Cryptography is a technique used today hiding any confidential information from the attack of an intruder. Today data communication mainly depends upon digital data communication, where prior requirement is data security, so that data should reach to the intended user. The protection of multimedia data, sensitive information like credit cards, banking transactions and social security numbers is becoming very important. The protection of these confidential data from unauthorized access can be done with many encryption techniques. So for providing data security many cryptography techniques are employed, such as symmetric and asymmetric techniques. In this review paper different asymmetric cryptography techniques, such as RSA (Rivest Shamir and Adleman), Diffie-Hellman, DSA (Digital Signature Algorithm), ECC (Elliptic curve cryptography) are analyzed. Also in this paper, a survey on existing work which uses different techniques for image encryption is done and a general introduction about cryptography is also given. This study extends the performance parameters used in encryption processes and analyzing on their security issues.
Cryptography is a technique used today hiding any confidential information from the attack of an intruder. Today data communication mainly depends upon digital data communication, where prior requirement is data security, so that data should reach to the intended user. The protection of multimedia data, sensitive information like credit cards, banking transactions and social security numbers is becoming very important. The protection of these confidential data from unauthorized access can be done with many encryption techniques. So for providing data security many cryptography techniques are employed, such as symmetric and asymmetric techniques. In this review paper different asymmetric cryptography techniques, such as RSA (Rivest Shamir and Adleman), Diffie-Hellman, DSA (Digital Signature Algorithm), ECC (Elliptic curve cryptography) are analyzed. Also in this paper, a survey on existing work which uses different techniques for image encryption is done and a general introduction about cryptography is also given. This study extends the performance parameters used in encryption processes and analyzing on their security issues.
Bt0088 cryptography and network securitysmumbahelp
Dear students get fully solved assignments
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Fundamentals of digital security. Some info I made throughout the years as a refresher for digital security. Basic primer for beginners. If you are an expert, comments and feedbacks welcome.
Introduction to Cryptography and the Public Key InfrastructureMike Gates
A white paper introducing the basics of cryptography and the Public Key Infrastructure (PKI). Those just getting into the arena of cybersecurity or those just simply curious about the topic will likely learn something new.
Our wish here is to present some functional components, which are essential to the implementation of cryptographic protocols, such as those underlying the BlockChain.
BeeBryte - Energy Intelligence & Automation
www.beebryte.com
its all about cryptography introduction ......
not at advanced level but you can know basics of what actually cryptography is ...eliminating history and going to the point
Bt0088 cryptography and network securitysmumbahelp
Dear students get fully solved assignments
Send your semester & Specialization name to our mail id :
“ help.mbaassignments@gmail.com ”
or
Call us at : 08263069601
Fundamentals of digital security. Some info I made throughout the years as a refresher for digital security. Basic primer for beginners. If you are an expert, comments and feedbacks welcome.
Introduction to Cryptography and the Public Key InfrastructureMike Gates
A white paper introducing the basics of cryptography and the Public Key Infrastructure (PKI). Those just getting into the arena of cybersecurity or those just simply curious about the topic will likely learn something new.
Our wish here is to present some functional components, which are essential to the implementation of cryptographic protocols, such as those underlying the BlockChain.
BeeBryte - Energy Intelligence & Automation
www.beebryte.com
its all about cryptography introduction ......
not at advanced level but you can know basics of what actually cryptography is ...eliminating history and going to the point
Presented at Seminar at Bahria University June 2007
Cryptography Simplified - Symmetric Key, Public Key, PKI, Digital Signature, Certification Authority, Secure Socket Layer (SSL), Secure Electronic Transaction (SET)
A digital code that can be attached to an electronically transmitted message that uniquely identifies the sender. Like a written signature, the purpose of a digital signature is to guarantee that the individual sending the message really is who he or she claims to be. Digital signatures are especially important for electronic commerce and are a key component of most authentication schemes. To be effective, digital signatures must be unforgettable. There are a number of different encryption techniques to guarantee this level of security.
Security everywhere digital signature and digital fingerprint v1 (personal)Paul Yang
This is the slide I used to train people about the security concepts, such as digital signature and digital fingerprint.
