Transport Layer Security (TLS) is the successor to the Secure Sockets Layer (SSL) protocol. TLS ensures privacy and security between communicating applications and users on the internet by preventing eavesdropping, tampering, and message forgery. It works by having the client and server negotiate a cipher suite and protocol version to use to securely transmit encrypted messages. This establishes a secure channel over an unsecured network like the internet to provide confidentiality, integrity, and authentication of communications.
It is an IETF standardization initiative whose goal is to come out with an Internet standard Version of SSL. The presentation discusses all. Happy Learning. :)
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).
It is an IETF standardization initiative whose goal is to come out with an Internet standard Version of SSL. The presentation discusses all. Happy Learning. :)
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).
A hash function usually means a function that compresses, meaning the output is shorter than the input
A hash function takes a group of characters (called a key) and maps it to a value of a certain length (called a hash value or hash).
The hash value is representative of the original string of characters, but is normally smaller than the original.
This term is also known as a hashing algorithm or message digest function.
Hash functions also called message digests or one-way encryption or hashing algorithm.
http://phpexecutor.com
A presentation which on Wireless Network Security. It contains Introduction to wireless networking, security threats and risks, best practices on using wireless networks.
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)
A hash function usually means a function that compresses, meaning the output is shorter than the input
A hash function takes a group of characters (called a key) and maps it to a value of a certain length (called a hash value or hash).
The hash value is representative of the original string of characters, but is normally smaller than the original.
This term is also known as a hashing algorithm or message digest function.
Hash functions also called message digests or one-way encryption or hashing algorithm.
http://phpexecutor.com
A presentation which on Wireless Network Security. It contains Introduction to wireless networking, security threats and risks, best practices on using wireless networks.
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)
SILICON CHIPS TAMILAN
அணில் சேவைகள் (Squirrel Services)
Hello friends, this is my YouTube channel where I share knowledge about computer hardware, software, networking, server details and Job openings..
NAME : VIGNESH KUMAR
ADDRESS : INDIA , (TAMILNADU).
INSTAGRAM USER NAME : vignesh301992
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.
Comparative Analysis of Open-SSL Vulnerabilities & Heartbleed Exploit DetectionCSCJournals
Since its introduction in 1994 the Secure Socket Layer (SSL) protocol (later renamed to Transport Layer Security (TLS)) evolved to the de facto standard for securing the transport layer. SSL/TLS can be used for ensuring data confidentiality, integrity and authenticity during transport. A main feature of the protocol is its flexibility. Modes of operation and security aims can easily be configured through different cipher suites. During its evolutionary development process several flaws were found. However, the flexible architecture of SSL/TLS allowed efficient fixes in order to counter the issues. This paper presents an overview on theoretical and practical attacks of the last 20 years.
Hierarchical Digital Twin of a Naval Power SystemKerry Sado
A hierarchical digital twin of a Naval DC power system has been developed and experimentally verified. Similar to other state-of-the-art digital twins, this technology creates a digital replica of the physical system executed in real-time or faster, which can modify hardware controls. However, its advantage stems from distributing computational efforts by utilizing a hierarchical structure composed of lower-level digital twin blocks and a higher-level system digital twin. Each digital twin block is associated with a physical subsystem of the hardware and communicates with a singular system digital twin, which creates a system-level response. By extracting information from each level of the hierarchy, power system controls of the hardware were reconfigured autonomously. This hierarchical digital twin development offers several advantages over other digital twins, particularly in the field of naval power systems. The hierarchical structure allows for greater computational efficiency and scalability while the ability to autonomously reconfigure hardware controls offers increased flexibility and responsiveness. The hierarchical decomposition and models utilized were well aligned with the physical twin, as indicated by the maximum deviations between the developed digital twin hierarchy and the hardware.
Industrial Training at Shahjalal Fertilizer Company Limited (SFCL)MdTanvirMahtab2
This presentation is about the working procedure of Shahjalal Fertilizer Company Limited (SFCL). A Govt. owned Company of Bangladesh Chemical Industries Corporation under Ministry of Industries.
