ObjXMPP  Diff

	[hashO retain];
	[pool release];

	return [[hashO autorelease] digest];
}

- (OFDataArray*)XMPP_hiWithData: (OFDataArray*)str
			   salt: (OFDataArray*)salt
		 iterationCount: (intmax_t)i
{
	OFAutoreleasePool *pool = [[OFAutoreleasePool alloc] init];
	size_t digestSize = [_hashType digestSize];
	uint8_t *result = NULL, *u, *uOld;
	intmax_t j, k;
	OFDataArray *salty, *tmp, *ret;

	result = [self allocMemoryWithSize: digestSize];

	@try {
		memset(result, 0, digestSize);

		salty = [[salt copy] autorelease];
		[salty addItems: "\0\0\0\1"
			  count: 4];

		uOld = [self XMPP_HMACWithKey: str
					 data: salty];

		for (j = 0; j < digestSize; j++)
			result[j] ^= uOld[j];

		for (j = 0; j < i - 1; j++) {
			tmp = [[OFDataArray alloc] init];
			[tmp addItems: uOld
				count: digestSize];

			[pool releaseObjects]; // releases uOld and previous tmp
			[tmp autorelease];

			u = [self XMPP_HMACWithKey: str