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Certicate signatur
e algorithm
RSA: SHA-256, SHA-384
*3
, SHA-512
*3
ECDSA: SHA-256, SHA-384, SHA-512
*1
Requir
ements for the certicate contained in a key are pursuant to CA certicates.
*2
Certicates of more than 2 MB cannot be registered.
*3
SHA384-RSA and SHA512-RSA are available only when the RSA key length is 1024 bits or more.
● The machine does not support use of a certicate r
evocation list (CRL).
Denition of "
Weak Encryption"
When [Prohibit Use of Weak Encryption] in [Encryption Settings] is set to [On], the use of the following algorithms is
prohibited.
[Encryption Settings](P. 514)
Hash MD4, MD5, SHA-1
HMAC HMAC-MD5
Common key encryption RC2, RC4, DES
Public key encryption RSA encryption (512 bits/1024 bits)
RSA signatur
e (512 bits/1024 bits)
DSA (512 bits/1024 bits)
DH (512 bits/1024 bits)
● Even when [Pr
ohibit Key/Cert. with Weak Encryption] in [Encryption Settings] is set to [On], the hash
algorithm SHA-1, which is used for signing a root certicate, can be used.
TLS
The follo
wing combinations of the TLS version and algorithm are usable:
: Usable : Not usable
Algorithm TLS Version
TLS 1.3 TLS 1.2 TLS 1.1 TLS 1.0
Encryption Algorithm
About the Machine
39
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