Encryption flex php jobs

Hello! I need someone who is an expert in web programming with PHP to translate any kind of PDF for free in using PHP. This PDF must not lose its quality. It must remain intact and it must preserve the ORC format, style and all. I want the translation to be exactly like the one from onlinedoctranslator.com. I know you're going to tell me that the Google Translate api isn't free, but you can use this library (link removed) . Then it has to choose the number of pages in the PDF. Even if the PDF is 100 pages or more, it must be able to translate it. It must support encrypted PDFs and PDFs protected by passwords. I will use your code in my site. You can visit it and you'll see that the PDF translation is missing. I've told you everything and I hope you'l...

Hello! I need someone who is an expert in web programming with PHP to translate any kind of PDF for free in using PHP. This PDF must not lose its quality. It must remain intact and it must preserve the ORC format, style and all. I want the translation to be exactly like the one from onlinedoctranslator.com. I know you're going to tell me that the Google Translate api isn't free, but you can use this library (link removed) . Then it has to choose the number of pages in the PDF. Even if the PDF is 100 pages or more, it must be able to translate it. It must support encrypted PDFs and PDFs protected by passwords. I will use your code in my site. You can visit it and you'll see that the PDF translation is missing. I've told you everything and I hope you'l...

I have project developer and just installed but i need to configure a virtual machine in order to keep confidence to install and edit for the future the backend and frontend. I have just a guide to install but is very high level guide and I'm to able to install the system. The goal of this project is: - Install on virtual machine Backend php, Fronend php and create a guide step by step to allow me to install in the future myself.

...on our online banking platform and payment gateways, ensuring that these areas are secure from potential cyber threats and vulnerabilities. We want you to prioritize three key security aspects: network security, data encryption, and user authentication. Your expertise should include: - In-depth knowledge of international banking and financial systems and transactions - Proven experience in cybersecurity assessment, penetration testing, and fraud detection - Specialization in online banking platforms and payment gateways - Strong understanding of network security, data encryption, and user authentication - Excellent communication skills and ability to report findings in a clear and concise manner - Up-to-date on the latest cybersecurity trends and threats in the financia...

...properly. I will help you in everything ******* I'm seeking a skilled PHP developer to assist with a project that involves fixing a PHP file and combining a Php ,MySQL database. The main tasks for this project include: - Resolving a database connection issue in the PHP file. - Combining the MySQL database in the backend of the PHP file. Your role will be crucial in ensuring that the database is correctly integrated into the PHP file and that the database connection is stable and error-free. The PHP file should be able to successfully communicate with the MySQL database once the project is complete. Ideal candidates for this project should have: - need to change php file and combine database. - Proficient experience in ...

...online credit card initial deposits at time of scheduling and final payments featuring Vaulting to retain credit card details for future or ongoing appointments. A feature automation to fwd notifications client of booked appointment / via text / emails Pls review the attached samples. - User authentication: This should ensure that only authorized users can have access to information. - Data encryption: This will provide necessary security to protect sensitive data such as confidential business information and customer details. - Scheduling: The scheduling feature should be calendar-based, allowing users to easily follow-up appointments or tasks. - Credit card payments: The API should be able to handle secure credit card transactions without issues. similar to the attached I...

I'm looking for a skilled PHP Laravel developer to quote a PHP Laravel based project. Please note that the scope of this task is to provide a quote for the project, not to complete the project itself. However, if the quote is good, there is a chance that you will get the your bid by answering the following question: What is your favorite Laravel template engine?You must have completed at least 10 Laravel projects and be available for discussions via Zoom. The ideal candidate should have: - Proficiency in PHP and Laravel

Hello^^^^. I'm using Amazon AWS and would like to request server maintenance. First of all, I would like to ask you to do as much as possible for server security and privacy, such as SSL installation, automatic backup once a day, DDOS attack prevention, system performance optimization, hacking prevention, encryption between data transmissions, real-time monitoring, data recovery, backdoor checking, backdoor checking and deletion of compromised files, attack root identification and blocking, suspicious process occupation identification and recovery, server hacking analysis, server access history tracking, password recovery and complexity setting, virus and malicious software checking,,data leakage prevention.....etc My current monthly budget is about $50, Please send me a prop...

