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Merge #634: Add a descriptive comment for secp256k1_ecmult_const. 

ee9e68c Add a descriptive comment for secp256k1_ecmult_const. (Gregory Maxwell)

Pull request description:

  Helps issue #633

ACKs for commit ee9e68:

Tree-SHA512: 552bebbd99bf8e8225ef6028e6a3bd188d412977d9c6caa90515041622accd2ea43e320217bf097180343921e967f4627a76c73e4529097bca50be414503e63b
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Gregory Maxwell 2019-06-04 23:05:07 +00:00
parent d0d738d32d ee9e68cd30
commit fa33017135
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1 changed files with 5 additions and 2 deletions
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src/ecmult_const.h
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@ -10,8 +10,11 @@
#include "scalar.h"
#include "group.h"
/* Here `bits` should be set to the maximum bitlength of the _absolute value_ of `q`, plus
* one because we internally sometimes add 2 to the number during the WNAF conversion. */
/**
* Multiply: R = q*A (in constant-time)
* Here `bits` should be set to the maximum bitlength of the _absolute value_ of `q`, plus
* one because we internally sometimes add 2 to the number during the WNAF conversion.
*/
static void secp256k1_ecmult_const(secp256k1_gej *r, const secp256k1_ge *a, const secp256k1_scalar *q, int bits);
#endif /* SECP256K1_ECMULT_CONST_H */