NAME
X509_signature_dump
,
X509_signature_print
—
pretty-print ASN.1 strings
SYNOPSIS
#include
<openssl/x509.h>
int
X509_signature_dump
(BIO *bio,
const ASN1_STRING *signature, int
indent);
int
X509_signature_print
(BIO *bio,
const X509_ALGOR *algorithm, const
ASN1_STRING *signature);
DESCRIPTION
X509_signature_dump
()
writes the data bytes contained in the signature to
bio in hexadecimal format with colons between bytes,
18 bytes per output line, each line indented with
indent space characters.
X509_signature_print
()
writes the name of the signature algorithm, or, if no
name for it is known, its object identifier (OID) to
bio using i2a_ASN1_OBJECT(3). After that, if a method object for the
algorithm can be retrieved with
EVP_PKEY_asn1_find(3) and if that object defines a printing method,
that printing method is used to print the signature.
Otherwise, unless the signature is
NULL
, it is printed using
X509_signature_dump
().
RETURN VALUES
These functions return 1 on success or 0 on failure. They fail and return as soon as any write operation fails.
SEE ALSO
ASN1_STRING_new(3), ASN1_STRING_print_ex(3), BIO_new(3), EVP_PKEY_asn1_new(3), OBJ_find_sigid_algs(3), X509_ALGOR_new(3), X509_get0_signature(3)
HISTORY
X509_signature_print
() first appeared in
OpenSSL 0.9.7 and has been available since OpenBSD
3.2.
X509_signature_dump
() first appeared in
OpenSSL 1.0.1 and has been available since OpenBSD
5.3.