diff options
Diffstat (limited to 'usr/src/cmd/crypt')
| -rw-r--r-- | usr/src/cmd/crypt/Makefile | 59 | ||||
| -rw-r--r-- | usr/src/cmd/crypt/crypt.c | 204 |
2 files changed, 263 insertions, 0 deletions
diff --git a/usr/src/cmd/crypt/Makefile b/usr/src/cmd/crypt/Makefile new file mode 100644 index 0000000000..2db525cb12 --- /dev/null +++ b/usr/src/cmd/crypt/Makefile @@ -0,0 +1,59 @@ +# +# CDDL HEADER START +# +# The contents of this file are subject to the terms of the +# Common Development and Distribution License, Version 1.0 only +# (the "License"). You may not use this file except in compliance +# with the License. +# +# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE +# or http://www.opensolaris.org/os/licensing. +# See the License for the specific language governing permissions +# and limitations under the License. +# +# When distributing Covered Code, include this CDDL HEADER in each +# file and include the License file at usr/src/OPENSOLARIS.LICENSE. +# If applicable, add the following below this CDDL HEADER, with the +# fields enclosed by brackets "[]" replaced with your own identifying +# information: Portions Copyright [yyyy] [name of copyright owner] +# +# CDDL HEADER END +# +# +#pragma ident "%Z%%M% %I% %E% SMI" +# +# Copyright 2005 Sun Microsystems, Inc. All rights reserved. +# Use is subject to license terms. +# + +PROG= crypt + +include ../Makefile.cmd + +LDLIBS += -lcrypt + +.KEEP_STATE: + +all: $(PROG) + +install: all $(ROOTPROG) + +clean: + +lint: lint_PROG + +include ../Makefile.targ + +# EXPORT DELETE START +EXPORT_SRC: + $(RM) $(PROG).c+ Makefile+ + sed -e "/EXPORT DELETE START/,/EXPORT DELETE END/d" \ + < $(PROG).c > $(PROG).c+ + $(MV) $(PROG).c+ $(PROG).c + sed -e "/^# EXPORT DELETE START/,/^# EXPORT DELETE END/d" \ + < Makefile > Makefile+ + $(RM) Makefile + $(MV) Makefile+ Makefile + $(CHMOD) 444 Makefile $(PROG).c + +# EXPORT DELETE END diff --git a/usr/src/cmd/crypt/crypt.c b/usr/src/cmd/crypt/crypt.c new file mode 100644 index 0000000000..ffb9ca0b9b --- /dev/null +++ b/usr/src/cmd/crypt/crypt.c @@ -0,0 +1,204 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License, Version 1.0 only + * (the "License"). You may not use this file except in compliance + * with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ +/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ +/* All Rights Reserved */ + + +/* + * Copyright 2004 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#pragma ident "%Z%%M% %I% %E% SMI" +/* + * A one-rotor machine designed along the lines of Enigma + * but considerably trivialized. + */ + +/* EXPORT DELETE START */ +#define ECHO 010 +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> +#include <string.h> +#include <crypt.h> +#include <errno.h> + +#define ROTORSZ 256 +#define MASK 0377 +char t1[ROTORSZ]; +char t2[ROTORSZ]; +char t3[ROTORSZ]; + +static void +setup(pw) +char *pw; +{ + int ic, i, k, temp; + unsigned random; + char buf[13]; + long seed; + char *ret; + int err; + + (void) strncpy(buf, pw, 8); + buf[8] = buf[0]; + buf[9] = buf[1]; + errno = 0; + ret = des_crypt(buf, &buf[8]); + if (ret == NULL) { + err = errno; + (void) fprintf(stderr, "crypt: setup failed, unable to" + " initialize rotors: %s\n", strerror(err)); + exit(1); + } + (void) strncpy(buf, ret, 13); + seed = 123; + for (i = 0; i < 13; i++) + seed = seed*buf[i] + i; + for (i = 0; i < ROTORSZ; i++) { + t1[i] = i; + t3[i] = 0; + } + for (i = 0; i < ROTORSZ; i++) { + seed = 5*seed + buf[i%13]; + random = seed % 65521; + k = ROTORSZ-1 - i; + ic = (random&MASK)%(k+1); + random >>= 8; + temp = t1[k]; + t1[k] = t1[ic]; + t1[ic] = temp; + if (t3[k] != 0) continue; + ic = (random&MASK) % k; + while (t3[ic] != 0) ic = (ic+1) % k; + t3[k] = ic; + t3[ic] = k; + } + for (i = 0; i < ROTORSZ; i++) + t2[t1[i]&MASK] = i; +} +/* EXPORT DELETE END */ + +int +main(int argc, char **argv) +{ +/* EXPORT DELETE START */ + extern int optind; + char *p1; + int i, n1, n2, nchar; + int c; + struct { + long offset; + unsigned int count; + } header; + int pflag = 0; + int kflag = 0; + char *buf; + char key[8]; + char *keyvar = "CrYpTkEy=XXXXXXXX"; + char *s; + + if (argc < 2) { + if ((buf = (char *)getpass("Enter key:")) == NULL) { + (void) fprintf(stderr, "Cannot open /dev/tty\n"); + exit(1); + } + setup(buf); + } else { + while ((c = getopt(argc, argv, "pk")) != EOF) + switch (c) { + case 'p': + /* notify editor that exec has succeeded */ + if (write(1, "y", 1) != 1) + exit(1); + if (read(0, key, 8) != 8) + exit(1); + setup(key); + pflag = 1; + break; + case 'k': + if ((s = getenv("CrYpTkEy")) == (char *)NULL) { + (void) fprintf(stderr, + "CrYpTkEy not set.\n"); + exit(1); + } + (void) strncpy(key, s, 8); + setup(key); + kflag = 1; + break; + case '?': + (void) fprintf(stderr, + "usage: crypt [ -k ] [ key]\n"); + exit(2); + } + if (pflag == 0 && kflag == 0) { + (void) strncpy(keyvar+9, argv[optind], 8); + (void) putenv(keyvar); + (void) execlp("crypt", "crypt", "-k", 0); + } + } + if (pflag) + for (;;) { + if ((nchar = read(0, (char *)&header, sizeof (header))) + != sizeof (header)) + exit(nchar); + n1 = (int)(header.offset&MASK); + n2 = (int)((header.offset >> 8) &MASK); + nchar = header.count; + buf = (char *)malloc(nchar); + p1 = buf; + if (read(0, buf, nchar) != nchar) + exit(1); + while (nchar--) { + *p1 = t2[(t3[(t1[(*p1 + n1)&MASK]+ + n2)&MASK] - n2)&MASK] - n1; + n1++; + if (n1 == ROTORSZ) { + n1 = 0; + n2++; + if (n2 == ROTORSZ) n2 = 0; + } + p1++; + } + nchar = header.count; + if (write(1, buf, nchar) != nchar) + exit(1); + free(buf); + } + + n1 = 0; + n2 = 0; + + while ((i = getchar()) >= 0) { + i = t2[(t3[(t1[(i+n1)&MASK]+n2)&MASK]-n2)&MASK]-n1; + (void) putchar(i); + n1++; + if (n1 == ROTORSZ) { + n1 = 0; + n2++; + if (n2 == ROTORSZ) n2 = 0; + } + } + return (0); +/* EXPORT DELETE END */ +} |