initially checkin

1 files changed, 45 insertions, 0 deletions

diff --git a/cipher/elgamal.h b/cipher/elgamal.h
new file mode 100644
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--- /dev/null
+++ b/cipher/elgamal.h
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+/* elgamal.h
+ *	Copyright (c) 1997 by Werner Koch (dd9jn)
+ *
+ * This file is part of G10.
+ *
+ * G10 is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * G10 is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
+ */
+#ifndef G10_ELGAMAL_H
+#define G10_ELGAMAL_H
+
+#include "mpi.h"
+
+typedef struct {
+    MPI e;	    /* exponent */
+    MPI n;	    /* modulus */
+} ELG_public_key;
+
+
+typedef struct {
+    MPI e;	    /* public exponent */
+    MPI n;	    /* public modulus */
+    MPI p;	    /* prime  p. */
+    MPI q;	    /* prime  q. */
+    MPI d;	    /* exponent */
+    MPI u;	    /* inverse of p mod q. */
+} ELG_secret_key;
+
+
+void elg_public(MPI output, MPI input, ELG_public_key *skey );
+void elg_secret(MPI output, MPI input, ELG_secret_key *skey );
+
+
+#endif /*G10_ELGAMAL_H*/