endian不問なSHA1&MD5 (と言いつつbig endianでは未検証)

/* unsigned=32bitなSHA1 */
unsigned*p,H[186],*q=H,n,d=8,z,l,h;F(v){q[n/4]|=(v&255)<<(~n&3)*8;}L(c){q=H+90;
F(c);if(++n>63){for(n=80,p=memcpy(q-5,H,20);n;1[p--]=d/4|d<<30)d=q[13]^q[8]^q[2
]^*q,q[16]=d>>31|d+d,d=p[1],z=p[2],c=p[3],p[-1]=(*p<<5|*p>>27)+p[4]+0x5a827999+
*q+++(--n/5&4?n>39?c^d&(z^c):882459459+(d&(z|c)|z&c):(39<n?341275144:0x6fe0483d
)+(d^z^c));for(memset(H+90,0,64);H-p--;)*p+=p[5];}}main(){for(;n=d--;n+=8,F(~z)
)n=d^3,F(z=d*34+1);for(q[4]=0xc3d2e1f0;z=~getchar();h+=!(l+=8))L(~z);for(L(128)
;n-56;)L(0);for(q[14]=h,n=63,L(q[15]=l);n<5;)printf("%08x",H[n++]);}

/* unsigned=32bitなMD5 */
double sin(),fabs();unsigned*q,s[63],X[63],B,C,x,y,E[63],j=8,g=16;F(v){q[y/4]|=
(v&255)<<y%4*8;}L(z){F(z);if(++y>63){for(memcpy(s,E,g);j-63;y=s[-j&3]+X["@AE@"[
j/g]+"AECG"[j/g]*j&15]+(j/g?j>31?y^(j&g?x|~z:x^z):x&z|y&~z:x&y|~x&z)+fabs(sin(j
+1.))*(~0U+1.),z="GLQVEINTDKPWFJOU"[j/g*4|j&3]&31,s[-j&3]=x+=y<<z|y>>32-z)x=s[-
j++&3],y=s[2-j&3],z=s[~j&3];for(;j--;E[j]+=s[j])X[j]=y=0;}}main(){for(q=E;y=j--
;y+=8,F(~x))F(x=--y*34+1);for(q=X;x=~getchar();B+=!(C+=8))L(~x);for(L(128);y-56
;)L(0);for(X[14]=C,X[15]=B,y=63,L(0);++j<g;printf("%02x",E[j/4]>>j%4*8&255));}