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72 lines
1.5 KiB
Plaintext
72 lines
1.5 KiB
Plaintext
=pod
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=head1 NAME
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EVP_md5,
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EVP_md5_sha1
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- MD5 For EVP
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=head1 SYNOPSIS
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#include <openssl/evp.h>
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const EVP_MD *EVP_md5(void);
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const EVP_MD *EVP_md5_sha1(void);
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=head1 DESCRIPTION
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MD5 is a cryptographic hash function standardized in RFC 1321 and designed by
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Ronald Rivest.
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The CMU Software Engineering Institute considers MD5 unsuitable for further
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use since its security has been severely compromised.
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=over 4
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=item EVP_md5()
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The MD5 algorithm which produces a 128-bit output from a given input.
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=item EVP_md5_sha1()
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A hash algorithm of SSL v3 that combines MD5 with SHA-1 as described in RFC
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6101.
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WARNING: this algorithm is not intended for non-SSL usage.
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=back
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=head1 NOTES
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Developers should be aware of the negative performance implications of
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calling these functions multiple times and should consider using
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L<EVP_MD_fetch(3)> instead.
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See L<crypto(7)/Performance> for further information.
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=head1 RETURN VALUES
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These functions return a B<EVP_MD> structure that contains the
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implementation of the message digest. See L<EVP_MD_meth_new(3)> for
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details of the B<EVP_MD> structure.
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=head1 CONFORMING TO
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IETF RFC 1321.
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=head1 SEE ALSO
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L<evp(7)>,
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L<EVP_DigestInit(3)>
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=head1 COPYRIGHT
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Copyright 2017-2023 The OpenSSL Project Authors. All Rights Reserved.
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Licensed under the Apache License 2.0 (the "License"). You may not use
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this file except in compliance with the License. You can obtain a copy
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in the file LICENSE in the source distribution or at
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L<https://www.openssl.org/source/license.html>.
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=cut
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