# ossl_store(7ssl) - man - phpman

[OSSL_STORE(7SSL)](https://www.chedong.com/phpMan.php/man/OSSLSTORE/7SSL/markdown)                               OpenSSL                              [OSSL_STORE(7SSL)](https://www.chedong.com/phpMan.php/man/OSSLSTORE/7SSL/markdown)



## NAME
       ossl_store - Store retrieval functions

## SYNOPSIS
       #include <openssl/store.h>

## DESCRIPTION
### General
       A STORE is a layer of functionality to retrieve a number of supported objects from a
       repository of any kind, addressable as a filename or as a URI.

       The functionality supports the pattern "open a channel to the repository", "loop and retrieve
       one object at a time", and "finish up by closing the channel".

       The retrieved objects are returned as a wrapper type **OSSL**___**STORE**___**INFO**, from which an OpenSSL
       type can be retrieved.

### URI schemes and loaders
       Support for a URI scheme is called a STORE "loader", and can be added dynamically from the
       calling application or from a loadable engine.

       Support for the 'file' scheme is built into "libcrypto".  See **ossl**___**[store-file**(7)](https://www.chedong.com/phpMan.php/man/store-file/7/markdown) for more
       information.

   **UI**___**METHOD** **and** **pass** **phrases**
       The **OSS**___**STORE** API does nothing to enforce any specific format or encoding on the pass phrase
       that the **UI**___**METHOD** provides.  However, the pass phrase is expected to be UTF-8 encoded.  The
       result of any other encoding is undefined.

## EXAMPLES
### A generic call
        OSSL_STORE_CTX *ctx = OSSL_STORE_open("file:/foo/bar/data.pem");

        /*
         * OSSL_STORE_eof() simulates file semantics for any repository to signal
         * that no more data can be expected
         */
        while (!OSSL_STORE_eof(ctx)) {
            OSSL_STORE_INFO *info = OSSL_STORE_load(ctx);

            /*
             * Do whatever is necessary with the OSSL_STORE_INFO,
             * here just one example
             */
            switch (OSSL_STORE_INFO_get_type(info)) {
            case OSSL_STORE_INFO_CERT:
                /* Print the X.509 certificate text */
                X509_print_fp(stdout, OSSL_STORE_INFO_get0_CERT(info));
                /* Print the X.509 certificate PEM output */
                PEM_write_X509(stdout, OSSL_STORE_INFO_get0_CERT(info));
                break;
            }
        }

        OSSL_STORE_close(ctx);

## SEE ALSO
       **OSSL**___**STORE**___**[INFO**(3)](https://www.chedong.com/phpMan.php/man/INFO/3/markdown), **OSSL**___**STORE**___**[LOADER**(3)](https://www.chedong.com/phpMan.php/man/LOADER/3/markdown), **OSSL**___**STORE**___**[open**(3)](https://www.chedong.com/phpMan.php/man/open/3/markdown), **OSSL**___**STORE**___**[expect**(3)](https://www.chedong.com/phpMan.php/man/expect/3/markdown),
       **OSSL**___**STORE**___**[SEARCH**(3)](https://www.chedong.com/phpMan.php/man/SEARCH/3/markdown)

## COPYRIGHT
       Copyright 2016-2021 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>>.



3.0.2                                        2026-04-07                             [OSSL_STORE(7SSL)](https://www.chedong.com/phpMan.php/man/OSSLSTORE/7SSL/markdown)