NAME
X509_SIG_new,
X509_SIG_free —
PKCS#7 digest information
SYNOPSIS
#include
<openssl/x509.h>
X509_SIG *
X509_SIG_new(void);
void
X509_SIG_free(X509_SIG
*sig);
DESCRIPTION
X509_SIG_new()
allocates and initializes an empty X509_SIG object,
representing an ASN.1 DigestInfo structure defined in
RFC 2315 section 9.4 and equivalently in RFC 8017 section 9.2. It can hold a
message digest together with information about the algorithm used.
X509_SIG_free()
frees sig.
RETURN VALUES
X509_SIG_new() returns the new
X509_SIG object or NULL if an
error occurs.
SEE ALSO
d2i_X509_SIG(3), PEM_read_PKCS8(3), RSA_sign(3), X509_new(3)
STANDARDS
RFC 2315: PKCS #7: Cryptographic Message Syntax, section 9: Signed-data content type
RFC 8017: PKCS #1: RSA Cryptography Specifications, section 9: Encoding Methods for Signatures
HISTORY
X509_SIG_new() and
X509_SIG_free() appeared in SSLeay 0.4 or earlier
and have been available since OpenBSD 2.4.