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Code Issues Releases Activity

add hash size validation

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This commit is contained in:
jimzrt 2019-10-07 20:11:18 +02:00
parent e81b1e62c7
commit e7a4f341d9
1 changed files with 31 additions and 11 deletions
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40
source/incognito/incognito.c
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@ -662,38 +662,58 @@ out:
return result; return result;
} }
u32 certSize() s32 getClientCertSize()
{ {
u32 buffer; s32 buffer;
readData((u8 *)&buffer, 0x0AD0, sizeof(buffer), NULL); if(!RETRY(readData((u8 *)&buffer, 0x0AD0, sizeof(buffer), NULL))){
return -1;
}
return buffer; return buffer;
} }
u32 calibrationDataSize() s32 getCalibrationDataSize()
{ {
u32 buffer; s32 buffer;
readData((u8 *)&buffer, 0x08, sizeof(buffer), NULL); if(!RETRY(readData((u8 *)&buffer, 0x08, sizeof(buffer), NULL))){
return -1;
}
return buffer; return buffer;
} }
bool writeCal0Hash() bool writeCal0Hash()
{ {
return writeHash(0x20, 0x40, calibrationDataSize()); s32 calibrationSize = getCalibrationDataSize();
if(calibrationSize == -1)
return false;
return writeHash(0x20, 0x40, calibrationSize);
} }
bool writeClientCertHash() bool writeClientCertHash()
{ {
return writeHash(0x12E0, 0xAE0, certSize()); s32 certSize = getClientCertSize();
if(certSize == -1)
return false;
return writeHash(0x12E0, 0xAE0, certSize);
} }
bool verifyCal0Hash(u8 *blob) bool verifyCal0Hash(u8 *blob)
{ {
return verifyHash(0x20, 0x40, calibrationDataSize(), blob); s32 calibrationSize = getCalibrationDataSize();
if(calibrationSize == -1)
return false;
return verifyHash(0x20, 0x40, calibrationSize, blob);
} }
bool verifyClientCertHash(u8 *blob) bool verifyClientCertHash(u8 *blob)
{ {
return verifyHash(0x12E0, 0xAE0, certSize(), blob); s32 certSize = getClientCertSize();
if(certSize == -1)
return false;
return verifyHash(0x12E0, 0xAE0, certSize, blob);
} }
bool verifyProdinfo(u8 *blob) bool verifyProdinfo(u8 *blob)