NAME
d2i_X509_NAME,
i2d_X509_NAME,
X509_NAME_get0_der,
X509_NAME_dup,
X509_NAME_hash,
d2i_X509_NAME_ENTRY,
i2d_X509_NAME_ENTRY,
X509_NAME_ENTRY_dup —
decode and encode X.501 Name
objects
SYNOPSIS
#include
<openssl/x509.h>
X509_NAME *
d2i_X509_NAME(X509_NAME
**val_out, unsigned char **der_in,
long length);
int
i2d_X509_NAME(X509_NAME *val_in,
unsigned char **der_out);
int
X509_NAME_get0_der(X509_NAME
*val_in, const unsigned char **der_out,
size_t *out_len);
X509_NAME *
X509_NAME_dup(X509_NAME
*val_in);
unsigned long
X509_NAME_hash(X509_NAME
*val_in);
X509_NAME_ENTRY *
d2i_X509_NAME_ENTRY(X509_NAME_ENTRY
**val_out, unsigned char **der_in,
long length);
int
i2d_X509_NAME_ENTRY(X509_NAME_ENTRY
*val_in, unsigned char **der_out);
X509_NAME_ENTRY *
X509_NAME_ENTRY_dup(X509_NAME_ENTRY
*val_in);
DESCRIPTION
These functions decode and encode X.501 Name objects using DER format. For details about the semantics, examples, caveats, and bugs, see ASN1_item_d2i(3).d2i_X509_NAME()
and
i2d_X509_NAME()
decode and encode an ASN.1 Name structure defined in
RFC 5280 section 4.1.2.4.
X509_NAME_get0_der()
is a variant of
i2d_X509_NAME()
that does not copy the encoded output but instead returns a pointer to the
internally cached DER-encoded version of the name. Also, it does not return
the length of the output in bytes, but instead stores it in
out_len. If the cached encoded form happens to be out
of date, both functions update it before copying it or returning a pointer
to it.
X509_NAME_dup()
copies val_in by calling
i2d_X509_NAME()
and d2i_X509_NAME().
X509_NAME_hash()
calculates a SHA1(3) hash of the DER-encoded form of the name
*val_in. It is for example used by
X509_LOOKUP_hash_dir(3) to locate certificate files in the
file system.
d2i_X509_NAME_ENTRY()
and
i2d_X509_NAME_ENTRY()
decode and encode an ASN.1 RelativeDistinguishedName
structure defined in RFC 5280 section 4.1.2.4.
X509_NAME_ENTRY_dup()
copies val_in by calling
i2d_X509_NAME_ENTRY()
and d2i_X509_NAME_ENTRY().
RETURN VALUES
d2i_X509_NAME() and
X509_NAME_dup() return the new
X509_NAME object or NULL if an
error occurs.
X509_NAME_get0_der() returns 1 on success
or 0 if an error occurs.
X509_NAME_hash() returns the hash value or
0 if an error occurs.
d2i_X509_NAME_ENTRY() and
X509_NAME_ENTRY_dup() return the new
X509_NAME_ENTRY object or NULL
if an error occurs.
i2d_X509_NAME() and
i2d_X509_NAME_ENTRY() return the number of bytes
successfully encoded or a negative value if an error occurs.
SEE ALSO
ASN1_item_d2i(3), X509_NAME_ENTRY_new(3), X509_NAME_new(3), X509_NAME_print_ex(3)
STANDARDS
RFC 5280: Internet X.509 Public Key Infrastructure Certificate and Certificate Revocation List (CRL) Profile
ITU-T Recommendation X.690, also known as ISO/IEC 8825-1: Information technology - ASN.1 encoding rules: Specification of Basic Encoding Rules (BER), Canonical Encoding Rules (CER) and Distinguished Encoding Rules (DER).
HISTORY
X509_NAME_dup() first appeared in SSLeay
0.4.4. d2i_X509_NAME(),
i2d_X509_NAME(),
d2i_X509_NAME_ENTRY(),
i2d_X509_NAME_ENTRY(), and
X509_NAME_ENTRY_dup() first appeared in SSLeay
0.5.1. X509_NAME_hash() first appeared in SSLeay
0.8.0. These functions have been available since OpenBSD
2.4.
X509_NAME_get0_der() first appeared in
OpenSSL 1.1.0 and has been available since OpenBSD
6.3.