07-20-2009
I don't know of any read-to-use utility, but the OpenSSL library provides a
hmac function, which might be what you need.
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LEARN ABOUT MOJAVE
cchmac
CCHMAC(3) BSD Library Functions Manual CCHMAC(3)
NAME
CCHmacInit, CCHmacUpdate, CCHmacFinal, CCHmac -- Common HMAC Algorithm Interfaces
LIBRARY
These functions are found in libSystem.
SYNOPSIS
#include <CommonCrypto/CommonHMAC.h>
void
CCHmacInit(CCHmacContext *ctx, CCHmacAlgorithm algorithm, const void *key, size_t keyLength);
void
CCHmacUpdate(CCHmacContext *ctx, const void *data, size_t dataLength);
void
CCHmacFinal(CCHmacContext *ctx, void *macOut);
void
CCHmac(CCHmacAlgorithm algorithm, const void *key, size_t keyLength, const void *data, size_t dataLength, void *macOut);
DESCRIPTION
This interface provides access to a number of HMAC algorithms. The following algorithms are available:
kCCHmacAlgSHA1 - HMAC with SHA1 digest
kCCHmacAlgMD5 - HMAC with MD5 digest
kCCHmacAlgSHA256 - HMAC with SHA256 digest
kCCHmacAlgSHA384 - HMAC with SHA384 digest
kCCHmacAlgSHA224 - HMAC with SHA224 digest
kCCHmacAlgSHA512 - HMAC with SHA512 digest
The object declared in this interface, CCHmacContext, provides a handle for use with the CCHmacInit() CCHmacUpdate() and CCHmacFinal() calls
to complete the HMAC operation. In addition there is a one shot function, CCHmac() that performs a complete HMAC on a single piece of data.
HISTORY
These functions are available in OS X 10.5 and later.
SEE ALSO
CC_MD5(3cc), CC_SHA(3cc), CC_crypto(3cc), CCCrypto(3cc)
BSD
March 22, 2007 BSD