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NordLocker
NordLocker is a file encryption software integrated with end-to-end encrypted cloud storage. It is available on Windows and macOS. NordLocker is developed by Nord Security, a company behind the NordVPN virtual private network, and is based in the UK and the Netherlands. NordLocker uses a freemium business model, where users are offered a free account with unlimited local file encryption and a set amount of cloud storage with sync and backup features. More cloud storage is available via a paid subscription. History In May 2019, NordVPN announced the upcoming launch of NordLocker, “an app with a zero-knowledge encryption process”. Although the initial estimated time of arrival was summer 2019, the actual launch took place in November. The app was launched as a local file encryption tool with secure sharing. Users were able to encrypt up to 5 GB of data for free or pay for unlimited encryption. In March 2020, NordLocker announced newly implemented cloud sharing integratio ...
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NordVPN
NordVPN is a VPN service provided by company Nordsec Ltd with applications for Microsoft Windows, macOS, Linux, Android, iOS, and Android TV. Manual setup is available for wireless routers, NAS devices, and other platforms. NordVPN is developed by Nord Security (Nordsec Ltd), a company that creates cybersecurity software and was initially supported by the Lithuanian startup accelerator and business incubator Tesonet. NordVPN operates under the jurisdiction of Panama, as the country has no mandatory data retention laws and does not participate in the Five Eyes or Fourteen Eyes intelligence sharing alliances. Its offices are located in Lithuania, the United Kingdom, Panama and the Netherlands. History NordVPN was established in 2012 by a group of childhood friends which included Tomas Okmanas. Late in May 2016, it presented an Android app, followed by an iOS app in June the same year. In October 2017, it launched a browser extension for Google Chrome. In June 2018, the se ...
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Nord Security
NordVPN is a VPN service provided by company Nordsec Ltd with applications for Microsoft Windows, macOS, Linux, Android, iOS, and Android TV. Manual setup is available for wireless routers, NAS devices, and other platforms. NordVPN is developed by Nord Security (Nordsec Ltd), a company that creates cybersecurity software and was initially supported by the Lithuanian startup accelerator and business incubator Tesonet. NordVPN operates under the jurisdiction of Panama, as the country has no mandatory data retention laws and does not participate in the Five Eyes or Fourteen Eyes intelligence sharing alliances. Its offices are located in Lithuania, the United Kingdom, Panama and the Netherlands. History NordVPN was established in 2012 by a group of childhood friends which included Tomas Okmanas. Late in May 2016, it presented an Android app, followed by an iOS app in June the same year. In October 2017, it launched a browser extension for Google Chrome. In June 2018, the se ...
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Encryption Software
Encryption software is software that uses cryptography to prevent unauthorized access to digital information. Cryptography is used to protect digital information on computers as well as the digital information that is sent to other computers over the Internet. Classification There are many software products which provide encryption. Software encryption uses a cipher to obscure the content into ciphertext. One way to classify this type of software is the type of cipher used. Ciphers can be divided into two categories: public key ciphers (also known as asymmetric ciphers), and symmetric key ciphers. Encryption software can be based on either public key or symmetric key encryption. Another way to classify software encryption is to categorize its purpose. Using this approach, software encryption may be classified into software which encrypts "data in transit" and software which encrypts " data at rest". Data in transit generally uses public key ciphers, and data at rest generally uses ...
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Dropbox (service)
Dropbox is a file hosting service operated by the American company Dropbox, Inc., headquartered in San Francisco, California, U.S. that offers cloud storage, file synchronization, personal cloud, and client software. Dropbox was founded in 2007 by MIT students Drew Houston and Arash Ferdowsi as a startup company, with initial funding from seed accelerator Y Combinator. Dropbox has experienced criticism and generated controversy for issues including security breaches and privacy concerns. Dropbox has been blocked in China since 2014. Concept Dropbox brings files together in one central place by creating a special folder on the user's computer. The contents of these folders are synchronized to Dropbox's servers and to other computers and devices where the user has installed Dropbox, keeping the same files up-to-date on all devices. Dropbox uses a freemium business model, where users are offered a free account with set storage size, with paid subscriptions available that off ...
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PCMagazine
''Personal Computer Magazine'', ''PCMagazine'' or ''PCM'' is a Dutch monthly magazine about personal computers The first edition of ''PCM'' was issued in October 1983 by VNU Business Publications. Since November 2007 ''PCM'' is published by HUB Uitgevers. The magazine appears in a circulation of roughly 50.000 copies per month. The magazine is aimed at the beginning hobbyist and home user as well as experienced and business users. Generally the magazine covers Windows Windows is a group of several proprietary graphical operating system families developed and marketed by Microsoft. Each family caters to a certain sector of the computing industry. For example, Windows NT for consumers, Windows Server for serv ... more than other platforms. See also *'' Computer!Totaal'' External links * 1983 establishments in the Netherlands Monthly magazines published in the Netherlands Computer magazines published in the Netherlands Magazines established in 1983 Magazines publishe ...
