Make PKCS8_PRIV_KEY_INFO opaque.

[openssl.git] / apps / pkeyutl.c

diff --git a/apps/pkeyutl.c b/apps/pkeyutl.c
index 5a2827b3997a96ee82061e0332d4e8bb10a9ca1c..fe7f5861199d8af0c2da8ac374069263c045d7eb 100644 (file)
--- a/apps/pkeyutl.c
+++ b/apps/pkeyutl.c
@@ -62,11 +62,12 @@
 #include <openssl/pem.h>
 #include <openssl/evp.h>
 
+#define KEY_NONE        0
 #define KEY_PRIVKEY     1
 #define KEY_PUBKEY      2
 #define KEY_CERT        3
 
-static EVP_PKEY_CTX *init_ctx(int *pkeysize,
+static EVP_PKEY_CTX *init_ctx(const char *kdfalg, int *pkeysize,
                               const char *keyfile, int keyform, int key_type,
                               char *passinarg, int pkey_op, ENGINE *e,
                               const int impl);
@@ -84,7 +85,7 @@ typedef enum OPTION_choice {
     OPT_PUBIN, OPT_CERTIN, OPT_ASN1PARSE, OPT_HEXDUMP, OPT_SIGN,
     OPT_VERIFY, OPT_VERIFYRECOVER, OPT_REV, OPT_ENCRYPT, OPT_DECRYPT,
     OPT_DERIVE, OPT_SIGFILE, OPT_INKEY, OPT_PEERKEY, OPT_PASSIN,
-    OPT_PEERFORM, OPT_KEYFORM, OPT_PKEYOPT
+    OPT_PEERFORM, OPT_KEYFORM, OPT_PKEYOPT, OPT_KDF, OPT_KDFLEN
 } OPTION_CHOICE;
 
 OPTIONS pkeyutl_options[] = {
@@ -103,6 +104,8 @@ OPTIONS pkeyutl_options[] = {
     {"encrypt", OPT_ENCRYPT, '-', "Encrypt input data with public key"},
     {"decrypt", OPT_DECRYPT, '-', "Decrypt input data with private key"},
     {"derive", OPT_DERIVE, '-', "Derive shared secret"},
+    {"kdf", OPT_KDF, 's', "Use KDF algorithm"},
+    {"kdflen", OPT_KDFLEN, 'p', "KDF algorithm output length"},
     {"sigfile", OPT_SIGFILE, '<', "Signature file (verify operation only)"},
     {"inkey", OPT_INKEY, 's', "Input private key file"},
     {"peerkey", OPT_PEERKEY, 's', "Peer key file used in key derivation"},
@@ -135,6 +138,8 @@ int pkeyutl_main(int argc, char **argv)
     size_t buf_outlen;
     const char *inkey = NULL;
     const char *peerkey = NULL;
+    const char *kdfalg = NULL;
+    int kdflen = 0;
     STACK_OF(OPENSSL_STRING) *pkeyopts = NULL;
 
     prog = opt_init(argc, argv, pkeyutl_options);
@@ -211,13 +216,21 @@ int pkeyutl_main(int argc, char **argv)
         case OPT_DERIVE:
             pkey_op = EVP_PKEY_OP_DERIVE;
             break;
+        case OPT_KDF:
+            pkey_op = EVP_PKEY_OP_DERIVE;
+            key_type = KEY_NONE;
+            kdfalg = opt_arg();
+            break;
+        case OPT_KDFLEN:
+            kdflen = atoi(opt_arg());
+            break;
         case OPT_REV:
             rev = 1;
             break;
         case OPT_PKEYOPT:
             if ((pkeyopts == NULL &&
                  (pkeyopts = sk_OPENSSL_STRING_new_null()) == NULL) ||
-                sk_OPENSSL_STRING_push(pkeyopts, *++argv) == 0) {
+                sk_OPENSSL_STRING_push(pkeyopts, opt_arg()) == 0) {
                 BIO_puts(bio_err, "out of memory\n");
                 goto end;
             }
@@ -225,13 +238,17 @@ int pkeyutl_main(int argc, char **argv)
         }
     }
     argc = opt_num_rest();
-    argv = opt_rest();
-
-    if (inkey == NULL ||
-        (peerkey != NULL && pkey_op != EVP_PKEY_OP_DERIVE))
+    if (argc != 0)
         goto opthelp;
 
