verify_pkcs7_message_sig 298 certs/system_keyring.c ret = verify_pkcs7_message_sig(data, len, pkcs7, trusted_keys, usage, verify_pkcs7_message_sig 45 include/linux/verification.h extern int verify_pkcs7_message_sig(const void *data, size_t len, verify_pkcs7_message_sig 138 security/integrity/ima/ima_modsig.c return verify_pkcs7_message_sig(NULL, 0, modsig->pkcs7_msg, keyring,