1 /* 2 * Copyright 2000-2023 The OpenSSL Project Authors. All Rights Reserved. 3 * 4 * Licensed under the Apache License 2.0 (the "License"). You may not use 5 * this file except in compliance with the License. You can obtain a copy 6 * in the file LICENSE in the source distribution or at 7 * https://www.openssl.org/source/license.html 8 */ 9 10 #include <openssl/opensslconf.h> 11 12 #include "apps.h" 13 #include "progs.h" 14 #include <string.h> 15 #include <openssl/err.h> 16 #include <openssl/pem.h> 17 #include <openssl/rsa.h> 18 19 #define RSA_SIGN 1 20 #define RSA_VERIFY 2 21 #define RSA_ENCRYPT 3 22 #define RSA_DECRYPT 4 23 24 #define KEY_PRIVKEY 1 25 #define KEY_PUBKEY 2 26 #define KEY_CERT 3 27 28 typedef enum OPTION_choice { 29 OPT_COMMON, 30 OPT_ENGINE, 31 OPT_IN, 32 OPT_OUT, 33 OPT_ASN1PARSE, 34 OPT_HEXDUMP, 35 OPT_RSA_RAW, 36 OPT_OAEP, 37 OPT_PKCS, 38 OPT_X931, 39 OPT_SIGN, 40 OPT_VERIFY, 41 OPT_REV, 42 OPT_ENCRYPT, 43 OPT_DECRYPT, 44 OPT_PUBIN, 45 OPT_CERTIN, 46 OPT_INKEY, 47 OPT_PASSIN, 48 OPT_KEYFORM, 49 OPT_R_ENUM, 50 OPT_PROV_ENUM 51 } OPTION_CHOICE; 52 53 const OPTIONS rsautl_options[] = { 54 OPT_SECTION("General"), 55 { "help", OPT_HELP, '-', "Display this summary" }, 56 { "sign", OPT_SIGN, '-', "Sign with private key" }, 57 { "verify", OPT_VERIFY, '-', "Verify with public key" }, 58 { "encrypt", OPT_ENCRYPT, '-', "Encrypt with public key" }, 59 { "decrypt", OPT_DECRYPT, '-', "Decrypt with private key" }, 60 #ifndef OPENSSL_NO_ENGINE 61 { "engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device" }, 62 #endif 63 64 OPT_SECTION("Input"), 65 { "in", OPT_IN, '<', "Input file" }, 66 { "inkey", OPT_INKEY, 's', "Input key, by default an RSA private key" }, 67 { "keyform", OPT_KEYFORM, 'E', "Private key format (ENGINE, other values ignored)" }, 68 { "pubin", OPT_PUBIN, '-', "Input key is an RSA public pkey" }, 69 { "certin", OPT_CERTIN, '-', "Input is a cert carrying an RSA public key" }, 70 { "rev", OPT_REV, '-', "Reverse the order of the input buffer" }, 71 { "passin", OPT_PASSIN, 's', "Input file pass phrase source" }, 72 73 OPT_SECTION("Output"), 74 { "out", OPT_OUT, '>', "Output file" }, 75 { "raw", OPT_RSA_RAW, '-', "Use no padding" }, 76 { "pkcs", OPT_PKCS, '-', "Use PKCS#1 v1.5 padding (default)" }, 77 { "x931", OPT_X931, '-', "Use ANSI X9.31 padding" }, 78 { "oaep", OPT_OAEP, '-', "Use PKCS#1 OAEP" }, 79 { "asn1parse", OPT_ASN1PARSE, '-', 80 "Run output through asn1parse; useful with -verify" }, 81 { "hexdump", OPT_HEXDUMP, '-', "Hex dump output" }, 82 83 OPT_R_OPTIONS, 84 OPT_PROV_OPTIONS, 85 { NULL } 86 }; 87 88 int rsautl_main(int argc, char **argv) 89 { 90 BIO *in = NULL, *out = NULL; 91 ENGINE *e = NULL; 92 EVP_PKEY *pkey = NULL; 93 EVP_PKEY_CTX *ctx = NULL; 94 X509 *x; 95 char *infile = NULL, *outfile = NULL, *keyfile = NULL; 96 char *passinarg = NULL, *passin = NULL, *prog; 97 char rsa_mode = RSA_VERIFY, key_type = KEY_PRIVKEY; 98 unsigned char *rsa_in = NULL, *rsa_out = NULL, pad = RSA_PKCS1_PADDING; 99 size_t rsa_inlen, rsa_outlen = 0; 100 int keyformat = FORMAT_UNDEF, keysize, ret = 1, rv; 101 int hexdump = 0, asn1parse = 0, need_priv = 0, rev = 0; 102 OPTION_CHOICE o; 103 104 prog = opt_init(argc, argv, rsautl_options); 105 while ((o = opt_next()) != OPT_EOF) { 106 switch (o) { 107 case OPT_EOF: 108 case OPT_ERR: 109 opthelp: 110 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog); 111 goto end; 112 case OPT_HELP: 113 opt_help(rsautl_options); 114 ret = 0; 115 goto end; 116 case OPT_KEYFORM: 117 if (!opt_format(opt_arg(), OPT_FMT_ANY, &keyformat)) 118 goto opthelp; 119 break; 120 case OPT_IN: 121 infile = opt_arg(); 122 break; 123 case OPT_OUT: 124 outfile = opt_arg(); 125 break; 126 case OPT_ENGINE: 127 e = setup_engine(opt_arg(), 0); 128 break; 129 case OPT_ASN1PARSE: 130 asn1parse = 1; 131 break; 132 case OPT_HEXDUMP: 133 hexdump = 1; 134 break; 135 case OPT_RSA_RAW: 136 pad = RSA_NO_PADDING; 137 break; 138 case OPT_OAEP: 139 pad = RSA_PKCS1_OAEP_PADDING; 140 break; 141 case OPT_PKCS: 142 pad = RSA_PKCS1_PADDING; 143 break; 144 case OPT_X931: 145 pad = RSA_X931_PADDING; 146 break; 147 case OPT_SIGN: 148 rsa_mode = RSA_SIGN; 149 need_priv = 1; 150 break; 151 case OPT_VERIFY: 152 rsa_mode = RSA_VERIFY; 153 break; 154 case OPT_REV: 155 rev = 1; 156 break; 157 case OPT_ENCRYPT: 158 rsa_mode = RSA_ENCRYPT; 159 break; 160 case OPT_DECRYPT: 161 rsa_mode = RSA_DECRYPT; 162 need_priv = 1; 163 break; 164 case OPT_PUBIN: 165 key_type = KEY_PUBKEY; 166 break; 167 case OPT_CERTIN: 168 key_type = KEY_CERT; 169 break; 170 case OPT_INKEY: 171 keyfile = opt_arg(); 172 break; 173 case OPT_PASSIN: 174 passinarg = opt_arg(); 175 break; 176 case OPT_R_CASES: 177 if (!opt_rand(o)) 178 goto end; 179 break; 180 case OPT_PROV_CASES: 181 if (!opt_provider(o)) 182 goto end; 183 break; 184 } 185 } 186 187 /* No extra arguments. */ 188 if (!opt_check_rest_arg(NULL)) 189 goto opthelp; 190 191 if (!app_RAND_load()) 192 goto end; 193 194 if (need_priv && (key_type != KEY_PRIVKEY)) { 195 BIO_printf(bio_err, "A private key is needed for this operation\n"); 196 goto end; 197 } 198 199 if (!app_passwd(passinarg, NULL, &passin, NULL)) { 200 BIO_printf(bio_err, "Error getting password\n"); 201 goto end; 202 } 203 204 switch (key_type) { 205 case KEY_PRIVKEY: 206 pkey = load_key(keyfile, keyformat, 0, passin, e, "private key"); 207 break; 