Canon i-SENSYS LBP6670dn User Manual page 696

4
Select [Key Algorithm].
Select from [512 bit], [1024 bit], [2048 bit], or [4096 bit].
When you select [SHA384] and [SHA512] in [Signature Algorithm], you can create a key only when selecting other than
[512 bit].
NOTE
Key Generation Algorithm
The generation algorithm when the printer generates a key is RSA.
About the key length
Although using the longer key makes it more difficult to decode data, the processing speed on encryption and decryption
is slower.
Select the key length according to the needs of security for data communication.
5
Specify the effective date and expiration date of the self-sign server certificate.
You can enter date between 1/1/2000 (1 Day 1 Month 2000 Year) and 31/12/2037 (31 Day 12 Month 2037 Year).
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