asn1_der_decoding(3) libtasn1 asn1_der_decoding(3)

asn1_der_decoding - API function

#include <libtasn1.h>

int asn1_der_decoding(asn1_node * element, const void * ider, int ider_len, char * errorDescription);

pointer to an ASN1 structure.
vector that contains the DER encoding.
number of bytes of * ider : ider [0].. ider [len-1].
null-terminated string contains details when an error occurred.

Fill the structure * element with values of a DER encoding string. The structure must just be created with function asn1_create_element().

Note that the * element variable is provided as a pointer for historical reasons.

ASN1_SUCCESS if DER encoding OK, ASN1_ELEMENT_NOT_FOUND if ELEMENT is NULL, and ASN1_TAG_ERROR or ASN1_DER_ERROR if the der encoding doesn't match the structure name (* ELEMENT deleted).

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The full documentation for libtasn1 is maintained as a Texinfo manual. If the info and libtasn1 programs are properly installed at your site, the command

info libtasn1

should give you access to the complete manual. As an alternative you may obtain the manual from:

https://www.gnu.org/software/libtasn1/manual/
4.18.0 libtasn1