Saudi Arabia stands as a titan in the global energy landscape, renowned for its abundant oil and gas resources. It's the largest exporter of petroleum and holds some of the world's most significant reserves. Let's delve into the top 10 oil and gas projects shaping Saudi Arabia's energy future in 2024.
Welcome to WIPAC Monthly the magazine brought to you by the LinkedIn Group Water Industry Process Automation & Control.
In this month's edition, along with this month's industry news to celebrate the 13 years since the group was created we have articles including
A case study of the used of Advanced Process Control at the Wastewater Treatment works at Lleida in Spain
A look back on an article on smart wastewater networks in order to see how the industry has measured up in the interim around the adoption of Digital Transformation in the Water Industry.
About
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Technical Specifications
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
Key Features
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface
• Compatible with MAFI CCR system
• Copatiable with IDM8000 CCR
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
Application
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
CFD Simulation of By-pass Flow in a HRSG module by R&R Consult.pptxR&R Consult
CFD analysis is incredibly effective at solving mysteries and improving the performance of complex systems!
Here's a great example: At a large natural gas-fired power plant, where they use waste heat to generate steam and energy, they were puzzled that their boiler wasn't producing as much steam as expected.
R&R and Tetra Engineering Group Inc. were asked to solve the issue with reduced steam production.
An inspection had shown that a significant amount of hot flue gas was bypassing the boiler tubes, where the heat was supposed to be transferred.
R&R Consult conducted a CFD analysis, which revealed that 6.3% of the flue gas was bypassing the boiler tubes without transferring heat. The analysis also showed that the flue gas was instead being directed along the sides of the boiler and between the modules that were supposed to capture the heat. This was the cause of the reduced performance.
Based on our results, Tetra Engineering installed covering plates to reduce the bypass flow. This improved the boiler's performance and increased electricity production.
It is always satisfying when we can help solve complex challenges like this. Do your systems also need a check-up or optimization? Give us a call!
Work done in cooperation with James Malloy and David Moelling from Tetra Engineering.
More examples of our work https://www.r-r-consult.dk/en/cases-en/
Water scarcity is the lack of fresh water resources to meet the standard water demand. There are two type of water scarcity. One is physical. The other is economic water scarcity.
1. Transport Layer Security
(TLS)
Secure Socket Layer
(SSL)
Group Members: Roll No.
Ali Akber 1406
Rana Assad Ali 1407
Qasim Ali 1425
Toseef Khadim 1427
BS(cs 4rth smester)
Topic
3. SSL History
Netscape developed The Secure Sockets Layer Protocol
(SSL) in 1994, as a response to the growing concern over
security on the Internet.
SSL was originally developed for securing web browser and
server communications.
SSL v3.0 was specified in an Internet Draft (1996)
4. SSL (Secure Socket Layer)
SSL is a Secure Sockets Layer
SSL is the standard security technology for establishing an
encrypted link between a web server and a browser.
This link ensures that all data passed between the web
server and browsers remain private and integral
There are several versions of the SSL protocol defined. The
latest version, the Transport Layer Security Protocol (TLS),
is based on SSL 3.0
SSL Version 1.0
SSL Version 2.0
SSL Version 3.0
5. Where SSL fits?
HTTP SMTP POP3
80 25 110
HTTPS SSMTP SPOP3
443 465 995
Secure Socket Layer
Transport
Network
Data Link
Port
No.
7. SSL
It is the most widely known as the protocol that, coupled
with HTTP, secures the Web and uses the “https” URI
scheme
8. SSL components
SSL Handshake Protocol
Negotiation of security algorithms and parameters
Key exchange
Server authentication and optionally client authentication
SSL Record Protocol
Fragmentation
Compression
Message authentication and integrity protection
Encryption
SSL Alert Protocol
Error messages (fatal alerts and warnings)
SSL Change Cipher Spec Protocol
A single message that indicates the end of the SSL handshake
9. SSL Goals
Confidentiality
The data being transmitted over the Internet or network needs confidentiality. In
other words, people do not want their credit card number, account login,
passwords or personal information to be exposed over the Internet.
