* string $key The key used for the decryption (must be the same as for encryption) * string $source Path to file that should be decrypted * Dencrypt the passed file and saves the result in a new file, removing the To decrypt files that have been encrypted with the above function you can use this function. Use the first 16 bytes of the ciphertext as the next initialization vector $ciphertext = openssl_encrypt($plaintext, 'AES-128-CBC', $key, OPENSSL_RAW_DATA, $iv) $plaintext = fread($fpIn, 16 * FILE_ENCRYPTION_BLOCKS) Put the initialzation vector to the beginning of the file * string|false Returns the file name that has been created or FALSE if an error occuredįunction encryptFile($source, $key, $dest) * string $dest File name where the encryped file should be written to. * string $key The key used for the encryption * string $source Path to file that should be encrypted * Encrypt the passed file and saves the result in a new file with ".enc" as suffix. * to read/write shorter or longer chunks.
* So if we read 10,000 blocks we load 160kb into memory. * For 'AES-128-CBC' each block consist of 16 bytes.
* Define the number of blocks that should be read from the source file for each chunk. This example uses the symmetric AES-128-CBC algorithm to encrypt smaller chunks of a large file and writes them into another file. So we have to write a userland function doing that. openssl_encrypt can be used to encrypt strings, but loading a huge file into memory is a bad idea. PHP lacks a build-in function to encrypt and decrypt large files. Type juggling and Non-Strict Comparison Issues.php mysqli affected rows returns 0 when it should return a positive integer.
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