Why does ECDSA transmit s and not s^-1?
667
Why use $(r,s)$ instead of $(r,s^{-1})$ as DSA signature?
3712
Why $\sqrt{-1 \cdot {-1}} \neq \sqrt{-1}^2$?
70723
Why are nonsquare matrices not invertible?
121767
Why $\det(A^{-1}) = 1/\det(A)$?
67588
Why does $|e^{ix}|^2 = 1$?
155647
How is the x coordinate of a "point at infinity" encoded in a Secp256k1 signature?
109900
Why is $e^{\pi \sqrt{163}}$ almost an integer?
56745
Why does this not work with an imaginary exponent?
142526
What's the intuition behind difference of $\neg(S\land E)$ and $\neg S \land \neg E$?
38348
Is ECC over real numbers possible?
67635
Why does $\epsilon_0=1$ in CGS units?
155740
Newton's Law of Graviation: Why $G$ and not e.g. $\dfrac{1}{4\pi G_0}$?
109864
What does it mean to have a lone plus sign in the exponent/superscript (Modified Weiszfeld algorithm)
8869
(EC)DSA signature without hashing, or with offloaded hash?
19133
Why/How is this Wick's theorem?
26462
What's the fundamental difference between Diffie-Hellman and RSA?
50473
How does the "biased-$k$ attack" on (EC)DSA work?