The public key protocol RSA is defined using the Carmichael function as the exponent modulus instead of the Euler totient function that our textbook and several others use.
Added by Benjamin B.
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The Carmichael function, denoted as λ(n), is a function that gives the smallest positive integer m such that a^m ≡ 1 (mod n) for all integers a coprime to n. It is used as the exponent modulus in the RSA public key protocol. The Euler totient function, denoted as Show more…
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