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Collateral Freedom
Collateral freedom is an anti-censorship strategy that attempts to make it economically prohibitive for censors to block content on the Internet. This is achieved by hosting content on cloud services that are considered by censors to be "too important to block," and then using encryption to prevent censors from identifying requests for censored information that is hosted among other content, forcing censors to either allow access to the censored information or take down entire services. See also * Cute cat theory of digital activism * Domain fronting * Lantern (software) * Refraction networking * Telex (anti-censorship system) Telex is a research anti-censorship system that would allow users to circumvent a censor without alerting the censor to the act of circumvention. It is not ready for real users, but a proof-of-concept mock system exists. As of 2018, Telex has evo ... References {{Reflist Computer security Secure communication Internet censorship ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Internet Censorship
Internet censorship is the legal control or suppression of what can be accessed, published, or viewed on the Internet. Censorship is most often applied to specific internet domains (such as Wikipedia.org) but exceptionally may extend to all Internet resources located outside the jurisdiction of the censoring state. Internet censorship may also put restrictions on what information can be made internet accessible. Organizations providing internet accesssuch as schools and libraries may choose to preclude access to material that they consider undesirable, offensive, age-inappropriate or even illegal, and regard this as ethical behaviour rather than censorship. Individuals and organizations may engage in self-censorship of material they publish, for moral, religious, or business reasons, to conform to societal norms, political views, due to intimidation, or out of fear of legal or other consequences. The extent of Internet censorship varies on a country-to-country basis. While so ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cloud Computing
Cloud computing is the on-demand availability of computer system resources, especially data storage ( cloud storage) and computing power, without direct active management by the user. Large clouds often have functions distributed over multiple locations, each of which is a data center. Cloud computing relies on sharing of resources to achieve coherence and typically uses a "pay as you go" model, which can help in reducing capital expenses but may also lead to unexpected operating expenses for users. Value proposition Advocates of public and hybrid clouds claim that cloud computing allows companies to avoid or minimize up-front IT infrastructure costs. Proponents also claim that cloud computing allows enterprises to get their applications up and running faster, with improved manageability and less maintenance, and that it enables IT teams to more rapidly adjust resources to meet fluctuating and unpredictable demand, providing burst computing capability: high computing p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Encryption
In cryptography, encryption is the process of encoding information. This process converts the original representation of the information, known as plaintext, into an alternative form known as ciphertext. Ideally, only authorized parties can decipher a ciphertext back to plaintext and access the original information. Encryption does not itself prevent interference but denies the intelligible content to a would-be interceptor. For technical reasons, an encryption scheme usually uses a pseudo-random encryption key generated by an algorithm. It is possible to decrypt the message without possessing the key but, for a well-designed encryption scheme, considerable computational resources and skills are required. An authorized recipient can easily decrypt the message with the key provided by the originator to recipients but not to unauthorized users. Historically, various forms of encryption have been used to aid in cryptography. Early encryption techniques were often used in military ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reporters Without Borders
Reporters Without Borders (RWB; french: Reporters sans frontières; RSF) is an international non-profit and non-governmental organization with the stated aim of safeguarding the right to freedom of information. It describes its advocacy as founded on the belief that everyone requires access to the news and information, in line with Article 19 of the Universal Declaration of Human Rights that recognizes the right to receive and share information regardless of frontiers, along with other international rights charters. RSF has consultative status at the United Nations, UNESCO, the Council of Europe, and the International Organisation of the Francophonie. Activities RSF works on the ground in defence of individual journalists at risk and also at the highest levels of government and international forums to defend the right to freedom of expression and information. It provides daily briefings and press releases on threats to media freedom in French, English, Spanish, Portuguese, A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cute Cat Theory Of Digital Activism
The cute cat theory of digital activism is a theory concerning Internet activism, Web censorship, and "cute cats" (a term used for any low-value, but popular online activity) developed by Ethan Zuckerman in 2008. It posits that most people are not interested in activism; instead, they want to use the web for mundane activities, including surfing for pornography and lolcats ("cute cats"). The tools that they develop for that (such as Facebook, Flickr, Blogger, Twitter, and similar platforms) are very useful to social movement activists because they may lack resources to develop dedicated tools themselves. This, in turn, makes the activists more immune to reprisals by governments than if they were using a dedicated activism platform, because shutting down a popular public platform provokes a larger public outcry than shutting down an obscure one. The Internet and censorship Zuckerman states that " Web 1.0 was invented to allow physicists to share research papers. Web 2.0 was c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Domain Fronting