I'm in need of an experienced web developer proficient in Python or PHP, specifically with expertise in Magento. The project involves creating a customized e-commerce website, which requires several key features: - Product Catalog: The website must be able to showcase a wide range of products, organized in a user-friendly and visually appealing way. - Shopping Cart & Checkout Process: A seamless and secure shopping experience for users is paramount. This involves a smooth cart functionality and a secure checkout process. - User Registration & Login: The site should enable users to create accounts and log in, allowing for personalized shopping experiences and order tracking. - Super fast load time at least 93 score in google load time. - Booking Platform with Calendar: ...

...and the ability to differentiate between the general and specific content provided for each branch - A high degree of adaptability to utilize the provided assets and similar video samples The video should be approximately 8 to 9 frames long; assets, including sample videos, will be provided to aid your creativity. Please note the goal is not to simply recreate the sample videos. You will need to flex your creative muscles to ensure our video campaign stands out. Frame 1: Text: Summer School Adventures Begin! Registration Open Now! Footage: Energetic montage of children laughing, playing, and learning in various settings (classroom, outdoors, art projects). Frame 2: Text: Engaging Programs for Ages 3-17 Footage: Close-up shots of children of different ages actively participat...

I'm in need of an experienced PHP developer to create a comprehensive web-based portal. This platform will serve as a central hub for both my customers and employees, as well as allow administrators to manage and update the content effectively. Key Features: - User authentication: Implement a robust user authentication system to ensure only authorized personnel can access the portal. - Content Management System (CMS): Create a user-friendly CMS that allows the administrators to update, upload, and manage text and image content on the portal. User Roles: - Customers: The portal will be used by customers to interact with our services. Ensure seamless user experience and accessibility. - Employees: Employees should have access to specific tools and information. Develop an int...

I'm seeking a professional to curate and ...intentional, meant to further enhance the uplifting and positive nature of the video. The ideal candidate for this task should possess: - Proficiency in video editing tools and techniques. - Experience in curating and blending stock video clips. - A keen eye for storytelling and emotional impact. - Understanding of color theory and its impact on the viewer's emotions. This project is an opportunity to flex your creative muscles and craft a video that truly resonates with the viewer. The successful applicant should be able to translate my vision into a compelling and visually captivating final product. Please begin your proposal with "Let's inspire each other with a beautiful vision of the future, Pat!" so that I...

I need a solution that can automatically insert page numbers onto every A4 page in my document at the bottom. Key Requirements: - The system should work with A4 format. - It should be able to insert these page numbers automatically and consistently on every page. - The page numbers should be placed at the bottom of each page. Ideal Freelancer: - Experience working with PDF manipulation and automation. - Proficient in software that can perform automatic page numbering. - Attention to detail in maintaining consistency in design and positioning of the page numbers.

We are seeking an experienced PHP developer to assist in fixing existing and add new back-end functionality. Our platform allows parents to book their children's lunch boxes for selected schools, offering multiple choices for the boxes. Parents can select the school and timings through dropdown menus. We receive the details on our dashboard and print stickers to be pasted on the boxes. Currently, we are facing issues with obtaining accurate order details, leading to mismanagement and manual intervention. We also want to integrate a monthly subscription feature for parents. The ideal candidate should have a strong understanding of PHP and be able to create clean, efficient, and scalable code. As a PHP Developer, you will be responsible for implementing new featur...

I'm in need of a skilled programmer to create an automation code page for me. This code page will be focused on text processing, so a strong understanding of working with textual data is essential. Key Requirements: - Proficient in JavaScript: The automation code should be written in JavaScript to ensure compatibility with other platforms. - Automation Experience: The primary function of this code will be automating tasks. A proven track record in building automated processes is highly desirable. - Text Processing: The code must be able to accurately and efficiently process textual data. Experience in this field will be a huge advantage. If you have experience in JavaScript, a background in automation, and a strong familiarity with text processing, I'd be delighted to hear fro...

I'm in need of a proficient PHP developer to take on a range of responsibilities for my project. You'll be handling both the front and back-end development, as well as maintaining the website. I'm looking for someone who has a strong background in PHP, not just with creating and managing dynamic and interactive web pages, but also maintaining them for optimised performance. Key Responsibilities: - Handling front-end and back-end development - Carrying out website maintenance You must provide examples of your past work in your application. We appreciate attention to detail and a deep understanding of PHP. Since I will provide all the content needed for the website, you can focus solely on the programming side of the task. Your expertise in PHP ...

