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Integers as a group.
- Associative operation: Integer wrapping addition,
$(a + b) \mod 2^N$. - Identity element: 0.
- Inverse element:
-x.
§Security
Such a group whose cardinality is not a prime number cannot provide the attribute that: if a and b are individually indistinguishable with random elements, a * b (integer multiplication) is still that.
If you need this attribute (e.g., for some verification), use crate::group::int_prime instead.