57 lines
1.7 KiB
PHP
57 lines
1.7 KiB
PHP
<?php
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require("./lib.php");
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/**
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* This is a simple example of how to encrypt files with the library
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* The following code will read the file in chunks instead of loading
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* the whole thing in memory, trying to keep the "Peak Memory Usage"
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* as low as possible.
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*/
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define("INPUT_FILE", "./lib.php");
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define("OUTPUT_FILE", "./testdir/" . "./example.enc.php");
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define("DEC_OUTPUT_FILE", "./testdir/" . "./example.dec.php");
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// Make sure the testing folder exists
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if ( !file_exists("./testdir") ) {
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mkdir("./testdir", 0777, true);
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}
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// Initialize the class
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$lib = new kpcrypt();
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// $lib->setEncryptionBlocks(128); // This will take ~10 times more time, but will use half as much memory.
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// Really the best value is the default one.
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$enc_start = round(microtime(true) * 1000);
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// Encrypt the file
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$lib->encryptFile(INPUT_FILE, OUTPUT_FILE);
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$enc_end = round(microtime(true) * 1000) - $enc_start;
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$dec_start = round(microtime(true) * 1000);
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// Decrypt the file as well
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$lib->decryptFile(OUTPUT_FILE, DEC_OUTPUT_FILE);
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$dec_end = round(microtime(true) * 1000) - $dec_start;
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/**
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* NOTE: You can also compress the output using gzip
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*/
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echo "\n\n";
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echo "Input File Size: " . round(filesize(INPUT_FILE) / 1024 / 1024, 2) . "Mb";
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echo "\n";
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echo "Output File Size: " . round(filesize(OUTPUT_FILE) / 1024 / 1024, 2) . "Mb";
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echo "\n";
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echo "Peak Memory: " . memory_get_peak_usage() / 1024 / 1024 . "Mb"; // Check the memory in Mb
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echo "\n";
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echo "Encryption Time: $enc_end ms\n"; // 9700k = ~210ms ( 4Mb = 100ms )
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echo "Decryption Time: $dec_end ms\n";
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echo "\n";
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$errors = $lib->getErrors();
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echo "Errors: " . ( !empty($errors) ? "\n" . json_encode($errors, JSON_PRETTY_PRINT) : "No Errors!");
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