87 lines
2.1 KiB
C
87 lines
2.1 KiB
C
#include "../../lib/md2_impls/md2_3.h"
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#include "../../lib/md2_impls/md2_common.h"
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struct thread_args {
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size_t len;
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const uint8_t* buf;
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};
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void process_nothread_hash(size_t len, const uint8_t buf[len],
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uint8_t messageDigestBuf[48]) {
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for (size_t i = 0; i < (len + 16) / 16 - 1; i++) {
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md2_first_loop(buf, messageDigestBuf, i);
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md2_second_loop(messageDigestBuf);
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}
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}
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void* process_hash(void* threadArgs) {
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struct thread_args* args = (struct thread_args*)threadArgs;
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uint8_t* messageDigestBuf = calloc(48, sizeof(uint8_t));
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if (messageDigestBuf == NULL) {
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pthread_exit(NULL);
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}
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process_nothread_hash(args->len, args->buf, messageDigestBuf);
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pthread_exit(messageDigestBuf);
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}
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void* process_checksum(void* threasdArgs) {
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struct thread_args* args = (struct thread_args*)threasdArgs;
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uint8_t* checksum = calloc(16, sizeof(uint8_t));
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if (checksum == NULL) {
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pthread_exit(NULL);
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}
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md2_checksum_with_target(args->len, args->buf, checksum);
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pthread_exit(checksum);
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}
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void md2_hash_3(size_t len, const uint8_t buf[len], uint8_t out[16]) {
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uint8_t* newBuf = md2_add_padding_and_space_for_checksum(buf, &len);
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if (newBuf == NULL) {
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return;
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}
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pthread_t thread_1, thread_2;
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struct thread_args thread_args = {len, newBuf};
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if (pthread_create(&thread_1, NULL, process_hash, (void*)&thread_args) != 0) {
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printf("Error creating thread 1\n");
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if (errno == 0) errno = EAGAIN;
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return;
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}
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if (pthread_create(&thread_2, NULL, process_checksum, (void*)&thread_args) !=
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0) {
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printf("Error creating thread 2\n");
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if (errno == 0) errno = EAGAIN;
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return;
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}
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u_int8_t* messageDigestBuf;
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u_int8_t* checksum;
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if (pthread_join(thread_1, (void**)&messageDigestBuf) != 0) {
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printf("Error joining thread 1\n");
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if (errno == 0) errno = EINVAL;
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return;
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}
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if (pthread_join(thread_2, (void**)&checksum) != 0) {
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printf("Error joining thread 2\n");
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if (errno == 0) errno = EINVAL;
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return;
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}
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process_nothread_hash(16, checksum, messageDigestBuf);
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END_MARK
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memcpy(out, messageDigestBuf, 16);
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free(messageDigestBuf);
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free(checksum);
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free(newBuf);
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}
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