Integrity Protection
The data needs to remain integral, which means that once credit card details and
the amount to be charged to the credit card have been sent, a hacker sitting in
the middle cannot change the amount to be cha rged and where the funds should
go.
Authentication
Your organization needs identity assurance to authenticate itself to customers /
extranet users and ensure them they are dealing with the right organization.
Your organization needs to comply with regional, national or international
regulations on data privacy, security and integrity
12. Two protocols are dominant today for providing
security at the transport layer
Secure Sockets Layer (SSL) protocol
Transport Layer Security (TLS) protocol
13. Definition:
Transport Layer Security (TLS) was designed to
provide security at the transport layer.
TLS was derived from a security protocol called
Secure Sockets Layer (SSL).
14. Transport Layer Security
(TLS)
TLS is the successor to the Secure Sockets Layer (SSL).
Transport Layer Security (TLS) is a protocol that ensures
privacy between communicating applications and their
users on the Internet.
Is a widely deployed protocol for securing client-server
communications over the internet.
TLS is designed to prevent eavesdropping, tampering,
and message forgery
15. Why do we need it?
TLS ensures that no third party may eavesdrop or
tamper with any message.
16. Working of Transport Layer
Security
The Client connect to server (using TCP). The client can
be anything.
The Client sends a number of specifications :
Version of SSL/TLS
Which cipher suites, compression method it wants to use.
Ver : TLS
1.2
CS:RSA,DSA
,RC4
COMPMETH
OD
17. Working of Transport Layer
Security
The server checks what the highest SSL/TLS version is
that is supported by them both, picks a cipher suite from
one of the client's options (if it supports one), and
optionally picks a compression method.
Client
Ver : TLS
1.2
CS:
RSA
DSA
RC4
COMPMETH
OD
Server
Ver : TLS
1.1
1.2
1.3
CS:RSA
COMPMETHOD
18. Working of Transport Layer
Security
After this the basic setup is done, the server sends its
certificate.
This certificate must be trusted by either the client itself
or a party that the client trusts.
For example if the client trusts GeoTrust, then the client
can trust the certificate from Google.com, because
GeoTrust cryptographically signed Google's certificate.
19. Working of Transport Layer
Security
Having verified the certificate and being certain this
server really is who he claims to be (and not a man in
the middle), a key is exchanged.
This can be a public key, a "PreMasterSecret" or simply
nothing, depending on the chosen ciphersuite.
20. Working of Transport Layer
Security
Both the server and the client can now compute the key
for the symmetric encryption.
0100100001100
1010110110001
1011000110111
1
Hello
21. Working of Transport Layer
Security
The handshake is now finished, and the two hosts can
communicate securely.
22. Working of Transport Layer
Security
To close the connection, a close notify 'alert' is used. If
an attacker tries to terminate the connection by finishing
the TCP connection (injecting a FIN packet), both sides
will know the connection was improperly terminated.
The connection cannot be compromised by this though,
merely interrupted
Ok. Gtg
bye..
Ok see you
later. TC
23. Benefits of TLSSSL
Encryption
TLS can help to secure transmitted data using encryption.
Interoperability
TLS works with most Web browsers, including Microsoft Internet Explorer and Netscape
Navigator, and on most operating systems and Web servers.
Algorithm flexibility
TLS provides options for the authentication mechanisms, encryption algorithms, and
hashing algorithms that are used during the secure session.
Ease of deployment
Many applications use TLS transparently on a Windows Server 2003 operating systems.
Ease of use
Because you implement TLS beneath the application layer, most of its operations are
completely invisible to the client.
The first difference is the version number (major and minor).
The current version of SSL is 3.0; the current version of TLS is 1.0. In other words, SSLv3.0 is compatible with TLSv1.0.
Another minor difference between SSL and TLS is the lack of support for the Fortezza method. TLS does not support Fortezza for key exchange or for encryption/decryption.
“standardized” by IETF RFC2246.
