-/* apps/passwd.c */
-
-#if defined OPENSSL_NO_MD5 || defined CHARSET_EBCDIC
-# define NO_MD5CRYPT_1
-#endif
-
-#if !defined(OPENSSL_NO_DES) || !defined(NO_MD5CRYPT_1)
+/*
+ * Copyright 2000-2018 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the OpenSSL license (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
-#include <assert.h>
#include <string.h>
#include "apps.h"
+#include "progs.h"
#include <openssl/bio.h>
#include <openssl/err.h>
#ifndef OPENSSL_NO_DES
# include <openssl/des.h>
#endif
-#ifndef NO_MD5CRYPT_1
-# include <openssl/evp.h>
-# include <openssl/md5.h>
-#endif
-
-
-#undef PROG
-#define PROG passwd_main
+#include <openssl/md5.h>
+#include <openssl/sha.h>
+
+static unsigned const char cov_2char[64] = {
+ /* from crypto/des/fcrypt.c */
+ 0x2E, 0x2F, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35,
+ 0x36, 0x37, 0x38, 0x39, 0x41, 0x42, 0x43, 0x44,
+ 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x4B, 0x4C,
+ 0x4D, 0x4E, 0x4F, 0x50, 0x51, 0x52, 0x53, 0x54,
+ 0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0x61, 0x62,
+ 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6A,
+ 0x6B, 0x6C, 0x6D, 0x6E, 0x6F, 0x70, 0x71, 0x72,
+ 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A
+};
+static const char ascii_dollar[] = { 0x24, 0x00 };
-static unsigned const char cov_2char[64]={
- /* from crypto/des/fcrypt.c */
- 0x2E,0x2F,0x30,0x31,0x32,0x33,0x34,0x35,
- 0x36,0x37,0x38,0x39,0x41,0x42,0x43,0x44,
- 0x45,0x46,0x47,0x48,0x49,0x4A,0x4B,0x4C,
- 0x4D,0x4E,0x4F,0x50,0x51,0x52,0x53,0x54,
- 0x55,0x56,0x57,0x58,0x59,0x5A,0x61,0x62,
- 0x63,0x64,0x65,0x66,0x67,0x68,0x69,0x6A,
- 0x6B,0x6C,0x6D,0x6E,0x6F,0x70,0x71,0x72,
- 0x73,0x74,0x75,0x76,0x77,0x78,0x79,0x7A
-};
+typedef enum {
+ passwd_unset = 0,
+ passwd_crypt,
+ passwd_md5,
+ passwd_apr1,
+ passwd_sha256,
+ passwd_sha512,
+ passwd_aixmd5
+} passwd_modes;
static int do_passwd(int passed_salt, char **salt_p, char **salt_malloc_p,
- char *passwd, BIO *out, int quiet, int table, int reverse,
- size_t pw_maxlen, int usecrypt, int use1, int useapr1);
-
-/* -crypt - standard Unix password algorithm (default)
- * -1 - MD5-based password algorithm
- * -apr1 - MD5-based password algorithm, Apache variant
- * -salt string - salt
- * -in file - read passwords from file
- * -stdin - read passwords from stdin
- * -noverify - never verify when reading password from terminal
- * -quiet - no warnings
- * -table - format output as table
- * -reverse - switch table columns
- */
+ char *passwd, BIO *out, int quiet, int table,
+ int reverse, size_t pw_maxlen, passwd_modes mode);
+
+typedef enum OPTION_choice {
+ OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
+ OPT_IN,
+ OPT_NOVERIFY, OPT_QUIET, OPT_TABLE, OPT_REVERSE, OPT_APR1,
+ OPT_1, OPT_5, OPT_6, OPT_CRYPT, OPT_AIXMD5, OPT_SALT, OPT_STDIN,
+ OPT_R_ENUM
+} OPTION_CHOICE;
+
+const OPTIONS passwd_options[] = {
+ {"help", OPT_HELP, '-', "Display this summary"},
+ {"in", OPT_IN, '<', "Read passwords from file"},
+ {"noverify", OPT_NOVERIFY, '-',
+ "Never verify when reading password from terminal"},
+ {"quiet", OPT_QUIET, '-', "No warnings"},
+ {"table", OPT_TABLE, '-', "Format output as table"},
+ {"reverse", OPT_REVERSE, '-', "Switch table columns"},
+ {"salt", OPT_SALT, 's', "Use provided salt"},
+ {"stdin", OPT_STDIN, '-', "Read passwords from stdin"},
+ {"6", OPT_6, '-', "SHA512-based password algorithm"},
+ {"5", OPT_5, '-', "SHA256-based password algorithm"},
+ {"apr1", OPT_APR1, '-', "MD5-based password algorithm, Apache variant"},
+ {"1", OPT_1, '-', "MD5-based password algorithm"},
+ {"aixmd5", OPT_AIXMD5, '-', "AIX MD5-based password algorithm"},
+#ifndef OPENSSL_NO_DES
+ {"crypt", OPT_CRYPT, '-', "Standard Unix password algorithm (default)"},
+#endif
+ OPT_R_OPTIONS,
+ {NULL}
+};
-int MAIN(int, char **);
-
-int MAIN(int argc, char **argv)
- {
- int ret = 1;
- char *infile = NULL;
- int in_stdin = 0;
- int in_noverify = 0;
- char *salt = NULL, *passwd = NULL, **passwds = NULL;
- char *salt_malloc = NULL, *passwd_malloc = NULL;
- size_t passwd_malloc_size = 0;
- int pw_source_defined = 0;
- BIO *in = NULL, *out = NULL;
- int i, badopt, opt_done;
- int passed_salt = 0, quiet = 0, table = 0, reverse = 0;
- int usecrypt = 0, use1 = 0, useapr1 = 0;
- size_t pw_maxlen = 0;
-
- apps_startup();
-
- if (bio_err == NULL)
- if ((bio_err=BIO_new(BIO_s_file())) != NULL)
- BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
- out = BIO_new(BIO_s_file());
