How to Use the AES Decryption Tool
Step 1 : Paste or type the encrypted text you want to decrypt in the input box. At top right of the input box, you can see the size of the text you have entered.
Step 2 : Provide the decryption key in the input box. It should the same key that was used to encrypt the text.
Step 3 : Select the key size in bits. You can select 128, 192, or 256 bits.
Step 4 : Select input format. If you are not sure, you can select Auto Detect.
Step 4 :Select mode of AES descryption. Make sure you select the same mode that was used to encrypt the text.
Step 5 :Base on AES descryption mode you have selected, you will see extra options such as Inital Vector, Counter, Segment Size etc. Make sure you provide the same values that were used to encrypt the text.
Step 6 :Click on the Encrypt button to descrypt the text. You will see the encrypted text in the output box. If paramters are not upto the mark, you will see the error message below of the output box.