From 058f12b7266a21f04893e88d8240b81e7c51fcd5 Mon Sep 17 00:00:00 2001 From: Massimiliano Pala Date: Mon, 19 Feb 2018 15:47:02 -0500 Subject: [PATCH] Add X509_get0_authority_key_id() function This function makes it easier to retrieve a reference to the authority key identifier (akid->keyid) inside a certificate. Reviewed-by: Matt Caswell Reviewed-by: Rich Salz (Merged from https://github.com/openssl/openssl/pull/5271) (cherry picked from commit b383aa2081467e8d49c3362d295da7bd5cb4e1d8) --- crypto/x509v3/v3_purp.c | 7 +++++++ doc/crypto/X509_get_extension_flags.pod | 6 ++++++ include/openssl/x509v3.h | 1 + util/libcrypto.num | 1 + 4 files changed, 15 insertions(+) diff --git a/crypto/x509v3/v3_purp.c b/crypto/x509v3/v3_purp.c index fa5c425ffc..9030d5369f 100644 --- a/crypto/x509v3/v3_purp.c +++ b/crypto/x509v3/v3_purp.c @@ -847,6 +847,13 @@ const ASN1_OCTET_STRING *X509_get0_subject_key_id(X509 *x) return x->skid; } +const ASN1_OCTET_STRING *X509_get0_authority_key_id(X509 *x) +{ + /* Call for side-effect of computing hash and caching extensions */ + X509_check_purpose(x, -1, -1); + return (x->akid != NULL ? x->akid->keyid : NULL); +} + long X509_get_pathlen(X509 *x) { /* Called for side effect of caching extensions */ diff --git a/doc/crypto/X509_get_extension_flags.pod b/doc/crypto/X509_get_extension_flags.pod index c78e4573c3..4a255602c1 100644 --- a/doc/crypto/X509_get_extension_flags.pod +++ b/doc/crypto/X509_get_extension_flags.pod @@ -3,6 +3,7 @@ =head1 NAME X509_get0_subject_key_id, +X509_get0_authority_key_id, X509_get_pathlen, X509_get_extension_flags, X509_get_key_usage, @@ -20,6 +21,7 @@ X509_get_proxy_pathlen - retrieve certificate extension data uint32_t X509_get_key_usage(X509 *x); uint32_t X509_get_extended_key_usage(X509 *x); const ASN1_OCTET_STRING *X509_get0_subject_key_id(X509 *x); + const ASN1_OCTET_STRING *X509_get0_authority_key_id(X509 *x); void X509_set_proxy_flag(X509 *x); void X509_set_proxy_pathlen(int l); long X509_get_proxy_pathlen(X509 *x); @@ -109,6 +111,10 @@ X509_get0_subject_key_id() returns an internal pointer to the subject key identifier of B as an B or B if the extension is not present or cannot be parsed. +X509_get0_authority_key_id() returns an internal pointer to the authority key +identifier of B as an B or B if the extension +is not present or cannot be parsed. + X509_set_proxy_flag() marks the certificate with the B flag. This is for the users who need to mark non-RFC3820 proxy certificates as such, as OpenSSL only detects RFC3820 compliant ones. diff --git a/include/openssl/x509v3.h b/include/openssl/x509v3.h index 533a38ded5..bc233077e3 100644 --- a/include/openssl/x509v3.h +++ b/include/openssl/x509v3.h @@ -658,6 +658,7 @@ uint32_t X509_get_extension_flags(X509 *x); uint32_t X509_get_key_usage(X509 *x); uint32_t X509_get_extended_key_usage(X509 *x); const ASN1_OCTET_STRING *X509_get0_subject_key_id(X509 *x); +const ASN1_OCTET_STRING *X509_get0_authority_key_id(X509 *x); int X509_PURPOSE_get_count(void); X509_PURPOSE *X509_PURPOSE_get0(int idx); diff --git a/util/libcrypto.num b/util/libcrypto.num index 05c66e9eac..8414d97ff1 100644 --- a/util/libcrypto.num +++ b/util/libcrypto.num @@ -4233,3 +4233,4 @@ ZINT64_it 4215 1_1_0f EXIST:EXPORT_VAR_AS_FUNCTION CRYPTO_secure_clear_free 4315 1_1_0g EXIST::FUNCTION: EVP_PKEY_set1_engine 4347 1_1_0g EXIST::FUNCTION:ENGINE OCSP_resp_get0_signer 4374 1_1_0h EXIST::FUNCTION:OCSP +X509_get0_authority_key_id 4448 1_1_0h EXIST::FUNCTION: -- 2.25.1