X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=apps%2Fpasswd.c;h=aa516c874e656fca0f3ed4df803417be51cea1ce;hp=f34ef9f5343655a7e08451162267c4df79770922;hb=17209be89b4d5aad94b91cfe0d9d24d5243a4a2f;hpb=296f54ee211edbf8d21479091b4c20a9ee7698ad diff --git a/apps/passwd.c b/apps/passwd.c index f34ef9f534..aa516c874e 100644 --- a/apps/passwd.c +++ b/apps/passwd.c @@ -1,73 +1,26 @@ -/* ==================================================================== - * Copyright (c) 2000-2015 The OpenSSL Project. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * 3. All advertising materials mentioning features or use of this - * software must display the following acknowledgment: - * "This product includes software developed by the OpenSSL Project - * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" - * - * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to - * endorse or promote products derived from this software without - * prior written permission. For written permission, please contact - * licensing@OpenSSL.org. - * - * 5. Products derived from this software may not be called "OpenSSL" - * nor may "OpenSSL" appear in their names without prior written - * permission of the OpenSSL Project. - * - * 6. Redistributions of any form whatsoever must retain the following - * acknowledgment: - * "This product includes software developed by the OpenSSL Project - * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" +/* + * Copyright 2000-2018 The OpenSSL Project Authors. All Rights Reserved. * - * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY - * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR - * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; - * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED - * OF THE POSSIBILITY OF SUCH DAMAGE. - * ==================================================================== + * 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 */ -#if defined OPENSSL_NO_MD5 || defined CHARSET_EBCDIC -# define NO_MD5CRYPT_1 -#endif - -#if !defined(OPENSSL_NO_DES) || !defined(NO_MD5CRYPT_1) - -# include -# include +#include -# include "apps.h" +#include "apps.h" +#include "progs.h" -# include -# include -# include -# include -# ifndef OPENSSL_NO_DES -# include -# endif -# ifndef NO_MD5CRYPT_1 -# include -# endif +#include +#include +#include +#include +#ifndef OPENSSL_NO_DES +# include +#endif +#include +#include static unsigned const char cov_2char[64] = { /* from crypto/des/fcrypt.c */ @@ -81,35 +34,49 @@ static unsigned const char cov_2char[64] = { 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A }; +static const char ascii_dollar[] = { 0x24, 0x00 }; + +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); + 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_CRYPT, OPT_SALT, OPT_STDIN + OPT_1, OPT_5, OPT_6, OPT_CRYPT, OPT_AIXMD5, OPT_SALT, OPT_STDIN, + OPT_R_ENUM } OPTION_CHOICE; -OPTIONS passwd_options[] = { +const OPTIONS passwd_options[] = { {"help", OPT_HELP, '-', "Display this summary"}, - {"in", OPT_IN, '<', "Pead passwords from file"}, + {"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"}, -# ifndef NO_MD5CRYPT_1 + {"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"}, -# endif -# ifndef OPENSSL_NO_DES + {"aixmd5", OPT_AIXMD5, '-', "AIX MD5-based password algorithm"}, +#ifndef OPENSSL_NO_DES {"crypt", OPT_CRYPT, '-', "Standard Unix password algorithm (default)"}, -# endif - {"salt", OPT_SALT, 's', "Use provided salt"}, - {"stdin", OPT_STDIN, '-', "Read passwords from stdin"}, +#endif + OPT_R_OPTIONS, {NULL} }; @@ -119,10 +86,16 @@ int passwd_main(int argc, char **argv) char *infile = NULL, *salt = NULL, *passwd = NULL, **passwds = NULL; char *salt_malloc = NULL, *passwd_malloc = NULL, *prog; OPTION_CHOICE o; - int in_stdin = 0, in_noverify = 0, pw_source_defined = 0; + 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, usecrypt = 0, use1 = 0, useapr1 = 0; - size_t passwd_malloc_size = 0, pw_maxlen = 256; + 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) { @@ -143,7 +116,9 @@ int passwd_main(int argc, char **argv) pw_source_defined = 1; break; case OPT_NOVERIFY: +#ifndef OPENSSL_NO_UI_CONSOLE in_noverify = 1; +#endif break; case OPT_QUIET: quiet = 1; @@ -155,13 +130,36 @@ int passwd_main(int argc, char **argv) reverse = 1; break; case OPT_1: - use1 = 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: - useapr1 = 1; + 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: - usecrypt = 1; +#ifndef OPENSSL_NO_DES + if (mode != passwd_unset) + goto opthelp; + mode = passwd_crypt; +#endif break; case OPT_SALT: passed_salt = 1; @@ -171,54 +169,51 @@ int passwd_main(int argc, char **argv) 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) { + if (*argv != NULL) { if (pw_source_defined) goto opthelp; pw_source_defined = 1; passwds = argv; } - if (!usecrypt && !use1 && !useapr1) { + if (mode == passwd_unset) { /* use default */ - usecrypt = 1; - } - if (usecrypt + use1 + useapr1 > 1) { - /* conflict */ - goto opthelp; + mode = passwd_crypt; } -# ifdef OPENSSL_NO_DES - if (usecrypt) +#ifdef OPENSSL_NO_DES + if (mode == passwd_crypt) goto opthelp; -# endif -# ifdef NO_MD5CRYPT_1 - if (use1 || useapr1) - goto opthelp; -# endif - - if (!app_load_modules(NULL)) - goto end; +#endif - if (infile && in_stdin) { + if (infile != NULL && in_stdin) { BIO_printf(bio_err, "%s: Can't combine -in and -stdin\n", prog); goto end; } - in = bio_open_default(infile, "r"); - if (in == NULL) - 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 (usecrypt) + if (mode == passwd_crypt) 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 */ @@ -230,16 +225,29 @@ int passwd_main(int argc, char **argv) } 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 end; - passwds[0] = passwd_malloc; + /* + * 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 + BIO_printf(bio_err, "password required\n"); + goto end; + } } if (in == NULL) { @@ -249,14 +257,11 @@ int passwd_main(int argc, char **argv) do { /* loop over list of passwords */ passwd = *passwds++; if (!do_passwd(passed_salt, &salt, &salt_malloc, passwd, bio_out, - quiet, table, reverse, pw_maxlen, usecrypt, use1, - useapr1)) + quiet, table, reverse, pw_maxlen, mode)) goto end; - } - while (*passwds != NULL); - } else + } while (*passwds != NULL); + } else { /* in != NULL */ - { int done; assert(passwd != NULL); @@ -264,36 +269,36 @@ int passwd_main(int argc, char **argv) int r = BIO_gets(in, passwd, pw_maxlen + 1); if (r > 0) { char *c = (strchr(passwd, '\n')); - if (c != NULL) + if (c != NULL) { *c = 0; /* truncate at newline */ - else { + } else { /* ignore rest of line */ char trash[BUFSIZ]; do - r = BIO_gets(in, trash, sizeof trash); + 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, usecrypt, use1, useapr1)) + table, reverse, pw_maxlen, mode)) goto end; } done = (r <= 0); - } - while (!done); + } while (!done); } ret = 0; end: +#if 0 ERR_print_errors(bio_err); +#endif OPENSSL_free(salt_malloc); OPENSSL_free(passwd_malloc); BIO_free(in); - return (ret); + return 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 @@ -308,68 +313,132 @@ static char *md5crypt(const char *passwd, const char *magic, const char *salt) /* "$apr1$..salt..$.......md5hash..........\0" */ static char out_buf[6 + 9 + 24 + 2]; unsigned char buf[MD5_DIGEST_LENGTH]; + char ascii_magic[5]; /* "apr1" plus '\0' */ + char ascii_salt[9]; /* Max 8 chars plus '\0' */ + char *ascii_passwd = NULL; char *salt_out; int n; unsigned int i; - EVP_MD_CTX md, md2; - size_t passwd_len, salt_len; + EVP_MD_CTX *md = NULL, *md2 = NULL; + size_t passwd_len, salt_len, magic_len; passwd_len = strlen(passwd); - out_buf[0] = '$'; - 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$..salt.." */ - salt_out = out_buf + 2 + strlen(magic); - salt_len = strlen(salt_out); - assert(salt_len <= 8); - - EVP_MD_CTX_init(&md); - EVP_DigestInit_ex(&md, EVP_md5(), NULL); - EVP_DigestUpdate(&md, passwd, passwd_len); - EVP_DigestUpdate(&md, "$", 1); - EVP_DigestUpdate(&md, magic, strlen(magic)); - EVP_DigestUpdate(&md, "$", 1); - EVP_DigestUpdate(&md, salt_out, salt_len); - - EVP_MD_CTX_init(&md2); - EVP_DigestInit_ex(&md2, EVP_md5(), NULL); - EVP_DigestUpdate(&md2, passwd, passwd_len); - EVP_DigestUpdate(&md2, salt_out, salt_len); - EVP_DigestUpdate(&md2, passwd, passwd_len); - EVP_DigestFinal_ex(&md2, buf, NULL); - - for (i = passwd_len; i > sizeof buf; i -= sizeof buf) - EVP_DigestUpdate(&md, buf, sizeof buf); - EVP_DigestUpdate(&md, buf, i); + + out_buf[0] = 0; + magic_len = strlen(magic); + OPENSSL_strlcpy(ascii_magic, magic, sizeof(ascii_magic)); +#ifdef CHARSET_EBCDIC + if ((magic[0] & 0x80) != 0) /* High bit is 1 in EBCDIC alnums */ + ebcdic2ascii(ascii_magic, ascii_magic, magic_len); +#endif + + /* The salt gets truncated to 8 chars */ + OPENSSL_strlcpy(ascii_salt, salt, sizeof(ascii_salt)); + salt_len = strlen(ascii_salt); +#ifdef CHARSET_EBCDIC + ebcdic2ascii(ascii_salt, ascii_salt, salt_len); +#endif + +#ifdef CHARSET_EBCDIC + ascii_passwd = OPENSSL_strdup(passwd); + if (ascii_passwd == NULL) + return NULL; + ebcdic2ascii(ascii_passwd, ascii_passwd, passwd_len); + passwd = ascii_passwd; +#endif + + if (magic_len > 0) { + OPENSSL_strlcat(out_buf, ascii_dollar, sizeof(out_buf)); + + if (magic_len > 4) /* assert it's "1" or "apr1" */ + goto err; + + OPENSSL_strlcat(out_buf, ascii_magic, sizeof(out_buf)); + OPENSSL_strlcat(out_buf, ascii_dollar, sizeof(out_buf)); + } + + OPENSSL_strlcat(out_buf, ascii_salt, sizeof(out_buf)); + + if (strlen(out_buf) > 6 + 8) /* assert "$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) { - EVP_DigestUpdate(&md, (n & 1) ? "\0" : passwd, 1); + if (!EVP_DigestUpdate(md, (n & 1) ? "\0" : passwd, 1)) + goto err; n >>= 1; } - EVP_DigestFinal_ex(&md, buf, NULL); + if (!EVP_DigestFinal_ex(md, buf, NULL)) + return NULL; for (i = 0; i < 1000; i++) { - EVP_DigestInit_ex(&md2, EVP_md5(), NULL); - EVP_DigestUpdate(&md2, (i & 1) ? (unsigned const 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 const char *)passwd, - (i & 1) ? sizeof buf : passwd_len); - EVP_DigestFinal_ex(&md2, buf, NULL); + 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_cleanup(&md2); + 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]; + unsigned char buf_perm[sizeof(buf)]; int dest, source; char *output; @@ -379,15 +448,15 @@ static char *md5crypt(const char *passwd, const char *magic, const char *salt) buf_perm[dest] = buf[source]; buf_perm[14] = buf[5]; buf_perm[15] = buf[11]; -# ifndef PEDANTIC /* Unfortunately, this generates a "no +# ifndef PEDANTIC /* Unfortunately, this generates a "no * effect" warning */ - assert(16 == sizeof buf_perm); -# endif + assert(16 == sizeof(buf_perm)); +# endif output = salt_out + salt_len; assert(output == out_buf + strlen(out_buf)); - *output++ = '$'; + *output++ = ascii_dollar[0]; for (i = 0; i < 15; i += 3) { *output++ = cov_2char[buf_perm[i + 2] & 0x3f]; @@ -402,17 +471,309 @@ static char *md5crypt(const char *passwd, const char *magic, const char *salt) *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 } - EVP_MD_CTX_cleanup(&md); return out_buf; + + 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=$......salt......$...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 + if ((magic[0] & 0x80) != 0) /* High bit is 1 in EBCDIC alnums */ + ebcdic2ascii(ascii_magic, ascii_magic, magic_len); +#endif + + /* 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 + 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 + + 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; } -# 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) + int reverse, size_t pw_maxlen, passwd_modes mode) { char *hash = NULL; @@ -421,38 +782,34 @@ static int do_passwd(int passed_salt, char **salt_p, char **salt_malloc_p, /* 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 = app_malloc(3, "salt buffer"); - } - if (RAND_bytes((unsigned char *)*salt_p, 2) <= 0) - goto end; - (*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; -# ifdef CHARSET_EBCDIC - ascii2ebcdic(*salt_p, *salt_p, 2); /* des_crypt will convert back - * to ASCII */ -# endif - } -# endif /* !OPENSSL_NO_DES */ + size_t saltlen = 0; + size_t i; -# ifndef NO_MD5CRYPT_1 - if (use1 || useapr1) { - int i; +#ifndef OPENSSL_NO_DES + if (mode == passwd_crypt) + saltlen = 2; +#endif /* !OPENSSL_NO_DES */ - if (*salt_malloc_p == NULL) { - *salt_p = *salt_malloc_p = app_malloc(9, "salt buffer"); - } - if (RAND_bytes((unsigned char *)*salt_p, 8) <= 0) - goto end; + if (mode == passwd_md5 || mode == passwd_apr1 || mode == passwd_aixmd5) + saltlen = 8; - 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 */ + 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); @@ -471,14 +828,16 @@ static int do_passwd(int passed_salt, char **salt_p, char **salt_malloc_p, assert(strlen(passwd) <= pw_maxlen); /* now compute password hash */ -# ifndef OPENSSL_NO_DES - if (usecrypt) +#ifndef OPENSSL_NO_DES + if (mode == passwd_crypt) hash = DES_crypt(passwd, *salt_p); -# endif -# ifndef NO_MD5CRYPT_1 - if (use1 || useapr1) - hash = md5crypt(passwd, (use1 ? "1" : "apr1"), *salt_p); -# endif +#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) @@ -487,16 +846,8 @@ static int do_passwd(int passed_salt, char **salt_p, char **salt_malloc_p, BIO_printf(out, "%s\t%s\n", hash, passwd); else BIO_printf(out, "%s\n", hash); - return 0; - - end: return 1; -} -#else -int passwd_main(int argc, char **argv) -{ - fputs("Program not available.\n", stderr) - return (1); + end: + return 0; } -#endif