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; } ?>
The results has been filter on Catalogues containing ESOMAR/WAPOR Conference 1963.
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Wyss, W. (1963a, June 15). A new pretest for advertisements . ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/a-new-pretest-for-advertisements-
Britt, S. H. (1963a, June 15). Measuring advertising effectiveness. ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/measuring-advertising-effectiveness-212
Abadan, N. (1963a, June 15). Opinion formation and value judgements of Turkish University students. ANA - ESOMAR. Retrieved March 31, 2023, from
Goguel, C. (1963a, June 15). The psychological index of the costs of living. ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/the-psychological-index-of-the-costs-of-living
Hardy, H. S. (1963a, June 15). The illusion of the "image" and the excess power of groups (French). ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/the-illusion-of-the-image-and-the-excess-power-of-groups-french-
Arachtingi, J. (1963a, June 15). Remarks suggested by the papers on advertising research. ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/remarks-suggested-by-the-papers-on-advertising-research
Klanfer, J. (1963a, June 15). Interviewing physicians. ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/interviewing-physicians
Hardy, H. S. (1963a, June 15). The illusion of the "image" and the excess power of groups. ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/the-illusion-of-the-image-and-the-excess-power-of-groups
Ebersold, W. (1963a, June 15). Continuing advertising research in Switzerland. ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/continuing-advertising-research-in-switzerland