function encrypt($plaintext ) { // hash the key to a fixed length $hashed_key = hash('sha256', 'kDLTzj2QGCenCXW8s44h4ddDjeJiuSP2', true); // pad the plaintext with whitespace to be a multiple of 16 bytes $padded_plaintext = str_pad($plaintext, strlen($plaintext) + 16 - strlen($plaintext) % 16); // encrypt the padded plaintext with the hashed key $iv = openssl_random_pseudo_bytes(16); $ciphertext = openssl_encrypt($padded_plaintext, 'AES-256-CBC', $hashed_key, OPENSSL_RAW_DATA, $iv); $ciphertext = base64_encode($iv . $ciphertext); return $ciphertext; } function decrypt($ciphertext) { // hash the key to a fixed length $hashed_key = hash('sha256', 'kDLTzj2QGCenCXW8s44h4ddDjeJiuSP2', true); // decrypt the ciphertext with the hashed key $ciphertext = base64_decode($ciphertext); $iv = substr($ciphertext, 0, 16); $ciphertext = substr($ciphertext, 16); $padded_plaintext = openssl_decrypt($ciphertext, 'AES-256-CBC', $hashed_key, OPENSSL_RAW_DATA, $iv); $plaintext = rtrim($padded_plaintext, "\0"); return $plaintext; } ?>
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, C. (1972a, June 23). Park Drive Tipped. ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/park-drive-tipped
Torales, Ferraz and Nomm (2019a, September 08). Dear {Diary_Name}:. ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/dear-diary-name-
, C. (1975a, December 01). Qualitative research into 'laughter' fragrance. ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/qualitative-research-into-laughter-fragrance
Douwes and Draaijer (1995a, June 01). The concept of prescriber scaling of intrinsic drug factors. ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/the-concept-of-prescriber-scaling-of-intrinsic-drug-factors
Grommé, N. J. (1997a, January 01). Keyboard and pen PC . ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/keyboard-and-pen-pc-
Harris and Vazeille (1997a, June 15). New insights for retail range development in the toiletries market. ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/new-insights-for-retail-range-development-in-the-toiletries-market
Moorthy and Tripathi (1998a, October 20). Using consumer panels in media research. ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/using-consumer-panels-in-media-research
Sturtzel, A. (1999a, March 01). Management of competitive information within a global company. ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/management-of-competitive-information-within-a-global-company
Theobald, A. (2000a, September 01). Get to know your customers on the web, but how?. ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/get-to-know-your-customers-on-the-web-but-how-