integrity_digsig_verify
rc = integrity_digsig_verify(INTEGRITY_KEYRING_EVM,
rc = integrity_digsig_verify(INTEGRITY_KEYRING_IMA,
rc = integrity_digsig_verify(INTEGRITY_KEYRING_PLATFORM,
rc = integrity_digsig_verify(INTEGRITY_KEYRING_IMA,
int integrity_digsig_verify(const unsigned int id, const char *sig, int siglen,