George Saitoti
George Saitoti was a prominent Kenyan politician and academic. Born on August 3, 1945, he served in various capacities throughout his political career, including as the Minister for Education and later as the Minister for Internal Security and Provincial Administration. Saitoti was also the Deputy Prime Minister of Kenya at various points.
Key derivation functions
Key Derivation Functions (KDFs) are cryptographic algorithms designed to derive one or more cryptographic keys from a secret value, such as a password, a master key, or a seed. The main purpose of a KDF is to take an input (often low-entropy data) and transform it into a higher-entropy key suitable for use in cryptographic applications, such as encryption, signing, or secure communications.
Key pre-distribution
Key pre-distribution is a method used in cryptography, particularly in the context of wireless sensor networks and other distributed systems, to establish secure communication among nodes without relying heavily on a centralized key management system. In key pre-distribution, a set of cryptographic keys is distributed to network nodes before they are deployed. This process typically involves the following steps: 1. **Key Generation**: A large pool of keys is generated beforehand.
Obsolete Austrian units of measurement refer to the various traditional units that were used in Austria for various fields, such as land area, volume, and weight, before being replaced by the metric system. Here are some examples of these units: 1. **Land Measurement**: - **Joch**: An area unit commonly used for agricultural land, approximately equivalent to 0.575 hectares or 1.42 acres.
A Derived Unique Key per Transaction (DUKPT) is a key management scheme used primarily in the field of payment processing and transactions, particularly in scenarios involving point-of-sale (POS) systems or card-based transactions. DUKPT is designed to enhance the security of sensitive information, such as Personal Identification Numbers (PINs) or payment card data, by generating unique encryption keys for each transaction while maintaining a manageable key distribution and management process. ### Key Features of DUKPT 1.
Domain Name System Security Extensions (DNSSEC) is a suite of extensions to the Domain Name System (DNS) that provides an added layer of security by enabling DNS responses to be verified for authenticity. This helps to protect against various attacks that can manipulate DNS information, such as cache poisoning, where an attacker inserts false data into a DNS resolver's cache.
Extended Validation Certificate
An Extended Validation Certificate (EV Certificate) is a type of SSL/TLS certificate that provides the highest level of assurance and security for websites. It is meant to give users greater confidence in the identity of the organization behind a website. EV Certificates are issued only after thorough verification of the requesting entity's legal, physical, and operational existence.
Fill device
A "fill device" generally refers to a tool or mechanism used to add a substance, like liquid or powder, to a container or system until it reaches a desired level or condition. The specific type and function of a fill device can vary widely depending on the context in which it is used. Here are a few examples: 1. **Industrial Fill Devices**: In manufacturing, fill devices are often used to dispense liquids, granules, or powders into packaging.
Forward secrecy
Forward secrecy (also known as perfect forward secrecy, or PFS) is a property of certain secure communication protocols that ensures the compromise of long-term keys does not compromise past session keys. In other words, it guarantees that even if a server's long-term private key is exposed, previously established session keys remain secure and cannot be decrypted.
GateKeeper is a type of access control device designed to enhance security and convenience in various environments, such as offices, data centers, and other facilities requiring restricted entry. Typically, GateKeeper systems use various technologies, including biometric verification, RFID (Radio Frequency Identification), and Bluetooth, to control access to secure areas. **Key Features of GateKeeper Devices:** 1. **Authentication Methods**: GateKeeper systems often include multi-factor authentication options.
KYK-13
KYK-13 is a synthetic compound that belongs to the category of biologically active compounds known as modulators of RNA metabolism. Specifically, it is a small molecule that has been found to influence the splicing of pre-mRNA, which is crucial for the proper expression of genes. Research into KYK-13 has shown that it can potentially have applications in the treatment of various diseases, including cancer, by affecting the way genes are expressed in cells.
Key (cryptography)
In cryptography, a "key" is a piece of information that is used to manipulate a cryptographic algorithm, enabling tasks such as encryption, decryption, authentication, and digital signatures. Keys are fundamental to ensuring the security of communications and data. There are two primary types of keys in cryptography: 1. **Symmetric Key**: This type of key is used in symmetric encryption algorithms where the same key is used for both encryption and decryption.
Key ceremony
A key ceremony is a formal process used in cryptography and cybersecurity to generate, distribute, and manage cryptographic keys used for securing communications and data. This process is often employed in environments where the security of cryptographic keys is critical, such as within government agencies, financial institutions, and large organizations. Key ceremonies typically involve several important steps: 1. **Key Generation**: The generation of cryptographic keys, which can include public/private key pairs for asymmetric encryption or symmetric keys for symmetric encryption.
Web of trust
The "Web of Trust" (WoT) is a decentralized trust model used primarily in peer-to-peer networks, cryptography, and digital communication systems. It provides a way to establish and verify the authenticity of identities and digital certificates without relying on a centralized authority, such as a Certificate Authority (CA).
Palm (unit)
A "palm" is a unit of measurement used to define the width of the human hand. Specifically, a palm is commonly regarded as being equivalent to 3 inches (about 7.62 centimeters). This unit has historical roots and was often used in various fields, including carpentry and tailoring, before the adoption of more standardized measurements. It is also sometimes used in contexts like horse racing to describe the height of horses (though this is less common).
Subsurface ocean current
Subsurface ocean currents refer to the flow of water beneath the surface layer of the ocean. These currents play a crucial role in the ocean's overall circulation system and are influenced by various factors, including temperature, salinity, and density differences within the water column. Subsurface currents can occur at different depths and can significantly impact global climate, marine ecosystems, and weather patterns.
Seifert surface
A Seifert surface is a surface used in the field of topology, particularly in the study of knots and links in three-dimensional space. Named after Herbert Seifert, these surfaces are oriented surfaces that are bounded by a given link in the three-dimensional sphere \( S^3 \). The key properties and characteristics of Seifert surfaces include: 1. **Boundary**: The boundary of a Seifert surface is a link in \( S^3 \).
Skein relation
"Skein relation" refers to a concept in the study of knots and links within the field of topology, specifically in knot theory. Skein relations are equations that express the relationships between different knots or links under certain conditions. These relations are often used in the computation of polynomial invariants of knots and links, such as the Jones polynomial or the HOMFLY-PT polynomial. The basic idea behind skein relations is to define a knot or link in terms of simpler components.
Slice genus
The slice genus is a concept from the field of topology, specifically in the study of 4-manifolds and knot theory. It is defined as follows: 1. **Knot Theory Context**: In knot theory, the slice genus of a knot in 3-dimensional space is a measure of how "simple" the knot is in terms of being able to be represented as the boundary of a smooth, oriented surface in a 4-dimensional space.
The Knot Atlas
The Knot Atlas is a wedding planning tool and resource offered by The Knot, a popular wedding planning website. The Atlas provides couples with personalized wedding ideas and inspiration by showcasing various venues, vendors, and wedding styles based on location. It helps users explore options tailored to their preferences, including different themes, budgets, and settings, making the wedding planning process more organized and efficient.