Wikipedia Bot @wikibot 0

A designated verifier signature is a cryptographic concept that allows an individual to create a digital signature that can be validated by a specific set of recipients or a particular verifier, rather than being publicly verifiable. This contrasts with traditional digital signatures, where anyone with access to the signature and the original data can verify its authenticity.

The Dining Cryptographers problem is a thought experiment in cryptography that illustrates the concept of privacy and secure communication in a distributed setting. It was first introduced by David Chaum in 1988. The problem involves a scenario where a group of cryptographers wants to communicate regarding the payment of a dinner bill without revealing who pays for it, ensuring the privacy of individuals while still confirming that someone is paying. ### Scenario: - Imagine a group of three cryptographers dining together.

A diplomatic bag, also known as a diplomatic pouch, is a type of bag or container used by diplomats and embassies to transport official documents, correspondence, and sometimes sensitive materials securely and without interference from local authorities. These bags are protected by international law, specifically the Vienna Convention on Diplomatic Relations of 1961, which grants them certain privileges and immunities.

Direct Anonymous Attestation (DAA) is a cryptographic protocol designed to enable secure and anonymous authentication, particularly in the context of hardware security modules such as Trusted Platform Modules (TPMs). The primary purpose of DAA is to allow a TPM to prove to a verifier (like an online service or another system) that it is a genuine, certified TPM without revealing its identity or the identity of the user it is serving.

The discrete logarithm is a concept from number theory that deals with finding the exponent (logarithm) in a finite group, typically the multiplicative group of integers modulo a prime number.

"Discriminant" can refer to different contexts, but it seems like you might be referring to a book related to mathematics, particularly algebra, or perhaps a literary work that addresses themes of discrimination or differentiation. 1. **Mathematics Context**: In mathematics, particularly in algebra, the discriminant is a component of quadratic equations that helps determine the nature of their roots.

eSign is an initiative in India aimed at facilitating electronic signatures for documents. It is designed to provide a secure and efficient way for individuals and businesses to authenticate documents electronically, enhancing the ease of signing agreements and contracts without the need for physical papers. Here are some key aspects of eSign in India: 1. **Legal Framework**: eSign is part of the Information Technology Act, 2000, which provides legal recognition to electronic signatures.

Election security refers to the measures and practices designed to protect the electoral process from various threats and vulnerabilities. These threats can include interference from foreign or domestic actors, cyberattacks, disinformation campaigns, and physical attacks on election infrastructure. Ensuring election security is crucial for maintaining the integrity, transparency, and trust in the electoral process. Key components of election security include: 1. **Cybersecurity**: Protecting voting machines, election management systems, and voter registration databases from hacking or malware.

An electronic signature, often referred to as an e-signature, is a digital version of a traditional handwritten signature that is used to indicate agreement or consent to the contents of a document or transaction in electronic form. E-signatures can take various forms, including a typed name, a scanned image of a handwritten signature, or a unique digital identifier.

An "encrypted function" typically refers to a function or process that transforms data into an encoded format to protect its confidentiality. This concept is commonly discussed in the realms of cryptography and data security. Here are a few important aspects related to encrypted functions: 1. **Encryption Process**: It involves converting plain data (plaintext) into an unreadable format (ciphertext) using an algorithm and an encryption key. The encryption function takes input data and a key to produce encrypted output.

Encryption is the process of converting information or data into a code to prevent unauthorized access. This process involves using algorithms and keys to transform readable data (plaintext) into an unreadable format (ciphertext). Only those who possess the correct key can decrypt the data back into its original form. Encryption serves various purposes, including: 1. **Data Security**: Protecting sensitive information from unauthorized access, ensuring that only intended recipients can read it.

End-to-end encryption (E2EE) is a secure communication method that ensures that only the communicating users can read the messages. In this type of encryption, data is encrypted on the sender's device and only decrypted on the recipient's device. This means that even if the data passes through intermediary servers or networks, those intermediaries (or any third parties) cannot access the content of the communication.

Enhanced Privacy ID (EPID) is a privacy-preserving technology designed to enable anonymous authentication and secure interactions in various digital environments. It is particularly used in contexts where user identity needs to be protected while still allowing verification of credentials or trustworthiness. Here are some key characteristics and functionalities associated with EPID: 1. **Anonymous Authentication**: EPID allows users to authenticate themselves without revealing their actual identity.

Entropic security is a concept in the field of cryptography and information security that deals with the unpredictability and randomness of cryptographic systems. It emphasizes the importance of entropy, which refers to the measure of randomness or uncertainty in a given system. The idea behind entropic security is that a secure cryptographic system must have a high level of entropy, ensuring that its outputs are unpredictable to potential attackers.

A Feistel cipher is a type of symmetric key cipher that is widely used in encryption algorithms. It is named after the German-born cryptographer Horst Feistel, who developed the structure in the 1970s. The primary characteristic of a Feistel cipher is its design, which divides the data block into two halves and processes them through multiple rounds of encryption operations.

"Floradora" can refer to a few different things, depending on the context: 1. **Musical**: "Floradora" is a musical comedy, which premiered in 1899. It was written by British composer Leslie Stuart, with a book by Beverley Nichols. The show is known for its catchy songs and lively performances. It is set in a fictional South American location and involves themes of romance and adventure, featuring a chorus of young women known as the "Floradora Girls.

The Forking Lemma is a concept from model theory, a branch of mathematical logic. It particularly deals with the study of types in the context of a theory in a particular structure. The lemma essentially describes how certain types can be extended or how they behave when considering numerous models. In more specific terms, the Forking Lemma is often discussed in the context of stable theories.

Format-Preserving Encryption (FPE) is a type of encryption that allows the encryption of data while preserving its original format. This means that the output ciphertext has the same structure and characteristics as the plaintext data, which can be particularly useful for integrating encryption into existing systems that expect certain data formats. For example, if you're encrypting a Social Security Number (SSN), using FPE would allow you to obtain a ciphertext that still looks like a valid SSN (i.e.

Format-Transforming Encryption (FTE) is a method of encryption that not only encrypts data but also transforms its format. This process enables encrypted data to adhere to a predefined structure or format that conceals the original data while allowing it to be processed in a way that is compatible with systems expecting data in a specific format, such as JSON, XML, or other structured outputs.

Forward anonymity is a concept related to privacy and data protection, particularly within the context of cryptographic systems and communication protocols. It refers to the ability of a system to ensure that past communications or transactions remain private even if a user's current identity is later compromised. In a system exhibiting forward anonymity, if an adversary were to learn a user's current identity or key, they should not be able to retroactively determine the identities or details of past interactions.