Science AI Journal
Computer Science · Research topic

Open research questions in Cryptographic Implementations and Security

119 unresolved questions extracted from the limitations and future-work sections of 262 Cryptographic Implementations and Security papers in our library. Each links back to the study that raised it.

What the literature leaves open

  • The bit-level grouping mode does not match the byte operation architecture of cryptographic chips. The byte-value grouping mode causes unequal sizes of traces contained in two groups, reducing the test efficiency. There is a lack of theoretical guidance for the selection of test positions.

    IHOG: Interval-Optimized Hamming-Weight-Oriented Grouping for Enhanced Side-Channel Leakage Detection · 2026 · DOI

  • Kleptographic attacks on post-quantum cryptosystems (specifically CRYSTALS-Kyber) are demonstrated in principle, but no study examines the detectability, prevalence, or mitigation of such backdoors in cryptographic implementations procured or deployed by Pakistan's government, defense, or financial institutions.

    Leveraging kleptography to strengthen post-quantum cryptography · 2026 · DOI

  • The methodology developed allows for further study of the widespread impact of strategically designed attacks on traffic cybersecurity, inspiring the development of efficient attack detection techniques and advanced vehicle controls.

    Analytical Characterization of Cyberattacks on Adaptive Cruise Control Vehicles · 2024 · DOI

  • The separation of security and clustering leads to a compromise between two crucial concerns. Prior work has focused on either algorithmic cryptographic efficiency or network-level energy optimization, but not both.

    TTEA: designing a quantum-ready and energy-conscious encryption model for secure IoT environments · 2026 · DOI

  • The modular design of TTEA allows flexibility in selecting PQC algorithms, but formal analysis of security implications and performance trade-offs when substituting Kyber with alternative algorithms in specific deployment scenarios is limited.

    TTEA: designing a quantum-ready and energy-conscious encryption model for secure IoT environments · 2026 · DOI

  • To evaluate the proposed methods in real-world scenarios. To improve the security of Ascon by identifying potential vulnerabilities. To propose new methods for statistical fault analysis of other lightweight cryptography standards.

    Statistical fault analysis of Ascon: multiple distinguishers and impossible-state exploitation · 2026 · DOI

  • Existing fault attacks on Ascon often require substantial fault injections. There is a need for new methods that can recover the key of Ascon with a high success rate and fewer fault injections.

    Statistical fault analysis of Ascon: multiple distinguishers and impossible-state exploitation · 2026 · DOI

  • To further analyze the security of the HM-AKA+ protocol. To explore the use of other Post-Quantum primitives in the HM-AKA+ protocol. To investigate the application of the HM-AKA+ protocol in other scenarios.

    HM-AKA+: Protecting against a semi-trusted third party with Hybrid Crypto · 2026 · DOI

  • The HM-AKA scheme fails to provide security against impersonation attacks by a semi-trusted TTP. The need for a protocol that maintains the framework’s flexibility while ensuring security.

    HM-AKA+: Protecting against a semi-trusted third party with Hybrid Crypto · 2026 · DOI

  • Resource constraints of IoT devices, which limit the use of computationally intensive security mechanisms. The need for real-time anomaly detection and prevention in IoT systems. The requirement for transparent and tamper-evident logging mechanisms in IoT systems.

    Enhancement of IoT Security with Hybrid Cryptosystem of ECC and TinyML Integrated with Blockchain · 2026 · DOI

  • Future research should focus on evaluating the proposed framework in real-world scenarios and large-scale IoT deployments. Future research should investigate the use of other machine learning algorithms and cryptographic techniques in the proposed framework. Future research should explore the application of the proposed framework to other domains, such as industrial IoT and healthcare IoT.

    Enhancement of IoT Security with Hybrid Cryptosystem of ECC and TinyML Integrated with Blockchain · 2026 · DOI

  • Future research can focus on improving the accuracy and efficiency of the proposed method. The application of deep learning in cryptanalysis can be extended to other areas, such as side-channel analysis. The security of other block ciphers can be evaluated using the proposed method.

    Improved polytopic differential neural distinguishers for SIMON, SIMECK, and SPECK block ciphers · 2026 · DOI

  • The existing differential neural distinguishers have limitations in terms of accuracy and efficiency. There is a need for novel data generation techniques to improve the performance of neural network-based distinguishers. The security of lightweight block ciphers in IoT devices is a significant concern.

    Improved polytopic differential neural distinguishers for SIMON, SIMECK, and SPECK block ciphers · 2026 · DOI

  • Traditional cryptographic algorithms are not suitable for WoT devices due to limited resources. Lightweight cryptography has emerged as a solution, but there is a need for more efficient and secure schemes.

