NAME

ASN1_item_d2i_bio, ASN1_item_i2d_mem_bio - decode and encode DER-encoded ASN.1 structures

SYNOPSIS

 #include <openssl/asn1.h>

 void *ASN1_item_d2i_bio(const ASN1_ITEM *it, BIO *in, void *pval);
 BIO *ASN1_item_i2d_mem_bio(const ASN1_ITEM *it, const ASN1_VALUE *val);

DESCRIPTION

ASN1_item_d2i_bio() decodes the contents of its input BIO in, which must be a DER-encoded ASN.1 structure, using the ASN.1 template it and places the result in *pval unless pval is NULL. If in is NULL it returns NULL, else a pointer to the parsed structure.

ASN1_item_i2d_mem_bio() encodes the given ASN.1 value val using the ASN.1 template it and returns the result in a memory BIO.

RETURN VALUES

ASN1_item_d2i_bio() returns a pointer to an ASN1_VALUE or NULL.

ASN1_item_i2d_mem_bio() returns a pointer to a memory BIO or NULL on error.

HISTORY

ASN1_item_i2d_mem_bio() was added in OpenSSL 3.0.

COPYRIGHT

Copyright 2021 The OpenSSL Project Authors. All Rights Reserved.

Licensed under the Apache License 2.0 (the "License"). You may not use this file except in compliance with the License. You can obtain a copy in the file LICENSE in the source distribution or at https://www.openssl.org/source/license.html.