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-rw-r--r--apps/rsa.c322
1 files changed, 213 insertions, 109 deletions
diff --git a/apps/rsa.c b/apps/rsa.c
index aeda917cc768..0da342c38f2c 100644
--- a/apps/rsa.c
+++ b/apps/rsa.c
@@ -1,13 +1,17 @@
/*
- * Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 1995-2022 The OpenSSL Project Authors. All Rights Reserved.
*
- * Licensed under the OpenSSL license (the "License"). You may not use
+ * 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
*/
+/* Necessary for legacy RSA public key export */
+#define OPENSSL_SUPPRESS_DEPRECATED
+
#include <openssl/opensslconf.h>
+
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
@@ -21,60 +25,119 @@
#include <openssl/x509.h>
#include <openssl/pem.h>
#include <openssl/bn.h>
+#include <openssl/encoder.h>
+
+/*
+ * This include is to get OSSL_KEYMGMT_SELECT_*, which feels a bit
+ * much just for those macros... they might serve better as EVP macros.
+ */
+#include <openssl/core_dispatch.h>
+
+#ifndef OPENSSL_NO_RC4
+# define DEFAULT_PVK_ENCR_STRENGTH 2
+#else
+# define DEFAULT_PVK_ENCR_STRENGTH 0
+#endif
typedef enum OPTION_choice {
- OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
+ OPT_COMMON,
OPT_INFORM, OPT_OUTFORM, OPT_ENGINE, OPT_IN, OPT_OUT,
OPT_PUBIN, OPT_PUBOUT, OPT_PASSOUT, OPT_PASSIN,
OPT_RSAPUBKEY_IN, OPT_RSAPUBKEY_OUT,
/* Do not change the order here; see case statements below */
OPT_PVK_NONE, OPT_PVK_WEAK, OPT_PVK_STRONG,
- OPT_NOOUT, OPT_TEXT, OPT_MODULUS, OPT_CHECK, OPT_CIPHER
+ OPT_NOOUT, OPT_TEXT, OPT_MODULUS, OPT_CHECK, OPT_CIPHER,
+ OPT_PROV_ENUM, OPT_TRADITIONAL
} OPTION_CHOICE;
const OPTIONS rsa_options[] = {
+ OPT_SECTION("General"),
{"help", OPT_HELP, '-', "Display this summary"},
- {"inform", OPT_INFORM, 'f', "Input format, one of DER PEM"},
- {"outform", OPT_OUTFORM, 'f', "Output format, one of DER PEM PVK"},
+ {"check", OPT_CHECK, '-', "Verify key consistency"},
+ {"", OPT_CIPHER, '-', "Any supported cipher"},
+#ifndef OPENSSL_NO_ENGINE
+ {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
+#endif
+
+ OPT_SECTION("Input"),
{"in", OPT_IN, 's', "Input file"},
- {"out", OPT_OUT, '>', "Output file"},
+ {"inform", OPT_INFORM, 'f', "Input format (DER/PEM/P12/ENGINE)"},
{"pubin", OPT_PUBIN, '-', "Expect a public key in input file"},
- {"pubout", OPT_PUBOUT, '-', "Output a public key"},
- {"passout", OPT_PASSOUT, 's', "Output file pass phrase source"},
- {"passin", OPT_PASSIN, 's', "Input file pass phrase source"},
{"RSAPublicKey_in", OPT_RSAPUBKEY_IN, '-', "Input is an RSAPublicKey"},
+ {"passin", OPT_PASSIN, 's', "Input file pass phrase source"},
+
+ OPT_SECTION("Output"),
+ {"out", OPT_OUT, '>', "Output file"},
+ {"outform", OPT_OUTFORM, 'f', "Output format, one of DER PEM PVK"},
+ {"pubout", OPT_PUBOUT, '-', "Output a public key"},
{"RSAPublicKey_out", OPT_RSAPUBKEY_OUT, '-', "Output is an RSAPublicKey"},
+ {"passout", OPT_PASSOUT, 's', "Output file pass phrase source"},
{"noout", OPT_NOOUT, '-', "Don't print key out"},
{"text", OPT_TEXT, '-', "Print the key in text"},
{"modulus", OPT_MODULUS, '-', "Print the RSA key modulus"},
- {"check", OPT_CHECK, '-', "Verify key consistency"},
- {"", OPT_CIPHER, '-', "Any supported cipher"},
-#if !defined(OPENSSL_NO_DSA) && !defined(OPENSSL_NO_RC4)
