Allow compute_sha_to compute hash for all SHA1, SHa256, SHA384 and SHA512.

Signed-off-by: Joy Latten <jmlatten@linux.vnet.ibm.com>
Add mgf1 function to support rsa mechanisms.

Signed-off-by: Joy Latten <jmlatten@linux.vnet.ibm.com>
Implement single-part CKM_RSA_PKCS_OAEP into ock infrastructure.

Signed-off-by: Vicky <lo1@us.ibm.com>
Signed-off-by: Joy Latten <jmlatten@linux.vnet.ibm.com>
Implement CKM_RSA_PKCS_OAEP into ica token.

Signed-off-by: Vicky <lo1@us.ibm.com>