/*
- * Copyright 1995-2021 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 1995-2024 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
#define SIZE (512)
#define BSIZE (8*1024)
+#define PBKDF2_ITER_DEFAULT 10000
+#define STR(a) XSTR(a)
+#define XSTR(a) #a
+
static int set_hex(const char *in, unsigned char *out, int size);
static void show_ciphers(const OBJ_NAME *name, void *bio_);
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_ITER, OPT_PBKDF2, OPT_CIPHER,
- OPT_R_ENUM, OPT_PROV_ENUM
+ OPT_SALTLEN, OPT_R_ENUM, OPT_PROV_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"},
+ {"iter", OPT_ITER, 'p',
+ "Specify the iteration count and force the use of PBKDF2"},
+ {OPT_MORE_STR, 0, 0, "Default: " STR(PBKDF2_ITER_DEFAULT)},
+ {"pbkdf2", OPT_PBKDF2, '-',
+ "Use password-based key derivation function 2 (PBKDF2)"},
+ {OPT_MORE_STR, 0, 0,
+ "Use -iter to change the iteration count from " STR(PBKDF2_ITER_DEFAULT)},
{"none", OPT_NONE, '-', "Don't encrypt"},
-#ifdef ZLIB
+ {"saltlen", OPT_SALTLEN, 'p', "Specify the PBKDF2 salt length (in bytes)"},
+ {OPT_MORE_STR, 0, 0, "Default: 16"},
+#ifndef OPENSSL_NO_ZLIB
{"z", OPT_Z, '-', "Compress or decompress encrypted data using zlib"},
#endif
{"", OPT_CIPHER, '-', "Any supported cipher"},
int base64 = 0, informat = FORMAT_BINARY, outformat = FORMAT_BINARY;
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];
+ unsigned char *buff = NULL, salt[EVP_MAX_IV_LENGTH];
+ int saltlen = 0;
int pbkdf2 = 0;
int iter = 0;
long n;
+ int streamable = 1;
+ int wrap = 0;
struct doall_enc_ciphers dec;
-#ifdef ZLIB
+#ifndef OPENSSL_NO_ZLIB
int do_zlib = 0;
BIO *bzl = NULL;
#endif
+ int do_brotli = 0;
+ BIO *bbrot = NULL;
+ int do_zstd = 0;
+ BIO *bzstd = NULL;
/* first check the command name */
if (strcmp(argv[0], "base64") == 0)
base64 = 1;
-#ifdef ZLIB
+#ifndef OPENSSL_NO_ZLIB
else if (strcmp(argv[0], "zlib") == 0)
do_zlib = 1;
+#endif
+#ifndef OPENSSL_NO_BROTLI
+ else if (strcmp(argv[0], "brotli") == 0)
+ do_brotli = 1;
+#endif
+#ifndef OPENSSL_NO_ZSTD
+ else if (strcmp(argv[0], "zstd") == 0)
+ do_zstd = 1;
#endif
else if (strcmp(argv[0], "enc") != 0)
ciphername = argv[0];
+ opt_set_unknown_name("cipher");
prog = opt_init(argc, argv, enc_options);
while ((o = opt_next()) != OPT_EOF) {
switch (o) {
base64 = 1;
break;
case OPT_Z:
-#ifdef ZLIB
+#ifndef OPENSSL_NO_ZLIB
do_zlib = 1;
#endif
break;
iter = opt_int_arg();
pbkdf2 = 1;
break;
+ case OPT_SALTLEN:
+ if (!opt_int(opt_arg(), &saltlen))
+ goto opthelp;
+ if (saltlen > (int)sizeof(salt))
+ saltlen = (int)sizeof(salt);
+ break;
case OPT_PBKDF2:
pbkdf2 = 1;
if (iter == 0) /* do not overwrite a chosen value */
- iter = 10000;
