NAME

       EVP_mdc2 - MDC-2 For EVP

SYNOPSIS

        #include <openssl/evp.h>

        const EVP_MD *EVP_mdc2(void);

DESCRIPTION

       MDC-2 (Modification Detection Code 2 or Meyer-Schilling) is a cryptographic hash function
       based on a block cipher. This implementation is only available with the legacy provider.

       EVP_mdc2()
           The MDC-2DES algorithm of using MDC-2 with the DES block cipher. It produces a 128-bit
           output from a given input.

NOTES

       Developers should be aware of the negative performance implications of calling this
       function multiple times and should consider using EVP_MD_fetch(3) instead.  See
       "Performance" in crypto(7) for further information.

RETURN VALUES

       These functions return a EVP_MD structure that contains the implementation of the message
       digest. See EVP_MD_meth_new(3) for details of the EVP_MD structure.

CONFORMING TO

       ISO/IEC 10118-2:2000 Hash-Function 2, with DES as the underlying block cipher.

SEE ALSO

       evp(7), provider(7), EVP_DigestInit(3)

COPYRIGHT

       Copyright 2017-2023 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>.