Thales Datacryptor Ethernet User Manual page 133

Datacryptor Ethernet User Manual
Element Manager (EM)
Encrypted data
Encryption
Framing
Front Panel Viewer (FPV) Is the application that authenticates the administrator with a
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
1270A450-005 - June 2008
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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
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.
Appendix J: Glossary of Terms
Page 133