Is storing emails in databases encrypted using encrypt() function in php secure ? If yes then how can i decrypt it if not then what's a better idea ? example : crypt() function
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Define "secure"; it depends where you store the key, etc.! Also, what is the encrypt() function? – Oliver Charlesworth Jan 01 '13 at 17:36
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it's the crypt() function – user1477731 Jan 01 '13 at 17:38
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1`crypt()` is not an encryption function, it's a hashing function. It cannot be reversed. Any of the real encryption functions will either have equivalent decryption functions (e.g. `mcrypt_encrypt`/`mcrypt_decrypt`), or will take a parameter to specify whether they should encrypt or decrypt. – Oliver Charlesworth Jan 01 '13 at 17:39
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so what do you suggest , a secure way for encrypting using encrypt functions in php ? – user1477731 Jan 01 '13 at 17:41
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The best you're going to get is with a Rijndael encryption. What you're doing is hashing which isn't reversible.
Check this out for AES encryption in PHP:
