Post Quantum Cryptography -- Improved Multimodal Private Signatures from Lattices -- Automatic Quantum Multi collision Distinguishers and Rebound Attacks with Triangulation Algorithm -- Lattice based more general anti leakage model and its application in decentralization -- An Efficient Hardware Implementation of Crystal Dilithium on FPGA -- Pushing the Limit of Vectorized Polynomial Multiplications for NTRU Prime -- Jumping for Berstein Yang Inversion -- DualRing PRF Post Quantum Linkable Ring Signatures from Legendre and Power Residue PRFs -- Faster verifications and smaller signatures Trade offs for Alteq using rejections -- Revisiting the Security of Fiat Shamir Signature Schemes under Superposition Attacks -- Improved Lattice Based Attack on Mersenne Low Hamming Ratio Search Problem -- Cryptanalysis -- New Strategy for Evaluating Differential Clustering Effect of uBlock -- Algebraic Cryptanalysis of the HADES Design Strategy: Application to Poseidon and Poseidon2 -- Revisiting Impossible Differential Cryptanalysis and Expanding the Application of MILP in Impossible Differential Attack -- Secure Protocols -- A Fault Tolerant Content Moderation Mechanism for Secure Messaging System -- Formal Verification of Challenge Flow in EMV 3D Secure -- Size Hiding Computation in the Honest But Curious Model -- Hidden Delta fairness A Novel Notion for Fair Secure Two Party Computation -- ProfistMAC A Protocol Finite State Machine Classifier via Graph Representation -- Subverting Cryptographic Protocols from A Fine Grained Perspective A Case Study on 2 Party ECDSA -- Application Security -- Deep Dive on Relationship between Personality and Password Creation -- Unveiling the Unseen Video Recognition Attacks on Social Software -- An Account Matching Method Based on Hyper Graph.

This volume constitutes the refereed proceedings of the 29th Australasian Conference, ACISP 2024, held in Sydney, NSW, Australia, during July 15-17, 2024. The 70 full papers were carefully reviewed and selected from 232 submission. They are categorized in the following sections: Post-Quantum Cryptography, Cryptanalysis, Secure Protocols, Application Security. .