Minimum Requirement
1. Option 1: (for zero-installation and disconnected tokens): The minimum requirement of any token is at least an inherent unique identity in a protected memory that cannot be tampered with and preferably is not openly accessible to applications other than those offered by the token vendor or other trusted organizations.
2. Option 2: (for out-of-band tokens): The minimum requirement of this form of token is connectivity from another medium, like mobile network for USSD, SMS and voice. All you need is a registered telephone / mobile number.
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Famous quotes containing the words minimum and/or requirement:
“There are ... two minimum conditions necessary and sufficient for the existence of a legal system. On the one hand those rules of behavior which are valid according to the system’s ultimate criteria of validity must be generally obeyed, and on the other hand, its rules of recognition specifying the criteria of legal validity and its rules of change and adjudication must be effectively accepted as common public standards of official behavior by its officials.”
—H.L.A. (Herbert Lionel Adolphus)
“The work of the political activist inevitably involves a certain tension between the requirement that positions be taken on current issues as they arise and the desire that one’s contributions will somehow survive the ravages of time.”
—Angela Davis (b. 1944)