tor

The Tor anonymity network
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ge_p2_dbl.q (625B)


      1 :name:fe:r->X:r->Y:r->Z:r->T:t0:t1:t2:t3:t4:t5:p->X:p->Y:p->Z:
      2 fe r:var/r=fe:
      3 
      4 enter f:enter/f:>X1=fe#11:>Y1=fe#12:>Z1=fe#13:
      5 return:nofallthrough:<X3=fe#1:<Y3=fe#2:<Z3=fe#3:<T3=fe#4:leave:
      6 
      7 h=f+g:<f=fe:<g=fe:>h=fe:asm/fe_add(>h,<f,<g);:
      8 h=f-g:<f=fe:<g=fe:>h=fe:asm/fe_sub(>h,<f,<g);:
      9 h=f*g:<f=fe:<g=fe:>h=fe:asm/fe_mul(>h,<f,<g);:
     10 h=f^2:<f=fe:>h=fe:asm/fe_sq(>h,<f);:
     11 h=2*f^2:<f=fe:>h=fe:asm/fe_sq2(>h,<f);:
     12 h=2*g:<g=fe:>h=fe:asm/fe_add(>h,<g,<g);:
     13 
     14 :
     15 
     16 enter ge_p2_dbl
     17 
     18 fe X1
     19 fe Y1
     20 fe Z1
     21 fe A
     22 fe AA
     23 fe XX
     24 fe YY
     25 fe B
     26 fe X3
     27 fe Y3
     28 fe Z3
     29 fe T3
     30 
     31 XX=X1^2
     32 YY=Y1^2
     33 B=2*Z1^2
     34 A=X1+Y1
     35 AA=A^2
     36 Y3=YY+XX
     37 Z3=YY-XX
     38 X3=AA-Y3
     39 T3=B-Z3
     40 
     41 return