- if (encrypt)
- {
- c2l(iv,tout0);
- c2l(iv,tout1);
- iv-=8;
- for (l-=8; l>=0; l-=8)
- {
- c2l(in,tin0);
- c2l(in,tin1);
- tin0^=tout0;
- tin1^=tout1;
- tin[0]=tin0;
- tin[1]=tin1;
- RC5_32_encrypt(tin,ks);
- tout0=tin[0]; l2c(tout0,out);
- tout1=tin[1]; l2c(tout1,out);
- }
- if (l != -8)
- {
- c2ln(in,tin0,tin1,l+8);
- tin0^=tout0;
- tin1^=tout1;
- tin[0]=tin0;
- tin[1]=tin1;
- RC5_32_encrypt(tin,ks);
- tout0=tin[0]; l2c(tout0,out);
- tout1=tin[1]; l2c(tout1,out);
- }
- l2c(tout0,iv);
- l2c(tout1,iv);
- }
- else
- {
- c2l(iv,xor0);
- c2l(iv,xor1);
- iv-=8;
- for (l-=8; l>=0; l-=8)
- {
- c2l(in,tin0); tin[0]=tin0;
- c2l(in,tin1); tin[1]=tin1;
- RC5_32_decrypt(tin,ks);
- tout0=tin[0]^xor0;
- tout1=tin[1]^xor1;
- l2c(tout0,out);
- l2c(tout1,out);
- xor0=tin0;
- xor1=tin1;
- }
- if (l != -8)
- {
- c2l(in,tin0); tin[0]=tin0;
- c2l(in,tin1); tin[1]=tin1;
- RC5_32_decrypt(tin,ks);
- tout0=tin[0]^xor0;
- tout1=tin[1]^xor1;
- l2cn(tout0,tout1,out,l+8);
- xor0=tin0;
- xor1=tin1;
- }
- l2c(xor0,iv);
- l2c(xor1,iv);
- }
- tin0=tin1=tout0=tout1=xor0=xor1=0;
- tin[0]=tin[1]=0;
- }
+ if (encrypt) {
+ c2l(iv, tout0);
+ c2l(iv, tout1);
+ iv -= 8;
+ for (l -= 8; l >= 0; l -= 8) {
+ c2l(in, tin0);
+ c2l(in, tin1);
+ tin0 ^= tout0;
+ tin1 ^= tout1;
+ tin[0] = tin0;
+ tin[1] = tin1;
+ RC5_32_encrypt(tin, ks);
+ tout0 = tin[0];
+ l2c(tout0, out);
+ tout1 = tin[1];
+ l2c(tout1, out);
+ }
+ if (l != -8) {
+ c2ln(in, tin0, tin1, l + 8);
+ tin0 ^= tout0;
+ tin1 ^= tout1;
+ tin[0] = tin0;
+ tin[1] = tin1;
+ RC5_32_encrypt(tin, ks);
+ tout0 = tin[0];
+ l2c(tout0, out);
+ tout1 = tin[1];
+ l2c(tout1, out);
+ }
+ l2c(tout0, iv);
+ l2c(tout1, iv);
+ } else {
+ c2l(iv, xor0);
+ c2l(iv, xor1);
+ iv -= 8;
+ for (l -= 8; l >= 0; l -= 8) {
+ c2l(in, tin0);
+ tin[0] = tin0;
+ c2l(in, tin1);
+ tin[1] = tin1;
+ RC5_32_decrypt(tin, ks);
+ tout0 = tin[0] ^ xor0;
+ tout1 = tin[1] ^ xor1;
+ l2c(tout0, out);
+ l2c(tout1, out);
+ xor0 = tin0;
+ xor1 = tin1;
+ }
+ if (l != -8) {
+ c2l(in, tin0);
+ tin[0] = tin0;
+ c2l(in, tin1);
+ tin[1] = tin1;
+ RC5_32_decrypt(tin, ks);
+ tout0 = tin[0] ^ xor0;
+ tout1 = tin[1] ^ xor1;
+ l2cn(tout0, tout1, out, l + 8);
+ xor0 = tin0;
+ xor1 = tin1;
+ }
+ l2c(xor0, iv);
+ l2c(xor1, iv);
+ }
+ tin0 = tin1 = tout0 = tout1 = xor0 = xor1 = 0;
+ tin[0] = tin[1] = 0;
+}