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Merge pull request #2507 from kamtom480/circuitpython-mkspk

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Add mkspk source files
This commit is contained in:
Scott Shawcroft 2020-01-14 12:05:36 -08:00 committed by GitHub
commit b5df5ce1ce
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GPG Key ID: 4AEE18F83AFDEB23
8 changed files with 1110 additions and 4 deletions
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1
conf.py
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@ -125,6 +125,7 @@ exclude_patterns = ["**/build*",
"ports/cc3200", "ports/cc3200",
"ports/cc3200/FreeRTOS", "ports/cc3200/FreeRTOS",
"ports/cc3200/hal", "ports/cc3200/hal",
"ports/cxd56/mkspk",
"ports/cxd56/spresense-exported-sdk", "ports/cxd56/spresense-exported-sdk",
"ports/esp32", "ports/esp32",
"ports/esp8266/boards", "ports/esp8266/boards",

11
ports/cxd56/Makefile
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@ -67,13 +67,13 @@ PLATFORM := $(firstword $(subst _, ,$(shell uname -s 2>/dev/null)))
ifeq ($(PLATFORM),Darwin) ifeq ($(PLATFORM),Darwin)
# macOS # macOS
MKSPK = $(SPRESENSE_SDK)/sdk/tools/macos/mkspk MKSPK = mkspk/mkspk
else ifeq ($(PLATFORM),Linux) else ifeq ($(PLATFORM),Linux)
# Linux # Linux
MKSPK = $(SPRESENSE_SDK)/sdk/tools/linux/mkspk MKSPK = mkspk/mkspk
else else
# Cygwin/MSYS2 # Cygwin/MSYS2
MKSPK = $(SPRESENSE_SDK)/sdk/tools/windows/mkspk.exe MKSPK = mkspk/mkspk.exe
endif endif
SERIAL ?= /dev/ttyUSB0 SERIAL ?= /dev/ttyUSB0
@ -201,7 +201,10 @@ $(BUILD)/firmware.elf: $(BUILD)/libmpy.a
$(ECHO) "LD $@" $(ECHO) "LD $@"
$(Q)$(LD) $(LDFLAGS) $(Q)$(LD) $(LDFLAGS)
$(BUILD)/firmware.spk: $(BUILD)/firmware.elf $(MKSPK):
$(MAKE) -C mkspk
$(BUILD)/firmware.spk: $(BUILD)/firmware.elf $(MKSPK)
$(ECHO) "Creating $@" $(ECHO) "Creating $@"
$(MKSPK) -c 2 $(BUILD)/firmware.elf nuttx $(BUILD)/firmware.spk $(MKSPK) -c 2 $(BUILD)/firmware.elf nuttx $(BUILD)/firmware.spk

3
ports/cxd56/mkspk/.gitignore vendored Normal file
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@ -0,0 +1,3 @@
/mkspk
/mkspk.exe

51
ports/cxd56/mkspk/Makefile Normal file
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@ -0,0 +1,51 @@
############################################################################
# tools/mkspk/Makefile
#
# Copyright (C) 2011-2012 Gregory Nutt. All rights reserved.
# Author: Gregory Nutt <gnutt@nuttx.org>
#
# 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 NuttX 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 COPYRIGHT HOLDERS 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
# COPYRIGHT OWNER 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.
#
############################################################################
all: mkspk
default: mkspk
.PHONY: clean
# Add CFLAGS=-g on the make command line to build debug versions
CFLAGS = -O2 -Wall -I.
# mkspk - Convert nuttx.hex image to nuttx.spk image
mkspk:
@gcc $(CFLAGS) -o mkspk mkspk.c clefia.c
clean:
@rm -f *.o *.a *.dSYM *~ .*.swp
@rm -f mkspk mkspk.exe

517
ports/cxd56/mkspk/clefia.c Normal file
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@ -0,0 +1,517 @@
/****************************************************************************
* tools/cxd56/clefia.c
*
* Copyright (C) 2007, 2008 Sony Corporation
*
* 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 NuttX 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 COPYRIGHT HOLDERS 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
* COPYRIGHT OWNER 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.
