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  ______   __   __   _    _      ___     _    _   
 /_   _//  \ \\/ // | |  | ||   / _ \\  | || | || 
 `-| |,-    \ ` //  | |/\| ||  | / \ || | || | || 
   | ||      | ||   |  /\  ||  | \_/ || | \\_/ || 
   |_||      |_||   |_// \_||   \___//   \____//  
   `-`'      `-`'   `-`   `-`   `---`     `---`

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Text this: Generic Internal State Recovery on Strengthened HMAC: n-bit Secure HMAC Requires Key in All Blocks