Cipher Block Chaining
Please give me the flag in plain text and the whole process ortool that I use to solve this

There is a passphrase encrypted using AES, all we know is the following information: Encrypted message (hex): 5075657274612052696361207365206C6576616e746120656e20656c20435446 IV (hex): 48656c6c61204b697474792050555052 Key (hex): 212148617461205265792c2050522121 The flag must be in plain text (case sensitive)! Show transcribed image text
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