*****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdint.h>
#include <assert.h>
#include "clefia.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
#define clefiamul4(_x) (clefiamul2(clefiamul2((_x))))
#define clefiamul6(_x) (clefiamul2((_x)) ^ clefiamul4((_x)))
#define clefiamul8(_x) (clefiamul2(clefiamul4((_x))))
#define clefiamula(_x) (clefiamul2((_x)) ^ clefiamul8((_x)))
/****************************************************************************
* Private Data
****************************************************************************/
/* S0 (8-bit S-box based on four 4-bit S-boxes) */
static const unsigned char clefia_s0[256] =
{
0x57u, 0x49u, 0xd1u, 0xc6u, 0x2fu, 0x33u, 0x74u, 0xfbu,
0x95u, 0x6du, 0x82u, 0xeau, 0x0eu, 0xb0u, 0xa8u, 0x1cu,
0x28u, 0xd0u, 0x4bu, 0x92u, 0x5cu, 0xeeu, 0x85u, 0xb1u,
0xc4u, 0x0au, 0x76u, 0x3du, 0x63u, 0xf9u, 0x17u, 0xafu,
0xbfu, 0xa1u, 0x19u, 0x65u, 0xf7u, 0x7au, 0x32u, 0x20u,
0x06u, 0xceu, 0xe4u, 0x83u, 0x9du, 0x5bu, 0x4cu, 0xd8u,
0x42u, 0x5du, 0x2eu, 0xe8u, 0xd4u, 0x9bu, 0x0fu, 0x13u,
0x3cu, 0x89u, 0x67u, 0xc0u, 0x71u, 0xaau, 0xb6u, 0xf5u,
0xa4u, 0xbeu, 0xfdu, 0x8cu, 0x12u, 0x00u, 0x97u, 0xdau,
0x78u, 0xe1u, 0xcfu, 0x6bu, 0x39u, 0x43u, 0x55u, 0x26u,
0x30u, 0x98u, 0xccu, 0xddu, 0xebu, 0x54u, 0xb3u, 0x8fu,
0x4eu, 0x16u, 0xfau, 0x22u, 0xa5u, 0x77u, 0x09u, 0x61u,
0xd6u, 0x2au, 0x53u, 0x37u, 0x45u, 0xc1u, 0x6cu, 0xaeu,
0xefu, 0x70u, 0x08u, 0x99u, 0x8bu, 0x1du, 0xf2u, 0xb4u,
0xe9u, 0xc7u, 0x9fu, 0x4au, 0x31u, 0x25u, 0xfeu, 0x7cu,
0xd3u, 0xa2u, 0xbdu, 0x56u, 0x14u, 0x88u, 0x60u, 0x0bu,
0xcdu, 0xe2u, 0x34u, 0x50u, 0x9eu, 0xdcu, 0x11u, 0x05u,
0x2bu, 0xb7u, 0xa9u, 0x48u, 0xffu, 0x66u, 0x8au, 0x73u,
0x03u, 0x75u, 0x86u, 0xf1u, 0x6au, 0xa7u, 0x40u, 0xc2u,
0xb9u, 0x2cu, 0xdbu, 0x1fu, 0x58u, 0x94u, 0x3eu, 0xedu,
0xfcu, 0x1bu, 0xa0u, 0x04u, 0xb8u, 0x8du, 0xe6u, 0x59u,
0x62u, 0x93u, 0x35u, 0x7eu, 0xcau, 0x21u, 0xdfu, 0x47u,
0x15u, 0xf3u, 0xbau, 0x7fu, 0xa6u, 0x69u, 0xc8u, 0x4du,
0x87u, 0x3bu, 0x9cu, 0x01u, 0xe0u, 0xdeu, 0x24u, 0x52u,
0x7bu, 0x0cu, 0x68u, 0x1eu, 0x80u, 0xb2u, 0x5au, 0xe7u,
0xadu, 0xd5u, 0x23u, 0xf4u, 0x46u, 0x3fu, 0x91u, 0xc9u,
0x6eu, 0x84u, 0x72u, 0xbbu, 0x0du, 0x18u, 0xd9u, 0x96u,
0xf0u, 0x5fu, 0x41u, 0xacu, 0x27u, 0xc5u, 0xe3u, 0x3au,
0x81u, 0x6fu, 0x07u, 0xa3u, 0x79u, 0xf6u, 0x2du, 0x38u,
0x1au, 0x44u, 0x5eu, 0xb5u, 0xd2u, 0xecu, 0xcbu, 0x90u,
0x9au, 0x36u, 0xe5u, 0x29u, 0xc3u, 0x4fu, 0xabu, 0x64u,
0x51u, 0xf8u, 0x10u, 0xd7u, 0xbcu, 0x02u, 0x7du, 0x8eu
};
/* S1 (8-bit S-box based on inverse function) */
static const unsigned char clefia_s1[256] =
{
0x6cu, 0xdau, 0xc3u, 0xe9u, 0x4eu, 0x9du, 0x0au, 0x3du,
0xb8u, 0x36u, 0xb4u, 0x38u, 0x13u, 0x34u, 0x0cu, 0xd9u,
0xbfu, 0x74u, 0x94u, 0x8fu, 0xb7u, 0x9cu, 0xe5u, 0xdcu,
