Encryption technology Definitions

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  • C


    A cryptosystem is a structure or scheme consisting of a set of algorithms that converts plaintext to ciphertext to encode or decode messages securely.

  • D

    Data Encryption Standard (DES)

    The Data Encryption Standard (DES) is an outdated symmetric-key method of data encryption.

  • data encryption/decryption IC

    A data encryption/decryption IC is a specialized integrated circuit (IC) that can encrypt outgoing data and decrypt incoming data...

  • data key

    In cryptography, a data key is a key (a variable value that is applied to a string or block of text to encrypt or decrypt it) that is used to encrypt or decrypt data only and is not used to encrypt or decrypt other keys, as some encryption formulas call for.

  • decipher

    All three terms - decipher, decrypt, and decode - mean to convert ciphertext into the original, unencrypted plaintext.

  • digital certificate

    A digital certificate, also known as a public key certificate, is used to cryptographically link ownership of a public key with the entity that owns it.

  • E

    Electrohippies Collective

    The Electrohippies Collective is an international group of hacktivists based in Oxfordshire, England, whose purpose is to express its displeasure with the use of the Internet "as a tool for corporate communications and propaganda.

  • Electronic Code Book (ECB)

    Electronic Code Book (ECB) is a mode of operation for a block cipher, with the characteristic that each possible block of plaintext has a defined corresponding ciphertext value and vice versa.

  • elliptical curve cryptography (ECC)

    Elliptical curve cryptography (ECC) is a public key encryption technique based on elliptic curve theory that can be used to create faster, smaller, and more efficient cryptographic keys.

  • Encrypting File System (EFS)

    The Encrypting File System (EFS) is a feature of the Windows 2000 operating system that lets any file or folder be stored in encrypted form and decrypted only by an individual user and an authorized recovery agent.

  • encryption

    Encryption is the method by which information is converted into secret code that hides the information's true meaning. The science of encrypting and decrypting information is called cryptography.

  • end-to-end encryption (E2EE)

    End-to-end encryption is a secure method of transferring data from one end device to another without allowing third-party interference.

  • Escrowed Encryption Standard (EES)

    The Escrowed Encryption Standard (EES) is a standard for encrypted communications that was approved by the U.S. Department of Commerce in 1994 and is better known by the name of an implementation called the Clipper chip.

  • evil maid attack

    An evil maid attack is a security exploit that targets a computing device that has been shut down and left unattended.  An evil maid attack is characterized by the attacker's ability to physically access the target multiple times without the owner's knowledge. 

  • H

    homomorphic encryption

    Homomorphic encryption is the conversion of data into ciphertext that can be analyzed and worked with as if it were still in its original form.  Homomorphic encryptions allow complex mathematical operations to be performed on encrypted data without compromising the encryption.