+ iter = PBKDF2_ITER_DEFAULT;
break;
case OPT_NONE:
cipher = NULL;
}
/* No extra arguments. */
- argc = opt_num_rest();
- if (argc != 0)
+ if (!opt_check_rest_arg(NULL))
goto opthelp;
if (!app_RAND_load())
goto end;
+ if (saltlen == 0 || pbkdf2 == 0)
+ saltlen = PKCS5_SALT_LEN;
/* Get the cipher name, either from progname (if set) or flag. */
- if (ciphername != NULL) {
- if (!opt_cipher(ciphername, &cipher))
- goto opthelp;
+ if (!opt_cipher(ciphername, &cipher))
+ goto opthelp;
+ if (cipher && (EVP_CIPHER_mode(cipher) == EVP_CIPH_WRAP_MODE)) {
+ wrap = 1;
+ streamable = 0;
}
if (digestname != NULL) {
if (!opt_md(digestname, &dgst))
if (verbose)
BIO_printf(bio_err, "bufsize=%d\n", bsize);
-#ifdef ZLIB
- if (!do_zlib)
+#ifndef OPENSSL_NO_ZLIB
+ if (do_zlib)
+ base64 = 0;
#endif
- if (base64) {
- if (enc)
- outformat = FORMAT_BASE64;
- else
- informat = FORMAT_BASE64;
- }
+ if (do_brotli)
+ base64 = 0;
+ if (do_zstd)
+ base64 = 0;
+
+ if (base64) {
+ if (enc)
+ outformat = FORMAT_BASE64;
+ else
+ informat = FORMAT_BASE64;
+ }
strbuf = app_malloc(SIZE, "strbuf");
buff = app_malloc(EVP_ENCODE_LENGTH(bsize), "evp buffer");
if (infile == NULL) {
+ if (!streamable && printkey != 2) { /* if just print key and exit, it's ok */
+ BIO_printf(bio_err, "Unstreamable cipher mode\n");
+ goto end;
+ }
in = dup_bio_in(informat);
} else {
in = bio_open_default(infile, 'r', informat);
rbio = in;
wbio = out;
-#ifdef ZLIB
+#ifndef OPENSSL_NO_COMP
+# ifndef OPENSSL_NO_ZLIB
if (do_zlib) {
if ((bzl = BIO_new(BIO_f_zlib())) == NULL)
goto end;
else
rbio = BIO_push(bzl, rbio);
}
+# endif
+
+ if (do_brotli) {
+ if ((bbrot = BIO_new(BIO_f_brotli())) == NULL)
+ goto end;
+ if (debug) {
+ BIO_set_callback_ex(bbrot, BIO_debug_callback_ex);
+ BIO_set_callback_arg(bbrot, (char *)bio_err);
+ }
+ if (enc)
+ wbio = BIO_push(bbrot, wbio);
+ else
+ rbio = BIO_push(bbrot, rbio);
+ }
+
+ if (do_zstd) {
+ if ((bzstd = BIO_new(BIO_f_zstd())) == NULL)
+ goto end;
+ if (debug) {
+ BIO_set_callback_ex(bzstd, BIO_debug_callback_ex);
+ BIO_set_callback_arg(bzstd, (char *)bio_err);
+ }
+ if (enc)
+ wbio = BIO_push(bzstd, wbio);
+ else
+ rbio = BIO_push(bzstd, rbio);
+ }
#endif
if (base64) {
if (nosalt) {
sptr = NULL;
} else {
- if (hsalt != NULL && !set_hex(hsalt, salt, sizeof(salt))) {
+ if (hsalt != NULL && !set_hex(hsalt, salt, saltlen)) {
BIO_printf(bio_err, "invalid hex salt value\n");
goto end;
}
if (enc) { /* encryption */
if (hsalt == NULL) {
- if (RAND_bytes(salt, sizeof(salt)) <= 0) {
+ if (RAND_bytes(salt, saltlen) <= 0) {
BIO_printf(bio_err, "RAND_bytes failed\n");
goto end;
}
sizeof(magic) - 1) != sizeof(magic) - 1
|| BIO_write(wbio,
(char *)salt,