I tried to use friendly way to explain the topic with animation and many example in real life.
Hope it helps for you.
Signyourd digital signature certificate providerKishankant Yadav
a digital code (generated and authenticated by public key encryption) which is attached to an electronically transmitted document to verify its contents and the sender's identity.
This definition explains how digital signatures work and what they are used for. Learn about the mathematical underpinnings of digital signature technology
A digital signature is basically a way to ensure that an electronic document (e-mail, spreadsheet, text file, etc.) is authentic. Authentic means that you know who created the document and you know that it has not been altered in any way since that person created it.
https://signyourdoc.com/
Digital signature online - What is digital signatureKishankant Yadav
Digital signatures are the most advanced and secure type of electronic signature. You can use them to comply with the most demanding legal and regulatory requirements because they provide the highest levels of assurance about each signer's identity and the authenticity of the documents they sign.
Digital signatures use a certificate-based digital ID issued by an accredited Certificate Authority (CA) or Trust Service Provider (TSP) so when you digitally sign a document, your identity is uniquely linked to you, the signature is bound to the document with encryption, and everything can be verified using underlying technology known as Public Key Infrastructure (PKI).
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Class 2 Digital signature
https://signyourdoc.com/class-2-digital-signature/
Class 3 Digital signature
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Multiple Your Crypto Portfolio with the Innovative Features of Advanced Crypt...Hivelance Technology
Cryptocurrency trading bots are computer programs designed to automate buying, selling, and managing cryptocurrency transactions. These bots utilize advanced algorithms and machine learning techniques to analyze market data, identify trading opportunities, and execute trades on behalf of their users. By automating the decision-making process, crypto trading bots can react to market changes faster than human traders
Hivelance, a leading provider of cryptocurrency trading bot development services, stands out as the premier choice for crypto traders and developers. Hivelance boasts a team of seasoned cryptocurrency experts and software engineers who deeply understand the crypto market and the latest trends in automated trading, Hivelance leverages the latest technologies and tools in the industry, including advanced AI and machine learning algorithms, to create highly efficient and adaptable crypto trading bots
Paketo Buildpacks : la meilleure façon de construire des images OCI? DevopsDa...Anthony Dahanne
Les Buildpacks existent depuis plus de 10 ans ! D’abord, ils étaient utilisés pour détecter et construire une application avant de la déployer sur certains PaaS. Ensuite, nous avons pu créer des images Docker (OCI) avec leur dernière génération, les Cloud Native Buildpacks (CNCF en incubation). Sont-ils une bonne alternative au Dockerfile ? Que sont les buildpacks Paketo ? Quelles communautés les soutiennent et comment ?
Venez le découvrir lors de cette session ignite
Accelerate Enterprise Software Engineering with PlatformlessWSO2
Key takeaways:
Challenges of building platforms and the benefits of platformless.
Key principles of platformless, including API-first, cloud-native middleware, platform engineering, and developer experience.
How Choreo enables the platformless experience.
How key concepts like application architecture, domain-driven design, zero trust, and cell-based architecture are inherently a part of Choreo.
Demo of an end-to-end app built and deployed on Choreo.
Check out the webinar slides to learn more about how XfilesPro transforms Salesforce document management by leveraging its world-class applications. For more details, please connect with sales@xfilespro.com
If you want to watch the on-demand webinar, please click here: https://www.xfilespro.com/webinars/salesforce-document-management-2-0-smarter-faster-better/
How to Position Your Globus Data Portal for Success Ten Good PracticesGlobus
Science gateways allow science and engineering communities to access shared data, software, computing services, and instruments. Science gateways have gained a lot of traction in the last twenty years, as evidenced by projects such as the Science Gateways Community Institute (SGCI) and the Center of Excellence on Science Gateways (SGX3) in the US, The Australian Research Data Commons (ARDC) and its platforms in Australia, and the projects around Virtual Research Environments in Europe. A few mature frameworks have evolved with their different strengths and foci and have been taken up by a larger community such as the Globus Data Portal, Hubzero, Tapis, and Galaxy. However, even when gateways are built on successful frameworks, they continue to face the challenges of ongoing maintenance costs and how to meet the ever-expanding needs of the community they serve with enhanced features. It is not uncommon that gateways with compelling use cases are nonetheless unable to get past the prototype phase and become a full production service, or if they do, they don't survive more than a couple of years. While there is no guaranteed pathway to success, it seems likely that for any gateway there is a need for a strong community and/or solid funding streams to create and sustain its success. With over twenty years of examples to draw from, this presentation goes into detail for ten factors common to successful and enduring gateways that effectively serve as best practices for any new or developing gateway.