208 209 case KEY_PUBKEY: 210 pkey = load_pubkey(keyfile, keyformat, 0, NULL, e, "public key"); 211 break; 212 213 case KEY_CERT: 214 x = load_cert(keyfile, FORMAT_UNDEF, "Certificate"); 215 if (x) { 216 pkey = X509_get_pubkey(x); 217 X509_free(x); 218 } 219 break; 220 } 221 222 if (pkey == NULL) 223 return 1; 224 225 in = bio_open_default(infile, 'r', FORMAT_BINARY); 226 if (in == NULL) 227 goto end; 228 out = bio_open_default(outfile, 'w', FORMAT_BINARY); 229 if (out == NULL) 230 goto end; 231 232 keysize = EVP_PKEY_get_size(pkey); 233 234 rsa_in = app_malloc(keysize * 2, "hold rsa key"); 235 rsa_out = app_malloc(keysize, "output rsa key"); 236 rsa_outlen = keysize; 237 238 /* Read the input data */ 239 rv = BIO_read(in, rsa_in, keysize * 2); 240 if (rv < 0) { 241 BIO_printf(bio_err, "Error reading input Data\n"); 242 goto end; 243 } 244 rsa_inlen = rv; 245 if (rev) { 246 size_t i; 247 unsigned char ctmp; 248 249 for (i = 0; i < rsa_inlen / 2; i++) { 250 ctmp = rsa_in[i]; 251 rsa_in[i] = rsa_in[rsa_inlen - 1 - i]; 252 rsa_in[rsa_inlen - 1 - i] = ctmp; 253 } 254 } 255 256 if ((ctx = EVP_PKEY_CTX_new_from_pkey(NULL, pkey, NULL)) == NULL) 257 goto end; 258 259 switch (rsa_mode) { 260 case RSA_VERIFY: 261 rv = EVP_PKEY_verify_recover_init(ctx) > 0 262 && EVP_PKEY_CTX_set_rsa_padding(ctx, pad) > 0 263 && EVP_PKEY_verify_recover(ctx, rsa_out, &rsa_outlen, 264 rsa_in, rsa_inlen) 265 > 0; 266 break; 267 case RSA_SIGN: 268 rv = EVP_PKEY_sign_init(ctx) > 0 269 && EVP_PKEY_CTX_set_rsa_padding(ctx, pad) > 0 270 && EVP_PKEY_sign(ctx, rsa_out, &rsa_outlen, rsa_in, rsa_inlen) > 0; 271 break; 272 case RSA_ENCRYPT: 273 rv = EVP_PKEY_encrypt_init(ctx) > 0 274 && EVP_PKEY_CTX_set_rsa_padding(ctx, pad) > 0 275 && EVP_PKEY_encrypt(ctx, rsa_out, &rsa_outlen, rsa_in, rsa_inlen) > 0; 276 break; 277 case RSA_DECRYPT: 278 rv = EVP_PKEY_decrypt_init(ctx) > 0 279 && EVP_PKEY_CTX_set_rsa_padding(ctx, pad) > 0 280 && EVP_PKEY_decrypt(ctx, rsa_out, &rsa_outlen, rsa_in, rsa_inlen) > 0; 281 break; 282 } 283 284 if (!rv) { 285 BIO_printf(bio_err, "RSA operation error\n"); 286 ERR_print_errors(bio_err); 287 goto end; 288 } 289 ret = 0; 290 if (asn1parse) { 291 if (!ASN1_parse_dump(out, rsa_out, rsa_outlen, 1, -1)) { 292 ERR_print_errors(bio_err); 293 } 294 } else if (hexdump) { 295 BIO_dump(out, (char *)rsa_out, rsa_outlen); 296 } else { 297 BIO_write(out, rsa_out, rsa_outlen); 298 } 299 end: 300 EVP_PKEY_CTX_free(ctx); 301 EVP_PKEY_free(pkey); 302 release_engine(e); 303 BIO_free(in); 304 BIO_free_all(out); 305 OPENSSL_free(rsa_in); 306 OPENSSL_free(rsa_out); 307 OPENSSL_free(passin); 308 return ret; 309 } 310
Indexes created Sat Feb 28 05:31:39 UTC 2026