mirror of
https://github.com/RfidResearchGroup/proxmark3.git
synced 2024-09-20 15:26:13 +08:00
remove unused src files prng.c and tea.c
Note that there is a clean public domain implementation of tea on wikipedia...
This commit is contained in:
Philippe Teuwen
parent
78628cbe0c
commit
08719839b5
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@ -341,10 +341,8 @@ set (TARGET_SOURCES
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${PM3_ROOT}/client/src/pm3_binlib.c
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${PM3_ROOT}/client/src/pm3_bitlib.c
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${PM3_ROOT}/client/src/pm3line.c
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${PM3_ROOT}/client/src/prng.c
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${PM3_ROOT}/client/src/scandir.c
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${PM3_ROOT}/client/src/scripting.c
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${PM3_ROOT}/client/src/tea.c
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${PM3_ROOT}/client/src/ui.c
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${PM3_ROOT}/client/src/util.c
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${PM3_ROOT}/client/src/wiegand_formats.c
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@ -634,14 +634,12 @@ SRCS = mifare/aiddesfire.c \
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pm3_binlib.c \
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pm3_bitlib.c \
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preferences.c \
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prng.c \
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pm3line.c \
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proxmark3.c \
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scandir.c \
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uart/uart_posix.c \
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uart/uart_win32.c \
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scripting.c \
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tea.c \
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ui.c \
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util.c \
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version_pm3.c \
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@ -342,10 +342,8 @@ set (TARGET_SOURCES
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${PM3_ROOT}/client/src/pm3_binlib.c
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${PM3_ROOT}/client/src/pm3_bitlib.c
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${PM3_ROOT}/client/src/pm3line.c
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${PM3_ROOT}/client/src/prng.c
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${PM3_ROOT}/client/src/scandir.c
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${PM3_ROOT}/client/src/scripting.c
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${PM3_ROOT}/client/src/tea.c
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${PM3_ROOT}/client/src/ui.c
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${PM3_ROOT}/client/src/util.c
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${PM3_ROOT}/client/src/wiegand_formats.c
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@ -29,7 +29,6 @@
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#include "crc.h"
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#include "crc16.h" // crc16 ccitt
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#include "crc32.h" // crc32_ex
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#include "tea.h"
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#include "legic_prng.h"
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#include "cmddata.h" // g_DemodBuffer
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#include "graph.h"
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@ -489,55 +488,6 @@ static int CmdAnalyseDates(const char *Cmd) {
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return PM3_SUCCESS;
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}
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static int CmdAnalyseTEASelfTest(const char *Cmd) {
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CLIParserContext *ctx;
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CLIParserInit(&ctx, "analyse tea",
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"Crypto TEA self tests",
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"analyse tea -d 1122334455667788"
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);
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void *argtable[] = {
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arg_param_begin,
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arg_str1("d", "data", "<hex>", "bytes to encrypt ( 8 hex bytes )"),
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arg_param_end
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};
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CLIExecWithReturn(ctx, Cmd, argtable, true);
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int dlen = 0;
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uint8_t data[8] = {0x00};
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int res = CLIParamHexToBuf(arg_get_str(ctx, 1), data, sizeof(data), &dlen);
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CLIParserFree(ctx);
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if (res) {
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PrintAndLogEx(FAILED, "Error parsing bytes");
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return PM3_EINVARG;
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}
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uint8_t v_le[8];
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memset(v_le, 0x00, sizeof(v_le));
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uint8_t *v_ptr = v_le;
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SwapEndian64ex(data, 8, 4, v_ptr);
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// ENCRYPTION KEY:
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uint8_t key[16] = {0x55, 0xFE, 0xF6, 0x30, 0x62, 0xBF, 0x0B, 0xC1, 0xC9, 0xB3, 0x7C, 0x34, 0x97, 0x3E, 0x29, 0xFB };
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uint8_t keyle[16];
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uint8_t *key_ptr = keyle;
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SwapEndian64ex(key, sizeof(key), 4, key_ptr);
