-/* scrypt.h */
-#ifndef SCRYPT_H
-#define SCRYPT_H
-
-#include <stdint.h>
-#include <assert.h>
-#include <stdio.h>
-
-struct Words16 {
- uint32_t w[16];
-};
-
-#define ROTL(a, b) (((a) << (b)) | ((a) >> (32 - (b))))
-
-inline void xor_salsa8(uint32_t B[16], const uint32_t Bx[16]) {
- uint32_t x00,x01,x02,x03,x04,x05,x06,x07,x08,x09,x10,x11,x12,x13,x14,x15;
- int i;
-
- x00 = (B[ 0] ^= Bx[ 0]);
- x01 = (B[ 1] ^= Bx[ 1]);
- x02 = (B[ 2] ^= Bx[ 2]);
- x03 = (B[ 3] ^= Bx[ 3]);
- x04 = (B[ 4] ^= Bx[ 4]);
- x05 = (B[ 5] ^= Bx[ 5]);
- x06 = (B[ 6] ^= Bx[ 6]);
- x07 = (B[ 7] ^= Bx[ 7]);
- x08 = (B[ 8] ^= Bx[ 8]);
- x09 = (B[ 9] ^= Bx[ 9]);
- x10 = (B[10] ^= Bx[10]);
- x11 = (B[11] ^= Bx[11]);
- x12 = (B[12] ^= Bx[12]);
- x13 = (B[13] ^= Bx[13]);
- x14 = (B[14] ^= Bx[14]);
- x15 = (B[15] ^= Bx[15]);
- for (i = 0; i < 8; i += 2) {
- /* Operate on columns. */
- x04 ^= ROTL(x00 + x12, 7); x09 ^= ROTL(x05 + x01, 7);
- x14 ^= ROTL(x10 + x06, 7); x03 ^= ROTL(x15 + x11, 7);
-
- x08 ^= ROTL(x04 + x00, 9); x13 ^= ROTL(x09 + x05, 9);
- x02 ^= ROTL(x14 + x10, 9); x07 ^= ROTL(x03 + x15, 9);
-
- x12 ^= ROTL(x08 + x04, 13); x01 ^= ROTL(x13 + x09, 13);
- x06 ^= ROTL(x02 + x14, 13); x11 ^= ROTL(x07 + x03, 13);
-
- x00 ^= ROTL(x12 + x08, 18); x05 ^= ROTL(x01 + x13, 18);
- x10 ^= ROTL(x06 + x02, 18); x15 ^= ROTL(x11 + x07, 18);
-
- /* Operate on rows. */
- x01 ^= ROTL(x00 + x03, 7); x06 ^= ROTL(x05 + x04, 7);
- x11 ^= ROTL(x10 + x09, 7); x12 ^= ROTL(x15 + x14, 7);
-
- x02 ^= ROTL(x01 + x00, 9); x07 ^= ROTL(x06 + x05, 9);
- x08 ^= ROTL(x11 + x10, 9); x13 ^= ROTL(x12 + x15, 9);
-
- x03 ^= ROTL(x02 + x01, 13); x04 ^= ROTL(x07 + x06, 13);
- x09 ^= ROTL(x08 + x11, 13); x14 ^= ROTL(x13 + x12, 13);
-
- x00 ^= ROTL(x03 + x02, 18); x05 ^= ROTL(x04 + x07, 18);
- x10 ^= ROTL(x09 + x08, 18); x15 ^= ROTL(x14 + x13, 18);
- }
- B[ 0] += x00;
- B[ 1] += x01;
- B[ 2] += x02;
- B[ 3] += x03;
- B[ 4] += x04;
- B[ 5] += x05;
- B[ 6] += x06;
- B[ 7] += x07;
- B[ 8] += x08;
- B[ 9] += x09;
- B[10] += x10;
- B[11] += x11;
- B[12] += x12;
- B[13] += x13;
- B[14] += x14;
- B[15] += x15;
-}
-
-struct Words32 {
- Words16 lo, hi;
- uint32_t get(uint32_t i) const {
- if(i<16) return lo.w[i];
- else if(i<32) return hi.w[i-16];
- else assert(false);
- }
- void xor_other(const Words32& other) {
- for(int i=0; i<16; i++) lo.w[i]^=other.lo.w[i];
- for(int i=0; i<16; i++) hi.w[i]^=other.hi.w[i];
- }
-};
-
-struct LTCMemory {
- Words32 w32[1024];
- const Words32& get(uint32_t i) const {
- assert(i<1024);
- return w32[i];
- }
- void printItems() {
- printf("\nprint scrypt items\n");
- for(int i = 0; i < 16; i++) {
- printf(" ");
- printf(" %u ", uint32_t(this->get(0).lo.w[i]));
- }
- }
- void scrypt(Words32& X) {
- for (int i = 0; i < 1024; i++) {
- w32[i]=X;
- xor_salsa8(X.lo.w, X.hi.w);
- xor_salsa8(X.hi.w, X.lo.w);
- }
- for (int i = 0; i < 1024; i++) {
- int j = X.hi.w[0] & 1023;
- X.xor_other(w32[j]);
- xor_salsa8(X.lo.w, X.hi.w);
- xor_salsa8(X.hi.w, X.lo.w);
- }
- }
-};
-
-#endif
+/* scrypt.h */\r
+#ifndef SCRYPT_H\r
+#define SCRYPT_H\r
+\r
+#include <stdint.h>\r
+#include <assert.h>\r
+#include <stdio.h>\r
+\r
+struct Words16 {\r
