asn1_der_decoding(3) API function


#include <libtasn1.h>

asn1_retCode asn1_der_decoding(ASN1_TYPE * element, const void * ider, int len, char * errorDescription);


ASN1_TYPE * element
pointer to an ASN1 structure.
const void * ider
vector that contains the DER encoding.
int len
number of bytes of *ider: ider[0]..ider[len-1].
char * errorDescription
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(). If an error occurs during the decoding procedure, the *ELEMENT is deleted and set equal to ASN1_TYPE_EMPTY.


ASN1_SUCCESS if DER encoding OK, ASN1_ELEMENT_NOT_FOUND if ELEMENT is ASN1_TYPE_EMPTY, and ASN1_TAG_ERROR or ASN1_DER_ERROR if the der encoding doesn't match the structure name (*ELEMENT deleted).


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