OpenSSL 1.1.1-pre2

apps/pkeyparam.c

@@ -1,5 +1,5 @@
 /*
- * Copyright 2006-2016 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 2006-2018 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
@@ -10,16 +10,18 @@
 #include <stdio.h>
 #include <string.h>
 #include "apps.h"
+#include "progs.h"
 #include <openssl/pem.h>
 #include <openssl/err.h>
 #include <openssl/evp.h>
 
 typedef enum OPTION_choice {
     OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
-    OPT_IN, OPT_OUT, OPT_TEXT, OPT_NOOUT, OPT_ENGINE
+    OPT_IN, OPT_OUT, OPT_TEXT, OPT_NOOUT,
+    OPT_ENGINE, OPT_CHECK
 } OPTION_CHOICE;
 
-OPTIONS pkeyparam_options[] = {
+const OPTIONS pkeyparam_options[] = {
     {"help", OPT_HELP, '-', "Display this summary"},
     {"in", OPT_IN, '<', "Input file"},
     {"out", OPT_OUT, '>', "Output file"},
@@ -28,6 +30,7 @@ OPTIONS pkeyparam_options[] = {
 #ifndef OPENSSL_NO_ENGINE
     {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
 #endif
+    {"check", OPT_CHECK, '-', "Check key param consistency"},
     {NULL}
 };
 
@@ -36,7 +39,7 @@ int pkeyparam_main(int argc, char **argv)
     ENGINE *e = NULL;
     BIO *in = NULL, *out = NULL;
     EVP_PKEY *pkey = NULL;
-    int text = 0, noout = 0, ret = 1;
+    int text = 0, noout = 0, ret = 1, check = 0;
     OPTION_CHOICE o;
     char *infile = NULL, *outfile = NULL, *prog;
 
@@ -67,6 +70,9 @@ int pkeyparam_main(int argc, char **argv)
         case OPT_NOOUT:
             noout = 1;
             break;
+        case OPT_CHECK:
+            check = 1;
+            break;
         }
     }
     argc = opt_num_rest();
@@ -80,12 +86,44 @@ int pkeyparam_main(int argc, char **argv)
     if (out == NULL)
         goto end;
     pkey = PEM_read_bio_Parameters(in, NULL);
-    if (!pkey) {
+    if (pkey == NULL) {
         BIO_printf(bio_err, "Error reading parameters\n");
         ERR_print_errors(bio_err);
         goto end;
     }
 
+    if (check) {
+        int r;
+        EVP_PKEY_CTX *ctx;
+
+        ctx = EVP_PKEY_CTX_new(pkey, e);
+        if (ctx == NULL) {
+            ERR_print_errors(bio_err);
+            goto end;
+        }
+
+        r = EVP_PKEY_param_check(ctx);
+
+        if (r == 1) {
+            BIO_printf(out, "Parameters are valid\n");
+        } else {
+            /*
+             * Note: at least for RSA keys if this function returns
+             * -1, there will be no error reasons.
+             */
+            unsigned long err;
+
+            BIO_printf(out, "Parameters are invalid\n");
+
+            while ((err = ERR_peek_error()) != 0) {
+                BIO_printf(out, "Detailed error: %s\n",
+                           ERR_reason_error_string(err));
+                ERR_get_error(); /* remove err from error stack */
+            }
+        }
+        EVP_PKEY_CTX_free(ctx);
+    }
+
     if (!noout)
         PEM_write_bio_Parameters(out, pkey);