I am in search of a skilled mobile app developer who can assist me in creating an Android app with a primary focus on cyber security. The app is gearing tow...customers from online frauds. Key Responsibilities: - Develop an Android application from scratch - Implement cyber security features that will shield users from online frauds - Ensure the app is user-friendly and has an intuitive design I'm looking for a developer with: - Proven experience in Android app development - A strong understanding of cyber security principles - Ability to implement encryption and other security features - Knowledge of Android development best practices - Good communication skills to understand the project requirements and deliver the expected results. If you are located around my area, it w...

I'm looking to develop an end-to-end HRMS PHP application that can efficiently manage a large workforce of over 100 employees. Project Details $30.00 – 250.00 USD HRMS Portal Development - Employee Management, Payroll Management, Time and Attendance Management We are looking for a skilled developer to build a customized HRMS portal with the following features: - Employee Management: ability to manage employee data, records, and information - Payroll Management: ability to manage payroll processing and payments - Time and Attendance Management: ability to manage employee attendance and time tracking The preferred technology stack for this project is PHP. We require moderate customization of the HRMS portal, including customizing the user interface and adding additi...

I'm looking to create a website using Codeiner PHP. The website will be a platform for showcasing my work, sharing information, and possibly more features in the future. Key Requirements: - Development of a website using Codeiner PHP Ideal Skills: - Proficiency in Codeiner PHP - Experience with website development, particularly with portfolio websites

i have one php script which used to load in a few seconds now takes 4 minutes not sure why it suddenly lags need optimised - the mysql query hittin some bottleneck somewhere by looks of it

I'm in need of a skilled individual who is proficient in both PHP and Google Gemini. The primary task is to integrate this platform with my PHP website. Key requirements include: - Basic data syncing: The main goal is to ensure that the PHP website and Google Gemini can share important data seamlessly. This includes basic data such as user information, clicks, and impressions. The ideal candidate must have: - Demonstrated expertise in PHP and Google Gemini. - Prior experience in integrating Google Gemini with websites. - Strong communication skills to understand my requirements and provide updates on the integration process.

I'm looking for an experienced full-stack developer to build ...Content Packaging & Distribution - Content Localization - Import & Export Functionality - Settings & Integrations - Security & Compliance - Performance Monitoring & Optimization The ideal candidate should have: - Proven experience developing admin dashboards - Expertise in Flutter, Firebase, PHP - Strong design sense for clean UI/UX - Knowledge of user management, data viz, content systems - Ability to ensure security, performance, compliance Your role will be to implement these features using PHP (or else) and Firebase. I'm open to suggestions and improvements on the features list. Please provide examples of your previous work and an outline of how you would approach this pro...

Simple authentication and authorization app wirh sample user/role in python/flex/dynmoDB hosted in aws ec2 instance.

I need a professional who can analyze the logs of my Apache PHP-FPM server and help me troubleshoot errors. The main focus of this task is to identify and resolve any issues that might be impacting the performance of the server. Key Requirements: - The ideal candidate should have a solid understanding of Apache PHP-FPM logs and their structure. - Good troubleshooting skills are necessary to pinpoint the root causes of the errors. - Ability to present the analysis results in a detailed report is crucial. The main goal is to ensure the server is running smoothly and efficiently. The server use Centos 7, Apache and PHP 5.6

I will pay no more than 30 dollars for this work. Please do not send a bid if you are going to offer a higher price. I'm seeking a skilled PHP programmer proficient with Cora. The goal is to automate the sharing of articles from my website to my business Facebook page. Key requirements: - Automate sharing: I want the programmer to ensure that whenever a new article is uploaded to my website, it's automatically shared to my business Facebook page. - Cora PHP programming: The ideal candidate should have experience with Cora PHP programming, specifically related to integrating website content with Facebook. - Facebook page sharing: The articles should be shared only on my business page, ensuring they reach my target audience. Your duties will include: - Devel...

I am seeking a PHP developer to bring my interactive website vision to life. Key Project Requirements: - The website will require interactive features, enhancing user engagement and experience. - The project demands a high level of proficiency in PHP, as this language will be the backbone of the site. - Skills in HTML, CSS, and potentially JavaScript will also be required to ensure a seamless and visually appealing interface. Ideal Candidate: - Proven experience in developing interactive websites using PHP. - Strong knowledge of front-end technologies to ensure a responsive and visually appealing design. - Excellent communication skills and the ability to understand and translate my vision into a functional website.

