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More pure scrypt benchmark.

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[UPDATED]   Use a more pure scrypt primitive to benchmark its performance, allowing comparison with tools such as hashcat.
This commit is contained in:
Maarten Billemont 2021-05-16 16:00:29 -04:00
parent a2d68d7620
commit 15c45ebcac
1 changed files with 15 additions and 9 deletions
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24
src/spectre-bench.c
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@ -78,7 +78,7 @@ int main(int argc, char *const argv[]) {
// Start HMAC-SHA-256
// Similar to phase-two of spectre
uint8_t *sitePasswordInfo = malloc( 128 );
iterations = 4200000; /* tuned to ~10s on dev machine */
iterations = 4300000/* ~10s on dev machine */ * 2;
const SpectreUserKey *userKey = spectre_user_key( userName, userSecret, SpectreAlgorithmCurrent );
if (!userKey) {
ftl( "Could not allocate user key: %s", strerror( errno ) );
@ -98,7 +98,7 @@ int main(int argc, char *const argv[]) {
// Start BCrypt
// Similar to phase-one of spectre
uint8_t bcrypt_rounds = 10;
iterations = 170; /* tuned to ~10s on dev machine */
iterations = 170/* ~10s on dev machine */ * 2;
spectre_time( &startTime );
for (int i = 1; i <= iterations; ++i) {
bcrypt( userSecret, bcrypt_gensalt( bcrypt_rounds ) );
@ -110,15 +110,18 @@ int main(int argc, char *const argv[]) {
// Start SCrypt
// Phase one of spectre
iterations = 50; /* tuned to ~10s on dev machine */
uint8_t scrypt_rounds = 15;
iterations = 2/* ~10s on dev machine */ * 2;
spectre_time( &startTime );
uint8_t *key = malloc(64);
for (int i = 1; i <= iterations; ++i) {
free( (void *)spectre_user_key( userName, userSecret, SpectreAlgorithmCurrent ) );
spectre_kdf_scrypt( key, 64, (uint8_t *)userName, strlen( userName ), (uint8_t *)userSecret, strlen( userSecret ), pow( 2, scrypt_rounds ), 8, 2 );
if (modff( 100.f * i / iterations, &percent ) == 0)
fprintf( stderr, "\rscrypt_spectre: iteration %d / %d (%.0f%%)..", i, iterations, percent );
fprintf( stderr, "\rscrypt-%d: iteration %d / %d (%.0f%%)..", scrypt_rounds, i, iterations, percent );
}
const double scryptSpeed = spectre_show_speed( startTime, iterations, "scrypt_spectre" );
free( key );
const double scryptSpeed = spectre_show_speed( startTime, iterations, "scrypt" );
// Start SPECTRE
// Both phases of spectre
@ -142,9 +145,12 @@ int main(int argc, char *const argv[]) {
// Summarize.
fprintf( stdout, "\n== SUMMARY ==\nOn this machine,\n" );
fprintf( stdout, " - spectre is %f times slower than hmac-sha-256.\n", hmacSha256Speed / spectreSpeed );
fprintf( stdout, " - spectre is %f times slower than bcrypt-%d.\n", bcryptSpeed / spectreSpeed, bcrypt_rounds );
fprintf( stdout, " - scrypt is %f times slower than bcrypt-%d.\n", bcryptSpeed / scryptSpeed, bcrypt_rounds );
fprintf( stdout, " - 1 spectre = %13.6f x hmac-sha-256.\n", hmacSha256Speed / spectreSpeed );
fprintf( stdout, " - 1 spectre = %13.6f x bcrypt-%d.\n", bcryptSpeed / spectreSpeed, bcrypt_rounds );
fprintf( stdout, " - 1 spectre = %13.6f x scrypt-%d.\n", scryptSpeed / spectreSpeed, scrypt_rounds );
fprintf( stdout, " - 1 bcrypt-%-4d = %13.6f x hmac-sha-256.\n", bcrypt_rounds, hmacSha256Speed / bcryptSpeed );
fprintf( stdout, " - 1 bcrypt-%-4d = %13.6f x scrypt-%d.\n", bcrypt_rounds, scryptSpeed / bcryptSpeed, scrypt_rounds );
fprintf( stdout, " - 1 scrypt-%-4d = %13.6f x hmac-sha-256.\n", scrypt_rounds, hmacSha256Speed / scryptSpeed );
return 0;
}