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Diffstat (limited to 'upstream/archlinux/man3/MDC2_Init.3ssl')
| -rw-r--r-- | upstream/archlinux/man3/MDC2_Init.3ssl | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/upstream/archlinux/man3/MDC2_Init.3ssl b/upstream/archlinux/man3/MDC2_Init.3ssl new file mode 100644 index 00000000..0e3dff52 --- /dev/null +++ b/upstream/archlinux/man3/MDC2_Init.3ssl @@ -0,0 +1,134 @@ +.\" -*- mode: troff; coding: utf-8 -*- +.\" Automatically generated by Pod::Man 5.01 (Pod::Simple 3.43) +.\" +.\" Standard preamble: +.\" ======================================================================== +.de Sp \" Vertical space (when we can't use .PP) +.if t .sp .5v +.if n .sp +.. +.de Vb \" Begin verbatim text +.ft CW +.nf +.ne \\$1 +.. +.de Ve \" End verbatim text +.ft R +.fi +.. +.\" \*(C` and \*(C' are quotes in nroff, nothing in troff, for use with C<>. +.ie n \{\ +. ds C` "" +. ds C' "" +'br\} +.el\{\ +. ds C` +. ds C' +'br\} +.\" +.\" Escape single quotes in literal strings from groff's Unicode transform. +.ie \n(.g .ds Aq \(aq +.el .ds Aq ' +.\" +.\" If the F register is >0, we'll generate index entries on stderr for +.\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index +.\" entries marked with X<> in POD. Of course, you'll have to process the +.\" output yourself in some meaningful fashion. +.\" +.\" Avoid warning from groff about undefined register 'F'. +.de IX +.. +.nr rF 0 +.if \n(.g .if rF .nr rF 1 +.if (\n(rF:(\n(.g==0)) \{\ +. if \nF \{\ +. de IX +. tm Index:\\$1\t\\n%\t"\\$2" +.. +. if !\nF==2 \{\ +. nr % 0 +. nr F 2 +. \} +. \} +.\} +.rr rF +.\" ======================================================================== +.\" +.IX Title "MDC2_INIT 3ssl" +.TH MDC2_INIT 3ssl 2024-01-30 3.2.1 OpenSSL +.\" For nroff, turn off justification. Always turn off hyphenation; it makes +.\" way too many mistakes in technical documents. +.if n .ad l +.nh +.SH NAME +MDC2, MDC2_Init, MDC2_Update, MDC2_Final \- MDC2 hash function +.SH SYNOPSIS +.IX Header "SYNOPSIS" +.Vb 1 +\& #include <openssl/mdc2.h> +.Ve +.PP +The following functions have been deprecated since OpenSSL 3.0, and can be +hidden entirely by defining \fBOPENSSL_API_COMPAT\fR with a suitable version value, +see \fBopenssl_user_macros\fR\|(7): +.PP +.Vb 2 +\& unsigned char *MDC2(const unsigned char *d, unsigned long n, +\& unsigned char *md); +\& +\& int MDC2_Init(MDC2_CTX *c); +\& int MDC2_Update(MDC2_CTX *c, const unsigned char *data, +\& unsigned long len); +\& int MDC2_Final(unsigned char *md, MDC2_CTX *c); +.Ve +.SH DESCRIPTION +.IX Header "DESCRIPTION" +All of the functions described on this page are deprecated. +Applications should instead use \fBEVP_DigestInit_ex\fR\|(3), \fBEVP_DigestUpdate\fR\|(3) +and \fBEVP_DigestFinal_ex\fR\|(3). +.PP +MDC2 is a method to construct hash functions with 128 bit output from +block ciphers. These functions are an implementation of MDC2 with +DES. +.PP +\&\fBMDC2()\fR computes the MDC2 message digest of the \fBn\fR +bytes at \fBd\fR and places it in \fBmd\fR (which must have space for +MDC2_DIGEST_LENGTH == 16 bytes of output). If \fBmd\fR is NULL, the digest +is placed in a static array. +.PP +The following functions may be used if the message is not completely +stored in memory: +.PP +\&\fBMDC2_Init()\fR initializes a \fBMDC2_CTX\fR structure. +.PP +\&\fBMDC2_Update()\fR can be called repeatedly with chunks of the message to +be hashed (\fBlen\fR bytes at \fBdata\fR). +.PP +\&\fBMDC2_Final()\fR places the message digest in \fBmd\fR, which must have space +for MDC2_DIGEST_LENGTH == 16 bytes of output, and erases the \fBMDC2_CTX\fR. +.PP +Applications should use the higher level functions +\&\fBEVP_DigestInit\fR\|(3) etc. instead of calling the +hash functions directly. +.SH "RETURN VALUES" +.IX Header "RETURN VALUES" +\&\fBMDC2()\fR returns a pointer to the hash value. +.PP +\&\fBMDC2_Init()\fR, \fBMDC2_Update()\fR and \fBMDC2_Final()\fR return 1 for success, 0 otherwise. +.SH "CONFORMING TO" +.IX Header "CONFORMING TO" +ISO/IEC 10118\-2:2000 Hash-Function 2, with DES as the underlying block cipher. +.SH "SEE ALSO" +.IX Header "SEE ALSO" +\&\fBEVP_DigestInit\fR\|(3) +.SH HISTORY +.IX Header "HISTORY" +All of these functions were deprecated in OpenSSL 3.0. +.SH COPYRIGHT +.IX Header "COPYRIGHT" +Copyright 2000\-2020 The OpenSSL Project Authors. All Rights Reserved. +.PP +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>. |