import kpasman 0.1 sources

rc2-1.1.0/rc2.c

@@ -0,0 +1,103 @@
+#include <stdio.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+#include <rc2.h>
+
+void rc2(void);
+void derc2(void);
+
+int main(int argc, char *argv[])
+{
+	unsigned int i, j = 0, keypiece, keylength;
+	unsigned char temp[3], key[128];
+
+	if (argc < 3) {
+		exit(0);
+	}
+	if (!strncmp("0x",argv[1],2)) {
+		for (i = 2; argv[1][i] != '\0'; j++) {
+			temp[0] = argv[1][i++];
+			temp[1] = argv[1][i++];
+			temp[2] = '\0';
+			keypiece = (int) strtol(temp, NULL, 16);
+			key[j] = (char) keypiece;		
+		}
+	} else {
+		for (j = 0; argv[1][j] != '\0'; j++) {
+			key[j] = argv[1][j];
+		}
+	}
+	keylength = j;
+	rc2_expandkey(key, keylength, atoi(argv[2]));
+	if (!strcmp(argv[0],"rc2")) {
+		rc2();
+	} else if (!strcmp(argv[0],"derc2")) {
+		derc2();
+	} else {
+	}
+	return 0;
+}
+
+void rc2()
+{
+	unsigned char charbuf[8];
+	unsigned short text[4];
+	unsigned int count, i;
+	
+	do {
+		count = read(fileno(stdin),charbuf,8);
+		if (count == 0) {
+			exit(0);
+		}
+		if (count < 8) {
+			for (i = count; i < 8; i++) {
+				charbuf[i] = '\0';
+			}
+		}
+		for (i = 0; i < 4; i++) {
+			text[i] = charbuf[i * 2] + 256 * charbuf[i * 2 + 1];
+		}
+		rc2_encrypt(text);
+		for (i = 0; i < 4; i++) {
+			charbuf[i * 2] = text[i] & 0xff;
+			charbuf[i * 2 + 1] = text[i] >> 8;
+		}
+		for (i = 0; i < 8; i++) {
+			putchar((int) charbuf[i]);
+		}
+	} while (count == 8);
+	exit(0);
+}
+
+void derc2()
+{
+	unsigned char charbuf[8];
+	unsigned short text[4];
+	unsigned int count, i;
+	
+	do {
+		count = read(fileno(stdin),charbuf,8);
+		if (count == 0) {
+			exit(0);
+		}
+		if (count < 8) {
+			for (i = count; i < 8; i++) {
+				charbuf[i] = '\0';
+			}
+		}
+		for (i = 0; i < 4; i++) {
+			text[i] = charbuf[i * 2] + 256 * charbuf[i * 2 + 1];
+		}
+		rc2_decrypt(text);
+		for (i = 0; i < 4; i++) {
+			charbuf[i * 2] = text[i] & 0xff;
+			charbuf[i * 2 + 1] = text[i] >> 8;
+		}
+		for (i = 0; i < 8; i++) {
+			putchar((int) charbuf[i]);
+		}
+	} while (count == 8);
+	exit(0);
+}