53 100% Public Domain
58 Still 100% Public Domain
95 Still 100% public domain
104 Still 100% PD
144 #define R0(v,w,x,y,z,i) \  argument
145 	z += ((w & (x ^ y)) ^ y) + blk0(i) + 0x5A827999 + rol(v, 5); \
146 	w = rol(w, 30);
147 #define R1(v,w,x,y,z,i) \  argument
148 	z += ((w & (x ^ y)) ^ y) + blk(i) + 0x5A827999 + rol(v, 5); \
149 	w = rol(w, 30);
150 #define R2(v,w,x,y,z,i) \  argument
151 	z += (w ^ x ^ y) + blk(i) + 0x6ED9EBA1 + rol(v, 5); w = rol(w, 30);
152 #define R3(v,w,x,y,z,i) \  argument
153 	z += (((w | x) & y) | (w & x)) + blk(i) + 0x8F1BBCDC + rol(v, 5); \
154 	w = rol(w, 30);
155 #define R4(v,w,x,y,z,i) \  argument
156 	z += (w ^ x ^ y) + blk(i) + 0xCA62C1D6 + rol(v, 5); \
157 	w=rol(w, 30);