vendor/heimdal/1.5

1 files changed, 121 insertions, 0 deletions

diff --git a/lib/hcrypto/dsa.c b/lib/hcrypto/dsa.c
new file mode 100644
index 000000000000..a5bdbabad165
--- /dev/null
+++ b/lib/hcrypto/dsa.c
@@ -0,0 +1,121 @@
+/*
+ * Copyright (c) 2006 Kungliga Tekniska Högskolan
+ * (Royal Institute of Technology, Stockholm, Sweden).
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the Institute nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <dsa.h>
+
+#include <roken.h>
+
+/*
+ *
+ */
+
+DSA *
+DSA_new(void)
+{
+    DSA *dsa = calloc(1, sizeof(*dsa));
+    dsa->meth = rk_UNCONST(DSA_get_default_method());
+    dsa->references = 1;
+    return dsa;
+}
+
+void
+DSA_free(DSA *dsa)
+{
+    if (dsa->references <= 0)
+	abort();
+
+    if (--dsa->references > 0)
+	return;
+
+    (*dsa->meth->finish)(dsa);
+
+#define free_if(f) if (f) { BN_free(f); }
+    free_if(dsa->p);
+    free_if(dsa->q);
+    free_if(dsa->g);
+    free_if(dsa->pub_key);
+    free_if(dsa->priv_key);
+    free_if(dsa->kinv);
+    free_if(dsa->r);
+#undef free_if
+
+    memset(dsa, 0, sizeof(*dsa));
+    free(dsa);
+
+}
+
+int
+DSA_up_ref(DSA *dsa)
+{
+    return ++dsa->references;
+}
+
+/*
+ *
+ */
+
+static const DSA_METHOD dsa_null_method = {
+    "hcrypto null DSA"
+};
+
+const DSA_METHOD *
+DSA_null_method(void)
+{
+    return &dsa_null_method;
+}
+
+
+const DSA_METHOD *dsa_default_mech = &dsa_null_method;
+
+void
+DSA_set_default_method(const DSA_METHOD *mech)
+{
+    dsa_default_mech = mech;
+}
+
+const DSA_METHOD *
+DSA_get_default_method(void)
+{
+    return dsa_default_mech;
+}
+
+int
+DSA_verify(int type, const unsigned char * digest, int digest_len,
+	   const unsigned char *sig, int sig_len, DSA *dsa)
+{
+    return -1;
+}