How to prepare for the eventual arrival of SHA-3

Disk Encryption and File Encryption

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  • Data Encryption Standard (DES)

    Data Encryption Standard (DES) is a widely-used method of data encryption using a private (secret) key that was judged so difficult to break by the U.S. government that it was restricted for exportation to other countries.  Definition

  • encryption

    Encryption is the conversion of data into a form, called a ciphertext, that cannot be easily understood by unauthorized people. Decryption is the process of converting encrypted data back into its original form, so it can be understood.  Definition

  • block cipher

    A block cipher is a method of encrypting text (to produce ciphertext) in which a cryptographic key and algorithm are applied to a block of data (for example, 64 contiguous bits) at once as a group rather than to one bit at a time.  Definition

  • output feedback (OFB)

    In cryptography, output feedback (OFB) is a mode of operation for a block cipher.  Definition

  • stream cipher

    A stream cipher is a method of encrypting text (to produce ciphertext) in which a cryptographic key and algorithm are applied to each binary digit in a data stream, one bit at a time.  Definition

  • quantum cryptography

    Quantum cryptography uses our current knowledge of physics to develop a cryptosystem that is not able to be defeated - that is, one that is completely secure against being compromised without knowledge of the sender or the receiver of the messages.  Definition

  • Quiz: Cryptography

    OK, boys and girls! Do you have your secret decoder handy? Here's this week's special message. OK, boys and girls! Do you have your secret decoder handy? Here's this week's special message." (Radio message to subscribed members of the Lone Ranger Clu...  Quiz

  • Content Scrambling System (CSS)

    Content Scrambling System (CSS) is a data encryption and authentication method used to protect digital versatile disk (DVD) movies from being illegally copied, distributed, and viewed from other devices, such as computer hard drives.  Definition

  • one-time pad

    In cryptography, a one-time pad is a system in which a private key generated randomly is used only once to encrypt a message that is then decrypted by the receiver using a matching one-time pad and key.  Definition

  • International Data Encryption Algorithm (IDEA)

    IDEA (International Data Encryption Algorithm) is an encryption algorithm developed at ETH in Zurich, Switzerland.  Definition

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