shishi_asn1_to_der_field3

Arguments

Shishi * handle

shishi handle as allocated by shishi_init().

Shishi_asn1 node

ASN.1 data that have field to extract.

const char * field

name of field in node to extract.

char ** der

output array that holds DER encoding of field in node.

size_t * len

output variable with length of der output array.

Overview

Extract newly allocated DER representation of specified ASN.1 field.

Return value

Returns SHISHI_OK if successful, or SHISHI_ASN1_ERROR if DER encoding fails (common reasons for this is that the ASN.1 is missing required values).