/*
- * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 1995-2018 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
#include <string.h>
#include <limits.h>
#include "apps.h"
+#include "progs.h"
#include <openssl/bio.h>
#include <openssl/err.h>
#include <openssl/evp.h>
#define SIZE (512)
#define BSIZE (8*1024)
-static int set_hex(char *in, unsigned char *out, int size);
+static int set_hex(const char *in, unsigned char *out, int size);
static void show_ciphers(const OBJ_NAME *name, void *bio_);
+struct doall_enc_ciphers {
+ BIO *bio;
+ int n;
+};
+
typedef enum OPTION_choice {
OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
OPT_LIST,
OPT_E, OPT_IN, OPT_OUT, OPT_PASS, OPT_ENGINE, OPT_D, OPT_P, OPT_V,
OPT_NOPAD, OPT_SALT, OPT_NOSALT, OPT_DEBUG, OPT_UPPER_P, OPT_UPPER_A,
OPT_A, OPT_Z, OPT_BUFSIZE, OPT_K, OPT_KFILE, OPT_UPPER_K, OPT_NONE,
- OPT_UPPER_S, OPT_IV, OPT_MD, OPT_CIPHER
+ OPT_UPPER_S, OPT_IV, OPT_MD, OPT_ITER, OPT_PBKDF2, OPT_CIPHER,
+ OPT_R_ENUM
} OPTION_CHOICE;
const OPTIONS enc_options[] = {
{"S", OPT_UPPER_S, 's', "Salt, in hex"},
{"iv", OPT_IV, 's', "IV in hex"},
{"md", OPT_MD, 's', "Use specified digest to create a key from the passphrase"},
+ {"iter", OPT_ITER, 'p', "Specify the iteration count and force use of PBKDF2"},
+ {"pbkdf2", OPT_PBKDF2, '-', "Use password-based key derivation function 2"},
{"none", OPT_NONE, '-', "Don't encrypt"},
{"", OPT_CIPHER, '-', "Any supported cipher"},
+ OPT_R_OPTIONS,
#ifdef ZLIB
{"z", OPT_Z, '-', "Use zlib as the 'encryption'"},
#endif
char *hkey = NULL, *hiv = NULL, *hsalt = NULL, *p;
char *infile = NULL, *outfile = NULL, *prog;
char *str = NULL, *passarg = NULL, *pass = NULL, *strbuf = NULL;
- char mbuf[sizeof magic - 1];
+ char mbuf[sizeof(magic) - 1];
OPTION_CHOICE o;
int bsize = BSIZE, verbose = 0, debug = 0, olb64 = 0, nosalt = 0;
int enc = 1, printkey = 0, i, k;
int ret = 1, inl, nopad = 0;
unsigned char key[EVP_MAX_KEY_LENGTH], iv[EVP_MAX_IV_LENGTH];
unsigned char *buff = NULL, salt[PKCS5_SALT_LEN];
+ int pbkdf2 = 0;
+ int iter = 0;
long n;
+ struct doall_enc_ciphers dec;
#ifdef ZLIB
int do_zlib = 0;
BIO *bzl = NULL;
/* first check the program name */
prog = opt_progname(argv[0]);
- if (strcmp(prog, "base64") == 0)
+ if (strcmp(prog, "base64") == 0) {
base64 = 1;
#ifdef ZLIB
- else if (strcmp(prog, "zlib") == 0)
+ } else if (strcmp(prog, "zlib") == 0) {
do_zlib = 1;
#endif
- else {
+ } else {
cipher = EVP_get_cipherbyname(prog);
if (cipher == NULL && strcmp(prog, "enc") != 0) {
BIO_printf(bio_err, "%s is not a known cipher\n", prog);
ret = 0;
goto end;
case OPT_LIST:
- BIO_printf(bio_err, "Supported ciphers:\n");
+ BIO_printf(bio_out, "Supported ciphers:\n");
+ dec.bio = bio_out;
+ dec.n = 0;
OBJ_NAME_do_all_sorted(OBJ_NAME_TYPE_CIPHER_METH,
- show_ciphers, bio_err);
- BIO_printf(bio_err, "\n");
+ show_ciphers, &dec);
+ BIO_printf(bio_out, "\n");
+ ret = 0;
goto end;
case OPT_E:
enc = 1;
in = bio_open_default(opt_arg(), 'r', FORMAT_TEXT);
if (in == NULL)
goto opthelp;
- i = BIO_gets(in, buf, sizeof buf);
+ i = BIO_gets(in, buf, sizeof(buf));
BIO_free(in);
in = NULL;
if (i <= 0) {
goto opthelp;
cipher = c;
break;
+ case OPT_ITER:
+ if (!opt_int(opt_arg(), &iter))
+ goto opthelp;
+ pbkdf2 = 1;
+ break;
+ case OPT_PBKDF2:
+ pbkdf2 = 1;
+ if (iter == 0) /* do not overwrite a chosen value */
+ iter = 10000;
+ break;
case OPT_NONE:
cipher = NULL;
break;
+ case OPT_R_CASES:
+ if (!opt_rand(o))
+ goto end;
+ break;
}
}
+ if (opt_num_rest() != 0) {
+ BIO_printf(bio_err, "Extra arguments given.\n");
+ goto opthelp;
+ }
if (cipher && EVP_CIPHER_flags(cipher) & EVP_CIPH_FLAG_AEAD_CIPHER) {
