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I have an encrypted string from one of our customers.
This string was encrypted using the AES method in Java.
The only thing I have is the key: "xxxxxxxxxxxxxxxxxxxxxxxx" (24 chars) and the encrypted text: "56e84e9f6344826bcfa439cda09e5e96" (32 chars). (This really is the only data I have)
I can't seem to find a method to decrypt this string.
Could anyone provide me with a working example.
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AES includes three block ciphers: AES-128 uses a 128-bit key length to encrypt and decrypt a block of messages. AES-192 uses a 192-bit key length to encrypt and decrypt a block of messages. AES-256 uses a 256-bit key length to encrypt and decrypt a block of messages.
Given encrypted string str, the task is to decrypt the given string when the encryption rules are as follows: Start with the first character of the original string. In every odd step, append the next character to it. In every even step, prepend the next character to the encrypted string so far.
Here are two complete code samples for you:
You might also find c# implementations of AES encryption here on SO interesting.
I found another example Simple encrypting and decrypting data in C# where they use only the Pass Phrase to decrypt.
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