Canon imageCLASS MF746Cdw User Manual page 683

● IPSec supports communication to a unicast address (or a single device).
● The machine cannot use both IPSec and DHCPv6 at the same time.
◼
Registration of Keys and Certificates
● If you install a key or CA certificate from a computer, make sure that they meet the following requirements:
Format
File extension
Public key algorithm
(and key length)
Certificate signature algorithm
Certificate thumbprint algorithm SHA1
*1
Requirements for the certificate contained in a key are pursuant to CA certificates.
*2
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 certificate revocation list (CRL).
◼
Definition of "Weak Encryption"
When <Prohibit Use of Weak Encrypt.> is set to <On>, the use of the following algorithms is prohibited.
Hash:
HMAC:
Common key cryptosystem:
Public key cryptosystem:
● Even when <Prohibit Weak Encryp. Key/Cert.> is set to <On>, the hash algorithm SHA-1, which is used for
signing a root certificate, can be used.
Appendix
*1
● Key: PKCS#12
● CA certificate: X.509 DER/PEM
● Key: ".p12" or ".pfx"
● CA certificate: ".cer" or ".pem"
● RSA (512 bits, 1024 bits, 2048 bits, 4096 bits)
● DSA (1024 bits, 2048 bits, 3072 bits)
● ECDSA (P256, P384, P521)
● RSA: SHA-1, SHA-256, SHA-384
● DSA: SHA-1
● ECDSA: SHA-1, SHA-256, SHA-384, SHA-512
MD4, MD5, SHA-1
HMAC-MD5
RC2, RC4, DES
RSA encryption (512 bits/1024 bits), RSA signature (512 bits/1024 bits), DSA (512 bits/1024
bits), DH (512 bits/1024 bits)
675
*2 *2
, SHA-512 , MD2, MD5