Ask questions and find answers on STM32 security frameworks and tools, including cryptographic libraries, TrustZone, and the Secure Manager.
Posted on January 24, 2018 at 15:19Hi,we are facing troubles with the readout Protection on the STM32L0: when you secure the chip and then want to do a firmware update, the Settings and serial numbers in EEPROM also are erased. Can we somehow protec...
Posted on January 19, 2018 at 11:55Hello friends.I created CRC calculator, but I don't know, how to compare results.My input data:uint32_t data[16] = { 0x1234, 0x456, 0x78, 0x09, 0x10, 0x100, 0x1000, 0x01, 0x54, 0x35, 0x98, 0x2432,...
Posted on January 10, 2018 at 14:51 Hi there, I wrote a serial protocol to exchange data between MCU and a PC. This protocol provides a checksum to verify data integrity. At the moment I use a simple sum of each byte but I think that the...
Posted on January 09, 2018 at 14:27HelloI would like to use the crypto lib with gcc (eclipse/ system workbench).The compiler returns this:error: xxx.elf uses VFP register arguments, libSTM32CryptographicV3.0.0_CM4_GCC_ot.a(crypto.o) does not.I'm not...
Posted on December 19, 2017 at 09:21Good morning,I'm working in my custom application based on STM32L4.Sometimes, a problem appears when trying to flash the device: If I try to flash it with Keil and Ulink2 interface, a message suddenly appears when...
Posted on January 31, 2016 at 10:19Hello, I am currently evaluating the EVALSTPM34 Smart Metering IC so that a decision can be made about including it in a smart home management system. Here is the STPM34 IC datasheet for reference: https://my.st.co...
Posted on December 06, 2017 at 21:27Hi there,i have a STM32L063 and i wanna encrypt a 32-byte packet by AES-CBC.I have tested it with using the 'HAL_CRYP_AESCBC_Encrypt' and 'HAL_CRYP_AESCBC_Decrypt' and it worked everytime the same encrypted packet...
Posted on May 11, 2017 at 17:47Recently PolarSSL library has been replaced by mbedtls in STCube Third Party libraries.PolarSSL used to have STM32 specific code for some of the Polar SSL APIs. Now, in the latest STCubembedtls library does not have ST...
Posted on November 24, 2017 at 15:08I have a simple project that toogle a LED. I try to add software protection to it.Basically, it does :main(){ Init_GPIO_for_LED(); LED_ON(); while(i++ < 10000000) {}; // yes, ugly LED_OFF(); while(1) {} //...
Posted on November 22, 2017 at 14:23Hello all,Our product is being programmed on test bench and after that it is locked setting the readout protection to level 2 (RDP level 2).My question is - is it normal for this process to take about 3 minutes?Ar...