+ uint32_t w[16];\r
+};\r
+\r
+#define ROTL(a, b) (((a) << (b)) | ((a) >> (32 - (b))))\r
+\r
+inline void xor_salsa8(uint32_t B[16], const uint32_t Bx[16]) {\r
+ uint32_t x00,x01,x02,x03,x04,x05,x06,x07,x08,x09,x10,x11,x12,x13,x14,x15;\r
+ int i;\r
+\r
+ x00 = (B[ 0] ^= Bx[ 0]);\r
+ x01 = (B[ 1] ^= Bx[ 1]);\r
+ x02 = (B[ 2] ^= Bx[ 2]);\r
+ x03 = (B[ 3] ^= Bx[ 3]);\r
+ x04 = (B[ 4] ^= Bx[ 4]);\r
+ x05 = (B[ 5] ^= Bx[ 5]);\r
+ x06 = (B[ 6] ^= Bx[ 6]);\r
+ x07 = (B[ 7] ^= Bx[ 7]);\r
+ x08 = (B[ 8] ^= Bx[ 8]);\r
+ x09 = (B[ 9] ^= Bx[ 9]);\r
+ x10 = (B[10] ^= Bx[10]);\r
+ x11 = (B[11] ^= Bx[11]);\r
+ x12 = (B[12] ^= Bx[12]);\r
+ x13 = (B[13] ^= Bx[13]);\r
+ x14 = (B[14] ^= Bx[14]);\r
+ x15 = (B[15] ^= Bx[15]);\r
+ for (i = 0; i < 8; i += 2) {\r
+ /* Operate on columns. */\r
+ x04 ^= ROTL(x00 + x12, 7); x09 ^= ROTL(x05 + x01, 7);\r
+ x14 ^= ROTL(x10 + x06, 7); x03 ^= ROTL(x15 + x11, 7);\r
+\r
+ x08 ^= ROTL(x04 + x00, 9); x13 ^= ROTL(x09 + x05, 9);\r
+ x02 ^= ROTL(x14 + x10, 9); x07 ^= ROTL(x03 + x15, 9);\r
+\r
+ x12 ^= ROTL(x08 + x04, 13); x01 ^= ROTL(x13 + x09, 13);\r
+ x06 ^= ROTL(x02 + x14, 13); x11 ^= ROTL(x07 + x03, 13);\r
+\r
+ x00 ^= ROTL(x12 + x08, 18); x05 ^= ROTL(x01 + x13, 18);\r
+ x10 ^= ROTL(x06 + x02, 18); x15 ^= ROTL(x11 + x07, 18);\r
+\r
+ /* Operate on rows. */\r
+ x01 ^= ROTL(x00 + x03, 7); x06 ^= ROTL(x05 + x04, 7);\r
+ x11 ^= ROTL(x10 + x09, 7); x12 ^= ROTL(x15 + x14, 7);\r
+\r
+ x02 ^= ROTL(x01 + x00, 9); x07 ^= ROTL(x06 + x05, 9);\r
+ x08 ^= ROTL(x11 + x10, 9); x13 ^= ROTL(x12 + x15, 9);\r
+\r
+ x03 ^= ROTL(x02 + x01, 13); x04 ^= ROTL(x07 + x06, 13);\r
+ x09 ^= ROTL(x08 + x11, 13); x14 ^= ROTL(x13 + x12, 13);\r
+\r
+ x00 ^= ROTL(x03 + x02, 18); x05 ^= ROTL(x04 + x07, 18);\r
+ x10 ^= ROTL(x09 + x08, 18); x15 ^= ROTL(x14 + x13, 18);\r
+ }\r
+ B[ 0] += x00;\r
+ B[ 1] += x01;\r
+ B[ 2] += x02;\r
+ B[ 3] += x03;\r
+ B[ 4] += x04;\r
+ B[ 5] += x05;\r
+ B[ 6] += x06;\r
+ B[ 7] += x07;\r
+ B[ 8] += x08;\r
+ B[ 9] += x09;\r
+ B[10] += x10;\r
+ B[11] += x11;\r
+ B[12] += x12;\r
+ B[13] += x13;\r
+ B[14] += x14;\r
+ B[15] += x15;\r
+}\r
+\r
+struct Words32 {\r
+ Words16 lo, hi;\r
+ uint32_t get(uint32_t i) const {\r
+ if(i<16) return lo.w[i];\r
+ else if(i<32) return hi.w[i-16];\r
+ else assert(false);\r
+ }\r
+ void xor_other(const Words32& other) {\r
+ for(int i=0; i<16; i++) lo.w[i]^=other.lo.w[i];\r
+ for(int i=0; i<16; i++) hi.w[i]^=other.hi.w[i];\r
+ }\r
+};\r
+\r
+struct LTCMemory {\r
+ Words32 w32[1024];\r
+ const Words32& get(uint32_t i) const {\r
+ assert(i<1024);\r
+ return w32[i];\r
+ }\r
+ void printItems() {\r
+ printf("\nprint scrypt items\n");\r
+ for(int i = 0; i < 16; i++) {\r
+ printf(" ");\r
+ printf(" %u ", uint32_t(this->get(0).lo.w[i]));\r
+ }\r
+ }\r
+ void scrypt(Words32& X) {\r
+ for (int i = 0; i < 1024; i++) {\r
+ w32[i]=X;\r
+ xor_salsa8(X.lo.w, X.hi.w);\r
+ xor_salsa8(X.hi.w, X.lo.w);\r
+ }\r
+ for (int i = 0; i < 1024; i++) {\r
+ int j = X.hi.w[0] & 1023;\r
+ X.xor_other(w32[j]);\r
+ xor_salsa8(X.lo.w, X.hi.w);\r
+ xor_salsa8(X.hi.w, X.lo.w);\r
+ }\r
+ }\r
+};\r
+\r
+#endif\r
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