Information security in the context of Cryptographic

Cryptography, or cryptology (from Ancient Greek: κρυπτός, romanized: kryptós "hidden, secret"; and γράφειν graphein, "to write", or -λογία -logia, "study", respectively), is the practice and study of techniques for secure communication in the presence of adversarial behavior. More generally, cryptography is about constructing and analyzing protocols that prevent third parties or the public from reading private messages. Modern cryptography exists at the intersection of the disciplines of mathematics, computer science, information security, electrical engineering, digital signal processing, physics, and others. Core concepts related to information security (data confidentiality, data integrity, authentication and non-repudiation) are also central to cryptography. Practical applications of cryptography include electronic commerce, chip-based payment cards, digital currencies, computer passwords and military communications.

Cryptography prior to the modern age was effectively synonymous with encryption, converting readable information (plaintext) to unintelligible nonsense text (ciphertext), which can only be read by reversing the process (decryption). The sender of an encrypted (coded) message shares the decryption (decoding) technique only with the intended recipients to preclude access from adversaries. The cryptography literature often uses the names "Alice" (or "A") for the sender, "Bob" (or "B") for the intended recipient, and "Eve" (or "E") for the eavesdropping adversary. Since the development of rotor cipher machines in World War I and the advent of computers in World War II, cryptography methods have become increasingly complex and their applications more varied.

Computer security (also cybersecurity, digital security, or information technology (IT) security) is a subdiscipline within the field of information security. It focuses on protecting computer software, systems, and networks from threats that can lead to unauthorized information disclosure, theft or damage to hardware, software, or data, as well as from the disruption or misdirection of the services they provide.

The growing significance of computer insecurity reflects the increasing dependence on computer systems, the Internet, and evolving wireless network standards. This reliance has expanded with the proliferation of smart devices, including smartphones, televisions, and other components of the Internet of things (IoT).

Information assurance (IA) is the practice of assuring information and managing risks related to the use, processing, storage, and transmission of information. Information assurance includes protection of the integrity, availability, authenticity, non-repudiation and confidentiality of user data. IA encompasses both digital protections and physical techniques. These methods apply to data in transit, both physical and electronic forms, as well as data at rest. IA is best thought of as a superset of information security (i.e. umbrella term), and as the business outcome of information risk management.

The economy of Hungary is a developing, high-income mixed economy that is the 53rd-largest economy in the world (out of 188 countries measured by IMF) with $265.037 billion annual output, and ranks 41st in the world in terms of GDP per capita measured by purchasing power parity. Hungary has a very high human development index and a skilled labour force, with the 22nd lowest income inequality by Gini index in the world. Hungary has an export-oriented market economy with a heavy emphasis on foreign trade; thus the country is the 35th largest export economy in the world. The country had more than $100 billion of exports in 2015, with a high trade surplus of $9.003 billion, of which 79% went to the European Union (EU) and 21% was extra-EU trade. Hungary's productive capacity is more than 80% privately owned, with 39.1% overall taxation, which funds the country's welfare economy. On the expenditure side, household consumption is the main component of GDP and accounts for 50% of its total, followed by gross fixed capital formation with 22% and government expenditure with 20%.

In 2015 Hungary attracted $119.8 billion in FDI and invested more than $50 billion abroad. As of 2015, the key trading partners of Hungary were Germany, Austria, Romania, Slovakia, France, Italy, Poland and the Czech Republic. Major industries include food processing, pharmaceuticals, motor vehicles, information technology, chemicals, metallurgy, machinery, electrical goods, and tourism (in 2014 Hungary received 12.1 million international tourists). Hungary is the largest electronics producer in Central and Eastern Europe. Electronics manufacturing and research are among the main drivers of innovation and economic growth in the country. In the past 20 years Hungary has also grown into a major center for mobile technology, information security, and related hardware research.The employment rate in the economy was 68.7% in January 2017, while the employment structure shows the characteristics of post-industrial economies. An estimated 63.2% of the employed workforce work in the service sector, industry contributed by 29.7%, while agriculture employed 7.1%. The unemployment rate was 3.8% in September–November 2017, down from 11% during the Great Recession. Hungary is part of the European single market, which represents more than 448 million consumers. Several domestic commercial policies are determined by agreements among European Union members and by EU legislation.

