openssl/apps/rsautl.c
Rich Salz 021410ea3f Check non-option arguments
Make sure all commands check to see if there are any "extra" arguments
after the options, and print an error if so.

Made all error messages consistent (which is to say, minimal).

Fixes: #13527

Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/13563)
2020-12-15 11:47:17 +01:00

295 lines
8.5 KiB
C

/*
* Copyright 2000-2020 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
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include <openssl/opensslconf.h>
#include "apps.h"
#include "progs.h"
#include <string.h>
#include <openssl/err.h>
#include <openssl/pem.h>
#include <openssl/rsa.h>
#define RSA_SIGN 1
#define RSA_VERIFY 2
#define RSA_ENCRYPT 3
#define RSA_DECRYPT 4
#define KEY_PRIVKEY 1
#define KEY_PUBKEY 2
#define KEY_CERT 3
typedef enum OPTION_choice {
OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
OPT_ENGINE, OPT_IN, OPT_OUT, OPT_ASN1PARSE, OPT_HEXDUMP,
OPT_RSA_RAW, OPT_OAEP, OPT_SSL, OPT_PKCS, OPT_X931,
OPT_SIGN, OPT_VERIFY, OPT_REV, OPT_ENCRYPT, OPT_DECRYPT,
OPT_PUBIN, OPT_CERTIN, OPT_INKEY, OPT_PASSIN, OPT_KEYFORM,
OPT_R_ENUM, OPT_PROV_ENUM
} OPTION_CHOICE;
const OPTIONS rsautl_options[] = {
OPT_SECTION("General"),
{"help", OPT_HELP, '-', "Display this summary"},
{"sign", OPT_SIGN, '-', "Sign with private key"},
{"verify", OPT_VERIFY, '-', "Verify with public key"},
{"encrypt", OPT_ENCRYPT, '-', "Encrypt with public key"},
{"decrypt", OPT_DECRYPT, '-', "Decrypt with private key"},
#ifndef OPENSSL_NO_ENGINE
{"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
#endif
OPT_SECTION("Input"),
{"in", OPT_IN, '<', "Input file"},
{"inkey", OPT_INKEY, 's', "Input key"},
{"keyform", OPT_KEYFORM, 'E', "Private key format (ENGINE, other values ignored)"},
{"pubin", OPT_PUBIN, '-', "Input is an RSA public"},
{"certin", OPT_CERTIN, '-', "Input is a cert carrying an RSA public key"},
{"rev", OPT_REV, '-', "Reverse the order of the input buffer"},
{"passin", OPT_PASSIN, 's', "Input file pass phrase source"},
OPT_SECTION("Output"),
{"out", OPT_OUT, '>', "Output file"},
{"ssl", OPT_SSL, '-', "Use SSL v2 padding"},
{"raw", OPT_RSA_RAW, '-', "Use no padding"},
{"pkcs", OPT_PKCS, '-', "Use PKCS#1 v1.5 padding (default)"},
{"x931", OPT_X931, '-', "Use ANSI X9.31 padding"},
{"oaep", OPT_OAEP, '-', "Use PKCS#1 OAEP"},
{"asn1parse", OPT_ASN1PARSE, '-',
"Run output through asn1parse; useful with -verify"},
{"hexdump", OPT_HEXDUMP, '-', "Hex dump output"},
OPT_R_OPTIONS,
OPT_PROV_OPTIONS,
{NULL}
};
int rsautl_main(int argc, char **argv)
{
BIO *in = NULL, *out = NULL;
ENGINE *e = NULL;
EVP_PKEY *pkey = NULL;
EVP_PKEY_CTX *ctx = NULL;
X509 *x;
char *infile = NULL, *outfile = NULL, *keyfile = NULL;
char *passinarg = NULL, *passin = NULL, *prog;
char rsa_mode = RSA_VERIFY, key_type = KEY_PRIVKEY;
unsigned char *rsa_in = NULL, *rsa_out = NULL, pad = RSA_PKCS1_PADDING;
size_t rsa_inlen, rsa_outlen = 0;
int keyformat = FORMAT_PEM, keysize, ret = 1, rv;
int hexdump = 0, asn1parse = 0, need_priv = 0, rev = 0;
OPTION_CHOICE o;
prog = opt_init(argc, argv, rsautl_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(rsautl_options);
ret = 0;
goto end;
case OPT_KEYFORM:
if (!opt_format(opt_arg(), OPT_FMT_ANY, &keyformat))
goto opthelp;
break;
case OPT_IN:
infile = opt_arg();
break;
case OPT_OUT:
outfile = opt_arg();
break;
case OPT_ENGINE:
e = setup_engine(opt_arg(), 0);
break;
case OPT_ASN1PARSE:
