Functions provided by the cryptographic device driver
The cryptographic device driver handles cryptographic accelerator, CCA coprocessor, and EP11 coprocessor adapters. The functions that the device driver provides depend on the adapter.
For both accelerators and CCA coprocessors, it provides Rivest-Shamir-Adleman (RSA) encryption and RSA decryption functions using clear keys. RSA operations are supported in both the modulus-exponent and the Chinese-Remainder Theorem (CRT) variants for any modulus in the range 57 - 4096 bit.
For CCA coprocessors, the device driver also provides a function to pass CCA requests to the cryptographic coprocessor and an access to the true random number generator of the CCA coprocessor.
For EP11 coprocessors, the device driver provides functionality to pass EP11 requests to the cryptographic coprocessor.