-    ctx = init_ctx(&keysize, inkey, keyform, key_type,
+    if (kdfalg != NULL) {
+        if (kdflen == 0)
+            goto opthelp;
+    } else if ((inkey == NULL)
+            || (peerkey != NULL && pkey_op != EVP_PKEY_OP_DERIVE)) {
+        goto opthelp;
+    }
+    ctx = init_ctx(kdfalg, &keysize, inkey, keyform, key_type,
                    passinarg, pkey_op, e, engine_impl);
     if (ctx == NULL) {
         BIO_printf(bio_err, "%s: Error initializing context\n", prog);
@@ -325,15 +342,21 @@ int pkeyutl_main(int argc, char **argv)
             BIO_puts(out, "Signature Verification Failure\n");
         goto end;
     }
-    rv = do_keyop(ctx, pkey_op, NULL, (size_t *)&buf_outlen,
-                  buf_in, (size_t)buf_inlen);
+    if (kdflen != 0) {
+        buf_outlen = kdflen;
+        rv = 1;
+    } else {
+        rv = do_keyop(ctx, pkey_op, NULL, (size_t *)&buf_outlen,
+                      buf_in, (size_t)buf_inlen);
+    }
     if (rv > 0 && buf_outlen != 0) {
         buf_out = app_malloc(buf_outlen, "buffer output");
         rv = do_keyop(ctx, pkey_op,
                       buf_out, (size_t *)&buf_outlen,
                       buf_in, (size_t)buf_inlen);
     }
-    if (rv < 0) {
+    if (rv <= 0) {
+        BIO_puts(bio_err, "Public Key operation error\n");
         ERR_print_errors(bio_err);
         goto end;
     }
@@ -358,7 +381,7 @@ int pkeyutl_main(int argc, char **argv)
     return ret;
 }
 
-static EVP_PKEY_CTX *init_ctx(int *pkeysize,
+static EVP_PKEY_CTX *init_ctx(const char *kdfalg, int *pkeysize,
                               const char *keyfile, int keyform, int key_type,
                               char *passinarg, int pkey_op, ENGINE *e,
                               const int engine_impl)
@@ -371,7 +394,7 @@ static EVP_PKEY_CTX *init_ctx(int *pkeysize,
     X509 *x;
     if (((pkey_op == EVP_PKEY_OP_SIGN) || (pkey_op == EVP_PKEY_OP_DECRYPT)
          || (pkey_op == EVP_PKEY_OP_DERIVE))
-        && (key_type != KEY_PRIVKEY)) {
+        && (key_type != KEY_PRIVKEY && kdfalg == NULL)) {
         BIO_printf(bio_err, "A private key is needed for this operation\n");
         goto end;
     }
@@ -389,28 +412,35 @@ static EVP_PKEY_CTX *init_ctx(int *pkeysize,
         break;
 
     case KEY_CERT:
-        x = load_cert(keyfile, keyform, NULL, e, "Certificate");
+        x = load_cert(keyfile, keyform, "Certificate");
         if (x) {
             pkey = X509_get_pubkey(x);
             X509_free(x);
         }
         break;
 
-    }
-
-    *pkeysize = EVP_PKEY_size(pkey);
+    case KEY_NONE:
+        break;
 
-    if (!pkey)
-        goto end;
+    }
 
 #ifndef OPENSSL_NO_ENGINE
     if (engine_impl)
         impl = e;
 #endif
-    
-    ctx = EVP_PKEY_CTX_new(pkey, impl);
 
-    EVP_PKEY_free(pkey);
+    if (kdfalg) {
+        int kdfnid = OBJ_sn2nid(kdfalg);
+        if (kdfnid == NID_undef)
+            goto end;
+        ctx = EVP_PKEY_CTX_new_id(kdfnid, impl);
+    } else {
+        if (pkey == NULL)
+            goto end;
+        *pkeysize = EVP_PKEY_size(pkey);
+        ctx = EVP_PKEY_CTX_new(pkey, impl);
+        EVP_PKEY_free(pkey);
+    }
 
     if (ctx == NULL)
         goto end;