...proficient in Angular and PHP, with previous experience in integrating new features. This is for a project that involves: - Frontend Development: Enhancements and integration of Angular components into an existing website/application. - Backend Development: Implementation of necessary PHP functionalities to support the new features and ensure smooth operation of the site/application. - Database Integration: Synchronization of the updated features with the database, and ensuring consistent data flow and storage. The primary goal is to integrate CMS features into the existing system. Your role will include planning, execution, and testing to ensure that the new features are successfully integrated. Ideal candidates should have: - Strong knowledge and experience in Angula...

...files with an attached encrypted key. These files can be securely sent to another user who can download and decrypt the file using the same application. The app will integrate with our existing Shopify website for seamless user experience and functionality. Consultation Scope: - Secure File Upload: Enabling users to upload audio files with embedded encrypted keys. - Encryption & Decryption: Implementing robust encryption methods to ensure the secure attachment of keys to audio files. - File Sharing Facilitating the secure transfer of files between users within the app. - **Bluetooth Key Sharing:** Allowing the encrypted key to be shared via Bluetooth between devices. - Cross-Platform Development: Ensuring compatibility and seamless functionality on both iOS and An...

...include any specific details or events, but a realistic portrayal of these iconic landmarks is crucial. The ideal freelancer for this job would have: - Proficiency in graphic design and digital art - Experience in creating realistic backgrounds and landscapes - A strong portfolio showcasing similar work - Ability to work efficiently and meet deadlines This project provides a great opportunity to flex your creative muscles while working with some of the world's most iconic landmarks....

I need a PHP expert to help me fix a translation bug in my system. - The issue specifically affects the English language version of my website, disrupting various interface labels. - It's essential the freelancer is proficient in identifying and rectifying translation bugs in PHP. Your expertise will be invaluable in ensuring my platform is user-friendly and accessible to all English speakers.

I'm in need of a PHP page that helps our agents to send an order. This page should be intuitive and user-friendly while ensuring all necessary information is captured. The platform should be interactive and user-friendly, ensuring a smooth order submission process for our agents. Ideal Skills: - Proficient in PHP - Strong experience in web development - Knowledge in creating secure web forms - Experience in agent-based systems would be a plus Please bid for this project if you believe you have the skills and experience needed to deliver a high-quality, efficient, and secure PHP page for our agents. Our customer sells products (not online, but in shop). He wants to receive orders from agents. I have an excel file containing the products that he wants to sell....

I need a developer who send me the php code to contruct a php proyy to embed a m3u8 file with CORS restriction. I can provide you some url examples with m3u8 file which initially you can't embed in other domains, but i've seen that some website with some php code avoid this restriction. Send "I HAVE READ IT" in you bid. I only will pay if you send me the code and it works fine. Note: I need the code in php

I have this proyect and I am looking for a developer that has time available to work on the proyect. It is a long term proyect. I need someone with experience in PHP, Laravel, HTML I need to create a copy of a product page. Here is the info needed on the page;

Help me with existing project to optimize the performance of core functionality and add some basic new functionalities. If you're genuine bidder then please write "php&python" in starting of your bid. This is kind of urgent and need to do it in around 1-2 weeks.

I have a PHP site hosted, but it's unfortunately not going live as intended. I need a skilled PHP developer to troubleshoot the site, identify the issue, and implement the necessary fixes to ensure it functions correctly. Key Deliverables: - Diagnose the issue causing the site to not go live - Implement the necessary fixes to ensure the site functions as intended - Provide me with the corrected file for future installation I'm experiencing error messages when I attempt to access the site. So it's crucial to not only fix the issue but also ensure it doesn't reoccur, making the site deployment-ready. Ideal Freelancer: - Experienced PHP developer with a proven track record of troubleshooting and fixing website issues - Strong problem-solving skill...

