this presentation is on block cipher modes which are used for encryption and decryption to any message.That are Defined by the National Institute of Standards and Technology . Block cipher modes of operation are part of symmetric key encryption algorithm.
i hope you may like this.
The Advanced Encryption Standard, also known by its original name Rijndael, is a specification for the encryption of electronic data established by the U.S.
this presentation is on block cipher modes which are used for encryption and decryption to any message.That are Defined by the National Institute of Standards and Technology . Block cipher modes of operation are part of symmetric key encryption algorithm.
i hope you may like this.
The Advanced Encryption Standard, also known by its original name Rijndael, is a specification for the encryption of electronic data established by the U.S.
Le cryptage RSA est-il intrinsèquement inviolable ? Pour le savoir, nous essayons de comprendre comment il fonctionne et sur quelles mathématiques il s'appuie.
A banner is simply the text that is embedded with a message that is received from a host.
Usually this text includes signatures of applications that issue the message. So, they reveal themselves to us.
For more information about ethical hacking log on to http://www.arizonainfotech.com/
In cryptography, a block cipher is a deterministic algorithm operating on ... Systems as a means to effectively improve security by combining simple operations such as .... Finally, the cipher should be easily cryptanalyzable, such that it can be ...
La cryptologie est un art ancien et une science nouvelle : un art ancien car les
Spartiates l'utilisaient déjà (la scytale) ; une science nouvelle parce que ce n'est
un thème de recherche scientifique académique, c'est-à-dire universitaire, que
depuis les années 1970. Cette discipline est liée à beaucoup d'autres, par
exemple l'arithmétique modulaire, l'algèbre, la théorie de la complexité, la
théorie de l'information, ou encore les codes correcteurs d'erreurs.
Unit 1
Information System Security
(According RTU Syllabus)
1-Introduction to security attacks Services and mechanism
2-Classical encryption techniques
3-Cryptanalysis, stream and block ciphers
4- Modern Block Ciphers: Block ciphers principals
5- Shannon’s theory of confusion and diffusion
6- Fiestal structure
7- Data encryption standard(DES)
8- Differential and linear cryptanalysis of DES
9- Block cipher modes of operations.
10- Triple Data Encryption Standard (Triple-DES)
Different date block size using to evaluate the performance between different...IJCNCJournal
The different computer networks whether wired or wireless are becoming more popular with its high
security aspect. Different security algorithms and technique are using to avoid any aforementioned attacks.
One of these technique is a cryptography technique that makes the data as unreadable during the transfer
hence; there is no chance to reclaim the information. Presently, most of the users are using various media
types and internet to transfer the data but, it has the chance to retrieve the data by using these media types.
The perfect solution for this problem is to provide security on time-to-time basis; this stage is always
significant to the security related community discussions. This paper explains the comparison between the
run time of three different encryption algorithms which are DES, AES and Blowfish The compression
includes using different modes, data block size and different operation modes. As a result, Blowfish
algorithm followed by AES take less time for running compared to DES.
Le cryptage RSA est-il intrinsèquement inviolable ? Pour le savoir, nous essayons de comprendre comment il fonctionne et sur quelles mathématiques il s'appuie.
A banner is simply the text that is embedded with a message that is received from a host.
Usually this text includes signatures of applications that issue the message. So, they reveal themselves to us.
For more information about ethical hacking log on to http://www.arizonainfotech.com/
In cryptography, a block cipher is a deterministic algorithm operating on ... Systems as a means to effectively improve security by combining simple operations such as .... Finally, the cipher should be easily cryptanalyzable, such that it can be ...
La cryptologie est un art ancien et une science nouvelle : un art ancien car les
Spartiates l'utilisaient déjà (la scytale) ; une science nouvelle parce que ce n'est
un thème de recherche scientifique académique, c'est-à-dire universitaire, que
depuis les années 1970. Cette discipline est liée à beaucoup d'autres, par
exemple l'arithmétique modulaire, l'algèbre, la théorie de la complexité, la
théorie de l'information, ou encore les codes correcteurs d'erreurs.
