digital fingerprint
1. A characteristic of a data item, such as a cryptographic checkvalue or the result of performing a one-way hash function on the data, that is sufficiently peculiar to the data item that it is computationally infeasible to find another data item that will possess the same characteristics [10181-1].
2. A characteristic of a data item, such as a cryptographic check- value or a result of performing a one-way hash function on the data, that is sufficiently peculiar to the data item that it is computationally infeasible to find another data item that will possess the same characteristic [10181-2].