Tech Blog: Sharing on the Go..

Securing Your Data with AES Encryption: A Deep Dive into Advanced Encryption Standard Introduction In today's interconnected digital landscape, the need for robust data protection has never been more critical. Cybersecurity threats loom large, making it imperative to employ cutting-edge encryption techniques. Among the forefront of encryption standards stands the Advanced Encryption Standard (AES). In this blog post, we will delve into the intricacies of AES encryption, understanding its significance, implementation, and why it's a cornerstone in safeguarding sensitive information.  Understanding AES Encryption  What is AES Encryption? AES, or Advanced Encryption Standard, is a symmetric encryption algorithm adopted by the U.S. government to secure sensitive information. Established in 2001, AES has become the de facto standard for encrypting data globally. Its strength lies in its ability to provide a high level of security while maintaining efficiency in terms of processing ...

The SHA (Secure Hash Algorithm) family  Consists of cryptographic hash functions designed by the National Security Agency (NSA) and published by the National Institute of Standards and Technology (NIST). These hash functions are widely used for various security applications, including data integrity verification, digital signatures, and password storage. The SHA family includes several variants with different hash sizes, providing flexibility for different security requirements. Brief Info  Hashing is the process of converting data, such as text, numbers, files, or anything else, into a fixed-length string of letters and numbers, called a hash value. Hashing is used for security, data storage, and fast access to elements. A special algorithm, called a hash function, is used to generate the hash values from the data. Different hash functions have different properties and applications. For example, some hash functions are designed to be one-way, meaning that it is very hard to r...

the story of Hashing Once upon a time, in the realm of computer science, there existed a powerful technique known as hashing. It was a magical process that transformed data, regardless of its size, into a fixed-size string of characters or bytes, using a mystical mathematical algorithm called a hash function. Hashing held many secrets and powers, each revealed through its key points, 1. Deterministic Nature    Hashing was a predictable sorcery. No matter how many times you summoned it, for a given input, the hash function would conjure the same output, unfailingly. 2. Fixed Size Output    Regardless of the complexity of the data, the hash function bestowed upon it a fixed-size cloak of characters or bytes. Whether it was a small message or a grand tome, the output remained constant. 3. One-Way Enchantment    Hashing wielded a magic that mortals envied. It possessed the power to encrypt data in a one-way spell. Once transformed, it was near impossible to rev...

Hashing is a process of converting data (usually of arbitrary size) into a fixed-size string of characters or bytes using a mathematical algorithm called a hash function. The output of a hash function is commonly referred to as a hash value or hash code. So, why do we use hashing, let's check out some key points about hashing as below Deterministic Hashing is a deterministic process, meaning that for a given input, the hash function will always produce the same output. Fixed Size Output Regardless of the size of the input data, the output of a hash function has a fixed size. For example, the SHA-256 hash function produces a 256-bit (32-byte) hash value. One-Way Function Hash functions are designed to be one-way functions, meaning that it should be computationally infeasible to reverse the process and determine the original input from the hash value. Collision Resistance A good hash function minimizes the likelihood of producing the same hash value for different inputs. This propert...

Imagine you have a super-secret diary full of your favorite stories and secrets. That's your data. Now, what if you want to make sure no one else can peek inside? That's your privacy. That's where encryption and decryption come in! It's like having a magical lock and key for your digital treasures. That's your mechanism.  Encryption : The Magical Lock 🧙‍♂️ Okay, so you want to send a message or keep something safe. Imagine turning your message into a secret code that only you and your friend can understand. That's encryption! It's like writing in a secret language that looks like gibberish to anyone who doesn't have the special key. In computer land, encryption takes your normal messages and uses a magical algorithm to turn them into a secret code. So, even if someone tries to sneak a peek, all they see is a bunch of jumbled-up letters and numbers! Decryption : The Awesome Key 🔑 Now, let's say your friend receives your secret message. H...

