between 1 and blocksize bytes shorter than input length
11.16.5. General-length RC5-MAC
General-length RC5-MAC, denoted CKM_RC5_MAC_GENERAL, is a mechanism for single- and multiple-part signatures and verification, based on RSA Data Security’s block cipher RC5 and data authentication as defined in FIPS PUB 113.
It has a parameter, a CK_RC5_MAC_GENERAL_PARAMS structure, which specifies the wordsize and number of rounds of encryption to use and the output length desired from the mechanism.
The output bytes from this mechanism are taken from the start of the final RC5 cipher block produced in the MACing process.
Constraints on key types and the length of data are summarized in the following table:
Table 67, General-length RC2-MAC: Key And Data Length
