In this presentation, ITACCESS, Inc. will introduce its one-stop security certification service for compliance with the EU Cyber Resilience Act (CRA). In particular, the presentation will explain the security legislation represented by the RED-DA to strengthen security requirements for wireless devices and its relevance to the security standards IEC 62443, EN 303 645, and EN 18031 series to which these acts refer. The presentation will also cover IEC 62443 4-1 Gap Analysis for establishing the Security Development Life Cycle (SDL) necessary to comply with these security standards, the verification tools SecDevice and SecSAM, RED-DA device verification and certification support services, and wolfSSL, which provides the security modules necessary to meet functional requirements. We will also introduce wolfSSL, which provides the necessary security modules for functional requirements.