uncleflo
Registered since September 28th, 2017
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Tag selected: encryption.
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Setting up an SSL secured Webserver with CentOS
Saved by uncleflo on May 30th, 2018.
This guide will explain how to set up a site over https. The tutorial uses a self signed key so will work well for a personal website or testing purposes. This is provided as is so proceed at your own risk and take backups! For an SSL encrypted web server you will need a few things. Depending on your install you may or may not have OpenSSL and mod_ssl, Apache's interface to OpenSSL.
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Buy and Sell Bitcoins, Bitcoin Chart on Bitcoin.de
Saved by uncleflo on February 11th, 2018.
Largest Bitcoin marketplace in Europe with over 700,000 customers. First and so far only Bitcoin marketplace worldwide trading with audited Bitcoin customer portfolios by a publically accredited auditing company (last audit as per 04/09/2017, next audit scheduled for september 2018). Over 98% of the Bitcoin customer portfolios are stored offline. All Bitcoin.de servers are located in secure data processing centers in Germany. Regular security audits by external companies. Advantage of a market place such as Bitcoin.de: your funds always remain on your own bank account covered by statutory deposit insurance. Most Bitcoin exchanges on the contrary hold your funds as a rule unsecured on the company bank account of the exchange operator with the risk of a total loss should the exchange operator become insolvent. Other advantages are the Bug Bounty program, encrypted email transmission and much more
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Zero Knowledge Range Proof
Saved by uncleflo on December 28th, 2017.
ING's zero knowledge range-proof precompiled contract for the go-ethereum client. One fundamental concern in blockchain technology is the confidentiality of the data on the blockchain. In order to reach consensus between all independent nodes in a blockchain network, each node must be able to validate all transactions (for instance against double-spent), in most cases this means that the content of the transactions is visible to all nodes. Fortunately several solutions exist that preserve confidentiality on a blockchain (private transactions, HyperLedger Fabric Channels, Payment Channels, Homomorphic encryption, transaction-mixing, zero knowledge proofs etc.). This article describes the implementation of a zero-knowledge range-proof in Ethereum. The zero knowledge range proof allows the blockchain network to validate that a secret number is within known limits without disclosing the secret number. This is useful to reach consensus in a variety of use cases: Validate that someone's age is between 18 and 65 without disclosing the age; Validate that someone is in Europe without disclosing the exact location; Validate that a payment-amount is positive without disclosing the amount (as done by Monero). The zero-knowledge range-proof requires a commitment on a number by a trusted party (for instance a government committing on someone's age), an Ethereum-user can use this commitment to generate a range-proof. The Ethereum network will verify this proof.
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Password security in modern PHP
Saved by uncleflo on December 27th, 2017.
Discover how PHP 5.5 enables more-secure password handling. PHP, from the beginning, was a programming language made for building websites. That idea is in PHP's core far deeper than in any other programming language — perhaps one reason why PHP became and remains so popular for building web applications. But when PHP was first crafted in the mid-1990s, the term web application didn't even exist yet. Password protection, then, wasn't one of the features that the PHP creators devoted resources to. After all, you didn't need to worry about passwords when you used PHP just to put a site-visit counter or a date-modified stamp on your web page. But 20 years have passed, and now it's almost unthinkable to create a web application that doesn't involve password-protected user accounts. It's of the utmost importance that PHP programmers safeguard account passwords by using the latest and most secure methods. To that end, PHP 5.5 added a new password-hashing library created by Anthony Ferrara (@ircmaxell). The library makes several functions available that you can use to handle one-way password encryption with current best-practice methods. Other features anticipate future security needs so that as computers and hackers get more advanced, you can stay a step ahead of the bad guys. This article gives you an in-depth introduction to the library's functions and how to make the best use of them.
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php-encryption - Simple Encryption in PHP.
Saved by uncleflo on July 10th, 2017.
This is a library for encrypting data with a key or password in PHP. It requires PHP 5.4 or newer. The current version is v2.0.0, which is expected to remain stable and supported by its authors with security and bugfixes until at least January 1st, 2019. The library is a joint effort between Taylor Hornby and Scott Arciszewski as well as numerous open-source contributors. What separates this library from other PHP encryption libraries is, firstly, that it is secure. The authors used to encounter insecure PHP encryption code on a daily basis, so they created this library to bring more security to the ecosystem. Secondly, this library is "difficult to misuse." Like libsodium, its API is designed to be easy to use in a secure way and hard to use in an insecure way.
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The Sodium crypto library (libsodium)
Saved by uncleflo on July 10th, 2017.