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Software Monetization
Software monetization is a strategy employed by software companies and device vendors to maximize the profitability of their software. The software licensing component of this strategy enables software companies and device vendors to simultaneously protect their applications and embedded software from unauthorized copying, distribution, and use, and capture new revenue streams through creative pricing and packaging models. Whether a software application is hosted in the cloud, embedded in hardware, or installed on premises, software monetization solutions can help businesses extract the most value from their software. Another way to achieve software monetization is through paid advertising and the various compensation methods available to software publishers. Pay-per-install (PPI), for example, generates revenue by bundling third-party applications, also known as adware, with either freeware or shareware applications. History The exact origin of the term 'software monetization' ...
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Libsodium
NaCl (pronounced "salt") is an abbreviation for "Networking and Cryptography library", a public domain "...high-speed software library for network communication, encryption, decryption, signatures, etc". NaCl was created by the mathematician and programmer Daniel J. Bernstein who is best known for the creation of qmail and Curve25519. The core team also includes Tanja Lange and Peter Schwabe. The main goal while creating NaCl, according to the paper, was to "avoid various types of cryptographic disasters suffered by previous cryptographic libraries".https://cr.yp.to/highspeed/coolnacl-20120725.pdf "The security impact of a new cryptographic library" Daniel J. Bernstein, Tanja Lange, Peter Schwabe Basic functions Public-key cryptography * Signatures using Ed25519. * Key agreement using X25519. Secret-key cryptography * Authenticated encryption using Salsa20-Poly1305. * Encryption using Salsa20 or AES. * Authentication using HMAC-SHA-512-256. * One-time authentication u ...
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Poly1305
Poly1305 is a universal hash family designed by Daniel J. Bernstein for use in cryptography. As with any universal hash family, Poly1305 can be used as a one-time message authentication code to authenticate a single message using a key shared between sender and recipient, like a one-time pad can be used to conceal the content of a single message using a key shared between sender and recipient. Originally Poly1305 was proposed as part of Poly1305-AES, a Carter–Wegman authenticator that combines the Poly1305 hash with AES-128 to authenticate many messages using a single short key and distinct message numbers. Poly1305 was later applied with a single-use key generated for each message using XSalsa20 in the NaCl crypto_secretbox_xsalsa20poly1305 authenticated cipher, and then using ChaCha in the ChaCha20-Poly1305 authenticated cipher deployed in TLS on the internet. Description Definition of Poly1305 Poly1305 takes a 16-byte secret key r and an L-byte message m and returns ...
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EdDSA
In public-key cryptography, Edwards-curve Digital Signature Algorithm (EdDSA) is a digital signature scheme using a variant of Schnorr signature based on twisted Edwards curves. It is designed to be faster than existing digital signature schemes without sacrificing security. It was developed by a team including Daniel J. Bernstein, Niels Duif, Tanja Lange, Peter Schwabe, and Bo-Yin Yang. The reference implementation is public domain software. Summary The following is a simplified description of EdDSA, ignoring details of encoding integers and curve points as bit strings; the full details are in the papers and RFC. An EdDSA signature scheme is a choice: * of finite field \mathbb_q over odd prime power q; * of elliptic curve E over \mathbb_q whose group E(\mathbb_q) of \mathbb_q-rational points has order \#E(\mathbb_q) = 2^c \ell, where \ell is a large prime and 2^c is called the cofactor; * of base point B \in E(\mathbb_q) with order \ell; and * of cryptographic hash functi ...
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XChaCha
Salsa20 and the closely related ChaCha are stream ciphers developed by Daniel J. Bernstein. Salsa20, the original cipher, was designed in 2005, then later submitted to the eSTREAM European Union cryptographic validation process by Bernstein. ChaCha is a modification of Salsa20 published in 2008. It uses a new round function that increases diffusion and increases performance on some architectures. Both ciphers are built on a pseudorandom function based on add-rotate-XOR (ARX) operations — 32-bit addition, bitwise addition (XOR) and rotation operations. The core function maps a 256- bit key, a 64-bit nonce, and a 64-bit counter to a 512-bit block of the key stream (a Salsa version with a 128-bit key also exists). This gives Salsa20 and ChaCha the unusual advantage that the user can efficiently seek to any position in the key stream in constant time. Salsa20 offers speeds of around 4–14 cycles per byte in software on modern x86 processors, and reasonable hardware performance. ...
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Elliptic-curve Cryptography
Elliptic-curve cryptography (ECC) is an approach to public-key cryptography based on the algebraic structure of elliptic curves over finite fields. ECC allows smaller keys compared to non-EC cryptography (based on plain Galois fields) to provide equivalent security.Commercial National Security Algorithm Suite and Quantum Computing FAQ
U.S. National Security Agency, January 2016.
Elliptic curves are applicable for , s,
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Argon2
Argon2 is a key derivation function that was selected as the winner of the 2015 Password Hashing Competition. It was designed by Alex Biryukov, Daniel Dinu, and Dmitry Khovratovich from the University of Luxembourg. The reference implementation of Argon2 is released under a Creative Commons CC0 license (i.e. public domain) or the Apache License 2.0, and provides three related versions: *Argon2d maximizes resistance to GPU cracking attacks. It accesses the memory array in a password dependent order, which reduces the possibility of time–memory trade-off (TMTO) attacks, but introduces possible side-channel attacks. *Argon2i is optimized to resist side-channel attacks. It accesses the memory array in a password independent order. *Argon2id is a hybrid version. It follows the Argon2i approach for the first half pass over memory and the Argon2d approach for subsequent passes. The RFC recommends using Argon2id if you do not know the difference between the types or you consider side ...
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