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. (1971a, June 18). Project Carnation. ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/project-carnation-name-research
, C. (1972a, July 21). Qualitative research on young people setting up home. ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/qualitative-research-on-young-people-setting-up-home
, C. (1972a, August 12). Further analysis of data collected from young people & children. ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/further-analysis-of-data-collected-from-young-people-children
, C. (1973a, September 01). Intensive psycho-economic research amongst 'young executives' (ID). ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/intensive-psycho-economic-research-amongst-young-executives-id-
, C. (1976a, June 01). Qualitative research on Project Jupiter. ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/qualitative-research-on-project-jupiter
, C. (1971a, September 01). Intensive investigation of young people who open bank accounts. ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/intensive-investigation-of-young-people-who-open-bank-accounts
B.V., E. (2013a, June 15). Interviewing children and young people (Spanish). ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/interviewing-children-and-young-people-spanish-
, C. (1973a, September 03). Quantifications of the psycho-economic typologies. ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/quantifications-of-the-psycho-economic-typologies
, C. (1971a, August 01). Identification of psycho-economic typologies. ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/identification-of-psycho-economic-typologies