1EVP_MDC2(3ossl)                     OpenSSL                    EVP_MDC2(3ossl)
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NAME

6       EVP_mdc2 - MDC-2 For EVP
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SYNOPSIS

9        #include <openssl/evp.h>
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11        const EVP_MD *EVP_mdc2(void);
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DESCRIPTION

14       MDC-2 (Modification Detection Code 2 or Meyer-Schilling) is a
15       cryptographic hash function based on a block cipher. This
16       implementation is only available with the legacy provider.
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18       EVP_mdc2()
19           The MDC-2DES algorithm of using MDC-2 with the DES block cipher. It
20           produces a 128-bit output from a given input.
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NOTES

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

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

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

38       evp(7), provider(7), EVP_DigestInit(3)
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41       Copyright 2017-2023 The OpenSSL Project Authors. All Rights Reserved.
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43       Licensed under the Apache License 2.0 (the "License").  You may not use
44       this file except in compliance with the License.  You can obtain a copy
45       in the file LICENSE in the source distribution or at
46       <https://www.openssl.org/source/license.html>.
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503.1.1                             2023-08-31                   EVP_MDC2(3ossl)
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