Introduction In the vast world of data reporting, two tools stand out: Power BI and SSRS. While they share a common goal of helping businesses make sense of their data, they have distinct features tailored to different needs. Let's dive into the basics in a way that's easy to understand. Power BI: The Visual Storyteller Imagine Power BI as a skilled storyteller who paints vivid pictures with your data. It transforms raw information into interactive, eye-catching reports and dashboards. It's like creating a dynamic digital storybook where anyone, even those without tech superpowers, can craft their tales. Power BI loves the cloud and plays well with other Microsoft tools, making it a team player in the world of modern data visualization. SSRS: The Reliable Reporter On the other side, we have SSRS, a reliable reporter akin to a seasoned news anchor. It excels in delivering traditional, pixel perfect reports that are precise and print friendly. SSRS is deeply connected with Mi...

Introduction In our quest for heightened security and efficiency, we delve into transforming Windows 2-3 tier architectures with the aid of Microsoft's Internet Information Services (IIS). Let's explore how this conversion can fortify your web applications. Unveiling the Transformation Within the realm of web application management, the shift from a two-tier to a three-tier architecture is pivotal. With IIS as our cornerstone, we embark on a journey to enhance security layers and streamline application performance. The Process Unveiled Gone are the days of cumbersome web portals and convoluted setups. By harnessing IIS, we empower your applications with direct database calls hosted on the app server. This approach not only simplifies the user interface but also fortifies security by erecting a robust web layer. Security at the Forefront Central to our methodology is the reinforcement of security measures. By tweaking communication ports and implementing SSL offloading, we erect...

   Windows 2-3 Tier Architecture Conversion with IIS In a previous blog post, we explored the transformation of legacy two-tier architecture applications into three-tier architecture using Oracle's OHS server. Today, we'll delve into achieving the same result using Microsoft's IIS server.  Introduction Unlocking Security Layers with IIS: If you've been managing IIS-based applications and wish to bolster their security by introducing a third layer for the web, we have a solution for you. This involves IIS serving as a Reverse Proxy, akin to the role OHS played in our previous example.   Process There is no need to create a Web Portal containing only wrapper calls to the APP server where all your business logic lies in the form of API based application. You can create a robust application with direct DB calls hosted on the APP server and then showcase the same application without any coding expertise to a Web Layer. And then every end user will be using the web interf...

Introduction In the realm of computing, a groundbreaking paradigm shift is underway—ushering in an era where the principles of quantum mechanics redefine the boundaries of computational power. Quantum computing, harnessing the peculiarities of quantum bits (qubits), promises unparalleled capabilities, challenging the norms of classical computation. Key Concepts 1. Qubits and Superposition     Classical vs. Quantum: Classical bits are either 0 or 1, while qubits exist in a superposition of both 0 and 1 simultaneously.     Quantum Advantage: Superposition empowers quantum computers to process vast amounts of information concurrently, a feat unattainable in classical systems. 2. Entanglement     Quantum Interdependence: Entangled qubits exhibit a unique relationship, irrespective of distance. This phenomenon enables the creation of intricate quantum states. 3. Quantum Gates and Circuits     Building Quantum Logic: Quantum gates manipulate qubit state...

In the vast realm of digital storage, understanding the units that quantify data is crucial. Bytes, the building blocks of digital information, come in various sizes, from the humble bit to the colossal yottabyte.  So, Let's embark on a journey through these storage units and unveil the relationships that define the digital landscape as in our later life, these sizes will matter like money anyhow and there will be groups competing for them. Bits and Bytes: The Foundations:  Bit (b):  The binary cornerstone, a bit, holds the value of 0 or 1. Byte (B): A byte, comprising 8 bits, is the fundamental unit of storage, representing a character in text. Kilobytes to Gigabytes: Scaling Up: Kilobyte (KB): 1 KB = 1,024 bytes. Perfect for small files and documents. Megabyte (MB): 1 MB = 1,024 KB. Used to measure the size of larger files, photos, and short videos. Gigabyte (GB): 1 GB = 1,024 MB. Commonly used for so...