asn1parse = 1;
break;
case OPT_HEXDUMP:
hexdump = 1;
break;
case OPT_RSA_RAW:
pad = RSA_NO_PADDING;
break;
case OPT_OAEP:
pad = RSA_PKCS1_OAEP_PADDING;
break;
case OPT_SSL:
pad = RSA_SSLV23_PADDING;
break;
case OPT_PKCS:
pad = RSA_PKCS1_PADDING;
break;
case OPT_X931:
pad = RSA_X931_PADDING;
break;
case OPT_SIGN:
rsa_mode = RSA_SIGN;
need_priv = 1;
break;
case OPT_VERIFY:
rsa_mode = RSA_VERIFY;
break;
case OPT_REV:
rev = 1;
break;
case OPT_ENCRYPT:
rsa_mode = RSA_ENCRYPT;
break;
case OPT_DECRYPT:
rsa_mode = RSA_DECRYPT;
need_priv = 1;
break;
case OPT_PUBIN:
key_type = KEY_PUBKEY;
break;
case OPT_CERTIN:
key_type = KEY_CERT;
break;
case OPT_INKEY:
keyfile = opt_arg();
break;
case OPT_PASSIN:
passinarg = opt_arg();
break;
case OPT_R_CASES:
if (!opt_rand(o))
goto end;
break;
case OPT_PROV_CASES:
if (!opt_provider(o))
goto end;
break;
}
}
/* No extra arguments. */
argc = opt_num_rest();
if (argc != 0)
goto opthelp;
if (need_priv && (key_type != KEY_PRIVKEY)) {
BIO_printf(bio_err, "A private key is needed for this operation\n");
goto end;
}
if (!app_passwd(passinarg, NULL, &passin, NULL)) {
BIO_printf(bio_err, "Error getting password\n");
goto end;
}
switch (key_type) {
case KEY_PRIVKEY:
pkey = load_key(keyfile, keyformat, 0, passin, e, "private key");
break;
case KEY_PUBKEY:
pkey = load_pubkey(keyfile, keyformat, 0, NULL, e, "public key");
break;
case KEY_CERT:
x = load_cert(keyfile, "Certificate");
if (x) {
pkey = X509_get_pubkey(x);
X509_free(x);
}
break;
}
if (pkey == NULL)
return 1;
in = bio_open_default(infile, 'r', FORMAT_BINARY);
if (in == NULL)
goto end;
out = bio_open_default(outfile, 'w', FORMAT_BINARY);
if (out == NULL)
goto end;
keysize = EVP_PKEY_size(pkey);
rsa_in = app_malloc(keysize * 2, "hold rsa key");
rsa_out = app_malloc(keysize, "output rsa key");
rsa_outlen = keysize;
/* Read the input data */
rv = BIO_read(in, rsa_in, keysize * 2);
if (rv < 0) {
BIO_printf(bio_err, "Error reading input Data\n");
goto end;
}
rsa_inlen = rv;
if (rev) {
size_t i;
unsigned char ctmp;
for (i = 0; i < rsa_inlen / 2; i++) {
ctmp = rsa_in[i];
rsa_in[i] = rsa_in[rsa_inlen - 1 - i];
rsa_in[rsa_inlen - 1 - i] = ctmp;
}
}
if ((ctx = EVP_PKEY_CTX_new_from_pkey(NULL, pkey, NULL)) == NULL)
goto end;
switch (rsa_mode) {
case RSA_VERIFY:
rv = EVP_PKEY_verify_recover_init(ctx)
&& EVP_PKEY_CTX_set_rsa_padding(ctx, pad)
&& EVP_PKEY_verify_recover(ctx, rsa_out, &rsa_outlen,
rsa_in, rsa_inlen);
break;
case RSA_SIGN:
rv = EVP_PKEY_sign_init(ctx)
&& EVP_PKEY_CTX_set_rsa_padding(ctx, pad)
&& EVP_PKEY_sign(ctx, rsa_out, &rsa_outlen, rsa_in, rsa_inlen);
break;
case RSA_ENCRYPT:
rv = EVP_PKEY_encrypt_init(ctx)
&& EVP_PKEY_CTX_set_rsa_padding(ctx, pad)
&& EVP_PKEY_encrypt(ctx, rsa_out, &rsa_outlen, rsa_in, rsa_inlen);
break;
case RSA_DECRYPT:
rv = EVP_PKEY_decrypt_init(ctx)
&& EVP_PKEY_CTX_set_rsa_padding(ctx, pad)
&& EVP_PKEY_decrypt(ctx, rsa_out, &rsa_outlen, rsa_in, rsa_inlen);
break;
}
if (!rv) {
BIO_printf(bio_err, "RSA operation error\n");
ERR_print_errors(bio_err);
goto end;
}
ret = 0;
if (asn1parse) {
if (!ASN1_parse_dump(out, rsa_out, rsa_outlen, 1, -1)) {
ERR_print_errors(bio_err);
}
} else if (hexdump) {
BIO_dump(out, (char *)rsa_out, rsa_outlen);
} else {
BIO_write(out, rsa_out, rsa_outlen);
}
end:
EVP_PKEY_CTX_free(ctx);
EVP_PKEY_free(pkey);
release_engine(e);
BIO_free(in);
BIO_free_all(out);
OPENSSL_free(rsa_in);
OPENSSL_free(rsa_out);
OPENSSL_free(passin);
return ret;
}