Definition, SSL Concepts Connection and Service, SSL Architecture, SSL Record Protocol, Record Format, Higher Layer Protocol, Handshake Protocol- Change Cipher Specification and lert Protocol
Pgp-Pretty Good Privacy is the open source freely available tool to encrypt your emails then you can very securely send mails to others over internet without fear of eavesdropping by cryptanalyst.
Pgp-Pretty Good Privacy is the open source freely available tool to encrypt your emails then you can very securely send mails to others over internet without fear of eavesdropping by cryptanalyst.
SSH is a protocol for secure remote access to a machine over untrusted networks.
SSH is a replacement for telnet, rsh, rlogin and can replace ftp.
Uses Encryption.
SSH is not a shell like Unix Bourne shell and C shell (wildcard expansion and command interpreter)
Key management: Introduction, How public key distribution done, Diffie Hellman Key Exchage Algorithm,Digital Certificate. Key Management using Digital certificate is done etc. wireshark screenshot showing digital cetificate.
Defines a framework for authentication service using the X.500 directory.It is the Repository of public-key certificates,Based on use of public-key cryptography and digital signatures.
Transport Layer Security (TLS) is a protocol that ensures privacy between communicating applications and their users on the Internet. When a server and client communicate, TLS ensures that no third party may eavesdrop or tamper with any message. TLS is the successor to the Secure Sockets Layer (SSL).
SSL is an acronym for Secure Sockets Layer. It is a protocol used for authenticating and encrypting web traffic. For web traffic to be authenticated means that your browser is able to verify the identity of the remote server.
SSH is a protocol for secure remote access to a machine over untrusted networks.
SSH is a replacement for telnet, rsh, rlogin and can replace ftp.
Uses Encryption.
SSH is not a shell like Unix Bourne shell and C shell (wildcard expansion and command interpreter)
Key management: Introduction, How public key distribution done, Diffie Hellman Key Exchage Algorithm,Digital Certificate. Key Management using Digital certificate is done etc. wireshark screenshot showing digital cetificate.
Defines a framework for authentication service using the X.500 directory.It is the Repository of public-key certificates,Based on use of public-key cryptography and digital signatures.
Transport Layer Security (TLS) is a protocol that ensures privacy between communicating applications and their users on the Internet. When a server and client communicate, TLS ensures that no third party may eavesdrop or tamper with any message. TLS is the successor to the Secure Sockets Layer (SSL).
SSL is an acronym for Secure Sockets Layer. It is a protocol used for authenticating and encrypting web traffic. For web traffic to be authenticated means that your browser is able to verify the identity of the remote server.
This paper analyzes vulnerabilities of the SSL/TLS
Handshake
protocol
, which
is
responsible
for
authentication of
the parties in the
communication
and
negotiation of
security parameters
that
will be used
to protect
confidentiality and
integrity of the
data
. It
will
be
analyzed the
attacks
against the implementation of Handshake
protocol, as well as the
attacks against the other
elements
necessary to SSL/TLS protocol to discover security
flaws that were exploited, modes of
attack, the potential consequences, but also studyi
ng methods of defense
.
All versions of the
protocol are going to be the subject of the researc
h but
emphasis will be placed
on the critical
attack that
the most endanger the safety of data.
The goal of
the research
is
to point out the
danger of
existence
of at least
vulnerability
in the SSL/TLS protocol
, which
can be exploited
and
endanger the safety of
the data
that should be protected.
This paper analyzes vulnerabilities of the SSL/TLS Handshake protocol, which is responsible for authentication of the parties in the communication and negotiation of security parameters that will be used to protect confidentiality and integrity of the data. It will be analyzed the attacks against the implementation of Handshake protocol, as well as the attacks against the other
elements necessary to SSL/TLS protocol to discover security flaws that were exploited, modes of
attack, the potential consequences, but also studying methods of defense. All versions of the
protocol are going to be the subject of the research but emphasis will be placed on the critical attack that the most endanger the safety of data. The goal of the research is to point out the
danger of existence of at least vulnerability in the SSL/TLS protocol, which can be exploited and endanger the safety of the data that should be protected.
Similar to Network Security- Secure Socket Layer (20)
Introduction to Cloud
Definition
Vision on Cloud Computing
A Closer Look-NewYork Times, Washington Post, private cloud,Public Cloud, Hybrid Cloud, Reference Model, Actors in Cloud Computing, Characteristics and Benefits, Challenges Ahead, History of Cloud Computing, Distributed system, Virtualization, PROS and CONS of Cloud Computing. Technology Examples
M. Florence Dayana - Hadoop Foundation for Analytics.pptxDr.Florence Dayana
Hadoop Foundation for Analytics
History of Hadoop
Features of Hadoop
Key Advantages of Hadoop
Why Hadoop
Versions of Hadoop
Eco Projects
Essential of Hadoop ecosystem
RDBMS versus Hadoop
Key Aspects of Hadoop
Components of Hadoop
M. FLORENCE DAYANA/unit - II logic gates and circuits.pdfDr.Florence Dayana
Logic Gates, Truth Table, AND Gate
Types of Digital Logic AND Gate, The 2-input and 3-input AND Gate, OR Gate, Types of Digital Logic AND Gate, The 2-input OR gate, The 3-input OR gate, NOT Gate, NAND Gate, The 2-input NAND Gate, The 3-input NAND Gate, NOR Gate, 2-input NOR gate
Just like other gates, XOR gate or Exclusive-OR gate
Reading, Pre Task, Reading Strategies, Types of reading, Reading Comprehension, Questions, Comparison, Group Discussion, Identify the Meaning, positive vibration, vocabulary
Listening, form of communication, Process Description, Definition, Model Video for Listening, Questions, Procedure for Flowchart, Pre Listening, Post Listening, Motivational video, comparison video
Input Devices-Keyboard, Mouse, Trackball, Joystick, Scanner and Types, Barcode Reader, Voice Recognition, Web Camera, Optical character recognition, Optical Mark recognition, Monitor, Printer and Types, Plotter
Introduction, networking, types of network, connections, packet switching, open systems, protocols, firewalls, mime types, addresses, domain name system
XML Introduction,Syntax of XML,Well formed XML Documents,XML Document Structure,Document Type Definitions,XML Namespace,XML Schemas,DOM(Document Object Model)
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
The Art Pastor's Guide to Sabbath | Steve ThomasonSteve Thomason
What is the purpose of the Sabbath Law in the Torah. It is interesting to compare how the context of the law shifts from Exodus to Deuteronomy. Who gets to rest, and why?
