NAME
encrdes - DES-CBC Encryption Algorithm Module for IPsec
SYNOPSIS
strmod/encrdes
DESCRIPTION
This module implements the United States Data Encryption
Standard ("DES") for IPsec. encrdes uses cipher-block
chaining ("CBC"), as per RFC 2405 and has the following pro-
perties:
Key Size
64 bits. 56 bit key, plus 8 parity bits. 7 bits
of key are followed by one bit of odd parity.
For example, the 56-bit key FF FF FF FF FF FF
FF would be encoded as FE FE FE FE FE FE FE FE.
encrdes supports weak-key checking and parity-
fixing to aid pf_key(7P).
Block Size
64 bits.
It is used by ESP.
Export Restriction
DES with an actual key strength of 56 bits is only available
inside the United States. DES has an effective key strength
of approximately 56 bits and is only available inside the
United States. DES cannot be realistically weakened for use
outside the United States..
ATTRIBUTES
See attributes(5)
for descriptions of the following attributes:
____________________________________________________________
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
|_____________________________|_____________________________|
| Availability | SUNWcryr (32-bit) |
|_____________________________|_____________________________|
| | SUNWcryrx (64-bit) |
|_____________________________|_____________________________|
| Interface Stability | Evolving |
|_____________________________|_____________________________|
SEE ALSO
ipseckey(1M),attributes(5),ipsec(7P),ipsecesp(7P),pf_key(7P)
Madson, C., and Doraswamy, N, RFC 2405, The ESP DES-CBC
Cipher Algorithm with Explicit IV, The Internet Society,
1998.
NIST, FIPS PUB 46-2: Data Encryption Standard, December,
1993.
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