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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 619 | daniel-mar | 1 | #!/usr/bin/env php |
| 2 | <?php |
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| 3 | |||
| 1130 | daniel-mar | 4 | /* |
| 5 | * OIDplus 2.0 |
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| 6 | * Copyright 2019 - 2021 Daniel Marschall, ViaThinkSoft |
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| 7 | * |
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| 8 | * Licensed under the Apache License, Version 2.0 (the "License"); |
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| 9 | * you may not use this file except in compliance with the License. |
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| 10 | * You may obtain a copy of the License at |
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| 11 | * |
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| 12 | * http://www.apache.org/licenses/LICENSE-2.0 |
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| 13 | * |
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| 14 | * Unless required by applicable law or agreed to in writing, software |
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| 15 | * distributed under the License is distributed on an "AS IS" BASIS, |
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| 16 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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| 17 | * See the License for the specific language governing permissions and |
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| 18 | * limitations under the License. |
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| 19 | */ |
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| 20 | |||
| 21 | /** |
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| 22 | * @param int $treshold_secs |
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| 23 | * @param bool $verbose |
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| 24 | * @return int |
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| 25 | */ |
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| 26 | function bcrypt_rounds(int $treshold_secs, bool $verbose=true): int { |
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| 619 | daniel-mar | 27 | if ($verbose) echo "Searching BCrypt cost (rounds) for <$treshold_secs secs...\n"; |
| 28 | $found = 31; |
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| 29 | for ($rounds=4; $rounds<=31; $rounds++) { // 4..31 is the valid range of PHP Bcrypt |
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| 30 | $x = time(); |
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| 31 | $start = microtime(true); |
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| 32 | password_hash("TEST", PASSWORD_BCRYPT, array("cost" => $rounds)); |
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| 33 | $time_elapsed_secs = microtime(true) - $start; |
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| 34 | if ($verbose) echo "Cost = $rounds Rounds => ".round($time_elapsed_secs,5)." sec\n"; |
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| 35 | if ($time_elapsed_secs == $treshold_secs) { $found = $rounds; break; } |
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| 36 | if ($time_elapsed_secs > $treshold_secs) { $found = $rounds-1; break; } |
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| 37 | } |
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| 38 | if ($verbose) echo "RESULT: Cost = $found\n"; |
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| 39 | return $found; |
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| 40 | } |
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| 41 | |||
| 42 | if ($argc > 1) { |
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| 43 | if (($argv[1] = '-h') || ($argv[1] = '--help')) { |
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| 44 | echo "$argv[0] <seconds>\n"; |
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| 45 | } else { |
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| 46 | bcrypt_rounds($argv[1], true); |
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| 47 | } |
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| 48 | } else { |
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| 49 | bcrypt_rounds(1.00, true); |
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| 1130 | daniel-mar | 50 | } |