mirror of https://github.com/commaai/panda.git
35 lines
741 B
C
35 lines
741 B
C
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/*
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gcc -DTEST_RSA test_rsa.c ../crypto/rsa.c ../crypto/sha.c && ./a.out
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#define MAX_LEN 0x40000
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char buf[MAX_LEN];
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#include "../crypto/sha.h"
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#include "../crypto/rsa.h"
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#include "../obj/cert.h"
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int main() {
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FILE *f = fopen("../obj/panda.bin", "rb");
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int tlen = fread(buf, 1, MAX_LEN, f);
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fclose(f);
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printf("read %d\n", tlen);
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uint32_t *_app_start = (uint32_t *)buf;
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int len = _app_start[0];
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char digest[SHA_DIGEST_SIZE];
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SHA_hash(&_app_start[1], len-4, digest);
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printf("SHA hash done\n");
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if (!RSA_verify(&rsa_key, ((void*)&_app_start[0]) + len, RSANUMBYTES, digest, SHA_DIGEST_SIZE)) {
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printf("RSA fail\n");
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} else {
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printf("RSA match!!!\n");
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}
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return 0;
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}
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