Datacryptor Ethernet User Manual

Appendix J: Glossary of Terms

Element Manager (EM)

Encrypted data

Encryption

Framing

Front Panel Viewer (FPV)

Hash Function

Hash Message Authentication Code (HMAC)

Integrity

IP

Key

MAC

MAC address

Message Digest #5 (MD-5)

Netmask

Peer

Plaintext

Private Key

Public Key

Public Key Algorithm

Application used to manage Datacryptor Ethernet devices and is used to launch the Front Panel Viewer (FPV) application.

Transformed plaintext data to ciphertext.

Data encryption scrambles and unscrambles data between two communication endpoints. The encryption process turns an original plaintext message that anyone can read into an encrypted ciphertext message that can be read only by an authorized recipient.

Method of distinguishing digital channels that have been multiplexed together

Is the application that authenticates the administrator with a Datacryptor Ethernet and allows it to be commissioned and managed.

An algorithm that computes a short digest of a longer message. The digest is usually of a fixed size.

A secret-key authentication algorithm. If only the source and destination know the HMAC key, the algorithm provides data origin authentication and data integrity for packets sent between the two parties. If the HMAC is correct, it proves that it must have been added by the source.

Integrity assures that the content of a message has not been altered.

Internet Protocol, this is the protocol that is used to transport data across the Internet.

Secret information used to decrypt or encrypt data

An abbreviation for Message Authentication Code, a digital signature used to authenticate individual messages.

Media Access Control This is the hardware address of an interface card built in during manufacture.

A message-digest algorithm that computes a secure, irreversible, cryptographically strong 128-bit hash value for a document.

Used in combination with an IP address to define the network portion of an IP address.

The Datacryptor device that participates in a connection.

The opposite of encrypted. Plaintext is an intelligible form of data such as the text on this page.

See Public Key

A key that is available to anyone. It is usually the other key to a pair, which consists of a public key and a private key.

An algorithm that is used in conjunction with a public key set to encrypt and decrypt data.

1270A450-005 - June 2008

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Angenieux 1270A450-005 user manual Mac

1270A450-005 specifications

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