Privacy (UK: /ˈprɪvəsi/, US: /ˈpraɪ-/) is the ability of an individual or group to seclude themselves or information about themselves, and thereby express themselves selectively.

The domain of privacy partially overlaps with security, which can include the concepts of appropriate use and protection of information. Privacy may also take the form of bodily integrity.

In the context of information security, social engineering is the use of psychological influence of people into performing actions or divulging confidential information. It has also been more broadly defined as "any act that influences a person to take an action that may or may not be in their best interests." A type of confidence trick for the purpose of information gathering, fraud, or system access, it differs from a traditional "con" in the sense that it is often one of many steps in a more complex fraud scheme.

Social engineering attacks have been increasing in intensity and number, prompting research into novel detection techniques and cybersecurity educational programs.

A cryptographic protocol is an abstract or concrete protocol that performs a security-related function and applies cryptographic methods, often as sequences of cryptographic primitives. A protocol describes how the algorithms should be used and includes details about data structures and representations, at which point it can be used to implement multiple, interoperable versions of a program.

Cryptographic protocols are widely used for secure application-level data transport. A cryptographic protocol usually incorporates at least some of these aspects:

Analytics is the systematic computational analysis of data or statistics. It is used for the discovery, interpretation, and communication of meaningful patterns in data, which also falls under and directly relates to the umbrella term, data science. Analytics also entails applying data patterns toward effective decision-making. It can be valuable in areas rich with recorded information; analytics relies on the simultaneous application of statistics, computer programming, and operations research to quantify performance.

Organizations may apply analytics to business data to describe, predict, and improve business performance. Specifically, areas within analytics include descriptive analytics, diagnostic analytics, predictive analytics, prescriptive analytics, and cognitive analytics. Analytics may apply to a variety of fields such as marketing, management, finance, online systems, information security, and software services. Since analytics can require extensive computation (see big data), the algorithms and software used for analytics harness the most current methods in computer science, statistics, and mathematics. According to International Data Corporation, global spending on big data and business analytics (BDA) solutions is estimated to reach $215.7 billion in 2021. As per Gartner, the overall analytic platforms software market grew by $25.5 billion in 2020.

A cyberattack (or cyber attack) occurs when there is an unauthorized action against computer infrastructure that compromises the confidentiality, integrity, or availability of its content.

The rising dependence on increasingly complex and interconnected computer systems in most domains of life is the main factor that causes vulnerability to cyberattacks, since virtually all computer systems have bugs that can be exploited by attackers. Although it is impossible or impractical to create a perfectly secure system, there are many defense mechanisms that can make a system more difficult to attack, making information security a field of rapidly increasing importance in the world today.

Authorization or authorisation (see spelling differences), in information security, computer security and IAM (Identity and Access Management), is the function of specifying rights/privileges for accessing resources, in most cases through an access policy, and then deciding whether a particular subject has privilege to access a particular resource. Examples of subjects include human users, computer software and other hardware on the computer. Examples of resources include individual files or an item's data, computer programs, computer devices and functionality provided by computer applications. For example, user accounts for human resources staff are typically configured with authorization for accessing employee records.

Authorization is closely related to access control, which is what enforces the authorization policy by deciding whether access requests to resources from (authenticated) consumers shall be approved (granted) or disapproved (rejected).

Leonardo S.p.A., is an Italian multinational company specialising in aerospace, defence and security. Headquartered in Rome, the company has 180 sites worldwide. It is the 12th largest defence contractor in the world based on 2020 revenues. The company is partially owned by the Italian government, which holds 30.2% of the company's shares and is its largest shareholder.

On 1 January 2016, Leonardo-Finmeccanica became a single industrial company by integrating the activities of its subsidiaries AgustaWestland, Alenia Aermacchi, DRS Technologies, Selex ES, OTO Melara and WASS. The company is organised into five divisions (Helicopters, Aircraft, Aerostructures, Electronics, Cybersecurity). It is also the parent company and corporate centre for the subsidiaries and joint ventures Telespazio, Thales Alenia Space, MBDA and ATR. Leonardo is listed on the Borsa Italiana and is a constituent of the FTSE MIB and Dow Jones Sustainability Indices.