0x9eu, 0x07u, 0x49u, 0x4fu, 0x98u, 0x2cu, 0xb0u, 0x93u,
0x12u, 0xebu, 0xcdu, 0xb3u, 0x92u, 0xe7u, 0x41u, 0x60u,
0xe3u, 0x21u, 0x27u, 0x3bu, 0xe6u, 0x19u, 0xd2u, 0x0eu,
0x91u, 0x11u, 0xc7u, 0x3fu, 0x2au, 0x8eu, 0xa1u, 0xbcu,
0x2bu, 0xc8u, 0xc5u, 0x0fu, 0x5bu, 0xf3u, 0x87u, 0x8bu,
0xfbu, 0xf5u, 0xdeu, 0x20u, 0xc6u, 0xa7u, 0x84u, 0xceu,
0xd8u, 0x65u, 0x51u, 0xc9u, 0xa4u, 0xefu, 0x43u, 0x53u,
0x25u, 0x5du, 0x9bu, 0x31u, 0xe8u, 0x3eu, 0x0du, 0xd7u,
0x80u, 0xffu, 0x69u, 0x8au, 0xbau, 0x0bu, 0x73u, 0x5cu,
0x6eu, 0x54u, 0x15u, 0x62u, 0xf6u, 0x35u, 0x30u, 0x52u,
0xa3u, 0x16u, 0xd3u, 0x28u, 0x32u, 0xfau, 0xaau, 0x5eu,
0xcfu, 0xeau, 0xedu, 0x78u, 0x33u, 0x58u, 0x09u, 0x7bu,
0x63u, 0xc0u, 0xc1u, 0x46u, 0x1eu, 0xdfu, 0xa9u, 0x99u,
0x55u, 0x04u, 0xc4u, 0x86u, 0x39u, 0x77u, 0x82u, 0xecu,
0x40u, 0x18u, 0x90u, 0x97u, 0x59u, 0xddu, 0x83u, 0x1fu,
0x9au, 0x37u, 0x06u, 0x24u, 0x64u, 0x7cu, 0xa5u, 0x56u,
0x48u, 0x08u, 0x85u, 0xd0u, 0x61u, 0x26u, 0xcau, 0x6fu,
0x7eu, 0x6au, 0xb6u, 0x71u, 0xa0u, 0x70u, 0x05u, 0xd1u,
0x45u, 0x8cu, 0x23u, 0x1cu, 0xf0u, 0xeeu, 0x89u, 0xadu,
0x7au, 0x4bu, 0xc2u, 0x2fu, 0xdbu, 0x5au, 0x4du, 0x76u,
0x67u, 0x17u, 0x2du, 0xf4u, 0xcbu, 0xb1u, 0x4au, 0xa8u,
0xb5u, 0x22u, 0x47u, 0x3au, 0xd5u, 0x10u, 0x4cu, 0x72u,
0xccu, 0x00u, 0xf9u, 0xe0u, 0xfdu, 0xe2u, 0xfeu, 0xaeu,
0xf8u, 0x5fu, 0xabu, 0xf1u, 0x1bu, 0x42u, 0x81u, 0xd6u,
0xbeu, 0x44u, 0x29u, 0xa6u, 0x57u, 0xb9u, 0xafu, 0xf2u,
0xd4u, 0x75u, 0x66u, 0xbbu, 0x68u, 0x9fu, 0x50u, 0x02u,
0x01u, 0x3cu, 0x7fu, 0x8du, 0x1au, 0x88u, 0xbdu, 0xacu,
0xf7u, 0xe4u, 0x79u, 0x96u, 0xa2u, 0xfcu, 0x6du, 0xb2u,
0x6bu, 0x03u, 0xe1u, 0x2eu, 0x7du, 0x14u, 0x95u, 0x1du
};
/****************************************************************************
* Private Functions
****************************************************************************/
static void bytecpy(unsigned char *dst, const unsigned char *src, int bytelen)
{
while (bytelen-- > 0)
{
*dst++ = *src++;
}
}
static unsigned char clefiamul2(unsigned char x)
{
/* multiplication over GF(2^8) (p(x) = '11d') */
if (x & 0x80u)
{
x ^= 0x0eu;
}
return ((x << 1) | (x >> 7));
}
static void clefiaf0xor(unsigned char *dst, const unsigned char *src,
const unsigned char *rk)
{
unsigned char x[4];
unsigned char y[4];
unsigned char z[4];
/* F0 */
/* Key addition */
bytexor(x, src, rk, 4);
/* Substitution layer */
z[0] = clefia_s0[x[0]];
z[1] = clefia_s1[x[1]];
z[2] = clefia_s0[x[2]];
z[3] = clefia_s1[x[3]];
/* Diffusion layer (M0) */
y[0] = z[0] ^ clefiamul2(z[1]) ^ clefiamul4(z[2]) ^ clefiamul6(z[3]);
y[1] = clefiamul2(z[0]) ^ z[1] ^ clefiamul6(z[2]) ^ clefiamul4(z[3]);
y[2] = clefiamul4(z[0]) ^ clefiamul6(z[1]) ^ z[2] ^ clefiamul2(z[3]);
y[3] = clefiamul6(z[0]) ^ clefiamul4(z[1]) ^ clefiamul2(z[2]) ^ z[3];
