278 lines
7.8 KiB
C
278 lines
7.8 KiB
C
/*
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* Copyright 2000-2020 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the OpenSSL license (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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#include <openssl/opensslconf.h>
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#include "apps.h"
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#include "progs.h"
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#include <string.h>
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#include <openssl/err.h>
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#include <openssl/pem.h>
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#include <openssl/rsa.h>
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#define RSA_SIGN 1
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#define RSA_VERIFY 2
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#define RSA_ENCRYPT 3
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#define RSA_DECRYPT 4
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#define KEY_PRIVKEY 1
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#define KEY_PUBKEY 2
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#define KEY_CERT 3
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typedef enum OPTION_choice {
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OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
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OPT_ENGINE, OPT_IN, OPT_OUT, OPT_ASN1PARSE, OPT_HEXDUMP,
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OPT_RAW, OPT_OAEP, OPT_SSL, OPT_PKCS, OPT_X931,
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OPT_SIGN, OPT_VERIFY, OPT_REV, OPT_ENCRYPT, OPT_DECRYPT,
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OPT_PUBIN, OPT_CERTIN, OPT_INKEY, OPT_PASSIN, OPT_KEYFORM,
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OPT_R_ENUM
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} OPTION_CHOICE;
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const OPTIONS rsautl_options[] = {
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{"help", OPT_HELP, '-', "Display this summary"},
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{"in", OPT_IN, '<', "Input file"},
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{"out", OPT_OUT, '>', "Output file"},
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{"inkey", OPT_INKEY, 's', "Input key"},
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{"keyform", OPT_KEYFORM, 'E', "Private key format - default PEM"},
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{"pubin", OPT_PUBIN, '-', "Input is an RSA public"},
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{"certin", OPT_CERTIN, '-', "Input is a cert carrying an RSA public key"},
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{"ssl", OPT_SSL, '-', "Use SSL v2 padding"},
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{"raw", OPT_RAW, '-', "Use no padding"},
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{"pkcs", OPT_PKCS, '-', "Use PKCS#1 v1.5 padding (default)"},
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{"oaep", OPT_OAEP, '-', "Use PKCS#1 OAEP"},
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{"sign", OPT_SIGN, '-', "Sign with private key"},
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{"verify", OPT_VERIFY, '-', "Verify with public key"},
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{"asn1parse", OPT_ASN1PARSE, '-',
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"Run output through asn1parse; useful with -verify"},
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{"hexdump", OPT_HEXDUMP, '-', "Hex dump output"},
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{"x931", OPT_X931, '-', "Use ANSI X9.31 padding"},
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{"rev", OPT_REV, '-', "Reverse the order of the input buffer"},
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{"encrypt", OPT_ENCRYPT, '-', "Encrypt with public key"},
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{"decrypt", OPT_DECRYPT, '-', "Decrypt with private key"},
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{"passin", OPT_PASSIN, 's', "Input file pass phrase source"},
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OPT_R_OPTIONS,
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#ifndef OPENSSL_NO_ENGINE
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{"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
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#endif
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{NULL}
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};
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int rsautl_main(int argc, char **argv)
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{
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BIO *in = NULL, *out = NULL;
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ENGINE *e = NULL;
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EVP_PKEY *pkey = NULL;
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RSA *rsa = NULL;
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X509 *x;
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char *infile = NULL, *outfile = NULL, *keyfile = NULL;
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char *passinarg = NULL, *passin = NULL, *prog;
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char rsa_mode = RSA_VERIFY, key_type = KEY_PRIVKEY;
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unsigned char *rsa_in = NULL, *rsa_out = NULL, pad = RSA_PKCS1_PADDING;
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int rsa_inlen, keyformat = FORMAT_PEM, keysize, ret = 1;
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int rsa_outlen = 0, hexdump = 0, asn1parse = 0, need_priv = 0, rev = 0;
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OPTION_CHOICE o;
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prog = opt_init(argc, argv, rsautl_options);
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while ((o = opt_next()) != OPT_EOF) {
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switch (o) {
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case OPT_EOF:
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case OPT_ERR:
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opthelp:
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BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
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goto end;
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case OPT_HELP:
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opt_help(rsautl_options);
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ret = 0;
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goto end;
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case OPT_KEYFORM:
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if (!opt_format(opt_arg(), OPT_FMT_PDE, &keyformat))
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goto opthelp;
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break;
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case OPT_IN:
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infile = opt_arg();
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break;
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case OPT_OUT:
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outfile = opt_arg();
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break;
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case OPT_ENGINE:
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e = setup_engine(opt_arg(), 0);
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break;
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case OPT_ASN1PARSE:
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asn1parse = 1;
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break;
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case OPT_HEXDUMP:
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hexdump = 1;
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break;
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case OPT_RAW:
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pad = RSA_NO_PADDING;
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break;
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case OPT_OAEP:
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pad = RSA_PKCS1_OAEP_PADDING;
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break;
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case OPT_SSL:
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pad = RSA_SSLV23_PADDING;
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break;
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case OPT_PKCS:
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pad = RSA_PKCS1_PADDING;
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break;
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case OPT_X931:
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pad = RSA_X931_PADDING;
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break;
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case OPT_SIGN:
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rsa_mode = RSA_SIGN;
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need_priv = 1;
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break;
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case OPT_VERIFY:
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rsa_mode = RSA_VERIFY;