In physical security and information security, access control (AC) is the action of deciding whether a subject should be granted or denied access to an object (for example, a place or a resource). The act of accessing may mean consuming, entering, or using. It is often used interchangeably with authorization, although the authorization may be granted well in advance of the access control decision.

Access control on digital platforms is also termed admission control. The protection of external databases is essential to preserve digital security.

A computer lab is a space where computer services are provided to a defined community. These are typically public libraries and academic institutions. Generally, users must follow a certain user policy to retain access to the computers. This usually consists of rules such as no illegal activity during use or attempts to circumvent any security or content-control software while using the computers.

Computer labs are often subject to time limits in order to allow more people access to use the lab. It is also common for personal login credentials to be required for access. This allows institutions to track the user's activities for any possible fraudulent use. The computers in computer labs are typically equipped with Internet access, scanners, and printers and are typically arranged in rows. This is to give the workstation a similar view to facilitate lecturing or presentations, and also to facilitate small group work.

BAE Systems plc is a British multinational aerospace, arms and information security company, based in London. It is the largest manufacturer in Britain as of 2017. It is the largest defence contractor in Europe and the seventh largest in the world based on applicable 2021 revenues. Its largest operations are in the United Kingdom and in the United States, where its BAE Systems Inc. subsidiary is one of the six largest suppliers to the US Department of Defense. Its next biggest markets are Saudi Arabia, then Australia; other major markets include Canada, Japan, India, Turkey, Qatar, Oman and Sweden. The company was formed on 30 November 1999 by the £7.7 billion purchase of and merger of Marconi Electronic Systems (MES), the defence electronics and naval shipbuilding subsidiary of the General Electric Company plc (GEC), with British Aerospace, an aircraft, munitions and naval systems manufacturer.

BAE Systems is the successor to various aircraft, shipbuilding, armoured vehicle, armaments and defence electronics companies, including the Marconi Company, the first commercial company devoted to the development and use of radio; A.V. Roe and Company, one of the world's first aircraft companies; de Havilland, manufacturer of the Comet, the world's first commercial jet airliner; Hawker Siddeley, manufacturer of the Harrier, the world's first VTOL attack aircraft; British Aircraft Corporation, co-manufacturer of the Concorde supersonic transport; Supermarine, manufacturer of the Spitfire; Yarrow Shipbuilders, builder of the Royal Navy's first destroyers; Fairfield Shipbuilding and Engineering Company, builder of the world's first battlecruiser; and Vickers Shipbuilding and Engineering, builder of the Royal Navy's first submarines.

The Australian Signals Directorate (ASD), formerly the Defence Signals Directorate, is a statutory agency of the Government of Australia responsible for signals intelligence, providing intelligence support to Australian military operations, conducting cyberwarfare and ensuring information security. The ASD is a part of the larger Australian Intelligence Community, and its role within the so-called Five Eyes intelligence-sharing alliance is to monitor signals intelligence in South and East Asia. The Australian Cyber Security Centre (ACSC) is an agency within the ASD.

The unit was established in 1947 by executive order as the Defence Signals Bureau within the Department of Defence, and underwent several name changes until its current name ASD was adopted in 2013. ASD was converted to a statutory body by the Intelligence Services Act 2001. ASD is based in Canberra, at the Defence Department Headquarters at Russell Offices. As of February 2020, Rachel Noble is the Director-General of ASD, replacing Mike Burgess, who was appointed Director-General of Security in September 2019.

Information technology law (IT law), also known as information, communication and technology law (ICT law) or cyberlaw, concerns the juridical regulation of information technology, its possibilities and the consequences of its use, including computing, software coding, artificial intelligence, the internet and virtual worlds. The ICT field of law comprises elements of various branches of law, originating under various acts or statutes of parliaments, the common and continental law and international law. Some important areas it covers are information and data, communication, and information technology, both software and hardware and technical communications technology, including coding and protocols.

Due to the evolving nature of the technology industry, the legal frameworks governing it vary significantly across jurisdictions and change over time. Information technology law primarily governs the dissemination of digital information and software, information security, and cross-border commerce. It intersects with issues in intellectual property, contract law, criminal law, and fundamental rights such as privacy, the right to self-determination and freedom of expression. Information technology law also addresses emerging issues related to data breaches and artificial intelligence.