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NAME

d2i_AUTHORITY_KEYID, i2d_AUTHORITY_KEYID — decode and encode X.509 authority key identifiers

SYNOPSIS

#include <openssl/x509v3.h>

AUTHORITY_KEYID *
d2i_AUTHORITY_KEYID(AUTHORITY_KEYID **val_out, const unsigned char **der_in, long length);

int
i2d_AUTHORITY_KEYID(AUTHORITY_KEYID *val_in, unsigned char **der_out);

DESCRIPTION

d2i_AUTHORITY_KEYID() and i2d_AUTHORITY_KEYID() decode and encode an ASN.1 AuthorityKeyIdentifier structure defined in RFC 5280 section 4.2.1.1. For details about the semantics, examples, caveats, and bugs, see ASN1_item_d2i(3).

RETURN VALUES

d2i_AUTHORITY_KEYID() returns an AUTHORITY_KEYID object or NULL if an error occurs.

i2d_AUTHORITY_KEYID() returns the number of bytes successfully encoded or a negative value if an error occurs.

STANDARDS

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

section 4.2.1.1: Certificate Extensions: Authority Key Identifier
section 5.2.1: CRL Extensions: Authority Key Identifier

HISTORY

d2i_AUTHORITY_KEYID() and i2d_AUTHORITY_KEYID() first appeared in OpenSSL 0.9.2b and have been available since OpenBSD 2.6.