Experience our free, in-depth three-part Tendenci Platform Corporate Membership Management workshop series! In Session 1 on May 14th, 2024, we began with an Introduction and Setup, mastering the configuration of your Corporate Membership Module settings to establish membership types, applications, and more. Then, on May 16th, 2024, in Session 2, we focused on binding individual members to a Corporate Membership and Corporate Reps, teaching you how to add individual members and assign Corporate Representatives to manage dues, renewals, and associated members. Finally, on May 28th, 2024, in Session 3, we covered questions and concerns, addressing any queries or issues you may have.
For more Tendenci AMS events, check out www.tendenci.com/events
Listen to the keynote address and hear about the latest developments from Rachana Ananthakrishnan and Ian Foster who review the updates to the Globus Platform and Service, and the relevance of Globus to the scientific community as an automation platform to accelerate scientific discovery.
Your Digital Assistant.
Making complex approach simple. Straightforward process saves time. No more waiting to connect with people that matter to you. Safety first is not a cliché - Securely protect information in cloud storage to prevent any third party from accessing data.
Would you rather make your visitors feel burdened by making them wait? Or choose VizMan for a stress-free experience? VizMan is an automated visitor management system that works for any industries not limited to factories, societies, government institutes, and warehouses. A new age contactless way of logging information of visitors, employees, packages, and vehicles. VizMan is a digital logbook so it deters unnecessary use of paper or space since there is no requirement of bundles of registers that is left to collect dust in a corner of a room. Visitor’s essential details, helps in scheduling meetings for visitors and employees, and assists in supervising the attendance of the employees. With VizMan, visitors don’t need to wait for hours in long queues. VizMan handles visitors with the value they deserve because we know time is important to you.
Feasible Features
One Subscription, Four Modules – Admin, Employee, Receptionist, and Gatekeeper ensures confidentiality and prevents data from being manipulated
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One app for all industries – a Visitor Management System that works for any organisation.
Stress-free Sign-up
Visitor is registered and checked-in by the Receptionist
Host gets a notification, where they opt to Approve the meeting
Host notifies the Receptionist of the end of the meeting
Visitor is checked-out by the Receptionist
Host enters notes and remarks of the meeting
Customizable Components
Scheduling Meetings – Host can invite visitors for meetings and also approve, reject and reschedule meetings
Single/Bulk invites – Invitations can be sent individually to a visitor or collectively to many visitors
VIP Visitors – Additional security of data for VIP visitors to avoid misuse of information
Courier Management – Keeps a check on deliveries like commodities being delivered in and out of establishments
Alerts & Notifications – Get notified on SMS, email, and application
Parking Management – Manage availability of parking space
Individual log-in – Every user has their own log-in id
Visitor/Meeting Analytics – Evaluate notes and remarks of the meeting stored in the system
Visitor Management System is a secure and user friendly database manager that records, filters, tracks the visitors to your organization.
"Secure Your Premises with VizMan (VMS) – Get It Now"
First Steps with Globus Compute Multi-User EndpointsGlobus
In this presentation we will share our experiences around getting started with the Globus Compute multi-user endpoint. Working with the Pharmacology group at the University of Auckland, we have previously written an application using Globus Compute that can offload computationally expensive steps in the researcher's workflows, which they wish to manage from their familiar Windows environments, onto the NeSI (New Zealand eScience Infrastructure) cluster. Some of the challenges we have encountered were that each researcher had to set up and manage their own single-user globus compute endpoint and that the workloads had varying resource requirements (CPUs, memory and wall time) between different runs. We hope that the multi-user endpoint will help to address these challenges and share an update on our progress here.
