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Key Escrow
Key escrow (also known as a "fair" cryptosystem) is an arrangement in which the keys needed to decrypt encrypted data are held in escrow so that, under certain circumstances, an authorized third party may gain access to those keys. These third parties may include businesses, who may want access to employees' secure business-related communications, or governments, who may wish to be able to view the contents of encrypted communications (also known as ''exceptional access''). The technical problem is a largely structural one. Access to protected information must be provided ''only'' to the intended recipient and at least one third party. The third party should be permitted access only under carefully controlled conditions, for instance, a court order. Thus far, no system design has been shown to meet this requirement fully on a technical basis alone. All proposed systems also require correct functioning of some social linkage, for instance the process of request for access, exami ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Key (cryptography)
A key in cryptography is a piece of information, usually a string of numbers or letters that are stored in a file, which, when processed through a cryptographic algorithm, can encode or decode cryptographic data. Based on the used method, the key can be different sizes and varieties, but in all cases, the strength of the encryption relies on the security of the key being maintained. A key's security strength is dependent on its algorithm, the size of the key, the generation of the key, and the process of key exchange. Scope The key is what is used to encrypt data from plaintext to ciphertext. There are different methods for utilizing keys and encryption. Symmetric cryptography Symmetric cryptography refers to the practice of the same key being used for both encryption and decryption. Asymmetric cryptography Asymmetric cryptography has separate keys for encrypting and decrypting. These keys are known as the public and private keys, respectively. Purpose Since the key ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Key Disclosure Law
Key disclosure laws, also known as mandatory key disclosure, is legislation that requires individuals to surrender cryptographic keys to law enforcement. The purpose is to allow access to material for confiscation or digital forensics purposes and use it either as evidence in a court of law or to enforce national security interests. Similarly, mandatory decryption laws force owners of encrypted data to supply decrypted data to law enforcement. Nations vary widely in the specifics of how they implement key disclosure laws. Some, such as Australia, give law enforcement wide-ranging power to compel assistance in decrypting data from any party. Some, such as Belgium, concerned with self-incrimination, only allow law enforcement to compel assistance from non-suspects. Some require only specific third parties such as telecommunications carriers, certification providers, or maintainers of encryption services to provide assistance with decryption. In all cases, a warrant is generally re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Related-key Attack
In cryptography, a related-key attack is any form of cryptanalysis where the attacker can observe the operation of a cipher under several different keys whose values are initially unknown, but where some mathematical relationship connecting the keys is known to the attacker. For example, the attacker might know that the last 80 bits of the keys are always the same, even though they don't know, at first, what the bits are. KASUMI KASUMI is an eight round, 64-bit block cipher with a 128-bit key. It is based upon MISTY1 and was designed to form the basis of the 3G confidentiality and integrity algorithms. Mark Blunden and Adrian Escott described differential related key attacks on five and six rounds of KASUMI. Differential attacks were introduced by Biham and Shamir. Related key attacks were first introduced by Biham. Differential related key attacks are discussed in Kelsey et al.Kelsey, John, Bruce Schneier, and David Wagner. "Key-schedule cryptanalysis of idea, g-des, gost, s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Data Securities International
Data Securities International, DSI was a technology escrow administration company based in San Francisco, California. Founded in 1982, the company escrows source code and other maintenance materials for licensees and stakeholders. In 1997, Iron Mountain Incorporated Iron Mountain Inc. is an American enterprise information management services company founded in 1951 and headquartered in Boston, Massachusetts. Its records management, information destruction, and data backup and recovery services are supplied t ... acquired the company. In 2021, Iron Mountain sold DSI (now IPM within IRM) for $220 million (see NASDAQ). Dwight C. Olson was the founder of Data Securities International. DSI History Data Securities International was founded in 1982. The company grew steadily over the years before being sold to Iron Mountain in 1997. Data Securities International introduced the concept in the mid 1980s for a Total Software Value (TSV) that uses the composites of Ownership Value (OV) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Key Management
Key management refers to management of Key (cryptography), cryptographic keys in a cryptosystem. This includes dealing with the generation, exchange, storage, use, crypto-shredding (destruction) and replacement of keys. It includes cryptographic protocol design, Key server (cryptographic), key servers, user procedures, and other relevant protocols. Key management concerns keys at the user level, either between users or systems. This is in contrast to key scheduling, which typically refers to the internal handling of keys within the operation of a cipher. Successful key management is critical to the security of a cryptosystem. It is the more challenging side of cryptography in a sense that it involves aspects of social engineering such as system policy, user training, organizational and departmental interactions, and coordination between all of these elements, in contrast to pure mathematical practices that can be automated. Types of keys Cryptographic systems may use different ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cryptography