- if (out == NULL)
- goto err;
- BIO_set_fp(out, stdout, BIO_NOCLOSE | BIO_FP_TEXT);
-#ifdef OPENSSL_SYS_VMS
- {
- BIO *tmpbio = BIO_new(BIO_f_linebuffer());
- out = BIO_push(tmpbio, out);
- }
+int passwd_main(int argc, char **argv)
+{
+ BIO *in = NULL;
+ char *infile = NULL, *salt = NULL, *passwd = NULL, **passwds = NULL;
+ char *salt_malloc = NULL, *passwd_malloc = NULL, *prog;
+ OPTION_CHOICE o;
+ int in_stdin = 0, pw_source_defined = 0;
+#ifndef OPENSSL_NO_UI_CONSOLE
+ int in_noverify = 0;
+#endif
+ int passed_salt = 0, quiet = 0, table = 0, reverse = 0;
+ int ret = 1;
+ passwd_modes mode = passwd_unset;
+ size_t passwd_malloc_size = 0;
+ size_t pw_maxlen = 256; /* arbitrary limit, should be enough for most
+ * passwords */
+
+ prog = opt_init(argc, argv, passwd_options);
+ while ((o = opt_next()) != OPT_EOF) {
+ switch (o) {
+ case OPT_EOF:
+ case OPT_ERR:
+ opthelp:
+ BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
+ goto end;
+ case OPT_HELP:
+ opt_help(passwd_options);
+ ret = 0;
+ goto end;
+ case OPT_IN:
+ if (pw_source_defined)
+ goto opthelp;
+ infile = opt_arg();
+ pw_source_defined = 1;
+ break;
+ case OPT_NOVERIFY:
+#ifndef OPENSSL_NO_UI_CONSOLE
+ in_noverify = 1;
+#endif
+ break;
+ case OPT_QUIET:
+ quiet = 1;
+ break;
+ case OPT_TABLE:
+ table = 1;
+ break;
+ case OPT_REVERSE:
+ reverse = 1;
+ break;
+ case OPT_1:
+ if (mode != passwd_unset)
+ goto opthelp;
+ mode = passwd_md5;
+ break;
+ case OPT_5:
+ if (mode != passwd_unset)
+ goto opthelp;
+ mode = passwd_sha256;
+ break;
+ case OPT_6:
+ if (mode != passwd_unset)
+ goto opthelp;
+ mode = passwd_sha512;
+ break;
+ case OPT_APR1:
+ if (mode != passwd_unset)
+ goto opthelp;
+ mode = passwd_apr1;
+ break;
+ case OPT_AIXMD5:
+ if (mode != passwd_unset)
+ goto opthelp;
+ mode = passwd_aixmd5;
+ break;
+ case OPT_CRYPT:
+#ifndef OPENSSL_NO_DES
+ if (mode != passwd_unset)
+ goto opthelp;
+ mode = passwd_crypt;
#endif
+ break;
+ case OPT_SALT:
+ passed_salt = 1;
+ salt = opt_arg();
+ break;
+ case OPT_STDIN:
+ if (pw_source_defined)
+ goto opthelp;
+ in_stdin = 1;
+ pw_source_defined = 1;
+ break;
+ case OPT_R_CASES:
+ if (!opt_rand(o))
+ goto end;
+ break;
+ }
+ }
+ argc = opt_num_rest();
+ argv = opt_rest();
+
+ if (*argv != NULL) {
+ if (pw_source_defined)
+ goto opthelp;
+ pw_source_defined = 1;
+ passwds = argv;
+ }
+
+ if (mode == passwd_unset) {
+ /* use default */
+ mode = passwd_crypt;
+ }
- badopt = 0, opt_done = 0;
- i = 0;
- while (!badopt && !opt_done && argv[++i] != NULL)
- {
- if (strcmp(argv[i], "-crypt") == 0)
- usecrypt = 1;
- else if (strcmp(argv[i], "-1") == 0)
- use1 = 1;
- else if (strcmp(argv[i], "-apr1") == 0)
- useapr1 = 1;
- else if (strcmp(argv[i], "-salt") == 0)
- {
- if ((argv[i+1] != NULL) && (salt == NULL))
- {
- passed_salt = 1;
- salt = argv[++i];
- }
- else
- badopt = 1;
- }
- else if (strcmp(argv[i], "-in") == 0)
- {
- if ((argv[i+1] != NULL) && !pw_source_defined)
- {
- pw_source_defined = 1;
- infile = argv[++i];
- }
- else
- badopt = 1;
- }
- else if (strcmp(argv[i], "-stdin") == 0)
- {
- if (!pw_source_defined)
- {
- pw_source_defined = 1;
- in_stdin = 1;
- }
- else
- badopt = 1;
- }
- else if (strcmp(argv[i], "-noverify") == 0)
- in_noverify = 1;
- else if (strcmp(argv[i], "-quiet") == 0)
- quiet = 1;
- else if (strcmp(argv[i], "-table") == 0)
- table = 1;
- else if (strcmp(argv[i], "-reverse") == 0)
- reverse = 1;
- else if (argv[i][0] == '-')
- badopt = 1;
- else if (!pw_source_defined)
- /* non-option arguments, use as passwords */
- {
- pw_source_defined = 1;
- passwds = &argv[i];
- opt_done = 1;
- }
- else
- badopt = 1;
- }
-
- if (!usecrypt && !use1 && !useapr1) /* use default */
- usecrypt = 1;
- if (usecrypt + use1 + useapr1 > 1) /* conflict */
- badopt = 1;
-
- /* reject unsupported algorithms */
#ifdef OPENSSL_NO_DES
- if (usecrypt) badopt = 1;
-#endif
-#ifdef NO_MD5CRYPT_1
- if (use1 || useapr1) badopt = 1;
+ if (mode == passwd_crypt)
+ goto opthelp;
#endif
- if (badopt)
- {
- BIO_printf(bio_err, "Usage: passwd [options] [passwords]\n");
- BIO_printf(bio_err, "where options are\n");
-#ifndef OPENSSL_NO_DES
- BIO_printf(bio_err, "-crypt standard Unix password algorithm (default)\n");
+ if (infile != NULL && in_stdin) {
+ BIO_printf(bio_err, "%s: Can't combine -in and -stdin\n", prog);
+ goto end;
+ }
+
+ if (infile != NULL || in_stdin) {
+ /*
+ * If in_stdin is true, we know that infile is NULL, and that
+ * bio_open_default() will give us back an alias for stdin.