Cyaniclab : Software Development Agency Portfolio.pdfCyanic lab
CyanicLab, an offshore custom software development company based in Sweden,India, Finland, is your go-to partner for startup development and innovative web design solutions. Our expert team specializes in crafting cutting-edge software tailored to meet the unique needs of startups and established enterprises alike. From conceptualization to execution, we offer comprehensive services including web and mobile app development, UI/UX design, and ongoing software maintenance. Ready to elevate your business? Contact CyanicLab today and let us propel your vision to success with our top-notch IT solutions.
How Recreation Management Software Can Streamline Your Operations.pptxwottaspaceseo
Recreation management software streamlines operations by automating key tasks such as scheduling, registration, and payment processing, reducing manual workload and errors. It provides centralized management of facilities, classes, and events, ensuring efficient resource allocation and facility usage. The software offers user-friendly online portals for easy access to bookings and program information, enhancing customer experience. Real-time reporting and data analytics deliver insights into attendance and preferences, aiding in strategic decision-making. Additionally, effective communication tools keep participants and staff informed with timely updates. Overall, recreation management software enhances efficiency, improves service delivery, and boosts customer satisfaction.
Designing for Privacy in Amazon Web ServicesKrzysztofKkol1
Data privacy is one of the most critical issues that businesses face. This presentation shares insights on the principles and best practices for ensuring the resilience and security of your workload.
Drawing on a real-life project from the HR industry, the various challenges will be demonstrated: data protection, self-healing, business continuity, security, and transparency of data processing. This systematized approach allowed to create a secure AWS cloud infrastructure that not only met strict compliance rules but also exceeded the client's expectations.
Enhancing Research Orchestration Capabilities at ORNL.pdfGlobus
Cross-facility research orchestration comes with ever-changing constraints regarding the availability and suitability of various compute and data resources. In short, a flexible data and processing fabric is needed to enable the dynamic redirection of data and compute tasks throughout the lifecycle of an experiment. In this talk, we illustrate how we easily leveraged Globus services to instrument the ACE research testbed at the Oak Ridge Leadership Computing Facility with flexible data and task orchestration capabilities.
Large Language Models and the End of ProgrammingMatt Welsh
Talk by Matt Welsh at Craft Conference 2024 on the impact that Large Language Models will have on the future of software development. In this talk, I discuss the ways in which LLMs will impact the software industry, from replacing human software developers with AI, to replacing conventional software with models that perform reasoning, computation, and problem-solving.
Strategies for Successful Data Migration Tools.pptxvarshanayak241
Data migration is a complex but essential task for organizations aiming to modernize their IT infrastructure and leverage new technologies. By understanding common challenges and implementing these strategies, businesses can achieve a successful migration with minimal disruption. Data Migration Tool like Ask On Data play a pivotal role in this journey, offering features that streamline the process, ensure data integrity, and maintain security. With the right approach and tools, organizations can turn the challenge of data migration into an opportunity for growth and innovation.
TROUBLESHOOTING 9 TYPES OF OUTOFMEMORYERRORTier1 app
Even though at surface level ‘java.lang.OutOfMemoryError’ appears as one single error; underlyingly there are 9 types of OutOfMemoryError. Each type of OutOfMemoryError has different causes, diagnosis approaches and solutions. This session equips you with the knowledge, tools, and techniques needed to troubleshoot and conquer OutOfMemoryError in all its forms, ensuring smoother, more efficient Java applications.
Prosigns: Transforming Business with Tailored Technology SolutionsProsigns
Unlocking Business Potential: Tailored Technology Solutions by Prosigns
Discover how Prosigns, a leading technology solutions provider, partners with businesses to drive innovation and success. Our presentation showcases our comprehensive range of services, including custom software development, web and mobile app development, AI & ML solutions, blockchain integration, DevOps services, and Microsoft Dynamics 365 support.
Custom Software Development: Prosigns specializes in creating bespoke software solutions that cater to your unique business needs. Our team of experts works closely with you to understand your requirements and deliver tailor-made software that enhances efficiency and drives growth.
