Advancements in communication and storage technologies need robust encryption tools to protect data. Cryptographic hash functions are crucial in maintaining data integrity and security by turning variable-length inputs into fixed-size digests. RIPEMD-160 is a popular hash algorithm that balances speed and security. However, advances in cryptanalysis have revealed weaknesses, requiring upgrades to bolster its defences against new dangers. Our research offers a new method to boost RIPEMD-160’s security using the Chirikov Standard Map’s chaotic properties, which increase unpredictability. We developed the ChaoticRIPE algorithm, incorporating the Chirikov Standard Map into RIPEMD-160. The experimental analysis demonstrates that ChaoticRIPE exhibits improved resistance to cryptographic attacks, heightened sensitivity to input variations, and a more uniform hash distribution than the original RIPEMD-160. The method maintains efficiency with a minimal computational overhead of approximately 0.05 milliseconds per hash computation. ChaoticRIPE is a potential enhancement for cryptographic hash functions used in modern security applications; National Institute of Standards and Technology (NIST) statistical testing results show the suggested technique’s resilience.