+ */
+ in = bio_open_default(infile, 'r', FORMAT_TEXT);
+ if (in == NULL)
+ goto end;
+ }
+
+ if (mode == passwd_crypt)
+ pw_maxlen = 8;
+
+ if (passwds == NULL) {
+ /* no passwords on the command line */
+
+ passwd_malloc_size = pw_maxlen + 2;
+ /* longer than necessary so that we can warn about truncation */
+ passwd = passwd_malloc =
+ app_malloc(passwd_malloc_size, "password buffer");
+ }
+
+ if ((in == NULL) && (passwds == NULL)) {
+ /*
+ * we use the following method to make sure what
+ * in the 'else' section is always compiled, to
+ * avoid rot of not-frequently-used code.
+ */
+ if (1) {
+#ifndef OPENSSL_NO_UI_CONSOLE
+ /* build a null-terminated list */
+ static char *passwds_static[2] = { NULL, NULL };
+
+ passwds = passwds_static;
+ if (in == NULL) {
+ if (EVP_read_pw_string
+ (passwd_malloc, passwd_malloc_size, "Password: ",
+ !(passed_salt || in_noverify)) != 0)
+ goto end;
+ }
+ passwds[0] = passwd_malloc;
+ } else {
#endif
-#ifndef NO_MD5CRYPT_1
- BIO_printf(bio_err, "-1 MD5-based password algorithm\n");
- BIO_printf(bio_err, "-apr1 MD5-based password algorithm, Apache variant\n");
+ BIO_printf(bio_err, "password required\n");
+ goto end;
+ }
+ }
+
+ if (in == NULL) {
+ assert(passwds != NULL);
+ assert(*passwds != NULL);
+
+ do { /* loop over list of passwords */
+ passwd = *passwds++;
+ if (!do_passwd(passed_salt, &salt, &salt_malloc, passwd, bio_out,
+ quiet, table, reverse, pw_maxlen, mode))
+ goto end;
+ } while (*passwds != NULL);
+ } else {
+ /* in != NULL */
+ int done;
+
+ assert(passwd != NULL);
+ do {
+ int r = BIO_gets(in, passwd, pw_maxlen + 1);
+ if (r > 0) {
+ char *c = (strchr(passwd, '\n'));
+ if (c != NULL) {
+ *c = 0; /* truncate at newline */
+ } else {
+ /* ignore rest of line */
+ char trash[BUFSIZ];
+ do
+ r = BIO_gets(in, trash, sizeof(trash));
+ while ((r > 0) && (!strchr(trash, '\n')));
+ }
+
+ if (!do_passwd
+ (passed_salt, &salt, &salt_malloc, passwd, bio_out, quiet,
+ table, reverse, pw_maxlen, mode))
+ goto end;
+ }
+ done = (r <= 0);
+ } while (!done);
+ }
+ ret = 0;
+
+ end:
+#if 0
+ ERR_print_errors(bio_err);
#endif
- BIO_printf(bio_err, "-salt string use provided salt\n");
- BIO_printf(bio_err, "-in file read passwords from file\n");
- BIO_printf(bio_err, "-stdin read passwords from stdin\n");
- BIO_printf(bio_err, "-noverify never verify when reading password from terminal\n");
- BIO_printf(bio_err, "-quiet no warnings\n");
- BIO_printf(bio_err, "-table format output as table\n");
- BIO_printf(bio_err, "-reverse switch table columns\n");
-
- goto err;
- }
-
- if ((infile != NULL) || in_stdin)
- {
- in = BIO_new(BIO_s_file());
- if (in == NULL)
- goto err;
- if (infile != NULL)
- {
- assert(in_stdin == 0);
- if (BIO_read_filename(in, infile) <= 0)
- goto err;
- }
- else
- {
- assert(in_stdin);
- BIO_set_fp(in, stdin, BIO_NOCLOSE);
- }
- }
-
- if (usecrypt)
- pw_maxlen = 8;
- else if (use1 || useapr1)
- pw_maxlen = 256; /* arbitrary limit, should be enough for most passwords */
-
- if (passwds == NULL)
- {
- /* no passwords on the command line */
-
- passwd_malloc_size = pw_maxlen + 2;
- /* longer than necessary so that we can warn about truncation */
- passwd = passwd_malloc = OPENSSL_malloc(passwd_malloc_size);
- if (passwd_malloc == NULL)
- goto err;
- }
-
- if ((in == NULL) && (passwds == NULL))
- {
- /* build a null-terminated list */
- static char *passwds_static[2] = {NULL, NULL};
-
- passwds = passwds_static;
- if (in == NULL)
- if (EVP_read_pw_string(passwd_malloc, passwd_malloc_size, "Password: ", !(passed_salt || in_noverify)) != 0)
- goto err;
- passwds[0] = passwd_malloc;
- }
-
- if (in == NULL)
- {
- assert(passwds != NULL);
- assert(*passwds != NULL);
-
- do /* loop over list of passwords */
- {
- passwd = *passwds++;
- if (!do_passwd(passed_salt, &salt, &salt_malloc, passwd, out,
- quiet, table, reverse, pw_maxlen, usecrypt, use1, useapr1))
- goto err;
- }
- while (*passwds != NULL);
- }
- else
- /* in != NULL */
- {
- int done;
-
- assert (passwd != NULL);
- do
- {
- int r = BIO_gets(in, passwd, pw_maxlen + 1);
- if (r > 0)
- {
- char *c = (strchr(passwd, '\n')) ;
- if (c != NULL)
- *c = 0; /* truncate at newline */
- else
- {
- /* ignore rest of line */
- char trash[BUFSIZ];
- do
- r = BIO_gets(in, trash, sizeof trash);
- while ((r > 0) && (!strchr(trash, '\n')));
- }
-
- if (!do_passwd(passed_salt, &salt, &salt_malloc, passwd, out,
- quiet, table, reverse, pw_maxlen, usecrypt, use1, useapr1))
- goto err;
- }
- done = (r <= 0);
- }
- while (!done);
- }
- ret = 0;
-
-err:
- ERR_print_errors(bio_err);
- if (salt_malloc)
- OPENSSL_free(salt_malloc);
- if (passwd_malloc)
- OPENSSL_free(passwd_malloc);
- if (in)
- BIO_free(in);
- if (out)
- BIO_free_all(out);
- apps_shutdown();
- EXIT(ret);
- }
-
-
-#ifndef NO_MD5CRYPT_1
-/* MD5-based password algorithm (should probably be available as a library
- * function; then the static buffer would not be acceptable).