/* Xoring after F0 */
bytecpy(dst + 0, src + 0, 4);
bytexor(dst + 4, src + 4, y, 4);
}
static void clefiaf1xor(unsigned char *dst, const unsigned char *src,
const unsigned char *rk)
{
unsigned char x[4];
unsigned char y[4];
unsigned char z[4];
/* F1 */
/* Key addition */
bytexor(x, src, rk, 4);
/* Substitution layer */
z[0] = clefia_s1[x[0]];
z[1] = clefia_s0[x[1]];
z[2] = clefia_s1[x[2]];
z[3] = clefia_s0[x[3]];
/* Diffusion layer (M1) */
y[0] = z[0] ^ clefiamul8(z[1]) ^ clefiamul2(z[2]) ^ clefiamula(z[3]);
y[1] = clefiamul8(z[0]) ^ z[1] ^ clefiamula(z[2]) ^ clefiamul2(z[3]);
y[2] = clefiamul2(z[0]) ^ clefiamula(z[1]) ^ z[2] ^ clefiamul8(z[3]);
y[3] = clefiamula(z[0]) ^ clefiamul2(z[1]) ^ clefiamul8(z[2]) ^ z[3];
/* Xoring after F1 */
bytecpy(dst + 0, src + 0, 4);
bytexor(dst + 4, src + 4, y, 4);
}
static void clefiagfn4(unsigned char *y, const unsigned char *x,
const unsigned char *rk, int r)
{
unsigned char fin[16];
unsigned char fout[16];
bytecpy(fin, x, 16);
while (r-- > 0)
{
clefiaf0xor(fout + 0, fin + 0, rk + 0);
clefiaf1xor(fout + 8, fin + 8, rk + 4);
rk += 8;
if (r)
{
/* swapping for encryption */
bytecpy(fin + 0, fout + 4, 12);
bytecpy(fin + 12, fout + 0, 4);
}
}
bytecpy(y, fout, 16);
}
#if 0 /* Not used */
static void clefiagfn8(unsigned char *y, const unsigned char *x,
const unsigned char *rk, int r)
{
unsigned char fin[32];
unsigned char fout[32];
bytecpy(fin, x, 32);
while (r-- > 0)
{
clefiaf0xor(fout + 0, fin + 0, rk + 0);
clefiaf1xor(fout + 8, fin + 8, rk + 4);
clefiaf0xor(fout + 16, fin + 16, rk + 8);
clefiaf1xor(fout + 24, fin + 24, rk + 12);
rk += 16;
if (r)
{
/* swapping for encryption */
bytecpy(fin + 0, fout + 4, 28);
bytecpy(fin + 28, fout + 0, 4);
}
}
bytecpy(y, fout, 32);
}
#endif
#if 0 /* Not used */
static void clefiagfn4inv(unsigned char *y, const unsigned char *x,
const unsigned char *rk, int r)
{
unsigned char fin[16];
unsigned char fout[16];
rk += (r - 1) * 8;
bytecpy(fin, x, 16);
while (r-- > 0)
{
clefiaf0xor(fout + 0, fin + 0, rk + 0);
clefiaf1xor(fout + 8, fin + 8, rk + 4);
rk -= 8;
if (r)
{
/* swapping for decryption */
bytecpy(fin + 0, fout + 12, 4);
bytecpy(fin + 4, fout + 0, 12);
}
}
bytecpy(y, fout, 16);
}
#endif
static void clefiadoubleswap(unsigned char *lk)
{
unsigned char t[16];
t[0] = (lk[0] << 7) | (lk[1] >> 1);
t[1] = (lk[1] << 7) | (lk[2] >> 1);
t[2] = (lk[2] << 7) | (lk[3] >> 1);
t[3] = (lk[3] << 7) | (lk[4] >> 1);
t[4] = (lk[4] << 7) | (lk[5] >> 1);
t[5] = (lk[5] << 7) | (lk[6] >> 1);
t[6] = (lk[6] << 7) | (lk[7] >> 1);
t[7] = (lk[7] << 7) | (lk[15] & 0x7fu);
t[8] = (lk[8] >> 7) | (lk[0] & 0xfeu);
t[9] = (lk[9] >> 7) | (lk[8] << 1);
t[10] = (lk[10] >> 7) | (lk[9] << 1);
t[11] = (lk[11] >> 7) | (lk[10] << 1);