BIO_printf(bio_err, "%s: AEAD ciphers not supported\n", prog);
if (dgst == NULL)
dgst = EVP_sha256();
+ if (iter == 0)
+ iter = 1;
+
/* It must be large enough for a base64 encoded line */
if (base64 && bsize < 80)
bsize = 80;
buff = app_malloc(EVP_ENCODE_LENGTH(bsize), "evp buffer");
if (infile == NULL) {
- unbuffer(stdin);
in = dup_bio_in(informat);
- } else
+ } else {
in = bio_open_default(infile, 'r', informat);
+ }
if (in == NULL)
goto end;
- if (!str && passarg) {
+ if (str == NULL && passarg != NULL) {
if (!app_passwd(passarg, NULL, &pass, NULL)) {
BIO_printf(bio_err, "Error getting password\n");
goto end;
if ((str == NULL) && (cipher != NULL) && (hkey == NULL)) {
if (1) {
-#ifndef OPENSSL_NO_UI
+#ifndef OPENSSL_NO_UI_CONSOLE
for (;;) {
char prompt[200];
- BIO_snprintf(prompt, sizeof prompt, "enter %s %s password:",
- OBJ_nid2ln(EVP_CIPHER_nid(cipher)),
- (enc) ? "encryption" : "decryption");
+ BIO_snprintf(prompt, sizeof(prompt), "enter %s %s password:",
+ OBJ_nid2ln(EVP_CIPHER_nid(cipher)),
+ (enc) ? "encryption" : "decryption");
strbuf[0] = '\0';
i = EVP_read_pw_string((char *)strbuf, SIZE, prompt, enc);
if (i == 0) {
unsigned char *sptr;
size_t str_len = strlen(str);
- if (nosalt)
+ if (nosalt) {
sptr = NULL;
- else {
+ } else {
if (enc) {
if (hsalt) {
- if (!set_hex(hsalt, salt, sizeof salt)) {
+ if (!set_hex(hsalt, salt, sizeof(salt))) {
BIO_printf(bio_err, "invalid hex salt value\n");
goto end;
}
- } else if (RAND_bytes(salt, sizeof salt) <= 0)
+ } else if (RAND_bytes(salt, sizeof(salt)) <= 0) {
goto end;
+ }
/*
* If -P option then don't bother writing
*/
if ((printkey != 2)
&& (BIO_write(wbio, magic,
- sizeof magic - 1) != sizeof magic - 1
+ sizeof(magic) - 1) != sizeof(magic) - 1
|| BIO_write(wbio,
(char *)salt,
- sizeof salt) != sizeof salt)) {
+ sizeof(salt)) != sizeof(salt))) {
BIO_printf(bio_err, "error writing output file\n");
goto end;
}
- } else if (BIO_read(rbio, mbuf, sizeof mbuf) != sizeof mbuf
+ } else if (BIO_read(rbio, mbuf, sizeof(mbuf)) != sizeof(mbuf)
|| BIO_read(rbio,
(unsigned char *)salt,
- sizeof salt) != sizeof salt) {
+ sizeof(salt)) != sizeof(salt)) {
BIO_printf(bio_err, "error reading input file\n");
goto end;
- } else if (memcmp(mbuf, magic, sizeof magic - 1)) {
+ } else if (memcmp(mbuf, magic, sizeof(magic) - 1)) {
BIO_printf(bio_err, "bad magic number\n");
goto end;
}
-
sptr = salt;
}
- if (!EVP_BytesToKey(cipher, dgst, sptr,
- (unsigned char *)str,
- str_len, 1, key, iv)) {
- BIO_printf(bio_err, "EVP_BytesToKey failed\n");
- goto end;
+ if (pbkdf2 == 1) {
+ /*
+ * derive key and default iv
+ * concatenated into a temporary buffer
+ */
+ unsigned char tmpkeyiv[EVP_MAX_KEY_LENGTH + EVP_MAX_IV_LENGTH];
+ int iklen = EVP_CIPHER_key_length(cipher);
+ int ivlen = EVP_CIPHER_iv_length(cipher);
+ /* not needed if HASH_UPDATE() is fixed : */
+ int islen = (sptr != NULL ? sizeof(salt) : 0);
+ if (!PKCS5_PBKDF2_HMAC(str, str_len, sptr, islen,
+ iter, dgst, iklen+ivlen, tmpkeyiv)) {
+ BIO_printf(bio_err, "PKCS5_PBKDF2_HMAC failed\n");
+ goto end;
+ }
+ /* split and move data back to global buffer */
+ memcpy(key, tmpkeyiv, iklen);
+ memcpy(iv, tmpkeyiv+iklen, ivlen);
+ } else {
+ BIO_printf(bio_err, "*** WARNING : "
+ "deprecated key derivation used.\n"
+ "Using -iter or -pbkdf2 would be better.\n");
+ if (!EVP_BytesToKey(cipher, dgst, sptr,
+ (unsigned char *)str, str_len,
+ 1, key, iv)) {
+ BIO_printf(bio_err, "EVP_BytesToKey failed\n");
+ goto end;
+ }
}
/*
* zero the complete buffer or the string passed from the command
- * line bug picked up by Larry J. Hughes Jr. <hughes@indiana.edu>
+ * line.
