85 lines
2.2 KiB
C
85 lines
2.2 KiB
C
/* Copyright (c) (2016,2017,2019) Apple Inc. All rights reserved.
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*
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* corecrypto is licensed under Apple Inc.’s Internal Use License Agreement (which
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* is contained in the License.txt file distributed with corecrypto) and only to
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* people who accept that license. IMPORTANT: Any license rights granted to you by
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* Apple Inc. (if any) are limited to internal use within your organization only on
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* devices and computers you own or control, for the sole purpose of verifying the
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* security characteristics and correct functioning of the Apple Software. You may
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* not, directly or indirectly, redistribute the Apple Software or any portions thereof.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <zlib.h>
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#include "thermalCrypto.h"
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#include <Accelerate/ClockServices.h>
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// extern void ccdigest_update(const struct ccdigest_info *di, ccdigest_ctx_t ctx, size_t len, const void *data);
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typedef struct
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{
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unsigned int adler;
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unsigned char *InputBuffer;
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unsigned int length;
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} Parameters;
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static void Driver(unsigned int iterations, void *parameters)
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{
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Parameters *p = (Parameters *) parameters;
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while (iterations--) {
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p -> adler = (unsigned int) adler32(p->adler, p->InputBuffer, p->length);
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}
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}
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extern uint32_t single_test;
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void thermalAdler32(uint32_t ITERATIONS, uint32_t data_size)
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{
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uint32_t i;
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double TotalTime = 0;
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unsigned int adler = 1;
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uint8_t *msg;
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if (!(msg = malloc(data_size))) {
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fprintf(stderr,"error : malloc %d \n", data_size);
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exit(1);
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}
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if (!single_test)
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for (i=0;i<data_size;i++) msg[i] = (uint8_t)arc4random();
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if ((ITERATIONS==1000)&&(data_size==4096))
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for (i=0;i<data_size;i++) msg[i] = (uint8_t)i;
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// Check for tag used to mark uncompressed blocks.
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{
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Parameters parameters =
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{
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.adler = adler,
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.InputBuffer = msg,
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.length = data_size,
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};
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TotalTime += MeasureNetTimeInCPUCycles(Driver, ITERATIONS, ¶meters, 1);
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adler = parameters.adler;
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}
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if (!single_test) {
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if ((ITERATIONS==1000)&&(data_size==4096)) {
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if (adler!=0xed486d57) fprintf(stderr,"error : adler32 computation is wrong\n");
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}
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}
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printf(" adler32 : %.2f\n", (TotalTime/data_size));
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free(msg);
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}
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