This check checks if the CSR's name contains a field with no value. For example, the CSR Decoder would issue a warning about the name given below because the locality field is present, but has no value.
CN=www.acme.com, O=acme, L=, C=gb
The reason for this warning is that some CAs may reject CSRs that contain fields with empty values.
For a number of years now many prominent voices in the security community have suggested a move away from 1024-bit RSA key lengths by the end of 2010. In Special Publication 800-57 NIST recommends that 1024-bit RSA keys only be used to protect data until 2010. In 2003, RSA Labs published a document that recommended 1024-bit RSA keys should not be used to protect data with a lifetime beyond 2010.This check warns you if the RSA key size is less than 2048 bits
