1=pod
2
3=head1 NAME
4
5RIPEMD160, RIPEMD160_Init, RIPEMD160_Update, RIPEMD160_Final -
6RIPEMD-160 hash function
7
8=head1 SYNOPSIS
9
10 #include <openssl/ripemd.h>
11
12 unsigned char *RIPEMD160(const unsigned char *d, unsigned long n,
13                          unsigned char *md);
14
15 int RIPEMD160_Init(RIPEMD160_CTX *c);
16 int RIPEMD160_Update(RIPEMD160_CTX *c, const void *data, unsigned long len);
17 int RIPEMD160_Final(unsigned char *md, RIPEMD160_CTX *c);
18
19=head1 DESCRIPTION
20
21RIPEMD-160 is a cryptographic hash function with a
22160 bit output.
23
24RIPEMD160() computes the RIPEMD-160 message digest of the B<n>
25bytes at B<d> and places it in B<md> (which must have space for
26RIPEMD160_DIGEST_LENGTH == 20 bytes of output). If B<md> is NULL, the digest
27is placed in a static array.
28
29The following functions may be used if the message is not completely
30stored in memory:
31
32RIPEMD160_Init() initializes a B<RIPEMD160_CTX> structure.
33
34RIPEMD160_Update() can be called repeatedly with chunks of the message to
35be hashed (B<len> bytes at B<data>).
36
37RIPEMD160_Final() places the message digest in B<md>, which must have
38space for RIPEMD160_DIGEST_LENGTH == 20 bytes of output, and erases
39the B<RIPEMD160_CTX>.
40
41=head1 RETURN VALUES
42
43RIPEMD160() returns a pointer to the hash value.
44
45RIPEMD160_Init(), RIPEMD160_Update() and RIPEMD160_Final() return 1 for
46success, 0 otherwise.
47
48=head1 NOTE
49
50Applications should use the higher level functions
51L<EVP_DigestInit(3)> etc. instead of calling these
52functions directly.
53
54=head1 CONFORMING TO
55
56ISO/IEC 10118-3:2016 Dedicated Hash-Function 1 (RIPEMD-160).
57
58=head1 SEE ALSO
59
60L<EVP_DigestInit(3)>
61
62=head1 COPYRIGHT
63
64Copyright 2000-2019 The OpenSSL Project Authors. All Rights Reserved.
65
66Licensed under the OpenSSL license (the "License").  You may not use
67this file except in compliance with the License.  You can obtain a copy
68in the file LICENSE in the source distribution or at
69L<https://www.openssl.org/source/license.html>.
70
71=cut
72