- sizeof(salt)) != sizeof(salt))) {
+ saltlen) != saltlen)) {
BIO_printf(bio_err, "error writing output file\n");
goto end;
}
}
if (memcmp(mbuf, magic, sizeof(mbuf)) == 0) { /* file IS salted */
if (BIO_read(rbio, salt,
- sizeof(salt)) != sizeof(salt)) {
+ saltlen) != saltlen) {
BIO_printf(bio_err, "error reading input file\n");
goto end;
}
int iklen = EVP_CIPHER_get_key_length(cipher);
int ivlen = EVP_CIPHER_get_iv_length(cipher);
/* not needed if HASH_UPDATE() is fixed : */
- int islen = (sptr != NULL ? sizeof(salt) : 0);
+ int islen = (sptr != NULL ? saltlen : 0);
+
if (!PKCS5_PBKDF2_HMAC(str, str_len, sptr, islen,
iter, dgst, iklen+ivlen, tmpkeyiv)) {
BIO_printf(bio_err, "PKCS5_PBKDF2_HMAC failed\n");
}
if (hiv != NULL) {
int siz = EVP_CIPHER_get_iv_length(cipher);
+
if (siz == 0) {
BIO_printf(bio_err, "warning: iv not used by this cipher\n");
} else if (!set_hex(hiv, iv, siz)) {
}
}
if ((hiv == NULL) && (str == NULL)
- && EVP_CIPHER_get_iv_length(cipher) != 0) {
+ && EVP_CIPHER_get_iv_length(cipher) != 0
+ && wrap == 0) {
/*
* No IV was explicitly set and no IV was generated.
* Hence the IV is undefined, making correct decryption impossible.
BIO_get_cipher_ctx(benc, &ctx);
+ if (wrap == 1)
+ EVP_CIPHER_CTX_set_flags(ctx, EVP_CIPHER_CTX_FLAG_WRAP_ALLOW);
+
if (!EVP_CipherInit_ex(ctx, cipher, e, NULL, NULL, enc)) {
BIO_printf(bio_err, "Error setting cipher %s\n",
EVP_CIPHER_get0_name(cipher));
if (nopad)
EVP_CIPHER_CTX_set_padding(ctx, 0);
- if (!EVP_CipherInit_ex(ctx, NULL, NULL, key, iv, enc)) {
+ if (!EVP_CipherInit_ex(ctx, NULL, NULL, key,
+ (hiv == NULL && wrap == 1 ? NULL : iv), enc)) {
BIO_printf(bio_err, "Error setting cipher %s\n",
EVP_CIPHER_get0_name(cipher));
ERR_print_errors(bio_err);
if (printkey) {
if (!nosalt) {
printf("salt=");
- for (i = 0; i < (int)sizeof(salt); i++)
+ for (i = 0; i < (int)saltlen; i++)
printf("%02X", salt[i]);
printf("\n");
}
inl = BIO_read(rbio, (char *)buff, bsize);
if (inl <= 0)
break;
+ if (!streamable && !BIO_eof(rbio)) { /* do not output data */
+ BIO_printf(bio_err, "Unstreamable cipher mode\n");
+ goto end;
+ }
if (BIO_write(wbio, (char *)buff, inl) != inl) {
BIO_printf(bio_err, "error writing output file\n");
goto end;
}
+ if (!streamable)
+ break;
}
if (!BIO_flush(wbio)) {
- BIO_printf(bio_err, "bad decrypt\n");
+ if (enc)
+ BIO_printf(bio_err, "bad encrypt\n");
+ else
+ BIO_printf(bio_err, "bad decrypt\n");
goto end;
}
BIO_free(b64);
EVP_MD_free(dgst);
EVP_CIPHER_free(cipher);
-#ifdef ZLIB
+#ifndef OPENSSL_NO_ZLIB
BIO_free(bzl);
#endif
+ BIO_free(bbrot);
+ BIO_free(bzstd);
release_engine(e);
OPENSSL_free(pass);
return ret;
projects / openssl.git / blobdiff