- * For magic string "1", this should be compatible to the MD5-based BSD
- * password algorithm.
- * For 'magic' string "apr1", this is compatible to the MD5-based Apache
- * password algorithm.
- * (Apparently, the Apache password algorithm is identical except that the
- * 'magic' string was changed -- the laziest application of the NIH principle
- * I've ever encountered.)
+ OPENSSL_free(salt_malloc);
+ OPENSSL_free(passwd_malloc);
+ BIO_free(in);
+ return ret;
+}
+
+/*
+ * MD5-based password algorithm (should probably be available as a library
+ * function; then the static buffer would not be acceptable). For magic
+ * string "1", this should be compatible to the MD5-based BSD password
+ * algorithm. For 'magic' string "apr1", this is compatible to the MD5-based
+ * Apache password algorithm. (Apparently, the Apache password algorithm is
+ * identical except that the 'magic' string was changed -- the laziest
+ * application of the NIH principle I've ever encountered.)
*/
static char *md5crypt(const char *passwd, const char *magic, const char *salt)
- {
- static char out_buf[6 + 9 + 24 + 2]; /* "$apr1$..salt..$.......md5hash..........\0" */
- unsigned char buf[MD5_DIGEST_LENGTH];
- char *salt_out;
- int n, i;
- EVP_MD_CTX md,md2;
- size_t passwd_len, salt_len;
-
- passwd_len = strlen(passwd);
- out_buf[0] = '$';
- out_buf[1] = 0;
- assert(strlen(magic) <= 4); /* "1" or "apr1" */
- strncat(out_buf, magic, 4);
- strncat(out_buf, "$", 1);
- strncat(out_buf, salt, 8);
- assert(strlen(out_buf) <= 6 + 8); /* "$apr1$..salt.." */
- salt_out = out_buf + 2 + strlen(magic);
- salt_len = strlen(salt_out);
- assert(salt_len <= 8);
-
- EVP_MD_CTX_init(&md);
- EVP_DigestInit(&md,EVP_md5());
- EVP_DigestUpdate(&md, passwd, passwd_len);
- EVP_DigestUpdate(&md, "$", 1);
- EVP_DigestUpdate(&md, magic, strlen(magic));
- EVP_DigestUpdate(&md, "$", 1);
- EVP_DigestUpdate(&md, salt_out, salt_len);
-
- EVP_MD_CTX_init(&md2);
- EVP_DigestInit(&md2,EVP_md5());
- EVP_DigestUpdate(&md2, passwd, passwd_len);
- EVP_DigestUpdate(&md2, salt_out, salt_len);
- EVP_DigestUpdate(&md2, passwd, passwd_len);
- EVP_DigestFinal(&md2, buf, NULL);
-
- for (i = passwd_len; i > sizeof buf; i -= sizeof buf)
- EVP_DigestUpdate(&md, buf, sizeof buf);
- EVP_DigestUpdate(&md, buf, i);
-
- n = passwd_len;
- while (n)
- {
- EVP_DigestUpdate(&md, (n & 1) ? "\0" : passwd, 1);
- n >>= 1;
- }
- EVP_DigestFinal(&md, buf, NULL);
-
- for (i = 0; i < 1000; i++)
- {
- EVP_DigestInit(&md2,EVP_md5());
- EVP_DigestUpdate(&md2, (i & 1) ? (unsigned char *) passwd : buf,
- (i & 1) ? passwd_len : sizeof buf);
- if (i % 3)
- EVP_DigestUpdate(&md2, salt_out, salt_len);
- if (i % 7)
- EVP_DigestUpdate(&md2, passwd, passwd_len);
- EVP_DigestUpdate(&md2, (i & 1) ? buf : (unsigned char *) passwd,
- (i & 1) ? sizeof buf : passwd_len);
- EVP_DigestFinal(&md2, buf, NULL);
- }
- EVP_MD_CTX_cleanup(&md2);
-
- {
- /* transform buf into output string */
-
- unsigned char buf_perm[sizeof buf];
- int dest, source;
- char *output;
-
- /* silly output permutation */
- for (dest = 0, source = 0; dest < 14; dest++, source = (source + 6) % 17)
- buf_perm[dest] = buf[source];
- buf_perm[14] = buf[5];
- buf_perm[15] = buf[11];
-#ifndef PEDANTIC /* Unfortunately, this generates a "no effect" warning */
- assert(16 == sizeof buf_perm);
+{
+ /* "$apr1$..salt..$.......md5hash..........\0" */
+ static char out_buf[6 + 9 + 24 + 2];
+ unsigned char buf[MD5_DIGEST_LENGTH];
+ char ascii_magic[5]; /* "apr1" plus '\0' */
+ char ascii_salt[9]; /* Max 8 chars plus '\0' */
+ char *ascii_passwd = NULL;
+ char *salt_out;
+ int n;
+ unsigned int i;
+ EVP_MD_CTX *md = NULL, *md2 = NULL;
+ size_t passwd_len, salt_len, magic_len;
+
+ passwd_len = strlen(passwd);
+
+ out_buf[0] = 0;
+ magic_len = strlen(magic);
+ OPENSSL_strlcpy(ascii_magic, magic, sizeof(ascii_magic));
+#ifdef CHARSET_EBCDIC
+ if ((magic[0] & 0x80) != 0) /* High bit is 1 in EBCDIC alnums */
+ ebcdic2ascii(ascii_magic, ascii_magic, magic_len);
#endif
-
- output = salt_out + salt_len;
- assert(output == out_buf + strlen(out_buf));
-
- *output++ = '$';
-
- for (i = 0; i < 15; i += 3)
- {
- *output++ = cov_2char[buf_perm[i+2] & 0x3f];