Cryptography, or cryptology (from "hidden, secret"; and ''graphein'', "to write", or ''-logy, -logia'', "study", respectively), is the practice and study of techniques for secure communication in the presence of Adversary (cryptography), adversarial behavior. More generally, cryptography is about constructing and analyzing Communication protocol, 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 (confidentiality, data confidentiality, data integrity, authentication, and non-repudiation) are also central to cryptography. Practical applications of cryptography include electronic commerce, Smart card#EMV, chip-based payment cards, digital currencies, password, computer passwords, and military communications. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Self-incrimination
In criminal law, self-incrimination is the act of making a statement that exposes oneself to an accusation of criminal liability or prosecution. Self-incrimination can occur either directly or indirectly: directly, by means of interrogation where information of a self-incriminatory nature is disclosed; or indirectly, when information of a self-incriminatory nature is disclosed voluntarily without pressure from another person. In many legal systems, accused criminals cannot be compelled to incriminate themselves—they may choose to speak to police or other authorities, but they cannot be punished for refusing to do so. There are 108 countries and jurisdictions that currently issue legal warnings to suspects, which include the right to remain silent and the right to legal counsel. These laws are not uniform across the world; however, members of the European Union have developed their laws around the EU's guide. Australia A limited right against self-incrimination exists at com ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Court
A court is an institution, often a government entity, with the authority to adjudicate legal disputes between Party (law), parties and Administration of justice, administer justice in Civil law (common law), civil, Criminal law, criminal, and Administrative law, administrative matters in accordance with the rule of law. Courts generally consist of Judge, judges or other judicial officers, and are usually established and dissolved through legislation enacted by a legislature. Courts may also be established by constitution or an equivalent constituting instrument. The practical authority given to the court is known as its jurisdiction, which describes the court's power to decide certain kinds of questions, or Petition, petitions put to it. There are various kinds of courts, including trial courts, appellate courts, administrative courts, international courts, and tribunals. Description A court is any person or institution, often as a government institution, with the authori ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Encryption
In Cryptography law, cryptography, encryption (more specifically, Code, encoding) is the process of transforming information in a way that, ideally, only authorized parties can decode. This process converts the original representation of the information, known as plaintext, into an alternative form known as ciphertext. Despite its goal, 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 (cryptography), 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Court Order
A court order is an official proclamation by a judge (or panel of judges) that defines the legal relationships between the parties to a hearing, a trial, an appeal or other court proceedings. Such ruling requires or authorizes the carrying out of certain steps by one or more parties to a case. A court order must be signed by a judge; some jurisdictions may also require it to be notarized. A court order governs each case throughout its entirety. If an individual violates the court order, the judge may hold that person in contempt. Content The content and provisions of a court order depend on the type of proceeding, the phase of the proceedings in which they are issued, and the procedural and evidentiary rules that govern the proceedings. An order can be as simple as setting a date for trial or as complex as restructuring contractual relationships by and between many corporations in a multi- jurisdictional dispute. It may be a final order (one that concludes the court action ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Information
Information is an Abstraction, abstract concept that refers to something which has the power Communication, to inform. At the most fundamental level, it pertains to the Interpretation (philosophy), interpretation (perhaps Interpretation (logic), formally) of that which may be sensed, or their abstractions. Any natural process that is not completely random and any observable pattern in any Media (communication), medium can be said to convey some amount of information. Whereas digital signals and other data use discrete Sign (semiotics), signs to convey information, other phenomena and artifacts such as analog signals, analogue signals, poems, pictures, music or other sounds, and current (fluid), currents convey information in a more continuous form. Information is not knowledge itself, but the meaning (philosophy), meaning that may be derived from a representation (mathematics), representation through interpretation. The concept of ''information'' is relevant or connected t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
