Commit d274c648 authored by Mike Hamburg's avatar Mike Hamburg

fix performance regression for montgomery ladder

parent 5a0abe8c
......@@ -285,20 +285,20 @@ montgomery_step (
ANALYZE_THIS_ROUTINE_CAREFULLY;
field_a_t L0, L1;
field_add_nr ( L0, a->zd, a->xd );
field_sub ( L1, a->xd, a->zd );
field_sub ( a->zd, a->xa, a->za );
field_subx_nr ( L1, a->xd, a->zd );
field_subx_nr ( a->zd, a->xa, a->za );
field_mul ( a->xd, L0, a->zd );
field_add_nr ( a->zd, a->za, a->xa );
field_mul ( a->za, L1, a->zd );
field_add_nr ( a->xa, a->za, a->xd );
field_sqr ( a->zd, a->xa );
field_mul ( a->xa, a->z0, a->zd );
field_sub ( a->zd, a->xd, a->za );
field_subx_nr ( a->zd, a->xd, a->za );
field_sqr ( a->za, a->zd );
field_sqr ( a->xd, L0 );
field_sqr ( L0, L1 );
field_mulw_scc ( a->zd, a->xd, 1-EDWARDS_D ); /* FIXME PERF MULW */
field_sub ( L1, a->xd, L0 );
field_subx_nr ( L1, a->xd, L0 );
field_mul ( a->xd, L0, a->zd );
field_sub_nr ( L0, a->zd, L1 );
field_bias ( L0, 4 - 2*is32 /*is32 ? 2 : 4*/ );
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment