Mitsubishi Electric ME-RTU Bedienungsanleitung Seite 281

DEVICE PROPERTIES
Item
15. Additional critical function
codes:
The DNP3 specification defines
those messages with specific func-
tion codes that are critical and must
be used as part of a secure authenti-
cation message exchange. Messages
with other function codes are
optional and changes to this list
should be noted here.
Note: Secure Authentication version
5 defines additional functions as criti-
cal that were not considered critical in
version 2. These are shown in the next
column annotated with "V2 only".
16. Other critical fragments:
Other critical transactions can be
defined and should be detailed here.
Examples could be based on time (for
example: the first transaction after
a communications session is estab-
lished). Other examples could be based
on specific data objects (for example:
the reading of specific data points).
17. Support for remote update
key changes:
Devices implementing secure
authentication version 5 or later
have the option to support remote
update key changes. If remote
update key change is supported
then the procedure using symmetric
cryptography is mandatory. Addi-
tional support for the procedure
using asymmetric (public key) cryp-
tography is optional.
18. "Default" user credentials are
permitted to expire:
ME-RTU Remote Terminal Unit
Capabilities
Additional function codes that are to be consid-
ered as "critical":
ã 0 (Confirm)
ã 1 (Read)
ã 7 (Immediate freeze)
ã 8 (Immediate freeze – no ack)
ã 9 (Freeze-and-clear)
ã 10 (Freeze-and-clear – no ack)
ã 11 (Freeze-at-time)
ã 12 (Freeze-at-time – no ack)
ã 22 (Assign Class)
ã 23 (Delay Measurement)
ã 25 (Open File) – V2 only
ã 26 (Close File) – V2 only
ã 27 (Delete File) – V2 only
ã 28 (Get File Info) – V2 only
ã 30 (Abort File) – V2 only
ã 129 (Response)
ã 130 (Unsolicited Response)
Describe any other critical fragment exchanges:
ã Remote update key change by symmetric
cryptography.
Supported key change methods:
ã AES-128 key wrap with
SHA-1-HMAC
ã AES-256 key wrap with
SHA-256-HMAC
ã AES-256 key wrap with
AES-GMAC
ã Remote update key change by asymmetric
cryptography
Supported key change methods:
ã RSAES-OAEP-1024/SHA-1
with DSA SHA-1 and SHA-1-HMAC
ã RSAES-OAEP-2048/SHA-256
with DSA SHA-256 and SHA-256-HMAC
ã RSAES-OAEP-3072/SHA-256
with DSA SHA-256 andSHA-256-HMAC
ã RSAES-OAEP-2048/SHA-256
with DSA SHA-256 and AES-GMAC
ã RSAES-OAEP-3072/SHA-256
with DSA SHA-256 and AES-GMAC
ã Yes
ã No
Security Parameters
If configurable,
Current Value
list methods
A - 27