| 1 | =pod
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| 2 |
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| 3 | =head1 NAME
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| 4 |
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| 5 | RIPEMD160, RIPEMD160_Init, RIPEMD160_Update, RIPEMD160_Final -
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| 6 | RIPEMD-160 hash function
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| 7 |
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| 8 | =head1 SYNOPSIS
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| 9 |
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| 10 | #include <openssl/ripemd.h>
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| 11 |
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| 12 | unsigned char *RIPEMD160(const unsigned char *d, unsigned long n,
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| 13 | unsigned char *md);
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| 14 |
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| 15 | int RIPEMD160_Init(RIPEMD160_CTX *c);
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| 16 | int RIPEMD160_Update(RIPEMD160_CTX *c, const void *data, unsigned long len);
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| 17 | int RIPEMD160_Final(unsigned char *md, RIPEMD160_CTX *c);
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| 18 |
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| 19 | =head1 DESCRIPTION
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| 20 |
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| 21 | RIPEMD-160 is a cryptographic hash function with a
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| 22 | 160 bit output.
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| 23 |
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| 24 | RIPEMD160() computes the RIPEMD-160 message digest of the B<n>
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| 25 | bytes at B<d> and places it in B<md> (which must have space for
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| 26 | RIPEMD160_DIGEST_LENGTH == 20 bytes of output). If B<md> is NULL, the digest
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| 27 | is placed in a static array.
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| 28 |
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| 29 | The following functions may be used if the message is not completely
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| 30 | stored in memory:
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| 31 |
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| 32 | RIPEMD160_Init() initializes a B<RIPEMD160_CTX> structure.
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| 33 |
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| 34 | RIPEMD160_Update() can be called repeatedly with chunks of the message to
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| 35 | be hashed (B<len> bytes at B<data>).
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| 36 |
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| 37 | RIPEMD160_Final() places the message digest in B<md>, which must have
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| 38 | space for RIPEMD160_DIGEST_LENGTH == 20 bytes of output, and erases
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| 39 | the B<RIPEMD160_CTX>.
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| 40 |
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| 41 | =head1 RETURN VALUES
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| 42 |
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| 43 | RIPEMD160() returns a pointer to the hash value.
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| 44 |
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| 45 | RIPEMD160_Init(), RIPEMD160_Update() and RIPEMD160_Final() return 1 for
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| 46 | success, 0 otherwise.
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| 47 |
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| 48 | =head1 NOTE
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| 49 |
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| 50 | Applications should use the higher level functions
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| 51 | L<EVP_DigestInit(3)> etc. instead of calling these
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| 52 | functions directly.
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| 53 |
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| 54 | =head1 CONFORMING TO
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| 55 |
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| 56 | ISO/IEC 10118-3:2016 Dedicated Hash-Function 1 (RIPEMD-160).
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| 57 |
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| 58 | =head1 SEE ALSO
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| 59 |
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| 60 | L<EVP_DigestInit(3)>
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| 61 |
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| 62 | =head1 COPYRIGHT
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| 63 |
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| 64 | Copyright 2000-2019 The OpenSSL Project Authors. All Rights Reserved.
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| 65 |
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| 66 | Licensed under the OpenSSL license (the "License"). You may not use
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| 67 | this file except in compliance with the License. You can obtain a copy
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| 68 | in the file LICENSE in the source distribution or at
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| 69 | L<https://www.openssl.org/source/license.html>.
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| 70 |
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| 71 | =cut
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