This document provides an overview of SSL (Secure Sockets Layer) technology, including why it is used, how it works, and common troubleshooting tips. SSL addresses issues with communicating securely over the internet such as verifying identities, preventing eavesdropping, and modifying data. It uses public key cryptography where each party has a public and private key to encrypt data. The SSL handshake process negotiates encryption between client and server before transmitting encrypted data. Common SSL issues involve certificate validation errors, which can be debugged using stack traces and tools like Keytool and OpenSSL.
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. :)
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. :)
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.
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/TLS Introduction with Practical Examples Including Wireshark CapturesJaroslavChmurny
As some of my colleagues are solving various SSL/TLS problems for one of our customers, I have prepared the above mentioned training for them. The training is divided to three parts:
- Brief Introduction to Public Key Infrastructure (PKI)
- Introduction to SSL/TLS Protocols
- Practical Examples and Hints
The last part primarily consists of hands-on exercises with Wireshark, covering variety of successful and failed SSL/TLS handshakes. The hands-on exercises are based on easily configurable dummy SSL client and server implemented in Java (available at https://github.com/Jardo72/SSL-Sandbox).
The Fundamental of Secure Socket Layer (SSL)Vishal Kumar
"The Fundamental of SSL" it is the first part of this Topic in which we covered covers the deep understanding of Secure Socket Layer, its position in the TCP/IP suit, its sub protocols and the working or Handshake Protocol.
Learn about Secure Socket Layer. SSL (Secure Sockets Layer) is the standard security technology for establishing an encrypted link between a web server and a browser.
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.
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/TLS Introduction with Practical Examples Including Wireshark CapturesJaroslavChmurny
As some of my colleagues are solving various SSL/TLS problems for one of our customers, I have prepared the above mentioned training for them. The training is divided to three parts:
- Brief Introduction to Public Key Infrastructure (PKI)
- Introduction to SSL/TLS Protocols
- Practical Examples and Hints
The last part primarily consists of hands-on exercises with Wireshark, covering variety of successful and failed SSL/TLS handshakes. The hands-on exercises are based on easily configurable dummy SSL client and server implemented in Java (available at https://github.com/Jardo72/SSL-Sandbox).
The Fundamental of Secure Socket Layer (SSL)Vishal Kumar
"The Fundamental of SSL" it is the first part of this Topic in which we covered covers the deep understanding of Secure Socket Layer, its position in the TCP/IP suit, its sub protocols and the working or Handshake Protocol.
Learn about Secure Socket Layer. SSL (Secure Sockets Layer) is the standard security technology for establishing an encrypted link between a web server and a browser.
SSL Implementation - IBM MQ - Secure Communications nishchal29
Presenting the basics of SSL/TLS , usage of SSL protocol to secure the IBM MQ channels. Secure Communications between two Queue Managers and various test cases , between an application and Queue Manager , Errors , Certificate Renewal ..
Explain how SSL protocol is used to ensure the confidentiality and int.docxtodd401
Explain how SSL protocol is used to ensure the confidentiality and integrity of the Internet traffic.
Solution
SSL uses a combination of public-key and symmetric-key encryption to secure a connection between two machines, typically a Web or mail server and a client machine, communicating over the Internet or an internal network.
Using the OSI reference model as context, SSL runs above the TCP/IP protocol, which is responsible for the transport and routing of data over a network, and below higher-level protocols such as HTTP and IMAP, encrypting the data of network connections in the application layer of the Internet Protocol suite. The \"sockets\" part of the term refers to the sockets method of passing data back and forth between a client and a server program in a network, or between program layers in the same computer.
The Transport Layer Security (TLS) protocol evolved from SSL and has largely superseded it, although the terms SSL or SSL/TLS are still commonly used; SSL is often used to refer to what is actually TLS. The combination of SSL/TLS is the most widely deployed security protocol used today and is found in applications such as Web browsers, email and basically any situation where data needs to be securely exchanged over a network, like file transfers, VPN connections, instant messaging and voice over IP.
The SSL protocol includes two sub-protocols: the record protocol and the \"handshake\" protocol. These protocols allow a client to authenticate a server and establish an encrypted SSL connection. In what\'s referred to as the \"initial handshake process,\" a server that supports SSL presents its digital certificate to the client to authenticate the server\'s identity. Server certificates follow the X.509 certificate format that is defined by the Public-Key Cryptography Standards (PKCS). The authentication process uses public-key encryption to validate the digital certificate and confirm that a server is in fact the server it claims to be.
Once the server has been authenticated, the client and server establish cipher settings and a shared key to encrypt the information they exchange during the remainder of the session. This provides data confidentiality and integrity. This whole process is invisible to the user.
For example, if a webpage requires an SSL connection, the URL will change from HTTP to HTTPS and a padlock icon appears in the browser once the server has been authenticated.
The handshake also allows the client to authenticate itself to the server. In this case, after server authentication is successfully completed, the client must present its certificate to the server to authenticate the client\'s identity before the encrypted SSL session can be established.
.
