Decryption Operation Guide

class DecryptionExample {
    class AddressVO {
        private String tenantUserId;
        private String chainName;
        private String address;

        // TODO: Add getter and setter methods
    }
    public static void main(String[] args) {
        try {
            // ===================== 1. Get API response =====================
            // Send API request and get response
            APIResult<String> response = restTemplate.postForObject(
                "https://waas2-out-api.powersafe-rel.cc/api/v1/api/user/getUserAddress",
                httpEntity,
                APIResult.class
            );

            // Extract encrypted data (ensure response format matches API)
            String encryptedData = response.getData();

            // ===================== 2. Base64 decoding =====================
            // Decode using Base64 utility class (implementation reference utility classes)
            byte[] decodedBytes = Base64Util.decodeString(encryptedData);

            // ===================== 3. RSA public key decryption =====================
            // Use the same public key as for requests
            String publicKey = "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQ...";

            // Perform RSA decryption
            byte[] decryptedBytes = RSAUtils.decryptByPublicKey(
                decodedBytes,
                publicKey
            );

            // ===================== 4. Parse business object =====================
            // Convert decrypted JSON data to business object
            AddressVO address = JsonUtils.fromJson(
                new String(decryptedBytes, StandardCharsets.UTF_8),
                AddressVO.class
            );

            // ===================== 5. Use decrypted data =====================
            System.out.println("Parsed address information:");
            System.out.println("Merchant user ID: " + address.getTenantUserId());
            System.out.println("Chain name: " + address.getChainName());
            System.out.println("Wallet address: " + address.getAddress());

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

async function main() {
try {
    // ===================== 1. Simulate getting API response =====================
    // Assume request was sent and response received
    const response = await axios.post(
        'https://waas2-out-api.powersafe-rel.cc/api/v1/api/user/getUserAddress',
        { /* Request body */ },
        { headers: { 'X-API-KEY': 'MERCHANT_123456' } }
    );

    // Get encrypted data (assume response structure is { data: "encrypted data", ... })
    const encryptedData = response.data.data;

    // ===================== 2. Base64 decoding =====================
    const decodedBytes = Base64Util.decodeString(encryptedData);

    // ===================== 3. RSA public key decryption =====================
    const publicKey = "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQ...";

    // Decrypt data
    const decryptedBytes = await RSAUtils.decryptByPublicKey(
        decodedBytes.buffer,
        publicKey
    );

    // Convert to string
    const decryptedText = new TextDecoder().decode(decryptedBytes);

    // ===================== 4. Parse business object =====================
    // Deserialize to AddressVO instance using JsonUtils
    const address = JsonUtils.fromJson(decryptedText, AddressVO);

    // ===================== 5. Use decrypted data =====================
    console.log("Parsed address information:");
    console.log("Merchant user ID: " + address.getTenantUserId());
    console.log("Chain name: " + address.getChainName());
    console.log("Wallet address: " + address.getAddress());

} catch (error) {
    console.error("\nError occurred during decryption: " + error.message);
    console.error(error.stack);
}
}

// Execute main function
main();

import requests
from JsonUtils import JsonUtils
from RSAUtils import RSAUtils
from Base64Util import Base64Util

def main():
try:
    # ===================== 1. Simulate getting API response =====================
    # Assume request was sent and response received
    response = requests.post(
        'https://waas2-out-api.powersafe-rel.cc/api/v1/api/user/getUserAddress',
        data={},
        headers={'X-API-KEY': 'MERCHANT_123456'}
    )

    # Parse JSON response and get encrypted data
    response_data = response.json()
    encrypted_data = response_data['data']

    # ===================== 2. Base64 decoding =====================
    decoded_bytes = Base64Util.decode_string(encrypted_data)

    # ===================== 3. RSA public key decryption =====================
    public_key = "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQ..."
    decrypted_bytes = RSAUtils.decrypt_by_public_key(
        decoded_bytes,
        public_key
    )

    # Convert to string
    decrypted_text = decrypted_bytes.decode('utf-8')

    # ===================== 4. Parse business object =====================
    # Deserialize to AddressVO instance using JsonUtils
    address_data = JsonUtils.from_json(decrypted_text)
    address = AddressVO(address_data)

    # ===================== 5. Use decrypted data =====================
    print("\nParsed address information:")
    print("Merchant user ID:", address.get_tenant_user_id())
    print("Chain name:", address.get_chain_name())
    print("Wallet address:", address.get_address())

except Exception as e:
    print("\nError occurred during decryption:", str(e))
    import traceback
    traceback.print_exc()

if __name__ == "__main__":
main();