monero-project/monero
monero-project/monero
1
0
Fork 0
mirror of https://github.com/monero-project/monero.git synced 2024-11-17 00:07:38 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

Specify "524,288" iterations instead of "500,000"

Browse source 
CryptoNight does exactly 524,288 iterations over the scratchpad as defined in CNS008, saying 500,000 could be confusing. I know its meant to give a rough idea (around 500k) to the reader but if you are reading the code, might as well know the exact number.
This commit is contained in:
darentuzi 2017-03-14 16:39:44 +02:00 committed by GitHub
parent c6102d5c1b
commit 585c917691
1 changed files with 5 additions and 5 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

10
src/crypto/slow-hash.c
View file

@ -494,7 +494,7 @@ void slow_hash_free_state(void)
* buffer of pseudorandom data by hashing the supplied data. It then uses this
* random data to fill a large 2MB buffer with pseudorandom data by iteratively
* encrypting it using 10 rounds of AES per entry. After this initialization,
* it executes 500,000 rounds of mixing through the random 2MB buffer using
* it executes 524,288 rounds of mixing through the random 2MB buffer using
* AES (typically provided in hardware on modern CPUs) and a 64 bit multiply.
* Finally, it re-mixes this large buffer back into
* the 200 byte "text" buffer, and then hashes this buffer using one of four
@ -578,8 +578,8 @@ void cn_slow_hash(const void *data, size_t length, char *hash)
U64(b)[0] = U64(&state.k[16])[0] ^ U64(&state.k[48])[0];
U64(b)[1] = U64(&state.k[16])[1] ^ U64(&state.k[48])[1];
/* CryptoNight Step 3: Bounce randomly 1 million times through the mixing buffer,
* using 500,000 iterations of the following mixing function. Each execution
/* CryptoNight Step 3: Bounce randomly 1,048,576 times (1<<20) through the mixing buffer,
* using 524,288 iterations of the following mixing function. Each execution
* performs two reads and writes from the mixing buffer.
*/
@ -895,8 +895,8 @@ void cn_slow_hash(const void *data, size_t length, char *hash)
U64(b)[0] = U64(&state.k[16])[0] ^ U64(&state.k[48])[0];
U64(b)[1] = U64(&state.k[16])[1] ^ U64(&state.k[48])[1];
/* CryptoNight Step 3: Bounce randomly 1 million times through the mixing buffer,
* using 500,000 iterations of the following mixing function. Each execution
/* CryptoNight Step 3: Bounce randomly 1,048,576 times (1<<20) through the mixing buffer,
* using 524,288 iterations of the following mixing function. Each execution
* performs two reads and writes from the mixing buffer.
*/