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/* X.509 certificate parser internal definitions
* Copyright (C) 2012 Red Hat, Inc. All Rights Reserved.
* Written by David Howells (
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public Licence
* as published by the Free Software Foundation; either version
* 2 of the Licence, or (at your option) any later version.
#include <linux/time.h>
#include <crypto/public_key.h>
struct x509_certificate {
struct x509_certificate *next;
struct x509_certificate *signer; /* Certificate that signed this one */
struct public_key *pub; /* Public key details */
struct public_key_signature sig; /* Signature parameters */
char *issuer; /* Name of certificate issuer */
char *subject; /* Name of certificate subject */
struct asymmetric_key_id *id; /* Serial number + issuer */
struct asymmetric_key_id *skid; /* Subject + subjectKeyId (optional) */
struct asymmetric_key_id *authority; /* Authority key identifier (optional) */
struct tm valid_from;
struct tm valid_to;
const void *tbs; /* Signed data */
unsigned tbs_size; /* Size of signed data */
unsigned raw_sig_size; /* Size of sigature */
const void *raw_sig; /* Signature data */
const void *raw_serial; /* Raw serial number in ASN.1 */
unsigned raw_serial_size;
unsigned raw_issuer_size;
const void *raw_issuer; /* Raw issuer name in ASN.1 */
const void *raw_subject; /* Raw subject name in ASN.1 */
unsigned raw_subject_size;
unsigned raw_skid_size;
const void *raw_skid; /* Raw subjectKeyId in ASN.1 */
unsigned index;
bool seen; /* Infinite recursion prevention */
bool verified;
bool trusted;
bool unsupported_crypto; /* T if can't be verified due to missing crypto */
* x509_cert_parser.c
extern void x509_free_certificate(struct x509_certificate *cert);
extern struct x509_certificate *x509_cert_parse(const void *data, size_t datalen);
* x509_public_key.c
extern int x509_get_sig_params(struct x509_certificate *cert);
extern int x509_check_signature(const struct public_key *pub,
struct x509_certificate *cert);