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. (1977a, July 01). Qualitative research amongst UK veterinary surgeons . ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/qualitative-research-amongst-uk-veterinary-surgeons-
Pall and Arora (2020a, November 02). Anecdotal evidence for CX/UX. ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/anecdotal-evidence-for-cx-ux
, C. (1979a, March 01). Qualitative research into growth promotants. ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/qualitative-research-into-growth-promotants
Fernandes and Acquarone (2021a, July 30). Daring to trust, sharing tabu experiences . ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/daring-to-trust-sharing-tabu-experiences--11767
El-Tigi and Wafai (1996a, March 01). Egyptian consumers . ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/egyptian-consumers-
Lara and Rojas (2001a, May 01). The contribution of qualitative research to the presidential campaign of Vicente Fox (Spanish). ANA - ESOMAR. Retrieved March 31, 2023, from
Gabriel, C. (2002a, November 10). Driving Africa - Women. Now!. ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/driving-africa---women-now-
Morrison, D. E. (2003a, November 05). Focus group research: A misunderstood history. ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/focus-group-research-a-misunderstood-history
Toiati, L. (2005a, November 13). Alice through the looking glass. ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/alice-through-the-looking-glass