PHP aes (ecb) garbled characters After decryption

PHP aes (ecb) garbled characters After decryption

This article describes how to solve the garbled problem after decryption by PHP aes (ecb). It is very simple and practical. If you need it, you can refer to it.

Content: abcd

KEY: 1234567890123456.

Encrypted base64: T7UT2NQ1AFvR9unjA0wKWA =

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Function apiDataDecrypt ($ data, $ key = ''){ $ Data = base64_decode ($ data ); $ Pad = 16-(strlen ($ data) % 16 ); $ PadData = $ data. str_repeat (chr ($ pad), $ pad ); Return mcrypt_decrypt (MCRYPT_RIJNDAEL_128, $ key, $ padData, MCRYPT_MODE_ECB ); } }

Directly attach the solution

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$ Key = '000000 '; $ Content = 't7ut2nq1afvr9unja0wkwa = '; $ DesStr = decryptString ($ content, $ key ); Echo ($ desStr );   Function decryptString ($ str, $ key ){ $ Str = base64_decode ($ str ); $ Str = mcrypt_decrypt (MCRYPT_RIJNDAEL_128, $ key, $ str, MCRYPT_MODE_ECB ); $ Block = mcrypt_get_block_size ('rijndael _ 000000', 'ecb '); $ Pad = ord ($ str [($ len = strlen ($ str)-1]); $ Len = strlen ($ str ); $ Pad = ord ($ str [$ len-1]); Return substr ($ str, 0, strlen ($ str)-$ pad ); }

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