| /* |
| * Copyright 2000-2020 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 |
| * 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_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 |
| } OPTION_CHOICE; |
| |
| const OPTIONS rsautl_options[] = { |
| {"help", OPT_HELP, '-', "Display this summary"}, |
| {"in", OPT_IN, '<', "Input file"}, |
| {"out", OPT_OUT, '>', "Output file"}, |
| {"inkey", OPT_INKEY, 's', "Input key"}, |
| {"keyform", OPT_KEYFORM, 'E', "Private key format - default PEM"}, |
| {"pubin", OPT_PUBIN, '-', "Input is an RSA public"}, |
| {"certin", OPT_CERTIN, '-', "Input is a cert carrying an RSA public key"}, |
| {"ssl", OPT_SSL, '-', "Use SSL v2 padding"}, |
| {"raw", OPT_RAW, '-', "Use no padding"}, |
| {"pkcs", OPT_PKCS, '-', "Use PKCS#1 v1.5 padding (default)"}, |
| {"oaep", OPT_OAEP, '-', "Use PKCS#1 OAEP"}, |
| {"sign", OPT_SIGN, '-', "Sign with private key"}, |
| {"verify", OPT_VERIFY, '-', "Verify with public key"}, |
| {"asn1parse", OPT_ASN1PARSE, '-', |
| "Run output through asn1parse; useful with -verify"}, |
| {"hexdump", OPT_HEXDUMP, '-', "Hex dump output"}, |
| {"x931", OPT_X931, '-', "Use ANSI X9.31 padding"}, |
| {"rev", OPT_REV, '-', "Reverse the order of the input buffer"}, |
| {"encrypt", OPT_ENCRYPT, '-', "Encrypt with public key"}, |
| {"decrypt", OPT_DECRYPT, '-', "Decrypt with private key"}, |
| {"passin", OPT_PASSIN, 's', "Input file pass phrase source"}, |
| OPT_R_OPTIONS, |
| #ifndef OPENSSL_NO_ENGINE |
| {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"}, |
| #endif |
| {NULL} |
| }; |
| |
| int rsautl_main(int argc, char **argv) |
| { |
| BIO *in = NULL, *out = NULL; |
| ENGINE *e = NULL; |
| EVP_PKEY *pkey = NULL; |
| RSA *rsa = 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; |
| int rsa_inlen, keyformat = FORMAT_PEM, keysize, ret = 1; |
| int rsa_outlen = 0, 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_PDE, &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_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; |
| } |
| } |
| 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, keyformat, "Certificate"); |
| if (x) { |
| pkey = X509_get_pubkey(x); |
| X509_free(x); |
| } |
| break; |
| } |
| |
| if (pkey == NULL) |
| return 1; |
| |
| rsa = EVP_PKEY_get1_RSA(pkey); |
| EVP_PKEY_free(pkey); |
| |
| if (rsa == NULL) { |
| BIO_printf(bio_err, "Error getting RSA key\n"); |
| ERR_print_errors(bio_err); |
| goto end; |
| } |
| |
| 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 = RSA_size(rsa); |
| |
| rsa_in = app_malloc(keysize * 2, "hold rsa key"); |
| rsa_out = app_malloc(keysize, "output rsa key"); |
| |
| /* Read the input data */ |
| rsa_inlen = BIO_read(in, rsa_in, keysize * 2); |
| if (rsa_inlen < 0) { |
| BIO_printf(bio_err, "Error reading input Data\n"); |
| goto end; |
| } |
| if (rev) { |
| int 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; |
| } |
| } |
| switch (rsa_mode) { |
| |
| case RSA_VERIFY: |
| rsa_outlen = RSA_public_decrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad); |
| break; |
| |
| case RSA_SIGN: |
| rsa_outlen = |
| RSA_private_encrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad); |
| break; |
| |
| case RSA_ENCRYPT: |
| rsa_outlen = RSA_public_encrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad); |
| break; |
| |
| case RSA_DECRYPT: |
| rsa_outlen = |
| RSA_private_decrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad); |
| break; |
| } |
| |
| if (rsa_outlen < 0) { |
| 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: |
| RSA_free(rsa); |
| release_engine(e); |
| BIO_free(in); |
| BIO_free_all(out); |
| OPENSSL_free(rsa_in); |
| OPENSSL_free(rsa_out); |
| OPENSSL_free(passin); |
| return ret; |
| } |