From 14c7f45cdae826f88dc539c8c38dd95caf305731 Mon Sep 17 00:00:00 2001
From: Maurus Cuelenaere <mcuelenaere@gmail.com>
Date: Fri, 11 Jul 2008 15:50:46 +0000
Subject: Add zook's ZenUtils to SVN

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18010 a1c6a512-1295-4272-9138-f99709370657
---
 .../libraries/beecrypt-4.1.2/beecrypt/rsa.h        | 121 +++++++++++++++++++++
 1 file changed, 121 insertions(+)
 create mode 100755 utils/zenutils/libraries/beecrypt-4.1.2/beecrypt/rsa.h

(limited to 'utils/zenutils/libraries/beecrypt-4.1.2/beecrypt/rsa.h')

diff --git a/utils/zenutils/libraries/beecrypt-4.1.2/beecrypt/rsa.h b/utils/zenutils/libraries/beecrypt-4.1.2/beecrypt/rsa.h
new file mode 100755
index 0000000000..dbb0e45412
--- /dev/null
+++ b/utils/zenutils/libraries/beecrypt-4.1.2/beecrypt/rsa.h
@@ -0,0 +1,121 @@
+/*
+ * Copyright (c) 2000, 2002 Virtual Unlimited B.V.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+/*!\file rsa.h
+ * \brief RSA algorithm.
+ * \author Bob Deblier <bob.deblier@pandora.be>
+ * \ingroup IF_m IF_rsa_m
+ */
+
+#ifndef _RSA_H
+#define _RSA_H
+
+#include "beecrypt/rsakp.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*!\fn int rsapub(const mpbarrett* n, const mpnumber* e, const mpnumber* m, mpnumber* c)
+ * \brief This function performs a raw RSA public key operation.
+ *
+ * This function can be used for encryption and verifying.
+ *
+ * It performs the following operation:
+ * \li \f$c=m^{e}\ \textrm{mod}\ n\f$
+ *
+ * \param n The RSA modulus.
+ * \param e The RSA public exponent.
+ * \param m The message.
+ * \param c The ciphertext.
+ * \retval 0 on success.
+ * \retval -1 on failure.
+ */
+BEECRYPTAPI
+int rsapub(const mpbarrett* n, const mpnumber* e,
+           const mpnumber* m, mpnumber* c);
+
+/*!\fn int rsapri(const mpbarrett* n, const mpnumber* d, const mpnumber* c, mpnumber* m)
+ * \brief This function performs a raw RSA private key operation.
+ *
+ * This function can be used for decryption and signing.
+ *
+ * It performs the operation:
+ * \li \f$m=c^{d}\ \textrm{mod}\ n\f$
+ *
+ * \param n The RSA modulus.
+ * \param d The RSA private exponent.
+ * \param c The ciphertext.
+ * \param m The message.
+ * \retval 0 on success.
+ * \retval -1 on failure.
+ */
+BEECRYPTAPI
+int rsapri(const mpbarrett* n, const mpnumber* d,
+           const mpnumber* c, mpnumber* m);
+
+/*!\fn int rsapricrt(const mpbarrett* n, const mpbarrett* p, const mpbarrett* q, const mpnumber* dp, const mpnumber* dq, const mpnumber* qi, const mpnumber* c, mpnumber* m)
+ *
+ * \brief This function performs a raw RSA private key operation, with
+ *  application of the Chinese Remainder Theorem.
+ *
+ * It performs the operation:
+ * \li \f$j_1=c^{dp}\ \textrm{mod}\ p\f$
+ * \li \f$j_2=c^{dq}\ \textrm{mod}\ q\f$
+ * \li \f$h=qi \cdot (j_1-j_2)\ \textrm{mod}\ p\f$
+ * \li \f$m=j_2+hq\f$
+ *
+ * \param n The RSA modulus.
+ * \param p The first RSA prime factor.
+ * \param q The second RSA prime factor.
+ * \param dp
+ * \param dq
+ * \param qi
+ * \param c The ciphertext.
+ * \param m The message.
+ * \retval 0 on success.
+ * \retval -1 on failure.
+ */
+BEECRYPTAPI
+int rsapricrt(const mpbarrett* n, const mpbarrett* p, const mpbarrett* q,
+              const mpnumber* dp, const mpnumber* dq, const mpnumber* qi,
+              const mpnumber* c, mpnumber* m);
+
+/*!\fn int rsavrfy(const mpbarrett* n, const mpnumber* e, const mpnumber* m, const mpnumber* c)
+ * \brief This function performs a raw RSA verification.
+ *
+ * It verifies if ciphertext \a c was encrypted from cleartext \a m
+ * with the private key matching the given public key \a (n, e).
+ *
+ * \param n The RSA modulus.
+ * \param e The RSA public exponent.
+ * \param m The cleartext message.
+ * \param c The ciphertext message.
+ * \retval 1 on success.
+ * \retval 0 on failure.
+ */
+BEECRYPTAPI
+int rsavrfy(const mpbarrett* n, const mpnumber* e,
+            const mpnumber* m, const mpnumber* c);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
-- 
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