+ {"traditional", OPT_TRADITIONAL, '-',
+ "Use traditional format for private keys"},
+
+#ifndef OPENSSL_NO_RC4
+ OPT_SECTION("PVK"),
{"pvk-strong", OPT_PVK_STRONG, '-', "Enable 'Strong' PVK encoding level (default)"},
{"pvk-weak", OPT_PVK_WEAK, '-', "Enable 'Weak' PVK encoding level"},
{"pvk-none", OPT_PVK_NONE, '-', "Don't enforce PVK encoding"},
#endif
-#ifndef OPENSSL_NO_ENGINE
- {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
-#endif
+
+ OPT_PROV_OPTIONS,
{NULL}
};
+static int try_legacy_encoding(EVP_PKEY *pkey, int outformat, int pubout,
+ BIO *out)
+{
+ int ret = 0;
+#ifndef OPENSSL_NO_DEPRECATED_3_0
+ const RSA *rsa = EVP_PKEY_get0_RSA(pkey);
+
+ if (rsa == NULL)
+ return 0;
+
+ if (outformat == FORMAT_ASN1) {
+ if (pubout == 2)
+ ret = i2d_RSAPublicKey_bio(out, rsa) > 0;
+ else
+ ret = i2d_RSA_PUBKEY_bio(out, rsa) > 0;
+ } else if (outformat == FORMAT_PEM) {
+ if (pubout == 2)
+ ret = PEM_write_bio_RSAPublicKey(out, rsa) > 0;
+ else
+ ret = PEM_write_bio_RSA_PUBKEY(out, rsa) > 0;
+# ifndef OPENSSL_NO_DSA
+ } else if (outformat == FORMAT_MSBLOB || outformat == FORMAT_PVK) {
+ ret = i2b_PublicKey_bio(out, pkey) > 0;
+# endif
+ }
+#endif
+
+ return ret;
+}
+
int rsa_main(int argc, char **argv)
{
ENGINE *e = NULL;
BIO *out = NULL;
- RSA *rsa = NULL;
- const EVP_CIPHER *enc = NULL;
- char *infile = NULL, *outfile = NULL, *prog;
+ EVP_PKEY *pkey = NULL;
+ EVP_PKEY_CTX *pctx;
+ EVP_CIPHER *enc = NULL;
+ char *infile = NULL, *outfile = NULL, *ciphername = NULL, *prog;
char *passin = NULL, *passout = NULL, *passinarg = NULL, *passoutarg = NULL;
- int i, private = 0;
- int informat = FORMAT_PEM, outformat = FORMAT_PEM, text = 0, check = 0;
+ int private = 0;
+ int informat = FORMAT_UNDEF, outformat = FORMAT_PEM, text = 0, check = 0;
int noout = 0, modulus = 0, pubin = 0, pubout = 0, ret = 1;
-#if !defined(OPENSSL_NO_DSA) && !defined(OPENSSL_NO_RC4)
- int pvk_encr = 2;
-#endif
+ int pvk_encr = DEFAULT_PVK_ENCR_STRENGTH;
OPTION_CHOICE o;
+ int traditional = 0;
+ const char *output_type = NULL;
+ const char *output_structure = NULL;
+ int selection = 0;
+ OSSL_ENCODER_CTX *ectx = NULL;
prog = opt_init(argc, argv, rsa_options);
while ((o = opt_next()) != OPT_EOF) {
@@ -126,9 +189,7 @@ int rsa_main(int argc, char **argv)
case OPT_PVK_STRONG: /* pvk_encr:= 2 */
case OPT_PVK_WEAK: /* pvk_encr:= 1 */
case OPT_PVK_NONE: /* pvk_encr:= 0 */
-#if !defined(OPENSSL_NO_DSA) && !defined(OPENSSL_NO_RC4)
pvk_encr = (o - OPT_PVK_NONE);
-#endif
break;
case OPT_NOOUT:
noout = 1;
@@ -143,15 +204,27 @@ int rsa_main(int argc, char **argv)
check = 1;
break;
case OPT_CIPHER:
- if (!opt_cipher(opt_unknown(), &enc))
- goto opthelp;
+ ciphername = opt_unknown();
+ break;
+ case OPT_PROV_CASES:
+ if (!opt_provider(o))
+ goto end;
+ break;
+ case OPT_TRADITIONAL:
+ traditional = 1;
break;
}
}
+
+ /* No extra arguments. */
argc = opt_num_rest();
if (argc != 0)
goto opthelp;
+ if (ciphername != NULL) {
+ if (!opt_cipher(ciphername, &enc))
+ goto opthelp;
+ }
private = (text && !pubin) || (!pubout && !noout) ? 1 : 0;
if (!app_passwd(passinarg, passoutarg, &passin, &passout)) {
@@ -163,34 +236,31 @@ int rsa_main(int argc, char **argv)
goto end;
}
- {
- EVP_PKEY *pkey;
+ if (pubin) {
+ int tmpformat = FORMAT_UNDEF;