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdfTechSoup
In this webinar you will learn how your organization can access TechSoup's wide variety of product discount and donation programs. From hardware to software, we'll give you a tour of the tools available to help your nonprofit with productivity, collaboration, financial management, donor tracking, security, and more.
Instructions for Submissions thorugh G- Classroom.pptxJheel Barad
This presentation provides a briefing on how to upload submissions and documents in Google Classroom. It was prepared as part of an orientation for new Sainik School in-service teacher trainees. As a training officer, my goal is to ensure that you are comfortable and proficient with this essential tool for managing assignments and fostering student engagement.
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
For more information, visit-www.vavaclasses.com
How to Split Bills in the Odoo 17 POS ModuleCeline George
Bills have a main role in point of sale procedure. It will help to track sales, handling payments and giving receipts to customers. Bill splitting also has an important role in POS. For example, If some friends come together for dinner and if they want to divide the bill then it is possible by POS bill splitting. This slide will show how to split bills in odoo 17 POS.
Students, digital devices and success - Andreas Schleicher - 27 May 2024..pptxEduSkills OECD
Andreas Schleicher presents at the OECD webinar ‘Digital devices in schools: detrimental distraction or secret to success?’ on 27 May 2024. The presentation was based on findings from PISA 2022 results and the webinar helped launch the PISA in Focus ‘Managing screen time: How to protect and equip students against distraction’ https://www.oecd-ilibrary.org/education/managing-screen-time_7c225af4-en and the OECD Education Policy Perspective ‘Students, digital devices and success’ can be found here - https://oe.cd/il/5yV
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In Odoo, the multi-company feature allows you to manage multiple companies within a single Odoo database instance. Each company can have its own configurations while still sharing common resources such as products, customers, and suppliers.
How to Create Map Views in the Odoo 17 ERPCeline George
The map views are useful for providing a geographical representation of data. They allow users to visualize and analyze the data in a more intuitive manner.
3. Secure Socket Layer (SSL) Protocol
• SSL was originated by Netscape
•Secure Sockets Layer (SSL) is a computer networking protocol for securing
connections between network application clients and servers over an insecure
network, such as the internet.
•SSL is designed to make use of TCP to provide reliable end-to-end secure service.
4. The two important SSL Concepts are
Connection: A connection is a transport that provides a suitable type
of service, such connections are peer-peer relationship.
Every connection is associated with one session
Session: An SSL session is an associated between a client and a
server. Sessions are created by Handshake protocol.
Sessions are used to avoid the expensive negotiation of new security
parameters.
Web client
Web server
5. SSL Architecture
HTTP provides the
transfer service for web
client/server
interaction.
The three higher layer
protocols (handshake,
change cipher spec and
Alert) of SSL is used in
the management of SSL
exchanges.
6. Provides basic security services to various higher-layer
protocols.
o HTTP
o Handshake Protocol
o Change Cipher Spec Protocol
o Alert Protocol
Provides 2 services for SSL connections:
o Confidentiality: Handshake protocol defines a shared
secret key used for conventional encryption of SSL
payloads.
o Message Integrity: Handshake protocol also defines a
shared secret key used to form a Message
Authentication Code (MAC).
SSL Record Protocol
7. SSL Record Protocol Operation
1. The first step is fragmentation into block(214 bytes)
2. Compression must be lossless or may not increase the content of the
length. So the default compression algorithm is null
3. MAC shared the secret key.
4. The compression msg + MAC are encrypted using symmetric
encryption.
5.SSL is to prepared a header consisting of following fields
8. SSL Record Format
Content type(8 bits)-used to process the enclosed fragment.
Major version(8 bits)- indicates the major version of SSL
Minor version(8 bits) - indicates the minor version of SSL
Compressed length – the length of the bytes of plaintext
9. The most complex part of SSL.
Allows the server and client to authenticate each other.
Negotiate encryption, MAC algorithm and cryptographic
keys.
Used before any application data are transmitted.
Higher-Layer Protocols
11. 2. Change Cipher Spec Protocol
• Use SSL record protocol
• Update the cipher suite to be used on this
connection
• It consists of single msg with single byte
with the value 1
3. Alert Protocol
• Used to convey SSL-related alerts to the peer
entity.
• It consists of 2 bytes.
The first bytes takes the value warning or fatal. If
level is fatal means the SSL terminates the
connection.
The second byte contains code that indicates the
specific alert.