t[12] = (lk[12] >> 7) | (lk[11] << 1);
t[13] = (lk[13] >> 7) | (lk[12] << 1);
t[14] = (lk[14] >> 7) | (lk[13] << 1);
t[15] = (lk[15] >> 7) | (lk[14] << 1);
bytecpy(lk, t, 16);
}
static void clefiaconset(unsigned char *con, const unsigned char *iv, int lk)
{
unsigned char t[2];
unsigned char tmp;
bytecpy(t, iv, 2);
while (lk-- > 0)
{
con[0] = t[0] ^ 0xb7u; /* P_16 = 0xb7e1 (natural logarithm) */
con[1] = t[1] ^ 0xe1u;
con[2] = ~((t[0] << 1) | (t[1] >> 7));
con[3] = ~((t[1] << 1) | (t[0] >> 7));
con[4] = ~t[0] ^ 0x24u; /* Q_16 = 0x243f (circle ratio) */
con[5] = ~t[1] ^ 0x3fu;
con[6] = t[1];
con[7] = t[0];
con += 8;
/* updating T */
if (t[1] & 0x01u)
{
t[0] ^= 0xa8u;
t[1] ^= 0x30u;
}
tmp = t[0] << 7;
t[0] = (t[0] >> 1) | (t[1] << 7);
t[1] = (t[1] >> 1) | tmp;
}
}
static void left_shift_one(uint8_t * in, uint8_t * out)
{
int i;
int overflow;
overflow = 0;
for (i = 15; i >= 0; i--)
{
out[i] = in[i] << 1;
out[i] |= overflow;
overflow = (in[i] >> 7) & 1;
}
}
static void gen_subkey(struct cipher *c)
{
uint8_t L[16];
memset(L, 0, 16);
clefiaencrypt(L, L, c->rk, c->round);
left_shift_one(L, c->k1);
if (L[0] & 0x80)
{
c->k1[15] = c->k1[15] ^ 0x87;
}
left_shift_one(c->k1, c->k2);
if (c->k1[0] & 0x80)
{
c->k2[15] = c->k2[15] ^ 0x87;
}
memset(L, 0, 16);
}
/****************************************************************************
* Public Functions
****************************************************************************/
struct cipher *cipher_init(uint8_t * key, uint8_t * iv)
{
struct cipher *c;
c = (struct cipher *)malloc(sizeof(*c));
if (!c)
{
return NULL;
}
c->round = clefiakeyset(c->rk, key);
gen_subkey(c);
memset(c->vector, 0, 16);
return c;
}
void cipher_deinit(struct cipher *c)
{
memset(c, 0, sizeof(*c));
free(c);
}
int cipher_calc_cmac(struct cipher *c, void *data, int size, void *cmac)
{
uint8_t m[16];
uint8_t *p;
if (size & 0xf)
{
return -1;
}
p = (uint8_t *) data;
while (size)
{
bytexor(m, c->vector, p, 16);
clefiaencrypt(c->vector, m, c->rk, c->round);
size -= 16;
p += 16;
}
bytexor(cmac, m, c->k1, 16);
clefiaencrypt(cmac, cmac, c->rk, c->round);
memset(m, 0, 16);
return 0;
}
void bytexor(unsigned char *dst, const unsigned char *a,
const unsigned char *b, int bytelen)
{
while (bytelen-- > 0)
{
*dst++ = *a++ ^ *b++;
}
}
int clefiakeyset(unsigned char *rk, const unsigned char *skey)
{
const unsigned char iv[2] =
{
0x42u, 0x8au /* cubic root of 2 */
};
unsigned char lk[16];
unsigned char con128[4 * 60];
int i;
/* generating CONi^(128) (0 <= i < 60, lk = 30) */
clefiaconset(con128, iv, 30);
/* GFN_{4,12} (generating L from K) */
clefiagfn4(lk, skey, con128, 12);
bytecpy(rk, skey, 8); /* initial whitening key (WK0, WK1) */
rk += 8;
for (i = 0; i < 9; i++)
{
/* round key (RKi (0 <= i < 36)) */
