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Merge pull request #79 from golden-guy/dev

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Replace mbedtls with wolfSSL for hashing nonces
Tested and confirmed improvements. I'll let it working for at least 24h before including it.

Thanks, your PR made me think about performance of current SHA. 
I could see is using HW accelerator but I couldn't manage to use SW SHA from embed without having crashes
This commit is contained in:
BitMaker 2023-06-27 13:15:28 +02:00 committed by GitHub
commit f71f4e5384
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2 changed files with 13 additions and 15 deletions
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1
platformio.ini
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@ -41,3 +41,4 @@ lib_deps =
https://github.com/tzapu/WiFiManager.git
mathertel/OneButton @ ^2.0.3
arduino-libraries/NTPClient
https://github.com/golden-guy/Arduino_wolfssl.git#v5.5.4

27
src/mining.cpp
View File

@ -3,10 +3,9 @@
#include <WiFi.h>
#include <algorithm>
#include <TFT_eSPI.h> // Graphics and font library for ILI9341 driver chip
#include <wolfssl/wolfcrypt/sha256.h>
#include "media/Free_Fonts.h"
#include "media/images.h"
#include "mbedtls/md.h"
#include "mbedtls/sha256.h"
#include "OpenFontRender.h"
#include "stratum.h"
#include "mining.h"
@ -225,14 +224,13 @@ void runMiner(void * name){
mMiner.inRun = true; //Set inRun flag
//Prepare Premining data
mbedtls_sha256_context midstate[32];
Sha256 midstate[32];
unsigned char hash[32];
mbedtls_sha256_context ctx;
Sha256 sha256;
//Calcular midstate
mbedtls_sha256_init(midstate);
mbedtls_sha256_starts_ret(midstate, 0);
mbedtls_sha256_update_ret(midstate, mMiner.bytearray_blockheader, 64);
wc_InitSha256(midstate);
wc_Sha256Update(midstate, mMiner.bytearray_blockheader, 64);
// search a valid nonce
unsigned long nonce = TARGET_NONCE - MAX_NONCE;
@ -244,14 +242,13 @@ void runMiner(void * name){
//Con midstate
// Primer SHA-256
mbedtls_sha256_clone(&ctx, midstate); //Clonamos el contexto anterior para continuar el SHA desde allí
mbedtls_sha256_update_ret(&ctx, header64, 16);
mbedtls_sha256_finish_ret(&ctx, hash);
wc_Sha256Copy(midstate, &sha256);
wc_Sha256Update(&sha256, header64, 16);
wc_Sha256Final(&sha256, hash);
// Segundo SHA-256
mbedtls_sha256_starts_ret(&ctx, 0);
mbedtls_sha256_update_ret(&ctx, hash, 32);
mbedtls_sha256_finish_ret(&ctx, hash);
wc_Sha256Update(&sha256, hash, 32);
wc_Sha256Final(&sha256, hash);
/*for (size_t i = 0; i < 32; i++)
Serial.printf("%02x", hash[i]);
Serial.println(""); */
@ -300,8 +297,8 @@ void runMiner(void * name){
}
} // exit if found a valid result or nonce > MAX_NONCE
mbedtls_sha256_free(&ctx);
mbedtls_sha256_free(midstate);
wc_Sha256Free(&sha256);
wc_Sha256Free(midstate);
mMiner.inRun = false;
Serial.print(">>> Finished job waiting new data from pool");