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| X509_NAME_HASH(3) | FreeBSD Library Functions Manual | X509_NAME_HASH(3) |
NAME
X509_NAME_hash,
X509_issuer_name_hash,
X509_subject_name_hash,
X509_NAME_hash_old,
X509_issuer_name_hash_old,
X509_subject_name_hash_old —
SYNOPSIS
#include <openssl/x509.h>
unsigned long
X509_NAME_hash(X509_NAME
*name);
unsigned long
X509_issuer_name_hash(X509
*x);
unsigned long
X509_subject_name_hash(X509
*x);
unsigned long
X509_NAME_hash_old(X509_NAME
*name);
unsigned long
X509_issuer_name_hash_old(X509
*x);
unsigned long
X509_subject_name_hash_old(X509
*x);
DESCRIPTION
X509_NAME_hash() calculates an
SHA1(3)
hash of the DER-encoded form of name. It is for example
used by
X509_LOOKUP_hash_dir(3)
to locate certificate files in the file system.
X509_issuer_name_hash() and
X509_subject_name_hash() are wrappers to calculate
this hash of the issuer or subject name of x,
respectively.
X509_NAME_hash_old(),
X509_issuer_name_hash_old(), and
X509_subject_name_hash_old() are variants that use
MD5 instead of SHA-1.
RETURN VALUES
These functions return the hash value or 0 if an error occurs.SEE ALSO
i2d_X509_NAME(3), X509_get_subject_name(3), X509_LOOKUP_new(3), X509_NAME_digest(3), X509_NAME_new(3)HISTORY
X509_subject_name_hash() first appeared in SSLeay 0.4.0,
X509_issuer_name_hash() in SSLeay 0.5.1, and
X509_NAME_hash() in SSLeay 0.8.0. They were switched
to hashing the DER representation of the name rather than an ASCII rendering
in SSLeay 0.9.0 and have all been available since OpenBSD
2.4.
They were switched to using SHA1 instead of MD5 in OpenSSL 1.0.0 and in OpenBSD 4.9.
X509_NAME_hash_old(),
X509_issuer_name_hash_old(), and
X509_subject_name_hash_old() first appeared in
OpenSSL 1.0.0 and have been available since OpenBSD
4.9.
| July 31, 2021 | FreeBSD 13.1-RELEASE |
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