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PrintAndLogEx(INFO, "TEA crypto testing");
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PrintAndLogEx(INFO, "-----------------------------------+---------");
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PrintAndLogEx(INFO, "LE enc.... %s", sprint_hex_ascii(v_ptr, 8));
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tea_decrypt(v_ptr, key_ptr);
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PrintAndLogEx(INFO, "LE dec.... %s", sprint_hex_ascii(v_ptr, 8));
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tea_encrypt(v_ptr, key_ptr);
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PrintAndLogEx(INFO, "enc1...... %s", sprint_hex_ascii(v_ptr, 8));
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tea_encrypt(v_ptr, key_ptr);
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PrintAndLogEx(INFO, "enc2...... %s", sprint_hex_ascii(v_ptr, 8));
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PrintAndLogEx(NORMAL, "");
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return PM3_SUCCESS;
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}
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static int CmdAnalyseA(const char *Cmd) {
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CLIParserContext *ctx;
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CLIParserInit(&ctx, "analyse a",
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@ -1205,7 +1155,6 @@ static command_t CommandTable[] = {
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{"crc", CmdAnalyseCRC, AlwaysAvailable, "Stub method for CRC evaluations"},
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{"chksum", CmdAnalyseCHKSUM, AlwaysAvailable, "Checksum with adding, masking and one's complement"},
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{"dates", CmdAnalyseDates, AlwaysAvailable, "Look for datestamps in a given array of bytes"},
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{"tea", CmdAnalyseTEASelfTest, AlwaysAvailable, "Crypto TEA test"},
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{"lfsr", CmdAnalyseLfsr, AlwaysAvailable, "LFSR tests"},
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{"a", CmdAnalyseA, AlwaysAvailable, "num bits test"},
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{"nuid", CmdAnalyseNuid, AlwaysAvailable, "create NUID from 7byte UID"},
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@ -1,53 +0,0 @@
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//-----------------------------------------------------------------------------
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// Borrowed initially from http://burtleburtle.net/bob/rand/smallprng.html
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// Copyright (C) Bob Jenkins
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// Copyright (C) Proxmark3 contributors. See AUTHORS.md for details.
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// See LICENSE.txt for the text of the license.
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//-----------------------------------------------------------------------------
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// Burtle Prng - Modified. 42iterations instead of 20.
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//-----------------------------------------------------------------------------
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#include "prng.h"
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#define rot(x,k) (((x)<<(k))|((x)>>(32-(k))))
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uint32_t burtle_get_mod(prng_ctx_t *x) {
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uint32_t e = x->a - rot(x->b, 21);
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x->a = x->b ^ rot(x->c, 19);
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x->b = x->c + rot(x->d, 6);
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x->c = x->d + e;
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x->d = e + x->a;
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return x->d;
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}
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void burtle_init_mod(prng_ctx_t *x, uint32_t seed) {
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x->a = 0xf1ea5eed;
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x->b = x->c = x->d = seed;
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for (uint8_t i = 0; i < 42; ++i) {
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(void)burtle_get_mod(x);
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}
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}
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void burtle_init(prng_ctx_t *x, uint32_t seed) {
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uint32_t i;
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x->a = 0xf1ea5eed, x->b = x->c = x->d = seed;
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for (i = 0; i < 20; ++i) {
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(void)burtle_get_mod(x);
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}
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}
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uint32_t GetSimplePrng(uint32_t seed) {
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seed *= 0x19660D;
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seed += 0x3C6EF35F;
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return seed;
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}
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@ -1,40 +0,0 @@
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//-----------------------------------------------------------------------------
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// Borrowed initially from http://burtleburtle.net/bob/rand/smallprng.html
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// Copyright (C) Bob Jenkins
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// Copyright (C) Proxmark3 contributors. See AUTHORS.md for details.
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// See LICENSE.txt for the text of the license.
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//-----------------------------------------------------------------------------
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// Burtle Prng - Modified. 42iterations instead of 20.
