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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Stolte, J. (1972a, September 01). Survey on the problems of transferring a brand from one Western European country to another. ANA - ESOMAR. Retrieved March 31, 2023, from
, C. (1976a, December 01). Reports on qualitative research on 'coffee with' . ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/reports-on-qualitative-research-on-coffee-with-
, C. (1979a, February 01). Qualitative research into Kenco coffee bags advertising . ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/qualitative-research-into-kenco-coffee-bags-advertising-
, C. (1979a, May 01). Qualitative research into convenience desserts . ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/qualitative-research-into-convenience-desserts-
, C. (1979a, August 01). Qualitative research into milk drinks. ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/qualitative-research-into-milk-drinks
, C. (1979a, July 01). Qualitative research into choc ices. ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/qualitative-research-into-choc-ices
Arndt, J. (1970a, June 15). A beer tasting experiment. ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/a-beer-tasting-experiment
Ma, Lee and Rademacher (2007a, September 19). Local jewels and global heroes. ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/local-jewels-and-global-heroes
Depeux and Djurovic (2010a, November 18). Semiotics of taste . ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/semiotics-of-taste-