Hello All, We are an established IT services provider with 13 years of experience and a team of 25 in-house developers. Currently, we are looking to hire some freelancers because we are at full capacity and do not have sufficient resources to handle some of our work. We are seeking a long-term partnership and are willing to provide 20-30 hours of work per week. We welcome both experienced freelancers and those new to this platform who have significant prior experience, such as working in a company before starting their freelance career. This job post is open to all qualified candidates. Now, let's discuss the job requirements, which are urgently needed: We require an expert Laravel Developer who is well-versed in third-party APIs. The candidate must have experience working on inco...

...OTP (One-Time Password). - Integrate SMS gateway for sending verification codes. - Handle the verification process seamlessly within the application. 2. **UI/UX Design:** - Design and implement intuitive screens for phone number entry and OTP verification. - Ensure a smooth and responsive user experience throughout the authentication flow. 3. **Security Measures:** - Implement encryption techniques to protect user data. - Incorporate measures to prevent security threats like brute force attacks and unauthorized access. 4. **Error Handling:** - Implement error handling mechanisms to handle edge cases gracefully. - Provide informative feedback to users during the authentication process. 5. **Testing:** - Conduct rigorous testing to validate the reliab...

I am working on a collaboration platform that will serve as a hub for individuals and small businesses. I need a skilled professional who can bring this vision to life through both design and development. Key Features: - Essential collaboration features such as file sharing, task management, and group chat are needed. - Extensive focus on user security: Incorporating End-to-End Encryption to ensure data privacy. - User Profiles: Users should be able to create and customize basic profiles, post updates, tag others, and use hashtags. - Proposal System: Implement a system for users to like/rate proposals, comment on them, and upload supporting documents/images. - Detailed Proposal Submission: A structured form for users to submit their proposals. - Blockchain Wallet Integration: Secu...

I'm looking to integrate Optical Character Recognition (OCR) into my web application. The primary goal is to automate data entry processes. The current application contains manual data entry. I am attaching a screenshot of how it is entered manually and a picture of the paper from which it is typed. OCR should be done automatically. We can take pictures with a mobile phone in a few ...Synchronization with the Computer The data can be immediately available on a computer via the web application or a specialized desktop application. Real-time synchronization can be achieved using technologies like WebSockets. Security and Authentication It is important to ensure the security of the application by using HTTPS protocol, user authentication (e.g., using JWT - JSON Web Tokens), and data ...

I am in need of skilled developers to build a cross-platform social networking app for both iOS and Android devices. The app main function will contribute to sparking discussions and interactions through cutting-edge features. Key Features: - User profiles to personali...real time content sharing and interactions. - End-to-end (E2E) conversations, facilitating encrypted and private conversations. Ideal developers for this project would have experience in building apps with similar features, fluent in cross-platform development and have a good understanding of user interface design. A strong background in data security would also be beneficial, given the E2E encryption requirement. Previous work in PPAR and live streaming feature integration would make you a standout candidate fo...

...Primary Features: - Timer scheduling - Remote control of ventilation systems - Monitoring parameters including temperature, humidity, twilight, and weather - Real-time notifications and alerts - Scheduling system actions - Support for multiple users simultaneously Given the sensitive nature of the data and operations, the application must be secure. Your work will involve implementing advanced encryption to safeguard our communications and data. The ideal candidate for this project should be proficient in mobile and desktop application development, with a deep understanding of systems' programming and security protocols. Knowledge of ventilation systems would be a plus. I encourage you to submit a proposal if you can deliver what I need and follow this with dedication and ...

I have a WordPress site which needs a complete makeover. I'm looking for a developer with strong PHP skills to implement the necessary changes. Specifically, I need a talented individual to customize the theme of my WordPress website, focusing on the color scheme, layout structure, and font styles. Key Responsibilities: - Customize the color scheme of the website to align with our brand identity. - Implement changes to the layout structure of the site for improved user experience. - Modify the font styles across the website to achieve a consistent aesthetic. Ideal Skills and Experience: - Strong proficiency in PHP, with experience in WordPress. - A portfolio demonstrating successful customization of WordPress themes. - A good eye for design, with the ability to harmoni...

...looking for a skilled developer to add a small module to my existing app built with PHP. The main functionality of the module will be user registration, excel upload, and assigning packages. Key Requirements: - Develop a user registration system: The module should collect the following user information: Name, Email address, Phone number, password, course, batch. - Implement an excel upload feature: Users should be able to upload excel files select of course and batch - Enable package assignment: The module should allow for the assignment of packages to users. while user registration or excel upload Ideal Skills and Experience: - Proficient in PHP: As the app is built on this platform, a strong expertise in PHP is essential. - Experience in user registration system...

