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, July 08). Qualitative research on GII potential advertising approaches. ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/qualitative-research-on-gii-potential-advertising-approaches
, C. (1974a, February 13). Advertising research on 'Stowaway'. ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/advertising-research-on-stowaway-
, C. (1974a, December 16). Qualitative research on Belladonna . ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/qualitative-research-on-belladonna--10487
, C. (1971a, August 01). Exploratory research in Jamaica on the potential for Lucozade. ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/exploratory-research-in-jamaica-on-the-potential-for-lucozade
, C. (1973a, June 23). Project A.2.. ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/project-a-2-
, C. (1974a, April 11). Exploratory research into the attitudes and behaviour of women with regard to hair removal prepared for Sanitas Ltd.. ANA - ESOMAR. Retrieved March 31, 2023, from
, C. (1974a, April 12). Qualitative research into Kotex flushability advertising approaches . ANA - ESOMAR. Retrieved March 31, 2023, from
, C. (1974a, May 03). Qualitative research on washing grains. ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/qualitative-research-on-washing-grains
, C. (1975a, January 23). Binaca. ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/binaca