SSL offloading is like having a dedicated assistant handle the complex task of securing communication on a website, so the main server can focus on delivering content quickly. Imagine your data is like a secret message, and SSL is the encryption that protects it during transmission. Usually, when you visit a secure website (starting with "https://"), there's a back-and-forth process to make sure your data is safe. SSL offloading simplifies this process. Instead of the main server doing all the encryption and decryption work, a special device takes on this responsibility. Think of the SSL offloading device as a security checkpoint. When you connect to a website, it handles the secret handshake and keeps your data safe during its journey. Once your data arrives, it communicates with the main server in a language everyone understands, making the process faster and more efficient. The benefits? It's like having a superhero assistant: Efficient Use of Resources: The main s...

विश्वभर में डिजिटल युग में, जहां वेबसाइटें व्यापारों की पहचान होती हैं, उन्हें सुरक्षित रखना अत्यंत महत्वपूर्ण है। SSL ऑफ़लोडिंग, जिसे अक्सर SSL टर्मिनेशन कहा जाता है, एक ऐसी प्रक्रिया है जो वेब सर्वर से आलग करके एक विशेष यंत्र या सर्वर, जिसे अक्सर लोड बैलेंसर या SSL टर्मिनेटर कहा जाता है, को SSL/TLS (सुरक्षित सॉकेट्स लेयर/ट्रांसपोर्ट लेयर सुरक्षा) एन्क्रिप्शन और डिक्रिप्शन के कार्यों से संबोधित करता है। SSL ऑफ़लोडिंग का सीधा अर्थ: एन्क्रिप्शन और डिक्रिप्शन: SSL/TLS एक प्रोटोकॉल है जिससे किसी भी वेब साइट या सेवा के साथ सुरक्षित बातचीत होती है। जब आप किसी सुरक्षित वेबसाइट को खोलते हैं, तो यह डेटा को एन्क्रिप्ट करता है ताकि वह ट्रांजिट के दौरान सुरक्षित रहे। SSL/TLS हैंडशेक: डेटा ट्रांसफर शुरू होने से पहले एक SSL/TLS हैंडशेक होता है जिसमें क्लाइंट और सर्वर के बीच एन्क्रिप्शन के पैरामीटर्स की चर्चा होती है, जिससे एक सुरक्षित कनेक्शन स्थापित होता है। SSL ऑफ़लोडिंग प्रक्रिया:  जब SSL ऑफ़लोडिंग लागू होता है, तो SSL/TLS हैंडशेक और एन्क्रिप्ट/डिक्रिप्ट कार्यों को वेब सर्वर से हटा दिया जाता...

डिजिटल दुनिया में, जहां वेबसाइटें व्यापारों के स्टोरफ्रंट होती हैं, उनकी सुरक्षा सुनिश्चित करना प्रमुख है। WAF, या वेब एप्लिकेशन फ़ायरवॉल, इस रक्षा  में आपका सर्वोपरि साथी और मददगार  है। आइए इस अद्वितीय रक्षक को समझें और देखें कैसे यह आपकी वेब एप्लिकेशन्स को साइबर खतरों से सुरक्षित रखता है।  WAF क्या है? WAF, या वेब एप्लिकेशन फ़ायरवॉल, आपकी वेबसाइट के लिए एक आत्मरक्षा कर्ता की तरह है। इसका मुख्य कार्य आपकी वेब एप्लिकेशन्स को बुरे कारकों से बचाना और संभावित हमलों को रोकना है, जो आपकी साइट को हानि पहुँचा सकते हैं।  WAF आपकी वेबसाइट को कैसे सुरक्षित रखता है: ·          सामान्य हमलों का निषेध : ·          - अगर आपकी वेबसाइट को आप एक किला समझें तो WAF द्वारपाल की भूमिका निभाता हुआ नज़र आएगा आपको । यह ऐसे हमलों को रोकता है जैसे चालाक SQL इंजेक्शन और क्षतिपूर्ति योजना , सुनिश्चित करने के लिए कि केवल अच्छी सामग्री ही आपकी वेबसाइट तक पहुंच सके और आपक...