NAME
RIPEMD160,
RIPEMD160_Init,
RIPEMD160_Update,
RIPEMD160_Final —
RIPEMD-160 hash function
SYNOPSIS
#include
<openssl/ripemd.h>
unsigned char *
RIPEMD160(const unsigned char
*d, unsigned long n, unsigned
char *md);
int
RIPEMD160_Init(RIPEMD160_CTX
*c);
int
RIPEMD160_Update(RIPEMD160_CTX
*c, const void *data, unsigned
long len);
int
RIPEMD160_Final(unsigned char
*md, RIPEMD160_CTX *c);
DESCRIPTION
RIPEMD-160 is a cryptographic hash function with a 160-bit output.
RIPEMD160()
computes the RIPEMD-160 message digest of the n bytes
at d and places it in md, which
must have space for RIPEMD160_DIGEST_LENGTH == 20
bytes of output.
The following functions may be used if the message is not completely stored in memory:
RIPEMD160_Init()
initializes a RIPEMD160_CTX structure.
RIPEMD160_Update()
can be called repeatedly with chunks of the message to be hashed
(len bytes at
data).
RIPEMD160_Final()
places the message digest in md, which must have space
for RIPEMD160_DIGEST_LENGTH == 20 bytes of output,
and erases the RIPEMD160_CTX.
Applications should use the higher level functions EVP_DigestInit(3) etc. instead of calling the hash functions directly.
RETURN VALUES
RIPEMD160() returns a pointer to the hash
value.
RIPEMD160_Init(),
RIPEMD160_Update(), and
RIPEMD160_Final() return 1 for success or 0
otherwise.
SEE ALSO
STANDARDS
ISO/IEC 10118-3:2004/Cor 1:2011 Hash-functions — Part 3: Dedicated hash-functions Clause 7: RIPEMD-160
HISTORY
RIPEMD160(),
RIPEMD160_Init(),
RIPEMD160_Update(), and
RIPEMD160_Final() first appeared in SSLeay 0.9.0 and
have been available since OpenBSD 2.4.
CAVEATS
Other implementations allow md in
RIPEMD160() to be NULL and
return a static array, which is not thread safe.