Unit 1
Information System Security
(According RTU Syllabus)
1-Introduction to security attacks Services and mechanism
2-Classical encryption techniques
3-Cryptanalysis, stream and block ciphers
4- Modern Block Ciphers: Block ciphers principals
5- Shannon’s theory of confusion and diffusion
6- Fiestal structure
7- Data encryption standard(DES)
8- Differential and linear cryptanalysis of DES
9- Block cipher modes of operations.
10- Triple Data Encryption Standard (Triple-DES)
Different date block size using to evaluate the performance between different...IJCNCJournal
The different computer networks whether wired or wireless are becoming more popular with its high
security aspect. Different security algorithms and technique are using to avoid any aforementioned attacks.
One of these technique is a cryptography technique that makes the data as unreadable during the transfer
hence; there is no chance to reclaim the information. Presently, most of the users are using various media
types and internet to transfer the data but, it has the chance to retrieve the data by using these media types.
The perfect solution for this problem is to provide security on time-to-time basis; this stage is always
significant to the security related community discussions. This paper explains the comparison between the
run time of three different encryption algorithms which are DES, AES and Blowfish The compression
includes using different modes, data block size and different operation modes. As a result, Blowfish
algorithm followed by AES take less time for running compared to DES.
Describe briefly the OSI Reference model and its relevance to computer security. [4 Marks]
• Ans 1: The Open System Interconnection Model (OSI) is a standardized framework for describing how computers communicate with each other over a network system. The OSI model also conceptualizes how data flows through a stack of seven layers, beginning with the physical layer and continuing through the datalink, network, transport, session, presentation, and finally the application layer (Simoneau, 2006)
That was a training for SCIT Symbiosis students at India before their CTF.
Training link: https://www.youtube.com/watch?v=OYYuagj9ZvA
Training Agenda:
Introduction to cybersecurity
Famous data breaches
How to start in cybersecurity
What is a CTF
CTF types
CTF resources
How to gain money out of hacking
CTF demo “Let’s Play CTF together”
Domain 4: Communication and Network Security - Review
Network Architecture and Design, Fundamentals, OSI Model, TCP/IP Model and Encapsulation (speaking of which)
How To Become A Certified Blockchain Security Professional? 101 Blockchains
Blockchain is regarded as one of the top-tier technologies that can combat cyber-attacks effortlessly. But is the technology really that secured? In reality, blockchain also comes with its fair share of shortcomings. Thus, every company developing or experimenting with blockchain technology is looking for a certified blockchain security professional, who can get rid of all the issues.
But before you can become a certified blockchain security expert, you need to master some specific skills and learn about blockchain security elements thoroughly. Mastering the techniques of cryptography, understanding the network security architecture of different blockchain platforms, gaining a strong knowledge of various programming languages and techniques, etc. are some of the skills you will need.
Thus, to help you in your journey to becoming a certified blockchain security professional, we at 101 Blockchains are offering various enterprise blockchain certification courses with updated and simplified information. Starting with our Certified Blockchain Security Expert (CBSE) course will be the best choice as this course will offer you a certification that you can showcase during your interviews.
Learn more about the course from here -->
https://academy.101blockchains.com/courses/certified-blockchain-security-expert
We also have other certification courses that you can check out --->
Certified Enterprise Blockchain Professional (CEBP) course
https://academy.101blockchains.com/courses/blockchain-expert-certification
Certified Enterprise Blockchain Architect (CEBA) course
https://academy.101blockchains.com/courses/certified-enterprise-blockchain-architect
We also offer additional blockchain courses that can help you enrich your resume and become an expert in no time.
