2 files changed, 51 insertions, 0 deletions
diff --git a/doc/build.info b/doc/build.info
index ec3baa2373..af0e0e0539 100644
--- a/doc/build.info
+++ b/doc/build.info
@@ -514,6 +514,10 @@ DEPEND[html/man3/ASN1_generate_nconf.html]=man3/ASN1_generate_nconf.pod
 GENERATE[html/man3/ASN1_generate_nconf.html]=man3/ASN1_generate_nconf.pod
 DEPEND[man/man3/ASN1_generate_nconf.3]=man3/ASN1_generate_nconf.pod
 GENERATE[man/man3/ASN1_generate_nconf.3]=man3/ASN1_generate_nconf.pod
+DEPEND[html/man3/ASN1_item_d2i_bio.html]=man3/ASN1_item_d2i_bio.pod
+GENERATE[html/man3/ASN1_item_d2i_bio.html]=man3/ASN1_item_d2i_bio.pod
+DEPEND[man/man3/ASN1_item_d2i_bio.3]=man3/ASN1_item_d2i_bio.pod
+GENERATE[man/man3/ASN1_item_d2i_bio.3]=man3/ASN1_item_d2i_bio.pod
 DEPEND[html/man3/ASN1_item_sign.html]=man3/ASN1_item_sign.pod
 GENERATE[html/man3/ASN1_item_sign.html]=man3/ASN1_item_sign.pod
 DEPEND[man/man3/ASN1_item_sign.3]=man3/ASN1_item_sign.pod
@@ -2826,6 +2830,7 @@ html/man3/ASN1_STRING_print_ex.html \
 html/man3/ASN1_TIME_set.html \
 html/man3/ASN1_TYPE_get.html \
 html/man3/ASN1_generate_nconf.html \
+html/man3/ASN1_item_d2i_bio.html \
 html/man3/ASN1_item_sign.html \
 html/man3/ASYNC_WAIT_CTX_new.html \
 html/man3/ASYNC_start_job.html \
@@ -3413,6 +3418,7 @@ man/man3/ASN1_STRING_print_ex.3 \
 man/man3/ASN1_TIME_set.3 \
 man/man3/ASN1_TYPE_get.3 \
 man/man3/ASN1_generate_nconf.3 \
+man/man3/ASN1_item_d2i_bio.3 \
 man/man3/ASN1_item_sign.3 \
 man/man3/ASYNC_WAIT_CTX_new.3 \
 man/man3/ASYNC_start_job.3 \
diff --git a/doc/man3/ASN1_item_d2i_bio.pod b/doc/man3/ASN1_item_d2i_bio.pod
new file mode 100644
index 0000000000..4ec7da838c
--- /dev/null
+++ b/doc/man3/ASN1_item_d2i_bio.pod
@@ -0,0 +1,45 @@
+=pod
+
+=head1 NAME
+
+ASN1_item_d2i_bio,
+ASN1_item_i2d_mem_bio
+- decode and encode DER-encoded ASN.1 structures
+
+=head1 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);
+
+=head1 DESCRIPTION
+
+ASN1_item_d2i_bio() decodes the contents of its input BIO I<in>,
+which must be a DER-encoded ASN.1 structure, using the ASN.1 template I<it>
+and places the result in I<*pval> unless I<pval> is NULL.
+If I<in> is NULL it returns NULL, else a pointer to the parsed structure.
+
+ASN1_item_i2d_mem_bio() encodes the given ASN.1 value I<val>
+using the ASN.1 template I<it> and returns the result in a memory BIO.
+
+=head1 RETURN VALUES
+
+ASN1_item_d2i_bio() returns a pointer to an B<ASN1_VALUE> or NULL.
+
+ASN1_item_i2d_mem_bio() returns a pointer to a memory BIO or NULL on error.
+
+=head1 HISTORY
+
+The functions described here were added in OpenSSL 3.0.
+
+=head1 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
+L<https://www.openssl.org/source/license.html>.
+
+=cut