Lexmark CX827
Overview:
A " Signature algorithm not supported" error message implies that the certificate type used in the printer is not supported.
Certificate algorithms:
Because of the recently found vulnerabilities on SHA1 certificates, users are now moving to SHA2 certificates.
SHA2
has four kinds of hash functions:
SHA224
SHA256
SHA384
SHA512
Although Lexmark printers support the SHA2 certificate, not all of them support all hash functions, especially SHA384 and SHA512.
Printer models that support SHA384 and SHA512:
Here are the list of printers that support SHA384 and SHA512:
Product announced year
Printer models
2012 Products
MS31x, MS41x, MS51x, MS61x, MS71x, MS81x, MS91x, MX31x, MX41x, MX51x, MX61x, MX71x, MX81x, MX91x, CS31x, CS41x, CS51x, CX31x, CX41x, CX51x
2016 Products
CS720, CS725, CS820, C6160, CX725, CX820, CX825, CX860, XC6152, XC8155, XC8160
IMPORTANT!
For users who have older printer models and want to use the SHA384 and SHA512 hash functions, a Special Product Request (SPR) process is necessary to proceed. Please contact Lexmark Technical Support for assessment and more information.
NOTE:
Still Need Help?
Have the following available when calling Lexmark Technical Support;
Printer model(s)
Printer serial number
Software / Solution
LEGACY ID: FA1226
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