Sodium is a modern, easy-to-use software library for encryption, decryption, signatures, password hashing and more. It is a portable, cross-compilable, installable, packageable fork of NaCl, with a compatible API, and an extended API to improve usability even further. Its goal is to provide all of the core operations needed to build higher-level cryptographic tools. Sodium supports a variety of compilers and operating systems, including Windows (with MinGW or Visual Studio, x86 and x86_64), iOS and Android. The design choices emphasize security, and "magic constants" have clear rationales. And despite the emphasis on high security, primitives are faster across-the-board than most implementations of the NIST standards.
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Adobe Sign
Saved by uncleflo on March 31st, 2017.
There’s a better way to sign. Whatever you need to get signed, make it a faster, better experience with e-signatures. Adobe Sign is the world’s top e-sign solution. And it’s as easy to deploy as it is to use. The world trusts e-signatures by Adobe Sign. Every time an employee slows to print a document or search through emails — business slows too. The fastest workflows are all digital, end to end. Bring them to every department, every process, with Adobe Sign.
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A Guide to Install and Use ZFS on CentOS 7
Saved by uncleflo on October 31st, 2016.
ZFS, short form of Zettabyte Filesystem is an advanced and highly scalable filesystem. It was originally developed by Sun Microsystems and is now part of the OpenZFS project. With so many filesystems available on Linux, it is quite natural to ask what is special about ZFS. Unlike other filesystem, it is not just a filesystem but a logical volume manager as well. Some of the features of ZFS that make it popular are: Data Integrity - data consistency and integrity are ensured through copy-on-write and checksum techniques; Pooling of storage space - available storage drives can be put together into a single pool called zpool; Software RAID - Setting up a raidz array is as simple as issuing a single command; Inbuilt volume manager - ZFS acts as a volume manager as well; Snaphots, clones, compression - these are some of the advanced features that ZFS provides.
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The Diceware Passphrase Home Page
Saved by uncleflo on October 17th, 2016.
This page offers a better way to create a strong, yet easy to remember passphrase for use with encryption and security programs. Weak passwords and passphrases are one of the most common flaws in computer security. Take a few minutes and learn how to do it right. The information presented here can be used by anyone. No background in cryptography or mathematics is required. Just follow the simple steps below. If you'd like to know even more about passphrases, see the Frequently Asked Questions (FAQ), and please checkout the Diceware Security Blog, for commentary on the latest developments in computer security and shared secret authentication.
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AS3 Cryptography Library
Saved by uncleflo on June 10th, 2015.
As3 Crypto is a cryptography library written in Actionscript 3 that provides several common algorithms. This version also introduces a TLS engine (TLS is commonly known as SSL.)
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Cloud Antivirus, Endpoint, UTM, Encryption, Mobile, DLP, Server, Web, Wireless Security, Network Storage and Next-Gen Firewall Solutions | Sophos Data Protection for Business
Saved by uncleflo on April 2nd, 2015.
IT security products have become as complex as the networks they’re trying to secure. At Sophos we know that the solution to complexity is not more complexity. We tackle security challenges with clarity and confidence, knowing that simple security is better security.
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StartSSL™ Certificates & Public Key Infrastructure - StartSSL™ Home
Saved by uncleflo on September 26th, 2013.
StartSSL™ is the trade mark of the StartCom® Certification Authority - a leader of the digital certification industry. We provide you with everything from free low-assurance SSL certificates up to the most advanced PKI and security solutions for your business and personal use.
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SSL/TLS Strong Encryption: FAQ - Apache HTTP Server
Saved by uncleflo on September 12th, 2013.
How do I create a self-signed SSL Certificate for testing purposes? Make sure OpenSSL is installed and in your PATH. Run the following command, to create server.key and server.crt files.
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HTTPS Everywhere | Electronic Frontier Foundation
Saved by uncleflo on September 5th, 2013.
HTTPS Everywhere is a Firefox and Chrome extension that encrypts your communications with many major websites, making your browsing more secure. Encrypt the web: Install HTTPS Everywhere today. HTTPS Everywhere is produced as a collaboration between The Tor Project and the Electronic Frontier Foundation. Many sites on the web offer some limited support for encryption over HTTPS, but make it difficult to use. For instance, they may default to unencrypted HTTP, or fill encrypted pages with links that go back to the unencrypted site. The HTTPS Everywhere extension fixes these problems by using a clever technology to rewrite requests to these sites to HTTPS.
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NSFW: Reddit Women Are Getting Naked for Bitcoins
Saved by uncleflo on May 19th, 2013.
