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 Authors containing Werner Wyss.
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Wyss, W. (1975a, August 01). The evolution of the market researcher. ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/the-evolution-of-the-market-researcher
Wyss, W. (1975a, August 01). The evolution of the market researcher (German). ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/the-evolution-of-the-market-researcher-german-
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-
Wyss, W. (1980a, June 18). Diminishing political participation . ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/diminishing-political-participation-
Wyss, W. (1972a, June 15). Market researchers in Europe. ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/market-researchers-in-europe
Wyss, W. (1994a, September 01). Positioning one thousand brands in their respective markets. ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/positioning-one-thousand-brands-in-their-respective-markets
Wyss, W. (1967a, June 15). Summary. ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/summary
Wyss, W. (1969a, November 01). Conclusion. ANA - ESOMAR. Retrieved March 31, 2023, from
https://ana.esomar.org/documents/conclusion-682