Domain fronting is a technique for Internet censorship circumvention that uses different domain names in different communication layers of an HTTPS connection to discreetly connect to a different target domain than is discernable to third parties monitoring the requests and connections. Due to quirks in security certificates, the redirect systems of the content delivery networks (CDNs) used as 'domain fronts', and the protection provided by HTTPS, censors are typically unable to differentiate circumvention ("domain-fronted") traffic from overt non-fronted traffic for any given domain name. As such they are forced to either allow all traffic to the domain front—including circumvention traffic—or block the domain front entirely, which may result in expensive collateral damage and has been likened to "blocking the rest of the Internet". Domain fronting does not conform to HTTP standards that require the SNI extension and HTTP Host header to contain the same domain. Many large c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lantern (software)
Lantern is a free internet censorship circumvention tool that operates in some of the most extreme censorship environments, such as China, Iran, and Russia. It uses wide variety of protocols and techniques that obfuscate network traffic and/or co-mingle traffic with protocols censors are reluctant to block. It also uses domain fronting. It is not an anonymity tool like Tor. Early versions of Lantern allowed users in countries having free internet access to share their internet connection with those who are in countries where the network is partly blocked. Network connections will be dispersed between multiple computers running Lantern so it will not put undue stress on a single connection or computer. Lantern's CEO and lead developer is Adam Fisk, a former lead engineer of LimeWire and LittleShoot. In early December 2013, Lantern had a surge of Chinese users and could reach from 200 users to 10,000 users in just two weeks. Soon after that, the network was almost blocked by the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Refraction Networking
Refraction networking, also known as decoy routing, is a research anti-censorship approach that would allow users to circumvent a censor without using any individual proxy servers. Instead, it implements proxy functionality at the core of partner networks, such as those of Internet service providers, outside the censored country. These networks would discreetly provide censorship circumvention for "any connection that passes through their networks." This prevents censors from selectively blocking proxy servers and makes censorship more expensive, in a strategy similar to collateral freedom. The approach was independently invented by teams at the University of Michigan, the University of Illinois, and Raytheon BBN Technologies. There are five existing protocols: Telex, TapDance, Cirripede, Curveball, and Rebound. These teams are now working together to develop and deploy refraction networking with support from the U.S. Department of State. See also * Domain fronting Domain fron ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telex (anti-censorship System)
Telex is a research anti-censorship system that would allow users to circumvent a censor without alerting the censor to the act of circumvention. It is not ready for real users, but a proof-of-concept mock system exists. As of 2018, Telex has evolved into refraction networking. Purpose Telex complements services like Tor (anonymity network) by placing ''Telex stations'' in the network infrastructure of free countries. A client can create a TLS tunnel that is indistinguishable from allowed traffic. That way, firewalls in censored countries are neither able to detect nor to block access to specific parts of the Internet, assuming they allow access at all. See also * Domain fronting Domain fronting is a technique for Internet censorship circumvention that uses different domain names in different communication layers of an HTTPS connection to discreetly connect to a different target domain than is discernable to third parties ... References External linksOfficial website ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Computer Security
Computer security, cybersecurity (cyber security), or information technology security (IT security) is the protection of computer systems and networks from attack by malicious actors that may result in unauthorized information disclosure, theft of, or damage to hardware, software, or data, as well as from the disruption or misdirection of the services they provide. The field has become of significance due to the expanded reliance on computer systems, the Internet, and wireless network standards such as Bluetooth and Wi-Fi, and due to the growth of smart devices, including smartphones, televisions, and the various devices that constitute the Internet of things (IoT). Cybersecurity is one of the most significant challenges of the contemporary world, due to both the complexity of information systems and the societies they support. Security is of especially high importance for systems that govern large-scale systems with far-reaching physical effects, such as power distribution, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Secure Communication
Secure communication is when two entities are communicating and do not want a third party to listen in. For this to be the case, the entities need to communicate in a way that is unsusceptible to eavesdropping or interception. Secure communication includes means by which people can share information with varying degrees of certainty that third parties cannot intercept what is said. Other than spoken face-to-face communication with no possible eavesdropper, it is probably safe to say that no communication is guaranteed to be secure in this sense, although practical obstacles such as legislation, resources, technical issues (interception and encryption), and the sheer volume of communication serve to limit surveillance. With many communications taking place over long distance and mediated by technology, and increasing awareness of the importance of interception issues, technology and its compromise are at the heart of this debate. For this reason, this article focuses on communicatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
