libressl-ASN1_item_pack3
Pack an asn.1 object into an asn1_string
Usage
Crypto Library (libcrypto, -lcrypto)
#include <openssl/asn1.h>
ASN1_STRING *
ASN1_item_pack(void *val_in, const ASN1_ITEM *it, ASN1_STRING **string_out);
void *
ASN1_item_unpack(const ASN1_STRING *string_in, const ASN1_ITEM *it);
Overview
ASN1_item_pack() encodes the object pointed to by val_in into DER format using ASN1_item_i2d(3) and stores the encoded form in **string_out. If string_out or *string_out is a NULL pointer, a new ASN1_STRING object is allocated and returned.
ASN1_item_unpack() interprets the data in string_in as a DER- or BER-encoded byte array and decodes one value of the type it into a newly allocated object using ASN1_item_d2i(3).
Return values
ASN1_item_pack() returns the modified or new object or NULL if memory allocation or encoding fails.
ASN1_item_unpack() returns the new object or NULL if memory allocation or decoding fails.