- if (pubin) {
- int tmpformat = -1;
- if (pubin == 2) {
- if (informat == FORMAT_PEM)
- tmpformat = FORMAT_PEMRSA;
- else if (informat == FORMAT_ASN1)
- tmpformat = FORMAT_ASN1RSA;
- } else {
- tmpformat = informat;
- }
-
- pkey = load_pubkey(infile, tmpformat, 1, passin, e, "Public Key");
+ if (pubin == 2) {
+ if (informat == FORMAT_PEM)
+ tmpformat = FORMAT_PEMRSA;
+ else if (informat == FORMAT_ASN1)
+ tmpformat = FORMAT_ASN1RSA;
} else {
- pkey = load_key(infile, informat, 1, passin, e, "Private Key");
+ tmpformat = informat;
}
- if (pkey != NULL)
- rsa = EVP_PKEY_get1_RSA(pkey);
- EVP_PKEY_free(pkey);
+ pkey = load_pubkey(infile, tmpformat, 1, passin, e, "public key");
+ } else {
+ pkey = load_key(infile, informat, 1, passin, e, "private key");
}
- if (rsa == NULL) {
+ if (pkey == NULL) {
ERR_print_errors(bio_err);
goto end;
}
+ if (!EVP_PKEY_is_a(pkey, "RSA") && !EVP_PKEY_is_a(pkey, "RSA-PSS")) {
+ BIO_printf(bio_err, "Not an RSA key\n");
+ goto end;
+ }
out = bio_open_owner(outfile, outformat, private);
if (out == NULL)
@@ -198,7 +268,8 @@ int rsa_main(int argc, char **argv)
if (text) {
assert(pubin || private);
- if (!RSA_print(out, rsa, 0)) {
+ if ((pubin && EVP_PKEY_print_public(out, pkey, 0, NULL) <= 0)
+ || (!pubin && EVP_PKEY_print_private(out, pkey, 0, NULL) <= 0)) {
perror(outfile);
ERR_print_errors(bio_err);
goto end;
@@ -206,30 +277,34 @@ int rsa_main(int argc, char **argv)
}
if (modulus) {
- const BIGNUM *n;
- RSA_get0_key(rsa, &n, NULL, NULL);
+ BIGNUM *n = NULL;
+
+ /* Every RSA key has an 'n' */
+ EVP_PKEY_get_bn_param(pkey, "n", &n);
BIO_printf(out, "Modulus=");
BN_print(out, n);
BIO_printf(out, "\n");
+ BN_free(n);
}
if (check) {
- int r = RSA_check_key_ex(rsa, NULL);
+ int r;
+
+ pctx = EVP_PKEY_CTX_new_from_pkey(NULL, pkey, NULL);
+ if (pctx == NULL) {
+ BIO_printf(bio_err, "RSA unable to create PKEY context\n");
+ ERR_print_errors(bio_err);
+ goto end;
+ }
+ r = EVP_PKEY_check(pctx);
+ EVP_PKEY_CTX_free(pctx);
if (r == 1) {
BIO_printf(out, "RSA key ok\n");
} else if (r == 0) {
- unsigned long err;
-
- while ((err = ERR_peek_error()) != 0 &&
- ERR_GET_LIB(err) == ERR_LIB_RSA &&
- ERR_GET_FUNC(err) == RSA_F_RSA_CHECK_KEY_EX &&
- ERR_GET_REASON(err) != ERR_R_MALLOC_FAILURE) {
- BIO_printf(out, "RSA key error: %s\n",
- ERR_reason_error_string(err));
- ERR_get_error(); /* remove err from error stack */
- }
- } else if (r == -1) {
+ BIO_printf(bio_err, "RSA key not ok\n");
+ ERR_print_errors(bio_err);
+ } else if (r < 0) {
ERR_print_errors(bio_err);
goto end;
}
@@ -240,71 +315,100 @@ int rsa_main(int argc, char **argv)
goto end;
}
BIO_printf(bio_err, "writing RSA key\n");
+
+ /* Choose output type for the format */
if (outformat == FORMAT_ASN1) {
- if (pubout || pubin) {
- if (pubout == 2)
- i = i2d_RSAPublicKey_bio(out, rsa);
- else
- i = i2d_RSA_PUBKEY_bio(out, rsa);
- } else {
- assert(private);
- i = i2d_RSAPrivateKey_bio(out, rsa);
- }
+ output_type = "DER";
} else if (outformat == FORMAT_PEM) {
+ output_type = "PEM";
+ } else if (outformat == FORMAT_MSBLOB) {
+ output_type = "MSBLOB";
+ } else if (outformat == FORMAT_PVK) {
+ if (pubin) {
+ BIO_printf(bio_err, "PVK form impossible with public key input\n");
+ goto end;
+ }
+ output_type = "PVK";
+ } else {
