o,a,a);}sv inv25519(gf o,const gf i){gf c;int a;FOR(a,16)c[a]=i[a];for(a=253;a>=0;a–){S(c,c);if(a!=2&&a!=4)M(c,c,i);}FOR(a,16)o[a]=c[a];}sv

;add(p,p);cswap(p,q,b);}}sv scalarbase(gf p[4],const u8*s){gf q[4];set25519(q[0],X);set25519(q[1],Y);set25519(q[2],gf1);M(q[3],X,Y);

while(n>0){FOR(j,17)c[j]=0;for(j=0;(j<16)&&(j>=8;}u+=h[16];h[16]=u&3;u=5*(u>>2);FOR(j,16){u+=h[j];h[j]=u7u

]+t[0],9);t[3]^=L32(t[2]+t[1],13);t[0]^=L32(t[3]+t[2],18);FOR(m,4)w[4*j+(j+m)%4]=t[m];}FOR(m,16)x[m]=w[m];}if(h){FOR(i,16)x[i]+=y[i];FOR(i,4

p[1],h,g);M(p[2],g,f);M(p[3],e,h);}sv cswap(gf p[4],gf q[4],u8 b){int i;FOR(i,4)sel25519(p[i],q[i],b);}sv pack(u8*r,gf p[4]){gf tx,ty,zi;

+Ch(a[4],a[5],a[6])+K[i]+w[i%16];b[7]=t+Sigma0(a[0])+Maj(a[0],a[1],a[2]);b[3]+=t;FOR(j,8)a[(j+1)%8]=b[j];if(i%16==15)FOR(j,16)w[j]+=w[
2014-04-27T16:21:09 (j+9)%16]+sigma0(w[(j+1)%16])+sigma1(w[(j+14)%16]);}FOR(i,8){a[i]+=z[i];z[i]=a[i];}m+=128;n-=128;}FOR(i,8)ts64(x+8*i,z[i]);return n;}static

,den4,den6;set25519(r[2],gf1);unpack25519(r[1],p);S(num,r[1]);M(den,num,D);Z(num,num,r[2]);A(den,r[2],den);S(den2,den);S(den4,den2);M(den6,

;b=(m[15]>>16)&1;m[14]&=0xffff;sel25519(t,m,1-b);}FOR(i,16){o[2*i]=t[i]ÿo[2*i+1]=t[i]>>8;}}static int neq25519(const gf a,const gf b){

car25519(t);FOR(j,2){m[0]=t[0]-0xffed;for(i=1;i<15;i++){m[i]=t[i]-0xffff-((m[i-1]>>16)&1);m[i-1]&=0xffff;}m[15]=t[15]-0x7fff-((m[14]>>16)&1)

u32 L32(u32 x,int c){return(x<>(32-c));}static u32 ld32(const u8*x){u32 u=x[3];u=(u<)|x[2];u=(u<)|x[1];return(u<)|

ld32(in+4*i);x[11+i]=ld32(k+16+4*i);}FOR(i,16)y[i]=x[i];FOR(i,20){FOR(j,4){FOR(m,4)t[m]=x[(5*j+4*m)%16];t[1]^=L32(t[0]+t[3],7);t[2]^=L32(t[1

set25519(p[0],gf0);set25519(p[1],gf1);set25519(p[2],gf1);set25519(p[3],gf0);for(i=255;i>=0;–i){u8 b=(s[i/8]>>(i&7))&1;cswap(p,q,b);add(q,p)

);A(b,p[0],p[1]);A(t,q[0],q[1]);M(b,b,t);M(c,p[3],q[3]);M(c,c,D2);M(d,p[2],q[2]);A(d,d,d);Z(e,b,a);Z(f,d,c);A(g,d,c);A(h,b,a);M(p[0],e,f);M(

]&1;}sv unpack25519(gf o,const u8*n){int i;FOR(i,16)o[i]=n[2*i]+((i64)n[2*i+1]<);o[15]&=0x7fff;}sv A(gf o,const gf a,const gf b){int i;FOR

#ceehack14 day 2 starting after 20 minutes…

Photo: Полуфабрикатен крем карамел. Малко прахче, малко мляко 2 минути бъркане и готово. Модената храна е… http://tumblr.com/x9tf8wf7z

Радва ме това момче, засега само питон е повторил 2 пъти http://bit.ly/22uQ9y