- *output++ = cov_2char[((buf_perm[i+1] & 0xf) << 2) |
- (buf_perm[i+2] >> 6)];
- *output++ = cov_2char[((buf_perm[i] & 3) << 4) |
- (buf_perm[i+1] >> 4)];
- *output++ = cov_2char[buf_perm[i] >> 2];
- }
- assert(i == 15);
- *output++ = cov_2char[buf_perm[i] & 0x3f];
- *output++ = cov_2char[buf_perm[i] >> 6];
- *output = 0;
- assert(strlen(out_buf) < sizeof(out_buf));
- }
- EVP_MD_CTX_cleanup(&md);
-
- return out_buf;
- }
+
+ /* The salt gets truncated to 8 chars */
+ OPENSSL_strlcpy(ascii_salt, salt, sizeof(ascii_salt));
+ salt_len = strlen(ascii_salt);
+#ifdef CHARSET_EBCDIC
+ ebcdic2ascii(ascii_salt, ascii_salt, salt_len);
#endif
+#ifdef CHARSET_EBCDIC
+ ascii_passwd = OPENSSL_strdup(passwd);
+ if (ascii_passwd == NULL)
+ return NULL;
+ ebcdic2ascii(ascii_passwd, ascii_passwd, passwd_len);
+ passwd = ascii_passwd;
+#endif
-static int do_passwd(int passed_salt, char **salt_p, char **salt_malloc_p,
- char *passwd, BIO *out, int quiet, int table, int reverse,
- size_t pw_maxlen, int usecrypt, int use1, int useapr1)
- {
- char *hash = NULL;
+ if (magic_len > 0) {
+ OPENSSL_strlcat(out_buf, ascii_dollar, sizeof(out_buf));
+
+ if (magic_len > 4) /* assert it's "1" or "apr1" */
+ goto err;
+
+ OPENSSL_strlcat(out_buf, ascii_magic, sizeof(out_buf));
+ OPENSSL_strlcat(out_buf, ascii_dollar, sizeof(out_buf));
+ }
+
+ OPENSSL_strlcat(out_buf, ascii_salt, sizeof(out_buf));
+
+ if (strlen(out_buf) > 6 + 8) /* assert "$apr1$..salt.." */
+ goto err;
+
+ salt_out = out_buf;
+ if (magic_len > 0)
+ salt_out += 2 + magic_len;
+
+ if (salt_len > 8)
+ goto err;
+
+ md = EVP_MD_CTX_new();
+ if (md == NULL
+ || !EVP_DigestInit_ex(md, EVP_md5(), NULL)
+ || !EVP_DigestUpdate(md, passwd, passwd_len))
+ goto err;
+
+ if (magic_len > 0)
+ if (!EVP_DigestUpdate(md, ascii_dollar, 1)
+ || !EVP_DigestUpdate(md, ascii_magic, magic_len)
+ || !EVP_DigestUpdate(md, ascii_dollar, 1))
+ goto err;
+
+ if (!EVP_DigestUpdate(md, ascii_salt, salt_len))
+ goto err;
+
+ md2 = EVP_MD_CTX_new();
+ if (md2 == NULL
+ || !EVP_DigestInit_ex(md2, EVP_md5(), NULL)
+ || !EVP_DigestUpdate(md2, passwd, passwd_len)
+ || !EVP_DigestUpdate(md2, ascii_salt, salt_len)
+ || !EVP_DigestUpdate(md2, passwd, passwd_len)
+ || !EVP_DigestFinal_ex(md2, buf, NULL))
+ goto err;
+
+ for (i = passwd_len; i > sizeof(buf); i -= sizeof(buf)) {
+ if (!EVP_DigestUpdate(md, buf, sizeof(buf)))
+ goto err;
+ }
+ if (!EVP_DigestUpdate(md, buf, i))
+ goto err;
+
+ n = passwd_len;
+ while (n) {
+ if (!EVP_DigestUpdate(md, (n & 1) ? "\0" : passwd, 1))
+ goto err;
+ n >>= 1;
+ }
+ if (!EVP_DigestFinal_ex(md, buf, NULL))
+ return NULL;
+
+ for (i = 0; i < 1000; i++) {
+ if (!EVP_DigestInit_ex(md2, EVP_md5(), NULL))
+ goto err;
+ if (!EVP_DigestUpdate(md2,
+ (i & 1) ? (unsigned const char *)passwd : buf,
+ (i & 1) ? passwd_len : sizeof(buf)))
+ goto err;
+ if (i % 3) {
+ if (!EVP_DigestUpdate(md2, ascii_salt, salt_len))
+ goto err;
+ }
+ if (i % 7) {
+ if (!EVP_DigestUpdate(md2, passwd, passwd_len))
+ goto err;
+ }
+ if (!EVP_DigestUpdate(md2,
+ (i & 1) ? buf : (unsigned const char *)passwd,
+ (i & 1) ? sizeof(buf) : passwd_len))
+ goto err;
+ if (!EVP_DigestFinal_ex(md2, buf, NULL))
+ goto err;
+ }
+ EVP_MD_CTX_free(md2);
+ EVP_MD_CTX_free(md);
+ md2 = NULL;
+ md = NULL;
+
+ {
+ /* transform buf into output string */
+ unsigned char buf_perm[sizeof(buf)];
+ int dest, source;
+ char *output;
+
+ /* silly output permutation */
+ for (dest = 0, source = 0; dest < 14;
+ dest++, source = (source + 6) % 17)
+ buf_perm[dest] = buf[source];
+ buf_perm[14] = buf[5];
+ buf_perm[15] = buf[11];
+# ifndef PEDANTIC /* Unfortunately, this generates a "no
+ * effect" warning */
+ assert(16 == sizeof(buf_perm));
+# endif
+
+ output = salt_out + salt_len;
+ assert(output == out_buf + strlen(out_buf));
+
+ *output++ = ascii_dollar[0];
+
+ for (i = 0; i < 15; i += 3) {
+ *output++ = cov_2char[buf_perm[i + 2] & 0x3f];
+ *output++ = cov_2char[((buf_perm[i + 1] & 0xf) << 2) |
+ (buf_perm[i + 2] >> 6)];
+ *output++ = cov_2char[((buf_perm[i] & 3) << 4) |
+ (buf_perm[i + 1] >> 4)];
+ *output++ = cov_2char[buf_perm[i] >> 2];
+ }
+ assert(i == 15);
+ *output++ = cov_2char[buf_perm[i] & 0x3f];