Introduction to Secure Socket Layer (SSL) and Tunnel Layer Security (TLS). Shows basic principle of SSL and also little bit of practical applicability.
Stands for "Secure Sockets Layer." SSL is a secure protocol developed for sending information securely over the Internet. Many websites use SSL for secure areas of their sites, such as user account pages and online checkout. Usually, when you are asked to "log in" on a website, the resulting page is secured by SSL.
Improving the Secure Socket Layer by Modifying the RSA AlgorithmIJCSEA Journal
Secure Socket Layer (SSL) is a cryptographic protocol which has been used broadly for making secure connection to a web server. SSL relies upon the use of dependent cryptographic functions to perform a secure connection. The first function is the authentication function which facilitates the client to identify the server and vice versa [1]. There have been used, several other functions such as encryption and integrity for the imbuement of security. The most common cryptographic algorithm used for ensuring security is RSA. It still has got several security breaches that need to be dealt with. An improvement over this has been implemented in this paper. In this paper, a modification of RSA has been proposed that switches from the domain of integers to the domain of bit stuffing to be applied to the first function of SSL that would give more secure communication. The introduction of bit stuffing will complicate the access to the message even after getting the access to the private key. So, it will enhance the security which is the inevitable requirement for the design of cryptographic protocols for secure communication.
State of ICS and IoT Cyber Threat Landscape Report 2024 previewPrayukth K V
The IoT and OT threat landscape report has been prepared by the Threat Research Team at Sectrio using data from Sectrio, cyber threat intelligence farming facilities spread across over 85 cities around the world. In addition, Sectrio also runs AI-based advanced threat and payload engagement facilities that serve as sinks to attract and engage sophisticated threat actors, and newer malware including new variants and latent threats that are at an earlier stage of development.
The latest edition of the OT/ICS and IoT security Threat Landscape Report 2024 also covers:
State of global ICS asset and network exposure
Sectoral targets and attacks as well as the cost of ransom
Global APT activity, AI usage, actor and tactic profiles, and implications
Rise in volumes of AI-powered cyberattacks
Major cyber events in 2024
Malware and malicious payload trends
Cyberattack types and targets
Vulnerability exploit attempts on CVEs
Attacks on counties – USA
Expansion of bot farms – how, where, and why
In-depth analysis of the cyber threat landscape across North America, South America, Europe, APAC, and the Middle East
Why are attacks on smart factories rising?
Cyber risk predictions
Axis of attacks – Europe
Systemic attacks in the Middle East
Download the full report from here:
https://sectrio.com/resources/ot-threat-landscape-reports/sectrio-releases-ot-ics-and-iot-security-threat-landscape-report-2024/
Transcript: Selling digital books in 2024: Insights from industry leaders - T...BookNet Canada
The publishing industry has been selling digital audiobooks and ebooks for over a decade and has found its groove. What’s changed? What has stayed the same? Where do we go from here? Join a group of leading sales peers from across the industry for a conversation about the lessons learned since the popularization of digital books, best practices, digital book supply chain management, and more.
Link to video recording: https://bnctechforum.ca/sessions/selling-digital-books-in-2024-insights-from-industry-leaders/
Presented by BookNet Canada on May 28, 2024, with support from the Department of Canadian Heritage.
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
Builder.ai Founder Sachin Dev Duggal's Strategic Approach to Create an Innova...Ramesh Iyer
In today's fast-changing business world, Companies that adapt and embrace new ideas often need help to keep up with the competition. However, fostering a culture of innovation takes much work. It takes vision, leadership and willingness to take risks in the right proportion. Sachin Dev Duggal, co-founder of Builder.ai, has perfected the art of this balance, creating a company culture where creativity and growth are nurtured at each stage.
Elevating Tactical DDD Patterns Through Object CalisthenicsDorra BARTAGUIZ
After immersing yourself in the blue book and its red counterpart, attending DDD-focused conferences, and applying tactical patterns, you're left with a crucial question: How do I ensure my design is effective? Tactical patterns within Domain-Driven Design (DDD) serve as guiding principles for creating clear and manageable domain models. However, achieving success with these patterns requires additional guidance. Interestingly, we've observed that a set of constraints initially designed for training purposes remarkably aligns with effective pattern implementation, offering a more ‘mechanical’ approach. Let's explore together how Object Calisthenics can elevate the design of your tactical DDD patterns, offering concrete help for those venturing into DDD for the first time!
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.
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.
Key Trends Shaping the Future of Infrastructure.pdfCheryl Hung
Keynote at DIGIT West Expo, Glasgow on 29 May 2024.
Cheryl Hung, ochery.com
Sr Director, Infrastructure Ecosystem, Arm.
The key trends across hardware, cloud and open-source; exploring how these areas are likely to mature and develop over the short and long-term, and then considering how organisations can position themselves to adapt and thrive.
2. SSL
Secure Sockets Layer, or SSL (pronounced as
separate letters), is a protocol which is used to
communicate over the Internet in a secure fashion.