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break;
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case OPT_REV:
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rev = 1;
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break;
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case OPT_ENCRYPT:
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rsa_mode = RSA_ENCRYPT;
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break;
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case OPT_DECRYPT:
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rsa_mode = RSA_DECRYPT;
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need_priv = 1;
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break;
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case OPT_PUBIN:
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key_type = KEY_PUBKEY;
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break;
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case OPT_CERTIN:
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key_type = KEY_CERT;
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break;
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case OPT_INKEY:
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keyfile = opt_arg();
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break;
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case OPT_PASSIN:
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passinarg = opt_arg();
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break;
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case OPT_R_CASES:
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if (!opt_rand(o))
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goto end;
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break;
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}
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}
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argc = opt_num_rest();
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if (argc != 0)
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goto opthelp;
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if (need_priv && (key_type != KEY_PRIVKEY)) {
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BIO_printf(bio_err, "A private key is needed for this operation\n");
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goto end;
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}
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if (!app_passwd(passinarg, NULL, &passin, NULL)) {
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BIO_printf(bio_err, "Error getting password\n");
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goto end;
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}
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switch (key_type) {
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case KEY_PRIVKEY:
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pkey = load_key(keyfile, keyformat, 0, passin, e, "Private Key");
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break;
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case KEY_PUBKEY:
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pkey = load_pubkey(keyfile, keyformat, 0, NULL, e, "Public Key");
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break;
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case KEY_CERT:
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x = load_cert(keyfile, keyformat, "Certificate");
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if (x) {
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pkey = X509_get_pubkey(x);
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X509_free(x);
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}
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break;
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}
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if (pkey == NULL)
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return 1;
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rsa = EVP_PKEY_get1_RSA(pkey);
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EVP_PKEY_free(pkey);
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if (rsa == NULL) {
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BIO_printf(bio_err, "Error getting RSA key\n");
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ERR_print_errors(bio_err);
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goto end;
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}
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in = bio_open_default(infile, 'r', FORMAT_BINARY);
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if (in == NULL)
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goto end;
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out = bio_open_default(outfile, 'w', FORMAT_BINARY);
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if (out == NULL)
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goto end;
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keysize = RSA_size(rsa);
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rsa_in = app_malloc(keysize * 2, "hold rsa key");
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rsa_out = app_malloc(keysize, "output rsa key");
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/* Read the input data */
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rsa_inlen = BIO_read(in, rsa_in, keysize * 2);
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if (rsa_inlen < 0) {
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BIO_printf(bio_err, "Error reading input Data\n");
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goto end;
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}
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if (rev) {
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int i;
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unsigned char ctmp;
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for (i = 0; i < rsa_inlen / 2; i++) {
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ctmp = rsa_in[i];
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rsa_in[i] = rsa_in[rsa_inlen - 1 - i];
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rsa_in[rsa_inlen - 1 - i] = ctmp;
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}
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}
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switch (rsa_mode) {
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case RSA_VERIFY:
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rsa_outlen = RSA_public_decrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad);
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break;
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case RSA_SIGN:
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rsa_outlen =
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RSA_private_encrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad);
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break;
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case RSA_ENCRYPT:
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rsa_outlen = RSA_public_encrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad);
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break;
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case RSA_DECRYPT:
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rsa_outlen =
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RSA_private_decrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad);
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break;
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}
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if (rsa_outlen < 0) {
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BIO_printf(bio_err, "RSA operation error\n");
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ERR_print_errors(bio_err);
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goto end;
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}
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ret = 0;
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if (asn1parse) {
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if (!ASN1_parse_dump(out, rsa_out, rsa_outlen, 1, -1)) {
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ERR_print_errors(bio_err);
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}
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} else if (hexdump) {
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BIO_dump(out, (char *)rsa_out, rsa_outlen);
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} else {
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BIO_write(out, rsa_out, rsa_outlen);
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}
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end:
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RSA_free(rsa);
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release_engine(e);
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BIO_free(in);
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BIO_free_all(out);
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OPENSSL_free(rsa_in);
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OPENSSL_free(rsa_out);
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OPENSSL_free(passin);
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return ret;
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}
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