+ *output++ = cov_2char[buf_perm[i] >> 6];
+ *output = 0;
+ assert(strlen(out_buf) < sizeof(out_buf));
+#ifdef CHARSET_EBCDIC
+ ascii2ebcdic(out_buf, out_buf, strlen(out_buf));
+#endif
+ }
- assert(salt_p != NULL);
- assert(salt_malloc_p != NULL);
+ return out_buf;
- /* first make sure we have a salt */
- if (!passed_salt)
- {
-#ifndef OPENSSL_NO_DES
- if (usecrypt)
- {
- if (*salt_malloc_p == NULL)
- {
- *salt_p = *salt_malloc_p = OPENSSL_malloc(3);
- if (*salt_malloc_p == NULL)
- goto err;
- }
- if (RAND_pseudo_bytes((unsigned char *)*salt_p, 2) < 0)
- goto err;
- (*salt_p)[0] = cov_2char[(*salt_p)[0] & 0x3f]; /* 6 bits */
- (*salt_p)[1] = cov_2char[(*salt_p)[1] & 0x3f]; /* 6 bits */
- (*salt_p)[2] = 0;
+ err:
+ OPENSSL_free(ascii_passwd);
+ EVP_MD_CTX_free(md2);
+ EVP_MD_CTX_free(md);
+ return NULL;
+}
+
+/*
+ * SHA based password algorithm, describe by Ulrich Drepper here:
+ * https://www.akkadia.org/drepper/SHA-crypt.txt
+ * (note that it's in the public domain)
+ */
+static char *shacrypt(const char *passwd, const char *magic, const char *salt)
+{
+ /* Prefix for optional rounds specification. */
+ static const char rounds_prefix[] = "rounds=";
+ /* Maximum salt string length. */
+# define SALT_LEN_MAX 16
+ /* Default number of rounds if not explicitly specified. */
+# define ROUNDS_DEFAULT 5000
+ /* Minimum number of rounds. */
+# define ROUNDS_MIN 1000
+ /* Maximum number of rounds. */
+# define ROUNDS_MAX 999999999
+
+ /* "$6$rounds=<N>$......salt......$...shahash(up to 86 chars)...\0" */
+ static char out_buf[3 + 17 + 17 + 86 + 1];
+ unsigned char buf[SHA512_DIGEST_LENGTH];
+ unsigned char temp_buf[SHA512_DIGEST_LENGTH];
+ size_t buf_size = 0;
+ char ascii_magic[2];
+ char ascii_salt[17]; /* Max 16 chars plus '\0' */
+ char *ascii_passwd = NULL;
+ size_t n;
+ EVP_MD_CTX *md = NULL, *md2 = NULL;
+ const EVP_MD *sha = NULL;
+ size_t passwd_len, salt_len, magic_len;
+ unsigned int rounds = 5000; /* Default */
+ char rounds_custom = 0;
+ char *p_bytes = NULL;
+ char *s_bytes = NULL;
+ char *cp = NULL;
+
+ passwd_len = strlen(passwd);
+ magic_len = strlen(magic);
+
+ /* assert it's "5" or "6" */
+ if (magic_len != 1)
+ return NULL;
+
+ switch (magic[0]) {
+ case '5':
+ sha = EVP_sha256();
+ buf_size = 32;
+ break;
+ case '6':
+ sha = EVP_sha512();
+ buf_size = 64;
+ break;
+ default:
+ return NULL;
+ }
+
+ if (strncmp(salt, rounds_prefix, sizeof(rounds_prefix) - 1) == 0) {
+ const char *num = salt + sizeof(rounds_prefix) - 1;
+ char *endp;
+ unsigned long int srounds = strtoul (num, &endp, 10);
+ if (*endp == '$') {
+ salt = endp + 1;
+ if (srounds > ROUNDS_MAX)
+ rounds = ROUNDS_MAX;
+ else if (srounds < ROUNDS_MIN)
+ rounds = ROUNDS_MIN;
+ else
+ rounds = (unsigned int)srounds;
+ rounds_custom = 1;
+ } else {
+ return NULL;
+ }
+ }
+
+ OPENSSL_strlcpy(ascii_magic, magic, sizeof(ascii_magic));
#ifdef CHARSET_EBCDIC
- ascii2ebcdic(*salt_p, *salt_p, 2); /* des_crypt will convert
- * back to ASCII */
+ if ((magic[0] & 0x80) != 0) /* High bit is 1 in EBCDIC alnums */
+ ebcdic2ascii(ascii_magic, ascii_magic, magic_len);
#endif
- }
-#endif /* !OPENSSL_NO_DES */
-
-#ifndef NO_MD5CRYPT_1
- if (use1 || useapr1)
- {
- int i;
-
- if (*salt_malloc_p == NULL)
- {
- *salt_p = *salt_malloc_p = OPENSSL_malloc(9);
- if (*salt_malloc_p == NULL)
- goto err;
- }
- if (RAND_pseudo_bytes((unsigned char *)*salt_p, 8) < 0)
- goto err;
-
- for (i = 0; i < 8; i++)
- (*salt_p)[i] = cov_2char[(*salt_p)[i] & 0x3f]; /* 6 bits */
- (*salt_p)[8] = 0;
- }
-#endif /* !NO_MD5CRYPT_1 */
- }
-
- assert(*salt_p != NULL);
-
- /* truncate password if necessary */
- if ((strlen(passwd) > pw_maxlen))
- {
- if (!quiet)
- BIO_printf(bio_err, "Warning: truncating password to %u characters\n", pw_maxlen);
- passwd[pw_maxlen] = 0;
- }
- assert(strlen(passwd) <= pw_maxlen);
-
- /* now compute password hash */
-#ifndef OPENSSL_NO_DES
- if (usecrypt)
- hash = des_crypt(passwd, *salt_p);
+
+ /* The salt gets truncated to 16 chars */
+ OPENSSL_strlcpy(ascii_salt, salt, sizeof(ascii_salt));
+ salt_len = strlen(ascii_salt);
+#ifdef CHARSET_EBCDIC
+ ebcdic2ascii(ascii_salt, ascii_salt, salt_len);
+#endif
+
+#ifdef CHARSET_EBCDIC
