Peter Dettman cc604e9842 Avoid division when decomposing scalars ...

- In secp256k1_gej_split_exp, there are two divisions used. Since the denominator is a constant known at compile-time, each can be replaced by a multiplication followed by a right-shift (and rounding).
- Add the constants g1, g2 for this purpose and rewrite secp256k1_scalar_split_lambda_var accordingly.
- Remove secp256k1_num_div since no longer used

Rebased-by: Pieter Wuille

2014-12-02 16:50:00 +01:00

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java

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bench_inv.c

Switch to C89 comments in prep for making the whole codebase C89 compatible.

2014-11-15 07:33:07 -08:00

bench_sign.c

Switch to C89 comments in prep for making the whole codebase C89 compatible.

2014-11-15 07:33:07 -08:00

bench_verify.c

Switch to C89 comments in prep for making the whole codebase C89 compatible.

2014-11-15 07:33:07 -08:00

ecdsa_impl.h

Make constant initializers independent from num

2014-12-01 12:38:38 +01:00

ecdsa.h

Switch all EC/ECDSA logic from num to scalar

2014-11-30 23:38:01 +01:00

eckey_impl.h

Switch all EC/ECDSA logic from num to scalar

2014-11-30 23:38:01 +01:00

eckey.h

Switch all EC/ECDSA logic from num to scalar

2014-11-30 23:38:01 +01:00

ecmult_gen_impl.h

Add bounds checking to field element setters

2014-11-26 15:21:31 +01:00

ecmult_gen.h

Switch to C89 comments in prep for making the whole codebase C89 compatible.

2014-11-15 07:33:07 -08:00

ecmult_impl.h

Avoid division when decomposing scalars

2014-12-02 16:50:00 +01:00

ecmult.h

Switch all EC/ECDSA logic from num to scalar

2014-11-30 23:38:01 +01:00

field_5x52_asm_impl.h

Switch to C89 comments in prep for making the whole codebase C89 compatible.

2014-11-15 07:33:07 -08:00

field_5x52_asm.asm

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field_5x52_impl.h

Require that r and b are different for field multiplication.

2014-12-01 13:40:34 +01:00

field_5x52_int128_impl.h

Make secp256k1_fe_mul_inner use the r != property

2014-12-01 13:40:36 +01:00

field_5x52.h

Switch to C89 comments in prep for making the whole codebase C89 compatible.

2014-11-15 07:33:07 -08:00

field_10x26_impl.h

Require that r and b are different for field multiplication.

2014-12-01 13:40:34 +01:00

field_10x26.h

Switch to C89 comments in prep for making the whole codebase C89 compatible.

2014-11-15 07:33:07 -08:00

field_gmp_impl.h

Require that r and b are different for field multiplication.

2014-12-01 13:40:34 +01:00

field_gmp.h

Switch to C89 comments in prep for making the whole codebase C89 compatible.

2014-11-15 07:33:07 -08:00

field_impl.h

Merge pull request #119

2014-12-02 16:42:50 +01:00

field.h

Merge pull request #119

2014-12-02 16:42:50 +01:00

group_impl.h

Merge pull request #119

2014-12-02 16:42:50 +01:00

group.h

Make constant initializers independent from num

2014-12-01 12:38:38 +01:00

num_gmp_impl.h

Avoid division when decomposing scalars

2014-12-02 16:50:00 +01:00

num_gmp.h

Switch to C89 comments in prep for making the whole codebase C89 compatible.

2014-11-15 07:33:07 -08:00

num_impl.h

Make num optional

2014-12-01 12:38:38 +01:00

num.h

Avoid division when decomposing scalars

2014-12-02 16:50:00 +01:00

scalar_4x64_impl.h

Add secp256k1_scalar_mul_shift_var

2014-12-02 16:50:00 +01:00

scalar_4x64.h

Switch to C89 comments in prep for making the whole codebase C89 compatible.

2014-11-15 07:33:07 -08:00

scalar_8x32_impl.h

Add secp256k1_scalar_mul_shift_var

2014-12-02 16:50:00 +01:00

scalar_8x32.h

Switch to C89 comments in prep for making the whole codebase C89 compatible.

2014-11-15 07:33:07 -08:00

scalar_impl.h

Avoid division when decomposing scalars

2014-12-02 16:50:00 +01:00

scalar.h

Add secp256k1_scalar_mul_shift_var

2014-12-02 16:50:00 +01:00

secp256k1.c

Move lambda-splitting code to scalar.

2014-11-30 23:38:01 +01:00

testrand_impl.h

Switch to C89 comments in prep for making the whole codebase C89 compatible.

2014-11-15 07:33:07 -08:00

testrand.h

Switch to C89 comments in prep for making the whole codebase C89 compatible.

2014-11-15 07:33:07 -08:00

tests.c

Add secp256k1_scalar_mul_shift_var

2014-12-02 16:50:00 +01:00

util.h

Require that r and b are different for field multiplication.

2014-12-01 13:40:34 +01:00