07021 Abstracts Collection -- Symmetric Cryptography

From .. to .., the Dagstuhl Seminar 07021 ``Symmetric Cryptography\u27\u27 automatically was held in the International Conference and Research Center (IBFI), Schloss Dagstuhl. During the seminar, several participants presented their current research, and ongoing work and open problems were discussed. Abstracts of the presentations given during the seminar as well as abstracts of seminar results and ideas are put together in this paper. The first section describes the seminar topics and goals in general. Links to extended abstracts or full papers are provided, if available

An Overview of Parallel Symmetric Cipher of Messages

مقدمة: على الرغم من التطورات الهامة في الاتصالات والتكنولوجيا، فقد أثبتت حماية البيانات نفسها كواحدة من أكبر الاهتمامات. يجب تشفير البيانات من أجل الارتباط بشكل آمن وسريع من خلال نقل البيانات التكنولوجية على شبكة الإنترنت. يمكن تعريف عملية التشفير بانها تحويل النص العادي إلى نص مشفر لا يمكن قراءته أو تغييره بواسطة الأشخاص المؤذيين.            طرق العمل: من أجل الحفاظ على الدرجة المطلوبة من الأمان ، استغرقت كل من عمليات تحليل التشفير وفك التشفير وقتًا طويلاً. ومع ذلك, من أجل تقليل مقدار الوقت المطلوب لإكمال عمليات التشفير وفك التشفير، طبق العديد من الباحثين طريقة التشفير بطريقة موازية. لقد كشف البحث الذي تم إجراؤه حول المشكلة عن العديد من الإجابات المحتملة. استخدم الباحثون التوازي لتحسين إنتاجية خوارزمياتهم، مما سمح لهم بتحقيق مستويات أداء أعلى في خوارزمية التشفير.                             النتائج: أظهرت الأبحاث الحديثة حول تقنيات التشفير المتوازي أن وحدات معالجة الرسومات (GPUs) تعمل بشكل أفضل من الأنظمة الأساسية المتوازية الأخرى عند مقارنة مستويات أداء التشفير.   الاستنتاجات: لإجراء بحث مقارنة حول أهم خوارزميات التشفير المتوازية من حيث فعالية أمن البيانات وطول المفتاح والتكلفة والسرعة، من بين أمور أخرى. تستعرض هذه الورقة العديد من الخوارزميات المتوازية الهامة المستخدمة في تشفير البيانات وفك تشفيرها في جميع التخصصات. ومع ذلك، يجب النظر في معايير أخرى لإظهار مصداقية أي تشفير. تعتبر اختبارات العشوائية مهمة جدًا لاكتشافها وتم تسليط الضوء عليها في هذه الدراسة.                                                              Background: Despite significant developments in communications and technology, data protection has established itself as one of the biggest concerns. The data must be encrypted in order to link securely, quickly through web-based technological data transmission. Transforming plain text into ciphered text that cannot be read or changed by malicious people is the process of encryption. Materials and Methods: In order to maintain the required degree of security, both the cryptanalysis and decryption operations took a significant amount of time. However, in order to cut down on the amount of time required for the encryption and decryption operations to be completed, several researchers implemented the cryptography method in a parallel fashion. The research that has been done on the problem has uncovered several potential answers. Researchers used parallelism to improve the throughput of their algorithms, which allowed them to achieve higher performance levels on the encryption algorithm. Results: Recent research on parallel encryption techniques has shown that graphics processing units (GPUs) perform better than other parallel platforms when comparing their levels of encryption performance. Conclusion: To carry out comparison research on the most significant parallel crypto algorithms in terms of data security efficacy, key length, cost, and speed, among other things. This paper reviews various significant parallel algorithms used for data encryption and decryption in all disciplines. However, other criteria must be considered in order to show the trustworthiness of any encryption. Randomness tests are very important to discover and are highlighted in this study

Threshold Implementations of the Present Cipher

The process of securing data has always been a challenge since it is related to the safety of people and society. Nowadays, there are many cryptographic algorithms developed to solve security problems. However, some applications have constraints which make it difficult to achieve high levels of security. Light weight cryptography aims to address this issue while trying to maintain low costs. Side-channel attacks have changed the way of cryptography significantly. In this kind of attacks, the attacker has physical access to the crypto-system and can extract the sensitive data by monitoring and measuring the side-channels such as power consumption, electromagnetic emanation, timing information, sound, etc. These attacks are based on the relationship between side-channels and secret data. Therefore, there need to be countermeasures to eliminate or reduce side channel leaks or to break the relationship between side-channels and secret data to protect the crypto systems against side-channel attacks. In this work, we explore the practicality of Threshold Implementation (TI) with only two shares for a smaller design that needs less randomness but is still leakage resistant. We demonstrate the first two-share Threshold Implementations of light-weight block cipher Present. Based on implementation results, two-share TI has a lower area overhead and better throughput when compared with a first-order resistant three-share scheme. Leakage analysis of the developed implementations reveals that two-share TI can retain perfect first-order resistance. However, the analysis also exposes a strong second-order leakage

Implementation of cryptographic algorithms and protocols

The purpose of the project is to provide a practical survey of both the principles and practice of cryptography. Cryptography has become an essential tool in transmission of information. Cryptography is the central part of several fields: information security and related issues, particularly, authentication, and access control. Cryptography encompasses a large number of algorithms which are used in building secure applications