CHANGES: mention blinding reverting in ECDSA. [skip ci]
Changes between 1.1.0h and 1.1.1 [xx XXX xxxx]
+ *) Revert blinding in ECDSA sign and instead make problematic addition
+ length-invariant. Switch even to fixed-length Montgomery multiplication.
+ [Andy Polyakov]
+
*) Use the new ec_scalar_mul_ladder scaffold to implement a specialized ladder
step for binary curves. The new implementation is based on formulas from
differential addition-and-doubling in mixed Lopez-Dahab projective