The future of sexuality is here, and boy it's predictably sad and weird: girls stripping for Bitcoin tips, a virtual currency that's not really worth anything. Start mining yer coins, boys! Welcome to GirlsGoneBitcoin. Of course, as FWD's Katie Notopoulos reports, this is taking place on Reddit. Where else would the pretense of paying via super-encrypted pseudo-currency be a turn on.
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Transactions - Bitcoin
Saved by uncleflo on May 16th, 2013.
A transaction is a signed section of data that is broadcast to the network and collected into blocks. It typically references previous transaction(s) and dedicates a certain number of bitcoins from it to one or more new public key(s) (Bitcoin address). It is not encrypted (nothing in Bitcoin is encrypted). A block chain browser is a site where every transaction included within the block chain can be viewed. This is useful for seeing the technical details of transaction in action, and for payment verification purposes.
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PHP Encrypt/Decrypt: Simple class to encrypt url data | 99Points
Saved by uncleflo on February 4th, 2013.
Encryption is useful where critical data is being transferred in url. I have found a simple and secure encryption class with some changes to make it fit for new users. You can use it in Codeigniter websites as well. Just copy it in application/libraries directory and use it in other libraries style. Here is the code for encryption class.
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Professional VPN-service, PPTP, OpenVPN, DoubleVPN | VPN ...
Saved by uncleflo on July 18th, 2011.
Each of these types has own features thus it's your choice what type of vpn you wish to use. Also it's mandatory that you have a regular internet connection before you will start to use this service. Each of these vpn's enforcing encryption of internet traffic which makes virtually impossible decoding and analysis of data transmited through internet. While traffic flows through one ore more (Double VPN) vpn servers for a destination host (an internet site, a forum and etc.) your real IP address will be presented by IP address of a last vpn server which passes your traffic.
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DoubleVPN.com
Saved by uncleflo on July 18th, 2011.
Welcome to the site of service DoubleVPN.com! DoubleVPN.com — is one of the most open VPN services. We don't have any secrets except of your traffic secrecy and we can prove that. You get exactly for what you pay – anonymity and security. You may wonder why our service is so special. We have a bunch of facts to prove the high quality of our service. We have no data which can compromise our clients. We don't log any clients' activities on our servers. That may sound unreliable but we are ready to prove that and give you direct access to any of our servers for you to be convinced of your security.
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getVPN - Buy OpenVPN or PPTP VPN online
Saved by uncleflo on July 18th, 2011.
Tired of nonworking and slow proxies? It's time to start using getVPN service. GetVPN service benefits: Unblock Skype. Access blocked websites. 100% availability - no need to check regularly (as proxy). Fast speed. 100% anonymity. No server logs. 100% content encryption and compression. OpenVPN or PPTP VPN secure VPN service. Possibility to use dedicated IP address. Anonymous Virtual Private Network (VPN) is the best shield for you daily surfing and work in World Wide Web. VPN is the most secure kind of protection that provides you extreme anonymity.
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Configuring OpenVPN with Ubuntu 10.04
Saved by uncleflo on November 1st, 2010.
We’re often asked the simplest way to configure Ubuntu ‘Lucid Lynx’ with OverPlay’s High-Speed VPN servers. It’s not necessarily immediately apparent what the process to do this is, so we’ve put together this handy blog guide to get up and running with OverPlay.
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High speed VPN servers - Overplay.net
Saved by uncleflo on November 1st, 2010.
High speed US, UK, Irish, Canadian and Swedish VPN servers... What are they? Simply put, Overplay provides a service which can encrypt your internet traffic via one of our high speed, reliable VPN servers - securing everything you sent from interception by your ISP or WiFi provider, and making it appear to websites which you visit as if you're connected directly via our international servers. In effect you are changing your IP address for one of our US, UK, Irish, Canadian, or Swedish IP Addresses! All this is transparent to you, you simply choose a location with our easy-to-install VPN software, open your browser as usual, and enjoy high speed, secured internet access via our international servers
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Internet Privacy and Identity Protection by IdentityCloaker.com!
Saved by uncleflo on September 2nd, 2010.
In short, Identity Cloaker could be defined as an "Internet Privacy Protection Service". Its main goal is to protect your privacy by encrypting the data sent over the Internet in the most vulnerable part of the data transmission path, and by hiding your physical location and IP address from the prying eyes. There are, however, more advantages... Do you want to see a website that is normally blocked by your Internet Service Provider (ISP) or network administrator, or that can not be viewed from your country? Do you manage Internet marketing campaigns targeted to specific geographical locations through IP address based content delivery and want to see the advertisements exactly as your potential customers in different countries see them? Identity Cloaker can help you with that too.
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