Differentiation between human-generated and ai-generated text

A system comprising:

• at least one key-press sensor and at least one processor collectively configured to perform a process comprising:
• generating a plurality of first cryptographic digital signatures associated with a set of typed characters, the set of typed characters having been input by use of a physical keyboard that is part of or in direct communication with a first processing device, wherein generating the plurality of first cryptographic digital signatures includes, for each of a plurality of keystrokes on the physical keyboard,
• detecting a motion associated with a pressing of a particular key on the physical keyboard, wherein the particular key is associated with a particular character, and
• generating a first cryptographic digital signature associated with the particular character in response to detecting the motion associated with the pressing of the particular key;
• and
• providing a typed character and an associated one of the first cryptographic digital signatures to a first verification entity located within the first processing device, for verification of a physical keystroke.

A keyboard comprising:

• a housing;
• a plurality of physical keys, each assigned to at least one character of a character set;
• a plurality of key-press sensors contained within the housing, each of the key-press sensors disposed to detect pressing of at least one of the plurality of physical keys and each disposed to provide a separate output signal of a plurality of output signals;
• and
• at least one hardware security module contained within the housing to receive the plurality of output signals, the at least one hardware security module being configured to generate a plurality of cryptographic digital signatures for, respectively, a plurality of physical keystrokes on the keyboard, by:
• for each of the plurality of physical keystrokes on the keyboard,
• detecting a motion associated with a pressing of a particular key on the keyboard, wherein the particular key is associated with a particular character;
• identifying which key of the plurality of physical keys is the particular key;
• generating a cryptographic digital signature associated with the particular character in response to detecting the motion associated with the pressing of the particular physical key;
• and
• providing the cryptographic digital signature to a verification entity located external to the keyboard, for verification of a physical keystroke.