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diff --git a/security/nss/lib/freebl/mpi/mplogic.h b/security/nss/lib/freebl/mpi/mplogic.h
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+/*
+ *  mplogic.h
+ *
+ *  Bitwise logical operations on MPI values
+ *
+ * The contents of this file are subject to the Mozilla Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ *
+ * The Original Code is the MPI Arbitrary Precision Integer Arithmetic
+ * library.
+ *
+ * The Initial Developer of the Original Code is Michael J. Fromberger.
+ * Portions created by Michael J. Fromberger are 
+ * Copyright (C) 1998, 1999, 2000 Michael J. Fromberger. 
+ * All Rights Reserved.
+ *
+ * Contributor(s):
+ *
+ * Alternatively, the contents of this file may be used under the
+ * terms of the GNU General Public License Version 2 or later (the
+ * "GPL"), in which case the provisions of the GPL are applicable
+ * instead of those above.  If you wish to allow use of your
+ * version of this file only under the terms of the GPL and not to
+ * allow others to use your version of this file under the MPL,
+ * indicate your decision by deleting the provisions above and
+ * replace them with the notice and other provisions required by
+ * the GPL.  If you do not delete the provisions above, a recipient
+ * may use your version of this file under either the MPL or the GPL.
+ *
+ *  $Id$
+ */
+
+#ifndef _H_MPLOGIC_
+#define _H_MPLOGIC_
+
+#include "mpi.h"
+
+/*
+  The logical operations treat an mp_int as if it were a bit vector,
+  without regard to its sign (an mp_int is represented in a signed
+  magnitude format).  Values are treated as if they had an infinite
+  string of zeros left of the most-significant bit.
+ */
+
+/* Parity results                    */
+
+#define MP_EVEN       MP_YES
+#define MP_ODD        MP_NO
+
+/* Bitwise functions                 */
+
+mp_err mpl_not(mp_int *a, mp_int *b);            /* one's complement  */
+mp_err mpl_and(mp_int *a, mp_int *b, mp_int *c); /* bitwise AND       */
+mp_err mpl_or(mp_int *a, mp_int *b, mp_int *c);  /* bitwise OR        */
+mp_err mpl_xor(mp_int *a, mp_int *b, mp_int *c); /* bitwise XOR       */
+
+/* Shift functions                   */
+
+mp_err mpl_rsh(const mp_int *a, mp_int *b, mp_digit d);   /* right shift    */
+mp_err mpl_lsh(const mp_int *a, mp_int *b, mp_digit d);   /* left shift     */
+
+/* Bit count and parity              */
+
+mp_err mpl_num_set(mp_int *a, int *num);         /* count set bits    */
+mp_err mpl_num_clear(mp_int *a, int *num);       /* count clear bits  */
+mp_err mpl_parity(mp_int *a);                    /* determine parity  */
+
+/* Get & Set the value of a bit */
+
+mp_err mpl_set_bit(mp_int *a, mp_size bitNum, mp_size value);
+mp_err mpl_get_bit(const mp_int *a, mp_size bitNum);
+mp_err mpl_get_bits(const mp_int *a, mp_size lsbNum, mp_size numBits);
+mp_err mpl_significant_bits(const mp_int *a);
+
+#endif /* end _H_MPLOGIC_ */