Worked on the openssl/openssl repository to address a critical memory management issue in ASN.1 handling, focusing on improving encapsulation and stability across multiple crypto subsystems. Refactored code to replace direct struct member access with public accessor functions such as ASN1_STRING_get0_data() and ASN1_STRING_length(), enhancing memory safety and maintainability. Updated SCT_LIST handling by transitioning from stack to heap allocation for ASN1_OCTET_STRING, ensuring proper resource management. All changes were implemented in C with a strong emphasis on cryptography and memory management best practices, and were reviewed across subsystems to maintain functionality and consistency throughout the codebase.