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.