The xsecure_rsa.h file contains hardware interface related information for the
RSA hardware accelerator. This hardened cryptographic accelerator, within the CSU, performs
the modulus math based on the Rivest-Shamir-Adelman (RSA) algorithm. It is an asymmetric
algorithm.
Initialization & Configuration
The RSA driver instance can be initialized by using the
XSecure_RsaInitialize()
function.
The method used for RSA implementation can take a pre-calculated value of R^2 mod N. If you do not have the pre-calculated exponential value pass NULL, the controller will take care of the exponential value.
Note:
- From the RSA key modulus, the exponent should be extracted.
- For verification, PKCS v1.5 padding scheme has to be applied for comparing the data hash with decrypted hash.