    Secure and Efficient SIMON LEA Hybrid Encryption Scheme for Web of Things Environments · 2026 · DOI

  • The lack of a rigorous algebraic proof of the injectivity of the core map G. The lack of a proof of Ω(4 MB) unconditionally under the parallel ROM. The need for a standard-model reduction for high-assurance deployments.

    Technical Note: The Four Core Laws of FractalShield — A Framework for Oracle-Free Verification and Geometric Cost Escalation · 2026 · DOI

  • Irregular ShiftRows offsets in Rijndael-256. Limited performance of fixslicing beyond AES-128. Need for cipher-specific and architecture-dependent implementations.

    Constant-Time Bitsliced Rijndael-256 on ARM Cortex-M4: On the Limitations of Fixslicing Beyond AES-128 · 2026 · DOI

  • The implementation is limited to ARM Cortex-M4 microcontrollers. The paper does not provide a comparison with other implementations of Rijndael-256.

    Constant-Time Bitsliced Rijndael-256 on ARM Cortex-M4: On the Limitations of Fixslicing Beyond AES-128 · 2026 · DOI

  • Only sublinear polynomial fraction of edit errors are robustly handled - Requires assumptions beyond standard cryptographic ones for binary alphabet codes - Open problem remains to find a reduction with smaller distortion

    High-Rate Public-Key Pseudorandom Codes for Edit Errors · 2026

  • Find a different reduction from edit robustness to Hamming robustness with substantially smaller distortion - Direct constructions of public-key pseudorandom codes that are robust to edit errors under standard assumptions

    High-Rate Public-Key Pseudorandom Codes for Edit Errors · 2026

  • The implementation of Shor's algorithm is limited to small factoring instances (N = 15, 21). The study uses a simulator only, without hardware results.

    Bridging the Quantum Threat and Post-Quantum Defense: An Empirical Study of Shor’s Algorithm and ML-KEM-768 Performance · 2026 · DOI

  • The gap between the current state of quantum computing and the requirements for factoring RSA-2048 is approximately four orders of magnitude in qubit count alone.

    Bridging the Quantum Threat and Post-Quantum Defense: An Empirical Study of Shor’s Algorithm and ML-KEM-768 Performance · 2026 · DOI

  • To apply the technique to other ciphers with similar structures. To evaluate the security of ciphers against differential MITM attacks. To improve the attack by introducing new techniques.

    Improved differential meet-in-the-middle attack using S-box linearization · 2026 · DOI

  • The previous best known attack on 24-round CRAFT has a limited number of rounds. The differential MITM attack is constrained by the key schedule.

    Improved differential meet-in-the-middle attack using S-box linearization · 2026 · DOI

  • Modern data validation systems face a persistent trade-off between execution speed and structural vulnerability. Merkle-Damgård constructions and sponge-based alternatives have limitations in terms of computational overhead and performance degradation.

    Double Pyramidal Hash 512×512 · 2026 · DOI

  • The search method is limited to the neighbourhood of the PW functions formed by up to four-orbit combinations. The large search spaces limit the ability to perform an exhaustive search for higher number of orbit combinations.

    Cryptographic Properties of Boolean Functions · 2026 · DOI

Most-cited papers in Cryptographic Implementations and Security

Most recent work

Find a gap in your own Cryptographic Implementations and Security sub-topic

This page shows what the Cryptographic Implementations and Security literature already flags as unresolved. To narrow it to your specific question, run the guided finder — it searches the gap library on demand and checks candidates against 250M+ OpenAlex works.

Open the Research Gap Finder →

Related topics in Computer Science

Online Learning and Analytics
1,106 open questions
AI in Service Interactions
861 open questions
Quantum Computing Algorithms and Architecture
645 open questions
Teaching and Learning Programming
623 open questions
Digital literacy in education
617 open questions
Music Technology and Sound Studies
576 open questions
Virtual Reality Applications and Impacts
496 open questions
Topic Modeling
476 open questions
119 open questions have been extracted from the limitations and future-work passages of 262 Cryptographic Implementations and Security papers in our library. Each one below links back to the study that raised it, so you can read the original claim in context.

Tools for your next paper

Gaps & Literature SearchFind open questions in any field — 120,000+ open gaps mined from our own library.Pre-CheckIs your paper ready? A Tier 1–5 acceptance probability in seconds.Journal FinderA ranked shortlist of target journals from a 17,500-venue index.Duplicate Publication CheckerCheck prior-publication & salami-slicing risk across 8 sources.Citation GeneratorFreeA DOI or title → APA, MLA, Vancouver, Chicago, BibTeX, RIS. No signup.Graphical Abstract MakerFreeTurn your findings into a colorblind-safe graphical abstract.

Compare the category — Honest roundups of the AI research tools, ours listed alongside the alternatives.

Command palette

Jump anywhere, run any action.