bytexor(rk, lk, con128 + i * 16 + (4 * 24), 16);
if (i % 2)
{
bytexor(rk, rk, skey, 16); /* Xoring K */
}
clefiadoubleswap(lk); /* Updating L (DoubleSwap function) */
rk += 16;
}
bytecpy(rk, skey + 8, 8); /* final whitening key (WK2, WK3) */
return 18;
}
void clefiaencrypt(unsigned char *ct, const unsigned char *pt,
const unsigned char *rk, const int r)
{
unsigned char rin[16];
unsigned char rout[16];
bytecpy(rin, pt, 16);
bytexor(rin + 4, rin + 4, rk + 0, 4); /* initial key whitening */
bytexor(rin + 12, rin + 12, rk + 4, 4);
rk += 8;
clefiagfn4(rout, rin, rk, r); /* GFN_{4,r} */
bytecpy(ct, rout, 16);
bytexor(ct + 4, ct + 4, rk + r * 8 + 0, 4); /* final key whitening */
bytexor(ct + 12, ct + 12, rk + r * 8 + 4, 4);
}

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/****************************************************************************
* tools/cxd56/clefia.h
*
* Copyright (C) 2007, 2008 Sony Corporation
*
* 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 NuttX 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 COPYRIGHT HOLDERS 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
* COPYRIGHT OWNER 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.
*****************************************************************************/
#ifndef _TOOLS_CXD56_CLEFIA_H_
#define _TOOLS_CXD56_CLEFIA_H_
/****************************************************************************
* Public Types
****************************************************************************/
struct cipher
{
int mode;
int dir;
uint8_t rk[8 * 26 + 16];
uint8_t vector[16];
int round;
uint8_t k1[16];
uint8_t k2[16];
};
/****************************************************************************
* Public Function Prototypes
****************************************************************************/
struct cipher *cipher_init(uint8_t * key, uint8_t * iv);
void cipher_deinit(struct cipher *c);
int cipher_calc_cmac(struct cipher *c, void *data, int size, void *cmac);
void bytexor(unsigned char *dst, const unsigned char *a,
const unsigned char *b, int bytelen);
int clefiakeyset(unsigned char *rk, const unsigned char *skey);
void clefiaencrypt(unsigned char *ct, const unsigned char *pt,
const unsigned char *rk, const int r);
#endif

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/****************************************************************************
* tools/cxd56/mkspk.c
*
* Copyright (C) 2007, 2008 Sony Corporation
*
* 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 NuttX 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 COPYRIGHT HOLDERS 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
* COPYRIGHT OWNER 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.