Web and Mobile App Development: From responsive websites to intuitive mobile applications, Prosigns develops cutting-edge solutions that engage users and deliver seamless experiences across devices.
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Blockchain Integration: Prosigns offers comprehensive blockchain solutions, including development, integration, and consulting services, enabling businesses to leverage blockchain technology for enhanced security, transparency, and efficiency.
DevOps Services: Prosigns' DevOps services streamline development and operations processes, ensuring faster and more reliable software delivery through automation and continuous integration.
Microsoft Dynamics 365 Support: Prosigns provides comprehensive support and maintenance services for Microsoft Dynamics 365, ensuring your system is always up-to-date, secure, and running smoothly.
Learn how our collaborative approach and dedication to excellence help businesses achieve their goals and stay ahead in today's digital landscape. From concept to deployment, Prosigns is your trusted partner for transforming ideas into reality and unlocking the full potential of your business.
Join us on a journey of innovation and growth. Let's partner for success with Prosigns.
4. Basic Techniques of Encryption- Transposition Cipher
Encrypts by changing the order of characters in
the text.
• e.g. : Replace 1st character with 6th
• 2nd with 7th
• 3rd with 8th
• 4th with 9th
• 5th with 10th and so on
5. Basic Techniques of Encryption- Transposition Cipher
WE WILL ATTACK ON BHAI ON SUNDAY
LL ATWE WI ON BHTACK SUNDAAI ONY
TRANSPOSETRANSPOSE
6. Basic Techniques of Encryption- Substitution Cipher
Encrypts by replacing the characters in the text with
characters in a “Key” on the basis of some rule. e.g. :
• Key is “MANISH” and Rule is Replace all
• A in the text with M
• B with A
• C with N
• D with I
• E with S
• F with H
• G with A and so on
7. Basic Techniques of Encryption- Substitution Cipher
INDORE IS A GOOD CITY
DKILQS DR M BLLI NDTY
SUBSTITUTESUBSTITUTE
8. Basic Techniques of Encryption- Product Cipher
Combination of Transposition and Substitution
• Take a Key
• replace the characters in the text with characters in
the Key.
• Transpose the result.
9. Basic Techniques of Encryption- Product Cipher
INDORE IS A GOOD CITY
DKILQS DR M BLLI NDTY
SUBSTITUTESUBSTITUTE
TRANSPOSETRANSPOSE
S DR DKILQI NDTM BLLY
13. A MATTER OF TRUST
• Building Trust: Direct trust relationship
Using Encryption
14. Some every day transactions:
Credit Card
Contract
Notarized
Notarized
Document
Medical
Records
Why do we place trust
in these transactions?
• Authentication
• Confidentiality
• Integrity
• Non-repudiation
15. Ways of Encryption
Two ways of encryption
Symmetric Key or
Private Key Encryption
Asymmetric Key or
Public Key Encryption
(abbreviated as PKI)
16. Symmetric Cryptosystem
Also called private key infrastructure
Cleartext Message Cipher Text Cleartext Message
DES | RC4 DES | RC4Four score and
seven years
ago, our
forefathers
brought forth
the proposition
Four score and
seven years
ago, our
forefathers
brought forth
the proposition
sdfklj98a475$5
6jhgv98456vjnf
84576FGHH78
lfkghj-
506#6lkjg4#$5;
lkn;t7;lsk%0
17. Symmetric Cryptosystem
• Similar key is used for
encryption and decryption
• Both parties should know
the same key
Original
Message
Original
Message
Encrypted
Message
Encrypted
Message
Also called private key infrastructure
Secured transmission of encryption key to other person is a problem.
18. Asymmetric Cryptosystem
Also called Public Key Infrastructure (PKI)
Improvement over Private Key System
Provides all elements expected from a secure transaction :
• Authentication
• Confidentiality
• Integrity
• Non-repudiation
Accordingly generates :
• Signed message
• Secret message
• Signed and Secret message
19. Public Key System
One half of a key pair is used to encrypt,
the other half is used to decrypt.
EncryptionEncryption
Recipient’s
Public
Key
Recipient’s
Private
Key
DecryptionDecryption
20. Public Key Infrastructure(PKI)
Uses a pair of keys.
