51 lines
1.1 KiB
C
51 lines
1.1 KiB
C
#include <stdlib.h>
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#include <stdint.h>
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#include <sys/time.h>
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#include "iprs.h"
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#include "validity.h"
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#include "sign.h"
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Record* MakeRecord(uint8_t* value, uint8_t* authorKey) {
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struct timeval tv;
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Record* r = calloc(1, sizeof(Record));
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if (r) {
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if (gettimeofday(&tv, NULL) != 0) {
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// gettimeofday failed, cannot continue.
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return NULL;
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}
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r->Value = value;
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/* establish an expiration date */
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r->Expires = tv.tv_sec + EXPIRATION_SECS;
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/* cryptographically sign the record */
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r->Signature = authorKey_Sign(signablePart(r));
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}
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return r;
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}
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int VerifyRecord(Record* r, uint8_t* authorKey) {
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/* always check the signature first */
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int sigok = authorKey_Verify(r->Signature, signablePart(r));
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struct timeval tv;
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if (!sigok || !r) {
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return FALSE; /* sig did not check out! forged record? */
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}
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if (gettimeofday(&tv, NULL) != 0) {
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// gettimeofday failed, cannot continue.
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return FALSE;
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}
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/* check the expiration. */
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if (r->Expires < tv.tv_sec) {
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return FALSE; /* not valid anymore :( */
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}
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/* everything seems ok! */
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return TRUE;
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}
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