*****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <sys/types.h>
#include <sys/stat.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <stdint.h>
#include <stdbool.h>
#include <assert.h>
#include "mkspk.h"
/****************************************************************************
* Private Types
****************************************************************************/
struct args
{
int core;
char *elffile;
char *savename;
char *outputfile;
};
/****************************************************************************
* Private Data
****************************************************************************/
static uint8_t vmk[16] =
"\x27\xc0\xaf\x1b\x5d\xcb\xc6\xc5\x58\x22\x1c\xdd\xaf\xf3\x20\x21";
static struct args g_options =
{
0
};
/****************************************************************************
* Private Functions
****************************************************************************/
static struct args *parse_args(int argc, char **argv)
{
int opt;
int show_help;
struct args *args = &g_options;
char *endp;
show_help = 0;
if (argc < 2)
{
show_help = 1;
}
memset(args, 0, sizeof(*args));
args->core = -1;
while ((opt = getopt(argc, argv, "h:c:")) != -1)
{
switch (opt)
{
case 'c':
args->core = strtol(optarg, &endp, 0);
if (*endp)
{
fprintf(stderr, "Invalid core number \"%s\"\n", optarg);
show_help = 1;
}
break;
case 'h':
default:
show_help = 1;
}
}
argc -= optind;
argv += optind;
args->elffile = argv[0];
args->savename = argv[1];
argc -= 2;
argv += 2;
if (argc > 0)
{
args->outputfile = strdup(argv[0]);
}
else
{
show_help = 1;
}
/* Sanity checks for options */
if (show_help == 1)
{
fprintf(stderr,
"mkspk [-c <number>] <filename> <save name> [<output file>]\n");
exit(EXIT_FAILURE);
}
if (args->core < 0)
{
fprintf(stderr, "Core number is not set. Please use -c option.\n");
exit(EXIT_FAILURE);
}
if (strlen(args->savename) > 63)
{
fprintf(stderr, "savename too long.\n");
exit(EXIT_FAILURE);
}
return args;
}
static struct elf_file *load_elf(const char *filename)
{
size_t fsize;
int pos;
char *buf;
FILE *fp;
struct elf_file *ef;
Elf32_Shdr *sh;
uint16_t i;
int ret;
fp = fopen(filename, "rb");
if (!fp)
{
return NULL;
}
ef = (struct elf_file *)malloc(sizeof(*ef));
if (!ef)
{
return NULL;
}
pos = fseek(fp, 0, SEEK_END);
fsize = (size_t) ftell(fp);
fseek(fp, pos, SEEK_SET);
buf = (char *)malloc(fsize);
if (!buf)
{
return NULL;
}
ret = fread(buf, fsize, 1, fp);
fclose(fp);
if (ret != 1)
{
return NULL;
}
ef->data = buf;
ef->ehdr = (Elf32_Ehdr *) buf;
Elf32_Ehdr *h = (Elf32_Ehdr *) buf;
if (!(h->e_ident[EI_MAG0] == 0x7f &&
h->e_ident[EI_MAG1] == 'E' &&
h->e_ident[EI_MAG2] == 'L' && h->e_ident[EI_MAG3] == 'F'))
{
free(ef);
free(buf);
return NULL;
}
ef->phdr = (Elf32_Phdr *) (buf + ef->ehdr->e_phoff);
ef->shdr = (Elf32_Shdr *) (buf + ef->ehdr->e_shoff);
ef->shstring = buf + ef->shdr[ef->ehdr->e_shstrndx].sh_offset;
for (i = 0, sh = ef->shdr; i < ef->ehdr->e_shnum; i++, sh++)
{
if (sh->sh_type == SHT_SYMTAB)
{
ef->symtab = (Elf32_Sym *) (buf + sh->sh_offset);
ef->nsyms = sh->sh_size / sh->sh_entsize;
continue;
}
if (sh->sh_type == SHT_STRTAB)
{
if (!strcmp(".strtab", ef->shstring + sh->sh_name))
{
ef->string = buf + sh->sh_offset;
}
}
}
return ef;
}
static void *create_image(struct elf_file *elf, int core, char *savename,
int *image_size)
{
char *img;
struct spk_header *header;
struct spk_prog_info *pi;
Elf32_Phdr *ph;
Elf32_Sym *sym;
char *name;
int snlen;
int nphs, psize, imgsize;
int i;
int j;
uint32_t offset;
uint32_t sp;
snlen = alignup(strlen(savename) + 1, 16);
nphs = 0;
psize = 0;
for (i = 0, ph = elf->phdr; i < elf->ehdr->e_phnum; i++, ph++)
{
if (ph->p_type != PT_LOAD || ph->p_filesz == 0)
{