One part of pair is used for encryption
Another part is used for decryption
One part is kept private (called private key of a person) and
another is made public (called public key of a person)
Any key (public or private) can be used for encryption and
then another is used for decryption
Same key can not be used for encryption and decryption
both. There has to be combination of both keys.
Basic MethodologyBasic Methodology
21. Public Key Infrastructure(PKI)
To generate a secret message
Message is encrypted by
sender with Receiver’s public
key and
It is decrypted by receiver
with his private key.
How messages are generatedHow messages are generated
Original
Message
Encrypted
Message
Receiver’s public key
Encrypted
Message
Original
Message
Receiver’s private key
Encryption
Decryption
• ConfidentialityConfidentiality • IntegrityIntegrity
It ensures :
22. Public Key Infrastructure(PKI)
To generate a signed message
Message is encrypted by
sender with Sender’s private key
and
It is decrypted by receiver
with Sender’s public key.
How messages are generatedHow messages are generated
Original
Message
Encrypted
Message
Sender’s private key
Encrypted
Message
Original
Message
Sender’s public key
Encryption
Decryption
• AuthenticationAuthentication • Non RepudiationNon Repudiation
It ensures :
23. Asymmetric Cryptosystem
Original
Message
Encrypted
Message I
Sender’s private key
Encrypted
Message II
Receiver’s public key
Encrypted
Message II
Encrypted
Message I
Original
Message
Sender’s public key Receiver’s private
key
To generate a signed and
secret message :
Message is first encrypted
by sender with Sender’s
private key.
This encrypted message is
again encrypted with
Receiver’s public key
It is decrypted by receiver
first with his private key and
then with sender’s public key.
How messages are generatedHow messages are generated
It ensures :
AuthenticationAuthentication Non RepudiationNon RepudiationIntegrityIntegrityConfidentialityConfidentiality
24. Digital Signatures
• Digital signatures are hash code of a document
encrypted with sender’s private key.
• For sending the message, first hash code of message is
generated.
• This hash code is encrypted using sender’s private key.
• The message is sent along with encrypted hash code.
• At other end, receiver decrypts hash code with sender’s
public key.
• He also on his own calculates hash code of the message
received.
• Two hash codes should tally.
AuthenticationAuthentication
It ensures :
Non RepudiationNon RepudiationIntegrityIntegrity
Basic MethodologyBasic Methodology
25. Digital Signatures
• In earlier process, message has been sent in clear text
form thus confidentiality has not been achieved.
• To overcome this problem, message and encrypted hash
code may be encrypted by a symmetric key.
• This symmetric key is also then encrypted with
receiver’s public key.
• All these i.e. Message and encrypted hash code which
are now encrypted with symmetric key and symmetric
key itself which is now encrypted with receiver’s public
key, are sent to receiver.
• Receiver first decrypt the symmetric key with his private
key and then decrypt message and hash code with this
symmetric key.
26. How does PKI work?
Original
Message
Encrypted
& Signed
Sender’s
Private KeyHash Code
Digital
Signature
Symmetric Key
Recipient’s
Public Key
Encrypted
Symmetric
KeySender
Original
Message
27. How does PKI work?
Encrypted
& Signed
Symmetric KeyEncrypted
Symmetric
Key
Recipient’s
Private Key
Original
Message
Hash
Algorithm
Hash CodeDigital
Signature
Sender’s
Public Key
Message
verified
Recipient
28. private
Certificate ties a
participant to public key
The authenticity of the
certificate is guaranteed
by the digital signature
generated using the
CA’s private key.
Validity Period
Expires: 31 December 2022
Public Key:
Signed: CA’s
Signature
Name: Prashant Mali
Number: 2564567A
ID Number & Name
A Digital Certificate is a digitally signed document
that associates a public key with a user.
Digital Certificate
30. Encryption Standard
Data Encryption standard
• A short key, strong algorithm system
• Uses a 64 bit key, 56 bits for algorithm and 8 bits are
parity
RSA (Rivest, Shamir, Adalman)
• Public key system.
• Once private key is used to encrypt, it can be
decrypted only using its public key and vice-versa.