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67 lines
1.7 KiB
67 lines
1.7 KiB
14 years ago
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=pod
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=head1 NAME
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RIPEMD160, RIPEMD160_Init, RIPEMD160_Update, RIPEMD160_Final -
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RIPEMD-160 hash function
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=head1 SYNOPSIS
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#include <openssl/ripemd.h>
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unsigned char *RIPEMD160(const unsigned char *d, unsigned long n,
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unsigned char *md);
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int RIPEMD160_Init(RIPEMD160_CTX *c);
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int RIPEMD160_Update(RIPEMD_CTX *c, const void *data,
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unsigned long len);
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int RIPEMD160_Final(unsigned char *md, RIPEMD160_CTX *c);
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=head1 DESCRIPTION
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RIPEMD-160 is a cryptographic hash function with a
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160 bit output.
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RIPEMD160() computes the RIPEMD-160 message digest of the B<n>
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bytes at B<d> and places it in B<md> (which must have space for
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RIPEMD160_DIGEST_LENGTH == 20 bytes of output). If B<md> is NULL, the digest
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is placed in a static array.
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The following functions may be used if the message is not completely
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stored in memory:
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RIPEMD160_Init() initializes a B<RIPEMD160_CTX> structure.
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RIPEMD160_Update() can be called repeatedly with chunks of the message to
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be hashed (B<len> bytes at B<data>).
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RIPEMD160_Final() places the message digest in B<md>, which must have
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space for RIPEMD160_DIGEST_LENGTH == 20 bytes of output, and erases
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the B<RIPEMD160_CTX>.
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Applications should use the higher level functions
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L<EVP_DigestInit(3)|EVP_DigestInit(3)> etc. instead of calling the
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hash functions directly.
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=head1 RETURN VALUES
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RIPEMD160() returns a pointer to the hash value.
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RIPEMD160_Init(), RIPEMD160_Update() and RIPEMD160_Final() return 1 for
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success, 0 otherwise.
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=head1 CONFORMING TO
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ISO/IEC 10118-3 (draft) (??)
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=head1 SEE ALSO
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L<sha(3)|sha(3)>, L<hmac(3)|hmac(3)>, L<EVP_DigestInit(3)|EVP_DigestInit(3)>
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=head1 HISTORY
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RIPEMD160(), RIPEMD160_Init(), RIPEMD160_Update() and
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RIPEMD160_Final() are available since SSLeay 0.9.0.
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=cut
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