Learn more about these courses from here ->
How to Build Your Career in Enterprise Blockchains Course
https://academy.101blockchains.com/courses/career-in-blockchain
Getting Started with Hyperledger Fabric Course
https://academy.101blockchains.com/courses/getting-started-with-hyperledger-fabric/
Beginner's Guide to Corda Development Course
https://academy.101blockchains.com/courses/beginners-guide-to-corda-development
Ethereum Development Fundamentals Course
https://academy.101blockchains.com/courses/ethereum-development-fundamentals
JMeter webinar - integration with InfluxDB and GrafanaRTTS
Watch this recorded webinar about real-time monitoring of application performance. See how to integrate Apache JMeter, the open-source leader in performance testing, with InfluxDB, the open-source time-series database, and Grafana, the open-source analytics and visualization application.
In this webinar, we will review the benefits of leveraging InfluxDB and Grafana when executing load tests and demonstrate how these tools are used to visualize performance metrics.
Length: 30 minutes
Session Overview
-------------------------------------------
During this webinar, we will cover the following topics while demonstrating the integrations of JMeter, InfluxDB and Grafana:
- What out-of-the-box solutions are available for real-time monitoring JMeter tests?
- What are the benefits of integrating InfluxDB and Grafana into the load testing stack?
- Which features are provided by Grafana?
- Demonstration of InfluxDB and Grafana using a practice web application
To view the webinar recording, go to:
https://www.rttsweb.com/jmeter-integration-webinar
Neuro-symbolic is not enough, we need neuro-*semantic*Frank van Harmelen
Neuro-symbolic (NeSy) AI is on the rise. However, simply machine learning on just any symbolic structure is not sufficient to really harvest the gains of NeSy. These will only be gained when the symbolic structures have an actual semantics. I give an operational definition of semantics as “predictable inference”.
All of this illustrated with link prediction over knowledge graphs, but the argument is general.
Accelerate your Kubernetes clusters with Varnish CachingThijs Feryn
A presentation about the usage and availability of Varnish on Kubernetes. This talk explores the capabilities of Varnish caching and shows how to use the Varnish Helm chart to deploy it to Kubernetes.
This presentation was delivered at K8SUG Singapore. See https://feryn.eu/presentations/accelerate-your-kubernetes-clusters-with-varnish-caching-k8sug-singapore-28-2024 for more details.
GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using Deplo...James Anderson
Effective Application Security in Software Delivery lifecycle using Deployment Firewall and DBOM
The modern software delivery process (or the CI/CD process) includes many tools, distributed teams, open-source code, and cloud platforms. Constant focus on speed to release software to market, along with the traditional slow and manual security checks has caused gaps in continuous security as an important piece in the software supply chain. Today organizations feel more susceptible to external and internal cyber threats due to the vast attack surface in their applications supply chain and the lack of end-to-end governance and risk management.
The software team must secure its software delivery process to avoid vulnerability and security breaches. This needs to be achieved with existing tool chains and without extensive rework of the delivery processes. This talk will present strategies and techniques for providing visibility into the true risk of the existing vulnerabilities, preventing the introduction of security issues in the software, resolving vulnerabilities in production environments quickly, and capturing the deployment bill of materials (DBOM).
Speakers:
Bob Boule
Robert Boule is a technology enthusiast with PASSION for technology and making things work along with a knack for helping others understand how things work. He comes with around 20 years of solution engineering experience in application security, software continuous delivery, and SaaS platforms. He is known for his dynamic presentations in CI/CD and application security integrated in software delivery lifecycle.
Gopinath Rebala
Gopinath Rebala is the CTO of OpsMx, where he has overall responsibility for the machine learning and data processing architectures for Secure Software Delivery. Gopi also has a strong connection with our customers, leading design and architecture for strategic implementations. Gopi is a frequent speaker and well-known leader in continuous delivery and integrating security into software delivery.
Slack (or Teams) Automation for Bonterra Impact Management (fka Social Soluti...Jeffrey Haguewood
Sidekick Solutions uses Bonterra Impact Management (fka Social Solutions Apricot) and automation solutions to integrate data for business workflows.
We believe integration and automation are essential to user experience and the promise of efficient work through technology. Automation is the critical ingredient to realizing that full vision. We develop integration products and services for Bonterra Case Management software to support the deployment of automations for a variety of use cases.
