hashing is not the same as encryption. you can only compare the hashes of two strings and make an assumption that the originals must be the same. you can't recover (decrypt) the original string from a hash string, whatever algorithm you use.
the PHP "crypt" function doesn't encrypt, you are looking at the wrong PHP function. http://php.net/manual/en/function.openssl-private-encrypt.php > 2016/11/26 22:20、Sujit Shah <[email protected]> のメール： > I am looking for a way to store a value in MySQL encrypted using PHP > I then want to decrypt this in 4D > Will GENERATE ENCRYPTION KEYPAIR work? > The crypt() function returns a hashed string using DES, Blowfish, or MD5 > algorithms. 宮古 啓介 セールス・エンジニア 株式会社フォーディー・ジャパン 〒150-0043 東京都渋谷区道玄坂1-10-2 渋谷THビル6F Tel: 03-6427-8441 Fax: 03-6427-8449 [email protected] www.4D.com/JP ********************************************************************** 4D Internet Users Group (4D iNUG) FAQ: http://lists.4d.com/faqnug.html Archive: http://lists.4d.com/archives.html Options: http://lists.4d.com/mailman/options/4d_tech Unsub: mailto:[email protected] **********************************************************************
