El Gamal Algorithm
El Gamal Algorithm: A public key cryptosystem based on the Diffie-Hellman key exchange. It was developed by Taher ElGamal in 1985 and is used for digital signatures, key agreements, and encryption. The El Gamal encryption system is an alternative to the RSA algorithm and relies on the difficulty of calculating discrete logarithms for providing security. […]
Ephemeral Key
Ephemeral Key: A cryptographic key that is used only once or for a brief period of time before being discarded. It is typically employed in secure communications to ensure the confidentiality and integrity of each individual session. The use of ephemeral keys enhances security by ensuring that even if a key is compromised, it can’t […]
Electronic Code Book (ECB) Mode
Electronic Code Book (ECB) Mode: Electronic Code Book (ECB) Mode is the simplest form of block cipher encryption where each block of plaintext is encrypted independently. Its main weakness lies in not hiding data patterns well, as identical plaintext blocks produce identical ciphertext blocks. This predictability can lead to security vulnerabilities, making ECBs unsuitable for […]
Electronic vaulting (e-vaulting)
Electronic vaulting (e-vaulting): The transfer of backup data to an off-site storage system using network connections. This method is usually automated and occurs at pre-scheduled times to ensure data availability in case of unexpected events. Its purpose is to protect critical data from site-specific disasters and improve recovery time while maintaining the confidentiality, integrity, and […]
Elevation of privilege
Elevation of privilege: A scenario where a user or process gains higher access rights or permissions than they’re intended to have, typically resulting in unauthorized control over system resources. It often constitutes a serious security flaw, as it allows the individual or process to bypass restrictions, potentially leading to information theft, data corruption, or additional […]
Elliptic Curve Cryptography (ECC)
Elliptic Curve Cryptography (ECC): A public key encryption technique based on elliptic curve theory that can be used to create faster, smaller, and more efficient cryptographic keys. ECC generates keys through the properties of the elliptic curve equation instead of the traditional method of generation as the product of very large prime numbers, offering equivalent […]