Exception (3) problem with Wemos D1 - methods: update/finalize about arduinolibs HOT 5 CLOSED

Hey again,

I'll try to know what is it problem, and I got:
Problem is with function: processChunk();

Right there:
for (index = 0; index < 8; ++index) { state.h[index] ^= (v[index] ^ v[index + 8]);

When I assign (or xor) variable into state.h[index]; it crashed.
But when I assign e.g. into state.h[index] = 0xFFFFFFFF; it will works.
When I do: uint32_t new_index = (v[index] ^ v[index + 8]); it works, but next if I'd like to assign (or xor) into new_index = (v[index] ^ v[index + 8]); it fail again :/

Thank you for any help.

Best Regards
Ján

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I borrowed a WeMos D1 Mini from my brother. The BLAKE2s test case and others work for me with the following configuration:

• Arduino IDE 1.8.2
• 2.4.1 version of the ESP8266 board support code from https://github.com/esp8266/Arduino
• Tools -> Board configured as "WeMos D1 R2 & mini".

Maybe whatever compiler issue was occurring before has been fixed now? Or it is even more subtle.

I have noticed some issues with other test programs like TestAES which run the tests for a longer amount of time. If the code spends more than 5 seconds in the setup() or loop() function without returning to the caller, then a Soft WDT Reset exception will occur. This can be avoided by calling wdt_disable() at the start of the setup() function. In production code it may be necessary to call wdt_reset() periodically to feed the watchdog if the program spends a lot of time in setup() or loop().

I'm still working through the other Crypto examples to make sure they all work in an ESP8266 configuration with the latest toolchain. And there may be need to be some other changes for EEPROM access and chip ID's in the RNG class.

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I have made some modifications to the library and all crypto examples now work with my brother's ESP8266 WeMos D1 Mini and ESP32 Dev Module. For the ESP8266 it was mostly watchdog issues, with a few other things here and there. I have collected up some recommendations for people who are using ESP8266 here:

http://rweather.github.io/arduinolibs/crypto_esp.html

I also modified the RNG class to use the hardware TRNG's on both ESP8266 and ESP32.

Hopefully this will put the ESP-related issues to rest now.

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Hello Rwather, I just wanna inform you, that I instal the newest version of IDE + updated library + ESP8266 core as you mentioned, and all work very well. Thank you again for you're response and have a nice day :) Bye

PS: If I'll find some problem thing in library, I will inform you, to improve user experiance in your lib.

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Fantastic - I'm glad it is working for you now. I look forward to any comments as to how to improve the library.

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