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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Desjonqueres and Jeanteur (1967a, August 01). Trends in buying habits in relation to the planned dispersion of shopping centres. ANA - ESOMAR. Retrieved March 31, 2023, from
Desjonqueres and Jeanteur (1967a, August 01). Trends in buying habits in relation to the planned dispersion of shopping centres (French). ANA - ESOMAR. Retrieved March 31, 2023, from
Rusby, P. A. (1962a, June 15). Research into housewife shopping patterns in Great Britain. ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/research-into-housewife-shopping-patterns-in-great-britain
Kaiser, B. P. (1986a, June 04). Assortment changes un food retail stores. ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/assortment-changes-un-food-retail-stores
, C. (1970a, December 01). Psychological group research into jams and preserves for C.W.S. Ltd. ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/psychological-group-research-into-jams-and-preserves-for-c-w-s-ltd
, C. (1970a, September 01). Survey of prefabricated garage owners for Stowe & Bowden. ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/survey-of-prefabricated-garage-owners-for-stowe-bowden
Sargood and Hunt (1972a, June 15). The use of market and brand trend data deriving from the R.B.l. motorists diary panel in the United Kingdom. ANA - ESOMAR. Retrieved March 31, 2023, from
Harris, J. (1986a, June 04). Identifying sales potential and reasons for non-achievement. ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/identifying-sales-potential-and-reasons-for-non-achievement
Goodhardt, G. J. (1966a, September 01). Consumer purchasing patterns in successive time-periods. ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/consumer-purchasing-patterns-in-successive-time-periods