This video focuses on the notifications, alerts, and approval requests using Slack for Bonterra Impact Management. The solutions covered in this webinar can also be deployed for Microsoft Teams.
Interested in deploying notification automations for Bonterra Impact Management? Contact us at sales@sidekicksolutionsllc.com to discuss next steps.
GraphRAG is All You need? LLM & Knowledge GraphGuy Korland
Guy Korland, CEO and Co-founder of FalkorDB, will review two articles on the integration of language models with knowledge graphs.
1. Unifying Large Language Models and Knowledge Graphs: A Roadmap.
https://arxiv.org/abs/2306.08302
2. Microsoft Research's GraphRAG paper and a review paper on various uses of knowledge graphs:
https://www.microsoft.com/en-us/research/blog/graphrag-unlocking-llm-discovery-on-narrative-private-data/
Dev Dives: Train smarter, not harder – active learning and UiPath LLMs for do...UiPathCommunity
💥 Speed, accuracy, and scaling – discover the superpowers of GenAI in action with UiPath Document Understanding and Communications Mining™:
See how to accelerate model training and optimize model performance with active learning
Learn about the latest enhancements to out-of-the-box document processing – with little to no training required
Get an exclusive demo of the new family of UiPath LLMs – GenAI models specialized for processing different types of documents and messages
This is a hands-on session specifically designed for automation developers and AI enthusiasts seeking to enhance their knowledge in leveraging the latest intelligent document processing capabilities offered by UiPath.
Speakers:
👨🏫 Andras Palfi, Senior Product Manager, UiPath
👩🏫 Lenka Dulovicova, Product Program Manager, UiPath
The Art of the Pitch: WordPress Relationships and SalesLaura Byrne
Clients don’t know what they don’t know. What web solutions are right for them? How does WordPress come into the picture? How do you make sure you understand scope and timeline? What do you do if sometime changes?
All these questions and more will be explored as we talk about matching clients’ needs with what your agency offers without pulling teeth or pulling your hair out. Practical tips, and strategies for successful relationship building that leads to closing the deal.
Epistemic Interaction - tuning interfaces to provide information for AI supportAlan Dix
Paper presented at SYNERGY workshop at AVI 2024, Genoa, Italy. 3rd June 2024
https://alandix.com/academic/papers/synergy2024-epistemic/
As machine learning integrates deeper into human-computer interactions, the concept of epistemic interaction emerges, aiming to refine these interactions to enhance system adaptability. This approach encourages minor, intentional adjustments in user behaviour to enrich the data available for system learning. This paper introduces epistemic interaction within the context of human-system communication, illustrating how deliberate interaction design can improve system understanding and adaptation. Through concrete examples, we demonstrate the potential of epistemic interaction to significantly advance human-computer interaction by leveraging intuitive human communication strategies to inform system design and functionality, offering a novel pathway for enriching user-system engagements.
UiPath Test Automation using UiPath Test Suite series, part 4DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 4. In this session, we will cover Test Manager overview along with SAP heatmap.
The UiPath Test Manager overview with SAP heatmap webinar offers a concise yet comprehensive exploration of the role of a Test Manager within SAP environments, coupled with the utilization of heatmaps for effective testing strategies.
Participants will gain insights into the responsibilities, challenges, and best practices associated with test management in SAP projects. Additionally, the webinar delves into the significance of heatmaps as a visual aid for identifying testing priorities, areas of risk, and resource allocation within SAP landscapes. Through this session, attendees can expect to enhance their understanding of test management principles while learning practical approaches to optimize testing processes in SAP environments using heatmap visualization techniques
What will you get from this session?
1. Insights into SAP testing best practices
2. Heatmap utilization for testing
3. Optimization of testing processes
4. Demo
Topics covered:
Execution from the test manager
Orchestrator execution result
Defect reporting
SAP heatmap example with demo
Speaker:
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
Smart TV Buyer Insights Survey 2024 by 91mobiles.pdf91mobiles
91mobiles recently conducted a Smart TV Buyer Insights Survey in which we asked over 3,000 respondents about the TV they own, aspects they look at on a new TV, and their TV buying preferences.