I am looking for a skilled developer who can create an advanced chatbot for my PHP-based CRM. The key aspects of this project include: - Chatbot for Customer Support: The primary function of this chatbot will be to handle customer inquiries and provide advanced problem-solving support. - Integration with PHP CRM: The chatbot needs to seamlessly integrate with my current CRM system. - GPT AI: The preferred technology for the chatbot is GPT-based AI. - Customization: I would like the chatbot to be fully customizable and easy to program for future updates and modifications. Ideal Skills: - Proficient in PHP, GPT AI, and CRM integrations - Experience in developing advanced chatbots for customer support - Ability to create customizable and easy to program solutions ...

Hey you! Do you have more than 6 years as a Laravel Developer? Can you prove it? Can you prove/provide evidence of what you have personally done as a developer? Does compliance to high security standards, encyption at rest, encryption in transit, AES 256, SHA 256 mean something to you? Are you willing to join an existing project? Are you willing to work for a flat monthly salary? Then this job may be for you. Our team is hard at work building a web application. We currently need an additional developer to assist with some key activities. You will be assigned duties by our Application Team Leader. Shoot us a quick message if interested. No agencies or middle men please.

I'm looking for a skilled individual to design a PCB and program a chip for our RFID system. The focus of this project is on...- **Energy Efficiency Optimisation**: The system to be developed should be as power-efficient as possible. We need the RFID system to function optimally while conserving energy, ensuring long-term sustainability and performance. **Specifics of the Project**: The project is specifically for an RFID system, which comes with unique challenges and requirements. Since the system will not require encryption for secure data transmission, the focus is primarily on a strong wireless connection and energy efficiency. **Ideal Skills and Experience**: - PCB design - Chip programming - Wireless system design - Energy efficiency optimization - Previous experience ...

I'm looking for a skilled WooCommerce developer with expertise in PHP and shipping API integration to help me implement a shipment tracking feature for my online store. Ideal skills and experience would include: - Strong proficiency in PHP and WooCommerce - Extensive experience in integrating shipment tracking APIs - Familiarity with Royal Mail / ParcelForce shipping services - Good understanding of customer satisfaction strategies in an e-commerce setting Key responsibilities include: - Integrating the shipment tracking feature into my WooCommerce site - Ensuring the feature is seamless, user-friendly, and integrates well with the existing site - Making sure that the tracking feature is reliable and accurately reflects the status of the shipments - Offering suggestio...

I just need one task to be done I'm in need of a PHP Developer for a new project. The parameters and required skills are fairly open, as I've not declared any specific frameworks or preferences. Ideal candidates include those who possess: - Broad knowledge of PHP across various frameworks. Although Laravel, CodeIgniter, and WordPress were the options given, these indications were not selected, thus creating an open space for any skilled PHP professional to apply. - Experience in both website and web application development. There's an opportunity to work on several PHP development projects, potentially ranging from website building, application creation, to API integrations. - An impressive design eye. I've left the space open for any desig...

...website. Here's what I need: - **Migration Issue:** The problem I'm experiencing is related to theme and plugin compatibility following the migration from a server running PHP 7.2.4 where the site worked to a server running PHP 8.2. The front end of the site works but now access to the back end gives the error "There has been a critical error on this website. Learn more about troubleshooting WordPress." I need someone to correct the code so that it works correctly. I believe that the issue may be connected to WPBakery To excel in this project, you should be highly experienced in Wordpress, with a deep understanding of PHP, theme and plugin compatibility issues. Your ability to troubleshoot and resolve migration issues will be crucial. I&...

...professional to assist with encryption and compression functionalities within my project. Key Requirements: - Task: The primary task is to implement encryption and decryption, along with compression and decompression, in the existing project. - Data: The encryption and decryption will primarily focus on text data. - Implementation: I specifically require the use of AES, Huffman, Inflate and Deflate, and GZIP mechanisms for the encryption and decryption process. Ideal Skills and Experience: - Extensive Experience: Strong experience with VB6, particularly in encryption, decryption, compression, and decompression. - Specific Knowledge: Proficiency in implementing AES, Huffman, Inflate and Deflate, and GZIP in VB6. - Industry Best Practices: Knowledge of...