@misc{cryptoeprint:2001:052,
    author = {Alexis Warner Machado},
    title = {Differential Probability of Modular Addition with a Constant Operand},
    howpublished = {Cryptology ePrint Archive, Report 2001/052},
    year = {2001},
    url = {http://eprint.iacr.org/2001/052},
}