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//-----------------------------------------------------------------------------
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#ifndef __PRNG_H
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#define __PRNG_H
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#include "common.h"
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typedef struct {
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uint32_t a;
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uint32_t b;
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uint32_t c;
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uint32_t d;
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} prng_ctx_t;
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//uint32_t burtle_get( prng_ctx_t *x );
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uint32_t burtle_get_mod(prng_ctx_t *x);
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void burtle_init_mod(prng_ctx_t *x, uint32_t seed);
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void burtle_init(prng_ctx_t *x, uint32_t seed);
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uint32_t GetSimplePrng(uint32_t seed);
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#endif /* __PRNG_H */
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@ -1,79 +0,0 @@
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//-----------------------------------------------------------------------------
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// Borrowed initially from
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// https://web.archive.org/web/20070920142755/http://www.simonshepherd.supanet.com:80/source.htm#ansi
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// Copyright (C) Simon Shepherd 2003
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// Copyright (C) Proxmark3 contributors. See AUTHORS.md for details.
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// See LICENSE.txt for the text of the license.
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//-----------------------------------------------------------------------------
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// Generic TEA crypto code.
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//-----------------------------------------------------------------------------
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#include "tea.h"
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#include "commonutil.h" // bytes_to_num etc
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#define ROUNDS 32
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#define DELTA 0x9E3779B9
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#define SUM 0xC6EF3720
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void tea_encrypt(uint8_t *v, uint8_t *key) {
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uint32_t a = 0, b = 0, c = 0, d = 0, y = 0, z = 0;
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uint32_t sum = 0;
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uint8_t n = ROUNDS;
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//key
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a = bytes_to_num(key, 4);
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b = bytes_to_num(key + 4, 4);
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c = bytes_to_num(key + 8, 4);
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d = bytes_to_num(key + 12, 4);
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//input
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y = bytes_to_num(v, 4);
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z = bytes_to_num(v + 4, 4);
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while (n-- > 0) {
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sum += DELTA;
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y += ((z << 4) + a) ^ (z + sum) ^ ((z >> 5) + b);
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z += ((y << 4) + c) ^ (y + sum) ^ ((y >> 5) + d);
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}
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num_to_bytes(y, 4, v);
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num_to_bytes(z, 4, v + 4);
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}
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void tea_decrypt(uint8_t *v, uint8_t *key) {
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uint32_t a = 0, b = 0, c = 0, d = 0, y = 0, z = 0;
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uint32_t sum = SUM;
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uint8_t n = ROUNDS;
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//key
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a = bytes_to_num(key, 4);
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b = bytes_to_num(key + 4, 4);
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c = bytes_to_num(key + 8, 4);
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d = bytes_to_num(key + 12, 4);
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//input
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y = bytes_to_num(v, 4);
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z = bytes_to_num(v + 4, 4);
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/* sum = delta<<5, in general sum = delta * n */
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while (n-- > 0) {
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z -= ((y << 4) + c) ^ (y + sum) ^ ((y >> 5) + d);
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y -= ((z << 4) + a) ^ (z + sum) ^ ((z >> 5) + b);
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sum -= DELTA;
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}
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num_to_bytes(y, 4, v);
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num_to_bytes(z, 4, v + 4);
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}
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@ -1,30 +0,0 @@
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//-----------------------------------------------------------------------------
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// Borrowed initially from
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// https://web.archive.org/web/20070920142755/http://www.simonshepherd.supanet.com:80/source.htm#ansi
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// Copyright (C) Simon Shepherd 2003
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// Copyright (C) Proxmark3 contributors. See AUTHORS.md for details.
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// See LICENSE.txt for the text of the license.
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//-----------------------------------------------------------------------------
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// Generic TEA crypto code.
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//-----------------------------------------------------------------------------
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#ifndef __TEA_H
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#define __TEA_H
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#include "common.h"
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void tea_encrypt(uint8_t *v, uint8_t *key);
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void tea_decrypt(uint8_t *v, uint8_t *key);
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#endif /* __TEA_H */
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