---
name: "OpenSSL_add_all_algorithms"
section: "3ssl"
platform: "linux"
package: "openssl"
version: "3.6.5-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/OpenSSL_add_all_algorithms"
---

# OpenSSL\_add\_all\_algorithms(3ssl)

add algorithms to internal table

## NAME

OpenSSL\_add\_all\_algorithms, OpenSSL\_add\_all\_ciphers, OpenSSL\_add\_all\_digests, EVP\_cleanup - add algorithms to internal table

## SYNOPSIS

```
 #include <openssl/evp.h>
```

The following functions have been deprecated since OpenSSL 1.1.0, and can be hidden entirely by defining **OPENSSL\_API\_COMPAT** with a suitable version value, see **openssl\_user\_macros**(7):

```
 void OpenSSL_add_all_algorithms(void);
 void OpenSSL_add_all_ciphers(void);
 void OpenSSL_add_all_digests(void);
 void EVP_cleanup(void);
```

## DESCRIPTION

OpenSSL keeps an internal table of digest algorithms and ciphers. It uses this table to lookup ciphers via functions such as **EVP\_get\_cipher\_byname()**.

**OpenSSL\_add\_all\_digests()** adds all digest algorithms to the table.

**OpenSSL\_add\_all\_algorithms()** adds all algorithms to the table (digests and ciphers).

**OpenSSL\_add\_all\_ciphers()** adds all encryption algorithms to the table including password based encryption algorithms.

In versions prior to 1.1.0 **EVP\_cleanup()** removed all ciphers and digests from the table. It no longer has any effect in OpenSSL 1.1.0.

## RETURN VALUES

None of the functions return a value.

## SEE ALSO

**evp**(7), **EVP\_DigestInit**(3), **EVP\_EncryptInit**(3)

## HISTORY

The **OpenSSL\_add\_all\_algorithms()**, **OpenSSL\_add\_all\_ciphers()**, **OpenSSL\_add\_all\_digests()**, and **EVP\_cleanup()**, functions were deprecated in OpenSSL 1.1.0 by **OPENSSL\_init\_crypto()** and should not be used.

## COPYRIGHT

Copyright 2000-2020 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\>.