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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Tuvee and Bigant (1973a, June 01). Acceptance of a new product relies upon communication. As an example: Introducing of disposables in French hospitals. ANA - ESOMAR. Retrieved March 31, 2023, from
Hall, Banerji, Rayner, D'Angelo and Atkins (2019a, September 08). Rapid impact. ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/rapid-impact
Seitz, R. M. (1979a, March 01). State of new product market research around the world. ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/state-of-new-product-market-research-around-the-world
Baker, M. J. (1972a, June 15). Identifying the early adopter of new industrial products. ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/identifying-the-early-adopter-of-new-industrial-products
Loobuyck, Scheir and Depoortere (2018a, September 23). Barry Callebaut strikes gold with the chocolate of the future. ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/barry-callebaut-strikes-gold-with-the-chocolate-of-the-future-9347
Sanchez and Faivre (1975a, June 01). The validation of marketing models. ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/the-validation-of-marketing-models
Tomlin, E. R. (1974a, September 01). New product research . ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/new-product-research-
Bright and Stammers (1975a, March 01). Tracking and predicting new product penetration. ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/tracking-and-predicting-new-product-penetration
Stammers, H. R. (1977a, March 01). Use of the shape technique for forecasting pharmaceutical markets. ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/use-of-the-shape-technique-for-forecasting-pharmaceutical-markets