/getUserAddress",
                new HttpEntity<>(body, headers),
                APIResult.class
            );

            // Process response, content can refer to response examples
            System.out.println("\nAPI response result:");
            System.out.println(response);

        } catch (Exception e) {
            System.err.println("\nError occurred during processing: " + e.getMessage());
            e.printStackTrace();
        }
    }
}

const RSAUtils = require('./RSAUtils');
const JsonUtils = require('./JsonUtils');
const Base64Util = require('./Base64Util');
const https = require('https');
const querystring = require('querystring');

/**
* Encrypted Request Example
*
* Demonstrates how to prepare request data, encrypt it, and send to WaaS API
*/
class EncryptionExample {
  /**
   * Executes the complete encrypted request process
   * @param {Object} requestParams - Business request data
   * @param {string} publicKey - Base64 encoded public key
   * @param {string} apiKey - API key
   * @param {string} apiHost - API hostname
   * @param {string} apiPath - API path
   * @returns {Promise<string>} Encrypted API response data (Base64 string)
   */
  static async sendEncryptedRequest(requestParams, publicKey, apiKey, apiHost, apiPath) {
      try {
          console.log('Starting encrypted request example...');

          // ===================== 1. JSON Serialization =====================
          const jsonData = JsonUtils.toJson(requestParams);
          console.log('JSON data:', jsonData);

          // ===================== 2. RSA Public Key Encryption =====================
          console.log('Encrypting data with public key...');
          const encryptedData = RSAUtils.encryptByPublicKey(
              Buffer.from(jsonData, 'utf8'),
              publicKey
          );

          // ===================== 3. Base64 Encoding =====================
          const base64Data = Base64Util.encodeByte(encryptedData);
          console.log('Base64 encoding completed');

          // ===================== 4. Send API Request =====================
          console.log('Sending API request...');
          return await this._sendApiRequest(
              base64Data,
              apiKey,
              apiHost,
              apiPath
          );
      } catch (error) {
          throw new Error(`Encrypted request failed: ${error.message}`);
      }
  }

  /**
   * Sends HTTPS request to WaaS API
   * @param {string} base64Data - Base64 encoded encrypted data
   * @param {string} apiKey - API key
   * @param {string} apiHost - API hostname
   * @param {string} apiPath - API path
   * @returns {Promise<string>} Encrypted API response data
   */
  static _sendApiRequest(base64Data, apiKey, apiHost, apiPath) {
      return new Promise((resolve, reject) => {
          const postData = querystring.stringify({ data: base64Data });

          const options = {
              hostname: apiHost,
              port: 443,
              path: apiPath,
              method: 'POST',
              headers: {
                  'X-API-KEY': apiKey,
                  'Content-Type': 'application/x-www-form-urlencoded',
                  'Content-Length': Buffer.byteLength(postData)
              }
          };

          const req = https.request(options, (res) => {
              let responseData = '';

              res.on('data', (chunk) => {
                  responseData += chunk;
              });

              res.on('end', () => {
                  try {
                      if (res.statusCode !== 200) {
                          return reject(new Error(`API request failed, status code: ${res.statusCode}`));
                      }

                      const jsonResponse = JSON.parse(responseData);

                      if (!jsonResponse || typeof jsonResponse !== 'object') {
                          return reject(new Error('Invalid API response format'));
                      }

                      if (!jsonResponse.data) {
                          return reject(new Error('API response missing "data" field'));
                      }

                      resolve(jsonResponse.data);
                  } catch (error) {
                      reject(new Error(`Failed to parse API response: ${error.message}`));
                  }
              });
          });

          req.on('error', (error) => {
              reject(new Error(`Network request failed: ${error.message}`));
          });

          req.write(postData);
          req.end();
      });
  }

  /**
   * Executes the complete example
   */
  static async executeExample() {
      try {
          // Configuration parameters
          const config = {
              PUBLIC_KEY: `YOUR_PUBLIC_KEY`,
              API_KEY: 'YOUR_API_KEY',
              API_HOST: 'waas2-out-api.powersafe-rel.cc',
              API_PATH: '/api/v1/api/user/getUserAddress'
          };

          // Business request data
          const requestParams = {
              tenantUserId: "tenant_001",
              chainName: "TRON",
              symbol: "USDT"
          };

          console.log('Starting WaaS API encrypted request process...');

          // 1. Encrypt and send request
          const encryptedResponse = await this.sendEncryptedRequest(
              requestParams,
              config.PUBLIC_KEY,
              config.API_KEY,
              config.API_HOST,
              config.API_PATH
          );

          console.log('\n✅ Encrypted request successful!');
          console.log('Encrypted response data (Base64):');
          console.log(encryptedResponse);

          return encryptedResponse;
      } catch (error) {
          console.error('\n❌ Encrypted request failed:', error.message);
          throw error;
      }
  }
}

if (require.main === module) {
  (async () => {
      try {
          await EncryptionExample.executeExample();
      } catch (error) {
          console.error('Encrypted request example execution failed:', error.message);
      }
  })();
}

module.exports = EncryptionExample;

import requests
from urllib.parse import urlencode
from JsonUtils import JsonUtils
from RSAUtils import RSAUtils
from Base64Util import Base64Util

def main():
try:
    # ===================== 1. Prepare business parameters =====================
    request_params = {
        "tenantUserId": "tenant_001",
        "chainName": "ETH",
        "symbol": "USDT"
    }

    # ===================== 2. JSON serialization =====================
    json_data = JsonUtils.to_json(request_params)

    # ===================== 3. RSA public key encryption =====================
    public_key = "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQ..."

    # JSON data in Python is a string, needs to be converted to bytes
    json_bytes = json_data.encode('utf-8')

    # Encrypt using RSAUtils
    encrypted_data = RSAUtils.encrypt_by_public_key(
        json_bytes,
        public_key
    )

    # ===================== 4. Base64 encoding =====================
    base64_data = Base64Util.encode_byte(encrypted_data)

    # ===================== 5. Prepare HTTP request =====================
    headers = {
        'X-API-KEY': 'MERCHANT_123456',
        'Content-Type': 'application/x-www-form-urlencoded'
    }

    payload = {'data': base64_data}

    # ===================== 6. Send API request =====================
    response = requests.post(
        'https://waas2-out-api.powersafe-rel.cc/api/v1/api/user/getUserAddress',
        data=urlencode(payload),
        headers=headers
    )

    # ===================== 7. Process response result =====================
    # Ensure API returned valid response
    response.raise_for_status()

    # Parse JSON response (assume returned format is JSON)
    api_result = response.json()

    print('\nAPI response result:')
    print(api_result)

except Exception as e:
    print('\nError occurred during processing:')
    print(str(e))
    import traceback
    traceback.print_exc()

if __name__ == "__main__":
main()