Concept
The 'Chain of Trust' is a security model that ensures each link in a sequence of entities is trusted, with the integrity of the entire system depending on the trustworthiness of each individual link. It is commonly used in digital certificates and secure communications to verify identities and establish secure connections.
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Concept
Public Key Infrastructure (PKI) is a framework that enables secure, encrypted communication and authentication over networks by using pairs of cryptographic keys: public and private. It underpins the security of internet transactions, digital signatures, and electronic identities, ensuring data integrity and confidentiality.
Concept
Digital certificates are electronic credentials that verify the identity of entities and facilitate secure data exchange over the internet. They use public key infrastructure (PKI) to encrypt and authenticate communications, ensuring data integrity and confidentiality.
Concept
A Certificate Authority (CA) is a trusted entity that issues digital certificates, which verify the ownership of a public key and facilitate secure communication over networks like the internet. By acting as a third-party validator, CAs play a crucial role in the public key Infrastructure (PKI), ensuring the authenticity and integrity of data exchanged between parties.
Concept
A root certificate is a critical component in the public key infrastructure (PKI) that serves as the trust anchor for all other certificates issued by a certificate authority (CA). It is self-signed and widely trusted, enabling secure communication and authentication across networks and the internet.
Concept
An Intermediate Certificate acts as a bridge in a certificate chain, issued by a trusted root certificate authority to issue end-entity certificates. It enhances security by distributing trust and allowing for more manageable certificate revocation and renewal processes.
Concept
A Trust Anchor is a known and trusted entity that is used as a point of reference to validate the authenticity of digital certificates and establish a chain of trust in a network security system. It plays a critical role in ensuring secure communications by verifying that the entities involved are legitimate and authorized.
Concept
Secure Sockets Layer (SSL) is a cryptographic protocol designed to provide secure communication over a computer network by encrypting data transmitted between a client and a server. Although largely replaced by Transport Layer Security (TLS), SSL remains a foundational technology for establishing encrypted connections and ensuring data integrity and confidentiality on the internet.
Concept
Transport Layer Security (TLS) is a cryptographic protocol designed to provide secure communication over a computer network, safeguarding data integrity, confidentiality, and authenticity between client and server applications. It is widely used in securing web traffic, email, and other forms of data transmission, replacing its predecessor, Secure Sockets Layer (SSL).
Concept
Authentication is the process of verifying the identity of a user, device, or system, often serving as the first line of defense in cybersecurity. It ensures that access to resources is granted only to those who have been properly identified and authorized, thereby protecting sensitive information from unauthorized access.
Concept
Cryptographic trust refers to the reliance on cryptographic techniques to establish authenticity and integrity in digital communications, ensuring that data is secure and verifiable without the need for traditional trust mechanisms. It underpins technologies like blockchain and digital signatures, where trust is derived from mathematical proofs rather than human institutions.
Concept
A Key Signing Key (KSK) is a cryptographic key used to sign other keys, establishing a chain of trust within a digital security infrastructure, such as DNSSEC. It plays a critical role in ensuring the authenticity and integrity of public keys, thereby securing communications and data exchanges over the internet.
Concept
Secure Boot is a security standard designed to ensure that a device boots using only software that is trusted by the Original Equipment Manufacturer (OEM). By verifying the digital signatures of boot loaders, operating systems, and other critical components, it helps protect against malicious software and unauthorized access during the boot process.
Concept
A Delegation Signer Record (DS Record) is a type of DNS record used to secure delegations in the DNS hierarchy by linking a child zone's DNSKEY record to its parent zone. This record plays a crucial role in DNSSEC by providing a cryptographic chain of trust, ensuring that the DNS responses are authentic and have not been tampered with.
Concept
A Hardware Root of Trust is a foundational security feature embedded in a device's hardware, ensuring that the device's boot process and cryptographic operations are secure and trustworthy. It serves as a secure anchor for other security mechanisms, providing a trusted execution environment that is resistant to software-based attacks and tampering.
Concept
Trusted Computing is a technology designed to enhance the security of computer systems by integrating hardware and software mechanisms that enforce a consistent and reliable security policy. It aims to protect data and system integrity from unauthorized access or tampering by ensuring that only trusted software and processes can execute on a device.
Concept
Root of Trust (RoT) is a foundational security concept that provides a set of trusted functions within a computing system, ensuring that the system's security mechanisms are reliable and uncompromised. It serves as the basis for building a chain of trust, ensuring that each layer of the system can be trusted to perform its security functions correctly and securely.
Concept
A cryptographic trust model defines the framework and rules for how trust is established, managed, and validated in a cryptographic system, ensuring secure communication between entities. It specifies the roles of trusted third parties and the methods by which entities can verify the authenticity and integrity of cryptographic keys or certificates.
Concept
A certificate chain is a hierarchical sequence of certificates, where each certificate is signed by the subsequent certificate's issuer, establishing a trust path from a trusted root certificate to the end-entity certificate. This chain ensures the authenticity and integrity of the digital certificates involved, facilitating secure communication and identity verification in digital transactions.
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