We have added API for decrypting card details in the onboarding app itself, using the given documented sample.
Topic summary
Developers are seeking a Java implementation for decrypting encrypted_message in Shopify’s credit card payment apps. The discussion references Shopify’s official documentation on building credit card apps, which provides sample code for decrypting credit card information.
Key Issues:
- Multiple users report difficulties implementing the HKDF (HMAC-based Key Derivation Function) to obtain the cipher key needed for decryption
- The official documentation appears to lack Java-specific examples
Partial Solution:
One participant (ravinder84) mentions adding a decryption API directly within their onboarding app using the documented sample as reference, though specific implementation details weren’t shared.
Status: The thread remains open with ongoing requests for clarification about which specific API or approach successfully resolved the decryption challenge. No complete Java code solution has been publicly shared.