*/
if (str == strbuf)
OPENSSL_cleanse(str, SIZE);
int siz = EVP_CIPHER_iv_length(cipher);
if (siz == 0) {
BIO_printf(bio_err, "warning: iv not use by this cipher\n");
- } else if (!set_hex(hiv, iv, sizeof iv)) {
+ } else if (!set_hex(hiv, iv, siz)) {
BIO_printf(bio_err, "invalid hex iv value\n");
goto end;
}
if ((hiv == NULL) && (str == NULL)
&& EVP_CIPHER_iv_length(cipher) != 0) {
/*
- * No IV was explicitly set and no IV was generated during
- * EVP_BytesToKey. Hence the IV is undefined, making correct
- * decryption impossible.
+ * No IV was explicitly set and no IV was generated.
+ * Hence the IV is undefined, making correct decryption impossible.
*/
BIO_printf(bio_err, "iv undefined\n");
goto end;
}
- if ((hkey != NULL) && !set_hex(hkey, key, EVP_CIPHER_key_length(cipher))) {
- BIO_printf(bio_err, "invalid hex key value\n");
- goto end;
+ if (hkey != NULL) {
+ if (!set_hex(hkey, key, EVP_CIPHER_key_length(cipher))) {
+ BIO_printf(bio_err, "invalid hex key value\n");
+ goto end;
+ }
+ /* wiping secret data as we no longer need it */
+ OPENSSL_cleanse(hkey, strlen(hkey));
}
if ((benc = BIO_new(BIO_f_cipher())) == NULL)
ret = 0;
if (verbose) {
- BIO_printf(bio_err, "bytes read :%8"PRIu64"\n", BIO_number_read(in));
- BIO_printf(bio_err, "bytes written:%8"PRIu64"\n", BIO_number_written(out));
+ BIO_printf(bio_err, "bytes read : %8ju\n", BIO_number_read(in));
+ BIO_printf(bio_err, "bytes written: %8ju\n", BIO_number_written(out));
}
end:
ERR_print_errors(bio_err);
#endif
release_engine(e);
OPENSSL_free(pass);
- return (ret);
+ return ret;
}
-static void show_ciphers(const OBJ_NAME *name, void *bio_)
+static void show_ciphers(const OBJ_NAME *name, void *arg)
{
- BIO *bio = bio_;
- static int n;
+ struct doall_enc_ciphers *dec = (struct doall_enc_ciphers *)arg;
+ const EVP_CIPHER *cipher;
if (!islower((unsigned char)*name->name))
return;
- BIO_printf(bio, "-%-25s", name->name);
- if (++n == 3) {
- BIO_printf(bio, "\n");
- n = 0;
+ /* Filter out ciphers that we cannot use */
+ cipher = EVP_get_cipherbyname(name->name);
+ if (cipher == NULL ||
+ (EVP_CIPHER_flags(cipher) & EVP_CIPH_FLAG_AEAD_CIPHER) != 0 ||
+ EVP_CIPHER_mode(cipher) == EVP_CIPH_XTS_MODE)
+ return;
+
+ BIO_printf(dec->bio, "-%-25s", name->name);
+ if (++dec->n == 3) {
+ BIO_printf(dec->bio, "\n");
+ dec->n = 0;
} else
- BIO_printf(bio, " ");
+ BIO_printf(dec->bio, " ");
}
-static int set_hex(char *in, unsigned char *out, int size)
+static int set_hex(const char *in, unsigned char *out, int size)
{
int i, n;
unsigned char j;
+ i = size * 2;
n = strlen(in);
- if (n > (size * 2)) {
- BIO_printf(bio_err, "hex string is too long\n");
- return (0);
+ if (n > i) {
+ BIO_printf(bio_err, "hex string is too long, ignoring excess\n");
+ n = i; /* ignore exceeding part */
+ } else if (n < i) {
+ BIO_printf(bio_err, "hex string is too short, padding with zero bytes to length\n");
}
+
memset(out, 0, size);
for (i = 0; i < n; i++) {
- j = (unsigned char)*in;
- *(in++) = '\0';
- if (j == 0)
- break;
+ j = (unsigned char)*in++;
if (!isxdigit(j)) {
BIO_printf(bio_err, "non-hex digit\n");
- return (0);
+ return 0;
}
j = (unsigned char)OPENSSL_hexchar2int(j);
if (i & 1)
else
out[i / 2] = (j << 4);
}
- return (1);
+ return 1;
}
projects / openssl.git / blobdiff