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. (1973a, January 22). Nescafé packaging research in Ireland for Nestle's Ltd.. ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/nescaf-packaging-research-in-ireland-for-nestle-s-ltd-
, C. (1973a, February 01). Qualitative research on a new TV campaign for standard Nescafe. ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/qualitative-research-on-a-new-tv-campaign-for-standard-nescafe
, C. (1972a, August 03). Qualitative research on instant coffee. ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/qualitative-research-on-instant-coffee
, C. (1975a, February 01). Nescafé fine blend. ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/nescaf-fine-blend
, C. (1972a, May 03). Qualitative research on the development of Nescafe advertising . ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/qualitative-research-on-the-development-of-nescafe-advertising-
, C. (1972a, July 01). Instant coffee placement test . ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/instant-coffee-placement-test-
, C. (1974a, December 02). Nescore. ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/nescore
, C. (1976a, December 01). Coffee Compliment packaging research. ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/coffee-compliment-packaging-research