The following is a brief but comprehensive
introduction to SSL technology. To better understand
the need for SSL, lets first examine the difficulties of
using the Internet if no SSL encryption existed.
3. Why Use SSL?
Transferring sensitive information over a network can be risky due
to the following three issues:
You cannot always be sure that the entity with whom you are
communicating is really who you think it is.
Network data can be intercepted, so it is possible that it can be
read by an unauthorized third party, sometimes known as an
attacker.
If an attacker can intercept the data, the attacker may be able to
modify the data before sending it on to the receiver.
SSL addresses all these issues.
4. SSL Details
SSL technology relies on the concept of ‘public key
cryptography’ to accomplish its tasks. In normal
encryption, two communicating parties each share a
password or key, and this is used to both encrypt and
decrypt messages. While this is a very simple and
efficient method, it doesn’t solve the problem of
giving the password to someone you have not yet
met or trust.
In public key cryptography, each party has two keys,
a public key and a private key. Information encrypted
with a person’s public key can only be decrypted with
the private key and vice versa. Each user publicly
tells the world what his public key is but keeps his
private key for himself.
6.
Client hello - The client sends the server information including the highest version of
SSL it supports and a list of the cipher suites it supports. (TLS 1.0 is indicated as SSL
3.1.) The cipher suite information includes cryptographic algorithms and key sizes.
Server hello - The server chooses the highest version of SSL and the best cipher
suite that both the client and server support and sends this information to the client.
Certificate - The server sends the client a certificate or a certificate chain. A
certificate chain typically begins with the server's public key certificate and ends with
the certificate authority's root certificate. This message is optional, but is used
whenever server authentication is required.
Certificate request - If the server needs to authenticate the client, it sends the client
a certificate request. In Internet applications, this message is rarely sent.
Server key exchange - The server sends the client a server key exchange message
when the public key information sent in 3) above is not sufficient for key exchange.
Server hello done - The server tells the client that it is finished with its initial
negotiation messages.
Certificate - If the server requests a certificate from the client in Message 4, the
client sends its certificate chain, just as the server did in Message 3.
7.
Client key exchange - The client generates information used to create a key to use
for symmetric encryption. For RSA, the client then encrypts this key information with
the server's public key and sends it to the server.
Certificate verify - This message is sent when a client presents a certificate as
above. Its purpose is to allow the server to complete the process of authenticating the
client. When this message is used, the client sends information that it digitally signs
using a cryptographic hash function. When the server decrypts this information with
the client's public key, the server is able to authenticate the client.
Change cipher spec - The client sends a message telling the server to change to
encrypted mode.
Finished - The client tells the server that it is ready for secure data communication to
begin.
Change cipher spec - The server sends a message telling the client to change to
encrypted mode.
Finished - The server tells the client that it is ready for secure data communication to
begin. This is the end of the SSL handshake.
Encrypted data - The client and the server communicate using the symmetric
encryption algorithm and the cryptographic hash function negotiated in Messages 1
and 2, and using the secret key that the client sent to the server in Message 8.
Close Messages - At the end of the connection, each side will send a close_notify
message to inform the peer that the connection is closed.
8. To set up SSL
Weblogic
http://weblogic-wonders.com/weblogic/2010/11/11/configuring-sslon-weblogic-server-custom-identity-and-custom-trust/
Jboss
http://weblogic-wonders.com/weblogic/2010/04/07/sslconfiguration-with-jboss-server/
Websphere
http://weblogic-wonders.com/weblogic/2011/07/06/certificatemanagement-in-websphere-application-server-2/
9. Formats
.pem – (Privacy-enhanced Electronic Mail) Base64 encoded DER certificate,
enclosed between “
-----BEGIN CERTIFICATE-----"
"-----END CERTIFICATE-----"
A .pem format file supports multiple digital certificates (for example, a certificate chain
can be included). The order is important (include the files in the order of trust). The server
digital certificate should be the first digital certificate in the file. The issuer of that digital
certificate should be the next file and so on until you get to the self-signed root certificate
authority certificate.
.cer, .crt, .der – usually in binary DER form, but Base64-encoded certificates are
common too (see .pem above)
.p7b, .p7c – PKCS#7 SignedData structure without data, just certificate(s) or CRL(s)
.p12 – PKCS#12, may contain certificate(s) (public) and private keys (password
protected)
.pfx – PFX, predecessor of PKCS#12
.jks – JAVA Keystore, used to store public/private key pairs, trusted certificates
15. Common Issues
Incomplete CA Chains
Invalid keys
Certificate expiration
Required certificate not present in trust keystore
Hostname Verification Failure
16. Stack Traces
PKIX path building failed:
sun.security.provider.certpath.SunCertPathBuilderException: unable to
find valid certification path to requested target
java.security.InvalidKeyException: Illegal key size
java.security.InvalidAlgorithmParameterException: the trustAnchors
parameter must be non-empty
Signature verification failed because RSA key public exponent [3] is too
small
Solutions ??
http://weblogic-wonders.com/weblogic/2010/01/28/troubleshooting-ssl-issues/