HP OpenVMS Systems Documentation

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HP Open Source Security for OpenVMS Volume 2: HP SSL for OpenVMS > CRYPTO Application Programming Interface (API) Reference

RIPEMD160

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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);
void RIPEMD160_Init(RIPEMD160_CTX *c);
void RIPEMD160_Update(RIPEMD_CTX *c, const void *data, unsigned long len);
void 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). If md is NULL, the digest is placed in a static array.

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() do not return values.

CONFORMING TO

ISO/IEC 10118-3 (draft) (??)

SEE ALSO

sha(3), hmac(3), EVP_DigestInit(3)

HISTORY

RIPEMD160(), RIPEMD160_Init(), RIPEMD160_Update() and RIPEMD160_Final() are available since SSLeay 0.9.0.