Encrypt, Php - rextester

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<?php 
 
// Encrypt string

$simple_string = "Neptune is the eighth planet from the Sun and last of the known planets. While it is the third largest planet with respect to mass, it is only the fourth largest in terms of diameter. Due to its blue coloration, Neptune was named after the Roman god of the Sea.   \n";

echo "Original String: " . $simple_string;

$ciphering = "AES-128-CTR";

$iv_length = openssl_cipher_iv_length($ciphering);

$options = 0;

$encryption_iv = '1234567891011121';

// Store the encryption key

$encryption_key = "Planets";

// Use openssl_encrypt() function to encrypt the data

$encryption = openssl_encrypt($simple_string, $ciphering,

$encryption_key, $options, $encryption_iv);

// Display the encrypted string

echo "Encrypted String: " . $encryption . "\n";

$decryption_iv = '1234567891011121';

// Store the decryption key

$decryption_key = "Planets";

// Use openssl_decrypt() function to decrypt the data

$decryption=openssl_decrypt ($encryption, $ciphering,

$decryption_key, $options, $decryption_iv);

// Display the decrypted string

echo "Decrypted String: " . $decryption;

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Absolute running time: 0.16 sec, cpu time: 0.04 sec, memory peak: 25 Mb, absolute service time: 0,24 sec