+ ascii_passwd = OPENSSL_strdup(passwd);
+ if (ascii_passwd == NULL)
+ return NULL;
+ ebcdic2ascii(ascii_passwd, ascii_passwd, passwd_len);
+ passwd = ascii_passwd;
+#endif
+
+ out_buf[0] = 0;
+ OPENSSL_strlcat(out_buf, ascii_dollar, sizeof(out_buf));
+ OPENSSL_strlcat(out_buf, ascii_magic, sizeof(out_buf));
+ OPENSSL_strlcat(out_buf, ascii_dollar, sizeof(out_buf));
+ if (rounds_custom) {
+ char tmp_buf[80]; /* "rounds=999999999" */
+ sprintf(tmp_buf, "rounds=%u", rounds);
+#ifdef CHARSET_EBCDIC
+ /* In case we're really on a ASCII based platform and just pretend */
+ if (tmp_buf[0] != 0x72) /* ASCII 'r' */
+ ebcdic2ascii(tmp_buf, tmp_buf, strlen(tmp_buf));
#endif
-#ifndef NO_MD5CRYPT_1
- if (use1 || useapr1)
- hash = md5crypt(passwd, (use1 ? "1" : "apr1"), *salt_p);
+ OPENSSL_strlcat(out_buf, tmp_buf, sizeof(out_buf));
+ OPENSSL_strlcat(out_buf, ascii_dollar, sizeof(out_buf));
+ }
+ OPENSSL_strlcat(out_buf, ascii_salt, sizeof(out_buf));
+
+ /* assert "$5$rounds=999999999$......salt......" */
+ if (strlen(out_buf) > 3 + 17 * rounds_custom + salt_len )
+ goto err;
+
+ md = EVP_MD_CTX_new();
+ if (md == NULL
+ || !EVP_DigestInit_ex(md, sha, NULL)
+ || !EVP_DigestUpdate(md, passwd, passwd_len)
+ || !EVP_DigestUpdate(md, ascii_salt, salt_len))
+ goto err;
+
+ md2 = EVP_MD_CTX_new();
+ if (md2 == NULL
+ || !EVP_DigestInit_ex(md2, sha, NULL)
+ || !EVP_DigestUpdate(md2, passwd, passwd_len)
+ || !EVP_DigestUpdate(md2, ascii_salt, salt_len)
+ || !EVP_DigestUpdate(md2, passwd, passwd_len)
+ || !EVP_DigestFinal_ex(md2, buf, NULL))
+ goto err;
+
+ for (n = passwd_len; n > buf_size; n -= buf_size) {
+ if (!EVP_DigestUpdate(md, buf, buf_size))
+ goto err;
+ }
+ if (!EVP_DigestUpdate(md, buf, n))
+ goto err;
+
+ n = passwd_len;
+ while (n) {
+ if (!EVP_DigestUpdate(md,
+ (n & 1) ? buf : (unsigned const char *)passwd,
+ (n & 1) ? buf_size : passwd_len))
+ goto err;
+ n >>= 1;
+ }
+ if (!EVP_DigestFinal_ex(md, buf, NULL))
+ return NULL;
+
+ /* P sequence */
+ if (!EVP_DigestInit_ex(md2, sha, NULL))
+ goto err;
+
+ for (n = passwd_len; n > 0; n--)
+ if (!EVP_DigestUpdate(md2, passwd, passwd_len))
+ goto err;
+
+ if (!EVP_DigestFinal_ex(md2, temp_buf, NULL))
+ return NULL;
+
+ if ((p_bytes = OPENSSL_zalloc(passwd_len)) == NULL)
+ goto err;
+ for (cp = p_bytes, n = passwd_len; n > buf_size; n -= buf_size, cp += buf_size)
+ memcpy(cp, temp_buf, buf_size);
+ memcpy(cp, temp_buf, n);
+
+ /* S sequence */
+ if (!EVP_DigestInit_ex(md2, sha, NULL))
+ goto err;
+
+ for (n = 16 + buf[0]; n > 0; n--)
+ if (!EVP_DigestUpdate(md2, ascii_salt, salt_len))
+ goto err;
+
+ if (!EVP_DigestFinal_ex(md2, temp_buf, NULL))
+ return NULL;
+
+ if ((s_bytes = OPENSSL_zalloc(salt_len)) == NULL)
+ goto err;
+ for (cp = s_bytes, n = salt_len; n > buf_size; n -= buf_size, cp += buf_size)
+ memcpy(cp, temp_buf, buf_size);
+ memcpy(cp, temp_buf, n);
+
+ for (n = 0; n < rounds; n++) {
+ if (!EVP_DigestInit_ex(md2, sha, NULL))
+ goto err;
+ if (!EVP_DigestUpdate(md2,
+ (n & 1) ? (unsigned const char *)p_bytes : buf,
+ (n & 1) ? passwd_len : buf_size))
+ goto err;
+ if (n % 3) {
+ if (!EVP_DigestUpdate(md2, s_bytes, salt_len))
+ goto err;
+ }
+ if (n % 7) {
+ if (!EVP_DigestUpdate(md2, p_bytes, passwd_len))
+ goto err;
+ }
+ if (!EVP_DigestUpdate(md2,
+ (n & 1) ? buf : (unsigned const char *)p_bytes,
+ (n & 1) ? buf_size : passwd_len))
+ goto err;
+ if (!EVP_DigestFinal_ex(md2, buf, NULL))
+ goto err;
+ }
+ EVP_MD_CTX_free(md2);
+ EVP_MD_CTX_free(md);
+ md2 = NULL;
+ md = NULL;
+ OPENSSL_free(p_bytes);
+ OPENSSL_free(s_bytes);
+ p_bytes = NULL;
+ s_bytes = NULL;
+
+ cp = out_buf + strlen(out_buf);
+ *cp++ = ascii_dollar[0];
+
+# define b64_from_24bit(B2, B1, B0, N) \
+ do { \
+ unsigned int w = ((B2) << 16) | ((B1) << 8) | (B0); \
+ int i = (N); \
+ while (i-- > 0) \
+ { \
+ *cp++ = cov_2char[w & 0x3f]; \
+ w >>= 6; \
+ } \
+ } while (0)
+
+ switch (magic[0]) {
+ case '5':
+ b64_from_24bit (buf[0], buf[10], buf[20], 4);
+ b64_from_24bit (buf[21], buf[1], buf[11], 4);
+ b64_from_24bit (buf[12], buf[22], buf[2], 4);
+ b64_from_24bit (buf[3], buf[13], buf[23], 4);
+ b64_from_24bit (buf[24], buf[4], buf[14], 4);
+ b64_from_24bit (buf[15], buf[25], buf[5], 4);
