Created
November 14, 2017 15:04
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mod inverse for RSA
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| def ext_Euclid(n,m): | |
| if (m == 0): | |
| return 1, 0 | |
| else: | |
| x, y = ext_Euclid(m, n%m) | |
| x, y = y, (x -(n//m)*y) | |
| return x, y | |
| def mod_inverse(e,n): | |
| x,y=ext_Euclid(e,n) | |
| return (x+n)%n |
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