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Use -ac_name for initial randomx key and ASSETCHAINS_MAGIC for randomx input

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Duke Leto
2022-07-02 01:03:05 -04:00
parent 15d254af10
commit 212f984459
2 changed files with 11 additions and 21 deletions
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30
src/miner.cpp
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@@ -1178,23 +1178,10 @@ void static RandomXMiner()
char randomxHash[RANDOMX_HASH_SIZE];
fprintf(stderr,"RandomXMiner: created randomxHash of size %d\n", RANDOMX_HASH_SIZE);
// Initial randomx key is chain magic || ac_name which is >= 2^40 bits of entropy assuming strlen(ac_name) >= 1
// For ac_name=DRAGONX we have 4 + 7 = 11 bytes or 2^88 bits of entropy
//int randomxKeySize = sizeof(randomxKey); // 4 + strlen(SMART_CHAIN_SYMBOL)];
char randomxKey[] = "RANDOMX";
//fprintf(stderr,"RandomXMiner: creating randomxKey of size %d\n", randomxKeySize);
/*
randomxKey[0] = ASSETCHAINS_MAGIC & 0xff;
randomxKey[1] = (ASSETCHAINS_MAGIC >> 8) & 0xff;
randomxKey[2] = (ASSETCHAINS_MAGIC >> 16) & 0xff;
randomxKey[3] = (ASSETCHAINS_MAGIC >> 24) & 0xff;
for(int i=0; i++; i<strlen(SMART_CHAIN_SYMBOL) ) {
randomxKey[4+i] = SMART_CHAIN_SYMBOL[i];
fprintf(stderr,"RandomXMiner: added %s to randomxKey\n", SMART_CHAIN_SYMBOL[i]);
}
fprintf(stderr,"RandomXMiner: created randomxKey=%s\n", randomxKey);
*/
// Initial randomx key is ac_name which is >= 2^40 bits of entropy assuming strlen(ac_name) >= 5
// For ac_name=DRAGONX we have 7 bytes or 2^56 bits of entropy
char randomxKey[65]; // randomx spec says keysize of >60 bytes is implementation-specific
strncpy(randomxKey, SMART_CHAIN_SYMBOL, 65);
crypto_generichash_blake2b_state state;
// Hash = blake2b( key || ac_name)
@@ -1203,8 +1190,11 @@ void static RandomXMiner()
//crypto_generichash_blake2b_update(&state, (unsigned char*)&SMART_CHAIN_SYMBOL[0], sizeof(SMART_CHAIN_SYMBOL));
//uchar randomxInput[32];
//crypto_generichash_blake2b_final(&state, randomxInput, 32);
unsigned char randomxInput[] = "RANDOMX";
fprintf(stderr,"RandomXMiner: created randomxInput\n");
//unsigned char randomxInput[] = "RANDOMX";
char randomxInput[80];
sprintf(randomxInput, "%08x", ASSETCHAINS_MAGIC);
fprintf(stderr,"RandomXMiner: created randomxInput=%s\n", randomxInput);
randomx_flags flags = randomx_get_flags();
randomx_cache *randomxCache = randomx_alloc_cache(flags);
@@ -1237,7 +1227,7 @@ void static RandomXMiner()
//crypto_generichash_blake2b_update(&new_state, (unsigned char *)&randomxBlockKey, 32);
//crypto_generichash_blake2b_final(&new_state, randomxInput, 32);
randomx_init_cache(randomxCache, &randomxBlockKey, sizeof randomxKey);
randomx_init_cache(randomxCache, &randomxBlockKey, sizeof randomxBlockKey);
fprintf(stderr,"RandomXMiner: initialized cache with randomxBlockKey=%s\n", randomxBlockKey.ToString().c_str());
}