NAME

DIST_POINT_new, DIST_POINT_free, CRL_DIST_POINTS_new, CRL_DIST_POINTS_free, DIST_POINT_NAME_new, DIST_POINT_NAME_free, ISSUING_DIST_POINT_new, ISSUING_DIST_POINT_free — X.509 CRL distribution point extensions

SYNOPSIS

#include <openssl/x509v3.h> DIST_POINT *
DIST_POINT_new(void); void
DIST_POINT_free(DIST_POINT *dp); CRL_DIST_POINTS *
CRL_DIST_POINTS_new(void); void
CRL_DIST_POINTS_free(CRL_DIST_POINTS *dps); DIST_POINT_NAME *
DIST_POINT_NAME_new(void); void
DIST_POINT_NAME_free(DIST_POINT_NAME *name); ISSUING_DIST_POINT *
ISSUING_DIST_POINT_new(void); void
ISSUING_DIST_POINT_free(ISSUING_DIST_POINT *dp);

DESCRIPTION

Using the CRL distribution point extension, a certificate can specify where to obtain certificate revocation lists that might later revoke it. DIST_POINT_new() allocates and initializes an empty DIST_POINT object, representing an ASN.1 DistributionPoint structure defined in RFC 5280 section 4.2.1.13. It can hold issuer names, distribution point names, and reason flags. DIST_POINT_free() frees dp. CRL_DIST_POINTS_new() allocates and initializes an empty CRL_DIST_POINTS object, which is a STACK_OF(DIST_POINT) and represents the ASN.1 CRLDistributionPoints structure defined in RFC 5280 section 4.2.1.13. It can be used as an extension in X509 and in X509_CRL objects. CRL_DIST_POINTS_free() frees dps. DIST_POINT_NAME_new() allocates and initializes an empty DIST_POINT_NAME object, representing an ASN.1 DistributionPointName structure defined in RFC 5280 section 4.2.1.13. It is used by the DIST_POINT and ISSUING_DIST_POINT objects and can hold multiple names, each representing a different way to obtain the same CRL. DIST_POINT_NAME_free() frees name. ISSUING_DIST_POINT_new() allocates and initializes an empty ISSUING_DIST_POINT object, representing an ASN.1 IssuingDistributionPoint structure defined in RFC 5280 section 5.2.5. Using this extension, a CRL can specify which distribution point it was issued from and which kinds of certificates and revocation reasons it covers. ISSUING_DIST_POINT_free() frees dp.

RETURN VALUES

DIST_POINT_new(), CRL_DIST_POINTS_new(), DIST_POINT_NAME_new(), and ISSUING_DIST_POINT_new() return the new DIST_POINT, CRL_DIST_POINTS, DIST_POINT_NAME, or ISSUING_DIST_POINT object, respectively, or NULL if an error occurs.

SEE ALSO

d2i_DIST_POINT(3), GENERAL_NAMES_new(3), X509_CRL_new(3), X509_EXTENSION_new(3), X509_NAME_new(3), X509_new(3)

STANDARDS

RFC 5280: Internet X.509 Public Key Infrastructure Certificate and Certificate Revocation List (CRL) Profile:

• section 4.2.1.13: CRL Distribution Points
• section 5.2.5: Issuing Distribution Point

HISTORY

DIST_POINT_new(), DIST_POINT_free(), CRL_DIST_POINTS_new(), CRL_DIST_POINTS_free(), DIST_POINT_NAME_new(), and DIST_POINT_NAME_free() first appeared in OpenSSL 0.9.3 and have been available since OpenBSD 2.6. ISSUING_DIST_POINT_new() and ISSUING_DIST_POINT_free() first appeared in OpenSSL 1.0.0 and have been available since OpenBSD 4.9.