initial commit

sbox/BJNR000010949.pass

@@ -0,0 +1 @@
+grundgesetz

sbox/Makefile

@@ -0,0 +1,19 @@
+LDFLAGS = -g
+CFLAGS  = -g -Wall -Wextra -Werror
+DST     = gen-static-sbox
+OBJS    = gen-static-sbox.o
+
+all: $(DST)
+
+$(DST): $(OBJS)
+	gcc $(LDFLAGS) $(OBJS) -o $(DST)
+
+%.o: %.c
+	gcc -c $(CFLAGS) $*.c -o $*.o
+
+clean:
+	rm -f *.o $(DST)
+
+
+sboxes:
+	cat BJNR000010949.epub | openssl aes-256-cbc -kfile BJNR000010949.pass | ./$(DST)

sbox/gen-static-sbox.c

@@ -0,0 +1,58 @@
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <ctype.h>
+#include <math.h>
+
+typedef uint8_t  byte;
+typedef uint32_t word;
+typedef uint16_t half;
+
+#define MAX 4096
+
+void dump256(byte *hash) {
+  int i, b = 1;
+  
+  for(i=0; i<256; i++) {
+    fprintf(stderr, "0x%02x, ", hash[i]);
+    if(b == 16) {
+      fprintf(stderr, "\n");
+      b = 1;
+    }
+    else
+      b++;
+  }
+
+  fprintf(stderr, "\n");
+}
+
+int main() {
+  byte raw[MAX];
+  byte hash[256] = {0}, reg[256] = {0}, out;
+  int i, b=0, has=0;
+  
+  fread(raw, MAX, 1, stdin);
+
+  memset(hash, 0, 256);
+  
+  for (i=0; i<MAX; i++) {
+    out = raw[i];
+    if(reg[out] == 0) {
+      reg[out]++;
+      hash[b++] = out;
+      has++;
+    }
+    if(has == 256) {
+      dump256(hash);
+      has = b = 0;
+      memset(hash, 0, 256);
+      memset(reg, 0, 256);
+    }
+  }
+
+  //fwrite(hash, 256, 1, stdout);
+  fprintf(stderr, "done\n");
+  return 0;
+}