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Separate key algorithm and core code for rp2 and rp3

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This commit is contained in:
QCDLZCLW3K
2022-05-12 10:25:53 +09:00
parent 926bbf2e10
commit 721897d7b0
3 changed files with 53 additions and 41 deletions
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src/main/security/rp3.c
+11 -10
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@@ -1,10 +1,11 @@
#include <string.h>
#include "security/rp2.h"
#include "security/rp3.h"
#include "security/rp-util.h"
#include "security/util.h"
#include "util/crc.h"
#include "util/crypto.h"
#include "util/log.h"
void security_rp3_generate_signed_eeprom_data(
@@ -16,6 +17,7 @@ void security_rp3_generate_signed_eeprom_data(
{
uint8_t sign_key_tmp[8];
uint8_t plug_id_reversed[8];
const uint8_t *plug_mcode_raw = (const uint8_t *) plug_mcode;
log_assert(sign_key);
log_assert(plug_mcode);
@@ -23,24 +25,23 @@ void security_rp3_generate_signed_eeprom_data(
log_assert(out);
memcpy(sign_key_tmp, sign_key, sizeof(sign_key_tmp));
if (type == SECURITY_RP_UTIL_RP_TYPE_BLACK) {
for (int i = 0; i < sizeof(sign_key_tmp); i++) {
sign_key_tmp[i] ^= ((const uint8_t *) plug_mcode)[i];
sign_key_tmp[i] ^= plug_mcode_raw[i];
}
}
security_util_8_to_6_encode(sign_key_tmp, sign_key_tmp);
for (int i = 0; i < sizeof(plug_id_reversed); i++) {
plug_id_reversed[i] = plug_id->id[7 - i];
}
security_util_8_to_6_encode(
(const uint8_t *) plug_mcode, out->packed_payload);
memset(out->zeros, 0, sizeof(out->zeros));
security_rp2_generate_signed_eeprom_data_core(
sign_key_tmp,
plug_mcode_raw,
plug_id_reversed,
out->signature,
out->packed_payload);
security_rp2_create_signature(
plug_id_reversed, sign_key_tmp, out->signature);
memset(out->zeros, 0, sizeof(out->zeros));
out->crc = crc8((uint8_t *) out, sizeof(*out) - 1, 0);
}