continue;
}
nphs++;
psize += alignup(ph->p_filesz, 16);
}
imgsize = sizeof(*header) + snlen + (nphs * 16) + psize;
img = (char *)malloc(imgsize + 32);
if (!img)
{
return NULL;
}
*image_size = imgsize;
sym = elf->symtab;
name = elf->string;
sp = 0;
for (j = 0; j < elf->nsyms; j++, sym++)
{
if (!strcmp("__stack", name + sym->st_name))
{
sp = sym->st_value;
}
}
memset(img, 0, imgsize);
header = (struct spk_header *)img;
header->magic[0] = 0xef;
header->magic[1] = 'M';
header->magic[2] = 'O';
header->magic[3] = 'D';
header->cpu = core;
header->entry = elf->ehdr->e_entry;
header->stack = sp;
header->core = core;
header->binaries = nphs;
header->phoffs = sizeof(*header) + snlen;
header->mode = 0777;
strncpy(img + sizeof(*header), savename, 63);
ph = elf->phdr;
pi = (struct spk_prog_info *)(img + header->phoffs);
offset = ((char *)pi - img) + (nphs * sizeof(*pi));
for (i = 0; i < elf->ehdr->e_phnum; i++, ph++)
{
if (ph->p_type != PT_LOAD || ph->p_filesz == 0)
continue;
pi->load_address = ph->p_paddr;
pi->offset = offset;
pi->size = alignup(ph->p_filesz, 16); /* need 16 bytes align for
* decryption */
pi->memsize = ph->p_memsz;
memcpy(img + pi->offset, elf->data + ph->p_offset, ph->p_filesz);
offset += alignup(ph->p_filesz, 16);
pi++;
}
return img;
}
/****************************************************************************
* Public Functions
****************************************************************************/
int main(int argc, char **argv)
{
struct args *args;
struct elf_file *elf;
struct cipher *c;
uint8_t *spkimage;
int size = 0;
FILE *fp;
char footer[16];
args = parse_args(argc, argv);
elf = load_elf(args->elffile);
if (!elf)
{
fprintf(stderr, "Loading ELF %s failure.\n", args->elffile);
exit(EXIT_FAILURE);
}
spkimage = create_image(elf, args->core, args->savename, &size);
free(elf);
c = cipher_init(vmk, NULL);
cipher_calc_cmac(c, spkimage, size, (uint8_t *) spkimage + size);
cipher_deinit(c);
size += 16; /* Extend CMAC size */
snprintf(footer, 16, "MKSPK_BN_HOOTER");
footer[15] = '\0';
fp = fopen(args->outputfile, "wb");
if (!fp)
{
fprintf(stderr, "Output file open error.\n");
free(spkimage);
exit(EXIT_FAILURE);
}
fwrite(spkimage, size, 1, fp);
fwrite(footer, 16, 1, fp);
fclose(fp);
printf("File %s is successfully created.\n", args->outputfile);
free(args->outputfile);
memset(spkimage, 0, size);
free(spkimage);
exit(EXIT_SUCCESS);
}

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/****************************************************************************
* tools/cxd56/mkspk.h
*
* Copyright (C) 2007, 2008 Sony Corporation
*
* 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 NuttX 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 COPYRIGHT HOLDERS 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
* COPYRIGHT OWNER 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.
*****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include "clefia.h"
#include "elf.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
#define alignup(x, a) (((x) + ((a) - 1)) & ~((a) - 1))
#define swap(a, b) { (a) ^= (b); (b) ^= (a); (a) ^= (b); }
/****************************************************************************
* Public Types
****************************************************************************/
struct spk_header
{
uint8_t magic[4];
uint8_t cpu;
uint8_t reserved[11];
uint32_t entry;
uint32_t stack;
uint16_t core;
uint16_t binaries;
uint16_t phoffs;
uint16_t mode;
};
struct spk_prog_info
{
uint32_t load_address;
uint32_t offset;
uint32_t size;
uint32_t memsize;
};
struct elf_file
{
Elf32_Ehdr *ehdr;
Elf32_Phdr *phdr;
Elf32_Shdr *shdr;
Elf32_Sym *symtab;
int nsyms;
char *shstring;
char *string;
char *data;
};