2. Who am I
1. Ashutosh Ahelleya
2. 2nd Year CSE Undergrad @ Amrita University, Amritapuri Campus
3. Member of bi0s CTF Team
4. Focuses on Cryptography in CTFs
2
3. InCTFj
1. Cyber Security Competition
2. Exclusively for School Students below 18 years of age
3. Exciting prizes for the winners of each quarter
4. Know any student interested in Cyber Security?
a. https://junior.inctf.in/
3
4. Aim
1. Introduction to block ciphers
2. Discuss different block cipher modes
3. Describe CBC mode of encryption
4. Vulnerabilities in CBC mode
5. CBC Bit Flipping Attack- in depth with an example
6. Preventive measures against Bit-Flipping Attack
4
5. What is a block cipher?
1. Encrypting/Decrypting one block of data at a time deterministically
rather than each byte of plaintext
2. Symmetric key
3. Semantically much more secure than stream ciphers
4. What happens if the length of data isn’t a multiple of block size?
5. Implementation of block cipher using different modes
5
7. Block-cipher modes of operation
1. Describes how repeatedly to apply a cipher's single-block operation
securely
2. Mostly uses an IV (Initialisation Vector)
a. Unique
b. Secure (randomizes the encryption)
3. A symmetric key for encryption and decryption
7
9. CBC mode of encryption
1. CBC - Cipher Block Chaining
2. The ciphertext of one block of plaintext depends on the plaintext of all the
block processed upto that point. (Block Dependent)
1.Encryption: Ci = Ek(Pi xor Ci-1) for i>=1and C0 = IV
2.Decryption: Pi = Dk(Ci) xor Ci-1 for i>=1 and C0 = IV
9
10. Vulnerabilities in CBC
1. Depends on how it is implemented at the time of encryption
2. Poor semantics in block cipher mode -> more effective and efficient attack
3. AES function has not yet been efficiently attacked by the use of a normal
computer
4. Attacks are mostly discovered due to lack of precaution while
implementing it
Examples: Bit Flipping Attack, Padding Oracle Attack
10
12. An example (Demo)
1. Such attacks have been used to bypass HTTP session tokens to gain
admin access
2. https://cryptopals.com/sets/2/challenges/16
12
13. How it works?
● The plain text block containing “?admin?true?” to be ‘P’.
● The cipher text block next to which we have the plain text block
containing “?admin?true?” to be ‘A’.
● The cipher text block of the corresponding plain text block containing
“?admin?true?” to be ‘B’.
13
14. The XORing
A = P xor BlockCipherDecryption(B)
A[n] = P[n] xor BlockCipherDecryption(B)[n]
BlockCipherDecryption(B[n]) = A[n] xor P[n] ----> Fixed
A[n] = PD xor (A[n] xor PA) (Plaintext value
desired - PD)
or A[n] = A[n] xor (PD xor PA) (Actual plaintext value -
PA)
14
15. Resources on CBC Bit Flipping Attack
1. http://swepssecurity.blogspot.nl/2014/05/bypassing-encrypted-session-
tokens.html
2. https://masterpessimistaa.wordpress.com/2017/05/03/cbc-bit-flipping-
attack/
15
16. How can it be prevented?
1. Do not prepend a random string before generating a cookie using
encryption function (sounds a bit absurd!)
2. Supply a function which verifies if the random string prepended before
encryption is the same after decryption of the cookie -> ensures no bit flip
and effective too!
16
17. Summary
1. Block Cipher
2. Block Cipher modes of operation
3. CBC mode of encryption semantically safer than the trivial ECB mode
4. Bit Flipping Attack
a. Change ciphertext in previous block changes plaintext of next block
b. Change session token to login as admin
5. Prevention against Bit Flipping Attack
17
Editor's Notes
Deterministic Algorithm- given a particular input, will always produce the same output