DNSSEC
DNSSEC: A security extension for the DNS protocol that uses digital signatures to ensure the authenticity of DNS data and protect it from tampering and spoofing, thereby preventing attacks such as DNS poisoning.
Diffie-Hellman (DH or D-H)
Diffie-Hellman (DH or D-H): A cryptographic protocol enabling secure key exchange over a public channel, allowing two parties to establish a shared secret key without directly sharing private information. It is foundational for secure communications, underpinning many encryption and secure communication technologies.
Diffusion
Diffusion: In cryptography, diffusion refers to the technique of dispersing the influence of a plaintext character across many ciphertext characters. This ensures that changing one character in the plaintext results in multiple changes in the ciphertext, making it more resistant to statistical analysis and enhancing security.
Digital Code Signing
Digital Code Signing: The process of using a digital certificate to sign a piece of software or code. This signature verifies the identity of the software author and assures the recipient that the code has not been altered or corrupted since it was signed. This helps protect users from installing malicious software disguised as legitimate […]
Digital Forensics and Incident Response (DFIR)
Digital Forensics and Incident Response (DFIR): A discipline that combines traditional digital forensics (the recovery and investigation of material found in digital devices) with incident response (the process of handling and responding to security incidents or attacks). The goal is to uncover the details of an incident, remediate it, and determine how to prevent similar […]
Digital Forensics
Digital Forensics: A specialized field focusing on uncovering and interpreting electronic data for use in investigations or legal proceedings. The goal is to preserve any evidence in its original state while performing a structured analysis to understand the full details of a digital crime or unauthorized event.