+ BIO_printf(bio_err, "bad output format specified for outfile\n");
+ goto end;
+ }
+
+ /* Select what you want in the output */
+ if (pubout || pubin) {
+ selection = OSSL_KEYMGMT_SELECT_PUBLIC_KEY;
+ } else {
+ assert(private);
+ selection = (OSSL_KEYMGMT_SELECT_KEYPAIR
+ | OSSL_KEYMGMT_SELECT_ALL_PARAMETERS);
+ }
+
+ /* For DER based output, select the desired output structure */
+ if (outformat == FORMAT_ASN1 || outformat == FORMAT_PEM) {
if (pubout || pubin) {
if (pubout == 2)
- i = PEM_write_bio_RSAPublicKey(out, rsa);
+ output_structure = "pkcs1"; /* "type-specific" would work too */
else
- i = PEM_write_bio_RSA_PUBKEY(out, rsa);
+ output_structure = "SubjectPublicKeyInfo";
} else {
assert(private);
- i = PEM_write_bio_RSAPrivateKey(out, rsa,
- enc, NULL, 0, NULL, passout);
+ if (traditional)
+ output_structure = "pkcs1"; /* "type-specific" would work too */
+ else
+ output_structure = "PrivateKeyInfo";
}
-#ifndef OPENSSL_NO_DSA
- } else if (outformat == FORMAT_MSBLOB || outformat == FORMAT_PVK) {
- EVP_PKEY *pk;
- pk = EVP_PKEY_new();
- if (pk == NULL)
- goto end;
+ }
- EVP_PKEY_set1_RSA(pk, rsa);
- if (outformat == FORMAT_PVK) {
- if (pubin) {
- BIO_printf(bio_err, "PVK form impossible with public key input\n");
- EVP_PKEY_free(pk);
- goto end;
- }
- assert(private);
-# ifdef OPENSSL_NO_RC4
- BIO_printf(bio_err, "PVK format not supported\n");
- EVP_PKEY_free(pk);
+ /* Now, perform the encoding */
+ ectx = OSSL_ENCODER_CTX_new_for_pkey(pkey, selection,
+ output_type, output_structure,
+ NULL);
+ if (OSSL_ENCODER_CTX_get_num_encoders(ectx) == 0) {
+ if ((!pubout && !pubin)
+ || !try_legacy_encoding(pkey, outformat, pubout, out))
+ BIO_printf(bio_err, "%s format not supported\n", output_type);
+ else
+ ret = 0;
+ goto end;
+ }
+
+ /* Passphrase setup */
+ if (enc != NULL)
+ OSSL_ENCODER_CTX_set_cipher(ectx, EVP_CIPHER_get0_name(enc), NULL);
+
+ /* Default passphrase prompter */
+ if (enc != NULL || outformat == FORMAT_PVK) {
+ OSSL_ENCODER_CTX_set_passphrase_ui(ectx, get_ui_method(), NULL);
+ if (passout != NULL)
+ /* When passout given, override the passphrase prompter */
+ OSSL_ENCODER_CTX_set_passphrase(ectx,
+ (const unsigned char *)passout,
+ strlen(passout));
+ }
+
+ /* PVK is a bit special... */
+ if (outformat == FORMAT_PVK) {
+ OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
+
+ params[0] = OSSL_PARAM_construct_int("encrypt-level", &pvk_encr);
+ if (!OSSL_ENCODER_CTX_set_params(ectx, params)) {
+ BIO_printf(bio_err, "invalid PVK encryption level\n");
goto end;
-# else
- i = i2b_PVK_bio(out, pk, pvk_encr, 0, passout);
-# endif
- } else if (pubin || pubout) {
- i = i2b_PublicKey_bio(out, pk);
- } else {
- assert(private);
- i = i2b_PrivateKey_bio(out, pk);
}
- EVP_PKEY_free(pk);
-#endif
- } else {
- BIO_printf(bio_err, "bad output format specified for outfile\n");
- goto end;
}
- if (i <= 0) {
+
+ if (!OSSL_ENCODER_to_bio(ectx, out)) {
BIO_printf(bio_err, "unable to write key\n");
ERR_print_errors(bio_err);
- } else {
- ret = 0;
+ goto end;
}
+ ret = 0;
end:
+ OSSL_ENCODER_CTX_free(ectx);
release_engine(e);
BIO_free_all(out);
- RSA_free(rsa);
+ EVP_PKEY_free(pkey);
+ EVP_CIPHER_free(enc);
OPENSSL_free(passin);
OPENSSL_free(passout);
return ret;
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