asn1_retCode asn1_der_decoding_element(ASN1_TYPE * structure, const char * elementName, const void * ider, int len, char * errorDescription);
- ASN1_TYPE * structure
- pointer to an ASN1 structure
- const char * elementName
- name of the element to fill
- const void * ider
- vector that contains the DER encoding of the whole structure.
- int len
- number of bytes of *der: der..der[len-1]
- char * errorDescription
- null-terminated string contains details when an error occurred.
DESCRIPTIONFill the element named ELEMENTNAME with values of a DER encoding string. The structure must just be created with function asn1_create_element(). The DER vector must contain the encoding string of the whole STRUCTURE. If an error occurs during the decoding procedure, the *STRUCTURE is deleted and set equal to ASN1_TYPE_EMPTY.
RETURNSASN1_SUCCESS if DER encoding OK, ASN1_ELEMENT_NOT_FOUND if ELEMENT is ASN1_TYPE_EMPTY or elementName == NULL, and ASN1_TAG_ERROR or ASN1_DER_ERROR if the der encoding doesn't match the structure structure (*ELEMENT deleted).
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