Modular exponentiation: Difference between revisions
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# Compute self**e mod m |
# Compute self**e mod m |
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def powmod(e, m) |
def powmod(e, m) |
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r, b = 1, self.to_big_i |
r, b = 1, self.to_big_i |
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while e > 0 |
while e > 0 |
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r = (b * r) % m if e.odd? |
r = (b * r) % m if e.odd? |
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