RP-01/CAN_Bootloader/user/GeelySecurety.aardio
2024-05-06 10:22:27 +08:00

100 lines
2.5 KiB
Plaintext

xorArray = {0xAA,0x50,0x43,0x52}
securetyKeyCalc = function(pucSeed,ucSecurityLevel){
//SeedSec_t cal,key,seed;
var seed = {0,0,0,0};
var key = {0,0,0,0};
var cal = {0,0,0,0};
seed[1]=pucSeed[4];
seed[2]=pucSeed[3];
seed[3]=pucSeed[2];
seed[4]=pucSeed[1];
select(ucSecurityLevel) {
case 0x01 {
var dll = raw.loadDll("/DM_RP_SA.dll",,"cdecl" );
if(dll != null){
FuncDisplay("加载密钥dll成功");
var retlen = raw.buffer(4,0);
var seedraw = raw.buffer(4,0);
var iVariant = raw.buffer(20,0);
var keyraw = raw.buffer(4,0);
seedraw[1] = pucSeed[1];
seedraw[2] = pucSeed[2];
seedraw[3] = pucSeed[3];
seedraw[4] = pucSeed[4];
var ret = 0;
ret = dll.GenerateKeyEx(seedraw,4,0x01,iVariant,keyraw,4,retlen);
FuncDisplay("ret = " ++ ret );
key[1] = keyraw[1];
key[2] = keyraw[2];
key[3] = keyraw[3];
key[4] = keyraw[4];
return key;
}
else {
FuncDisplay("加载密钥dll失败");
}
}
case 0x09 {
var dll = raw.loadDll("/DM_RP_SA.dll",,"cdecl" );
if(dll != null){
FuncDisplay("加载密钥dll成功");
var retlen = raw.buffer(4,0);
var seedraw = raw.buffer(4,0);
var iVariant = raw.buffer(20,0);
var keyraw = raw.buffer(4,0);
seedraw[1] = pucSeed[1];
seedraw[2] = pucSeed[2];
seedraw[3] = pucSeed[3];
seedraw[4] = pucSeed[4];
var ret = 0;
ret = dll.GenerateKeyEx(seedraw,4,0x09,iVariant,keyraw,4,retlen);
FuncDisplay("ret = " ++ ret );
key[1] = keyraw[1];
key[2] = keyraw[2];
key[3] = keyraw[3];
key[4] = keyraw[4];
return key;
}
else {
FuncDisplay("加载密钥dll失败");
}
}
case 0x11 {
/*
cal.byte[0] = seed.byte[0]^xorArray[0];
cal.byte[1] = seed.byte[1]^xorArray[1];
cal.byte[2] = seed.byte[2]^xorArray[2];
cal.byte[3] = seed.byte[3]^xorArray[3];
key.byte[3] = ((cal.byte[1]&0x03)<<6)|(( cal.byte[0]&0xFC)>>2);
key.byte[2] = ((cal.byte[0]&0x03)<<6)|(cal.byte[3]&0x3F);
key.byte[1] = (cal.byte[3]&0xFC)|((cal.byte[2]&0xC0)>>6);
key.byte[0] = (cal.byte[2]&0xFC)|(cal.byte[1]&0x03);
*/
cal[1] = seed[1]^xorArray[1];
cal[2] = seed[2]^xorArray[2];
cal[3] = seed[3]^xorArray[3];
cal[4] = seed[4]^xorArray[4];
key[4] = ((cal[2]&0x03)<<6)|(( cal[1]&0xFC)>>2);
key[3] = ((cal[1]&0x03)<<6)|(cal[4]&0x3F);
key[2] = (cal[4]&0xFC)|((cal[3]&0xC0)>>6);
key[1] = (cal[3]&0xFC)|(cal[2]&0x03);
}
else {
}
}
var pucKey = {0,0,0,0};
pucKey[1]=key[4];
pucKey[2]=key[3];
pucKey[3]=key[2];
pucKey[4]=key[1];
return pucKey;
}