Modified Key Derivation Function for Enhanced Security of Speck in Resource-Constrained Internet of Things

Randomness is an imperative component in every cryptographic algorithm to guarantee secret keys are unpredictable and secured against all forms of attacks. Speck generated sequence non-random, a clear sign that it falls beyond the acceptable success rate when tested statistical analysis. Thus, this study resolves non-randomness by integrating novel key derivation function uses elementary operators designed for lightweight application. This design aims not compromise performance implemented on software hardware. As result, modified successfully passed NIST SP 800 - 22 Dieharder v3.31.0 Statistical Test Analysis as no p-value flagged failed during testing. Hence, making cryptographically secured. Nevertheless, 1.06% decrease figure merit still makes worthier resource-constrained Internet Things application contrasted because proven be