+ b64_from_24bit (buf[6], buf[16], buf[26], 4);
+ b64_from_24bit (buf[27], buf[7], buf[17], 4);
+ b64_from_24bit (buf[18], buf[28], buf[8], 4);
+ b64_from_24bit (buf[9], buf[19], buf[29], 4);
+ b64_from_24bit (0, buf[31], buf[30], 3);
+ break;
+ case '6':
+ b64_from_24bit (buf[0], buf[21], buf[42], 4);
+ b64_from_24bit (buf[22], buf[43], buf[1], 4);
+ b64_from_24bit (buf[44], buf[2], buf[23], 4);
+ b64_from_24bit (buf[3], buf[24], buf[45], 4);
+ b64_from_24bit (buf[25], buf[46], buf[4], 4);
+ b64_from_24bit (buf[47], buf[5], buf[26], 4);
+ b64_from_24bit (buf[6], buf[27], buf[48], 4);
+ b64_from_24bit (buf[28], buf[49], buf[7], 4);
+ b64_from_24bit (buf[50], buf[8], buf[29], 4);
+ b64_from_24bit (buf[9], buf[30], buf[51], 4);
+ b64_from_24bit (buf[31], buf[52], buf[10], 4);
+ b64_from_24bit (buf[53], buf[11], buf[32], 4);
+ b64_from_24bit (buf[12], buf[33], buf[54], 4);
+ b64_from_24bit (buf[34], buf[55], buf[13], 4);
+ b64_from_24bit (buf[56], buf[14], buf[35], 4);
+ b64_from_24bit (buf[15], buf[36], buf[57], 4);
+ b64_from_24bit (buf[37], buf[58], buf[16], 4);
+ b64_from_24bit (buf[59], buf[17], buf[38], 4);
+ b64_from_24bit (buf[18], buf[39], buf[60], 4);
+ b64_from_24bit (buf[40], buf[61], buf[19], 4);
+ b64_from_24bit (buf[62], buf[20], buf[41], 4);
+ b64_from_24bit (0, 0, buf[63], 2);
+ break;
+ default:
+ goto err;
+ }
+ *cp = '\0';
+#ifdef CHARSET_EBCDIC
+ ascii2ebcdic(out_buf, out_buf, strlen(out_buf));
#endif
- assert(hash != NULL);
-
- if (table && !reverse)
- BIO_printf(out, "%s\t%s\n", passwd, hash);
- else if (table && reverse)
- BIO_printf(out, "%s\t%s\n", hash, passwd);
- else
- BIO_printf(out, "%s\n", hash);
- return 1;
-
-err:
- return 0;
- }
-#else
-
-int MAIN(int argc, char **argv)
- {
- fputs("Program not available.\n", stderr)
- EXIT(1);
- }
+
+ return out_buf;
+
+ err:
+ EVP_MD_CTX_free(md2);
+ EVP_MD_CTX_free(md);
+ OPENSSL_free(p_bytes);
+ OPENSSL_free(s_bytes);
+ OPENSSL_free(ascii_passwd);
+ return NULL;
+}
+
+static int do_passwd(int passed_salt, char **salt_p, char **salt_malloc_p,
+ char *passwd, BIO *out, int quiet, int table,
+ int reverse, size_t pw_maxlen, passwd_modes mode)
+{
+ char *hash = NULL;
+
+ assert(salt_p != NULL);
+ assert(salt_malloc_p != NULL);
+
+ /* first make sure we have a salt */
+ if (!passed_salt) {
+ size_t saltlen = 0;
+ size_t i;
+
+#ifndef OPENSSL_NO_DES
+ if (mode == passwd_crypt)
+ saltlen = 2;
+#endif /* !OPENSSL_NO_DES */
+
+ if (mode == passwd_md5 || mode == passwd_apr1 || mode == passwd_aixmd5)
+ saltlen = 8;
+
+ if (mode == passwd_sha256 || mode == passwd_sha512)
+ saltlen = 16;
+
+ assert(saltlen != 0);
+
+ if (*salt_malloc_p == NULL)
+ *salt_p = *salt_malloc_p = app_malloc(saltlen + 1, "salt buffer");
+ if (RAND_bytes((unsigned char *)*salt_p, saltlen) <= 0)
+ goto end;
+
+ for (i = 0; i < saltlen; i++)
+ (*salt_p)[i] = cov_2char[(*salt_p)[i] & 0x3f]; /* 6 bits */
+ (*salt_p)[i] = 0;
+# ifdef CHARSET_EBCDIC
+ /* The password encryption funtion will convert back to ASCII */
+ ascii2ebcdic(*salt_p, *salt_p, saltlen);
+# endif
+ }
+
+ assert(*salt_p != NULL);
+
+ /* truncate password if necessary */
+ if ((strlen(passwd) > pw_maxlen)) {
+ if (!quiet)
+ /*
+ * XXX: really we should know how to print a size_t, not cast it
+ */
+ BIO_printf(bio_err,
+ "Warning: truncating password to %u characters\n",
+ (unsigned)pw_maxlen);
+ passwd[pw_maxlen] = 0;
+ }
+ assert(strlen(passwd) <= pw_maxlen);
+
+ /* now compute password hash */
+#ifndef OPENSSL_NO_DES
+ if (mode == passwd_crypt)
+ hash = DES_crypt(passwd, *salt_p);
#endif
+ if (mode == passwd_md5 || mode == passwd_apr1)
+ hash = md5crypt(passwd, (mode == passwd_md5 ? "1" : "apr1"), *salt_p);
+ if (mode == passwd_aixmd5)
+ hash = md5crypt(passwd, "", *salt_p);
+ if (mode == passwd_sha256 || mode == passwd_sha512)
+ hash = shacrypt(passwd, (mode == passwd_sha256 ? "5" : "6"), *salt_p);
+ assert(hash != NULL);
+
+ if (table && !reverse)
+ BIO_printf(out, "%s\t%s\n", passwd, hash);
+ else if (table && reverse)
+ BIO_printf(out, "%s\t%s\n", hash, passwd);
+ else
+ BIO_printf(out, "%s\n", hash);
+ return 1;
+
+ end:
+ return 0;
+}
projects / openssl.git / blobdiff