PicoPass / iClass (#1298)

* add mdedtls for des3 implementation * add localss from RfidResearchGroup/proxmark3 * picopass reader app and rfal for communicating with picopass cards * always turn off field * close storage when keys are not found * Add mbedtls as submodule * add mbedtl_config * Switched to only including specific mbedtls files I need. Thank you @kevinwallace * cherry-pick kevinwallace sconsify * scons for mbedtls/loclass * Reset to ready state on error * unsigned FC/CN * clean FC/CN if not decoded Co-authored-by: hedger <hedger@users.noreply.github.com> Co-authored-by: あく <alleteam@gmail.com> Co-authored-by: Kevin Wallace <git+flipperzero@kevin.wallace.seattle.wa.us>
2022-07-03 01:44:38 -07:00
parent b3767d143f
commit 1975868ed8
19 changed files with 2048 additions and 0 deletions
--- a/lib/loclass/optimized_cipherutils.c
+++ b/lib/loclass/optimized_cipherutils.c
@@ -0,0 +1,137 @@
+//-----------------------------------------------------------------------------
+// Borrowed initially from https://github.com/holiman/loclass
+// Copyright (C) 2014 Martin Holst Swende
+// Copyright (C) Proxmark3 contributors. See AUTHORS.md for details.
+//
+// This program 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 3 of the License, or
+// (at your option) any later version.
+//
+// This program 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.
+//
+// See LICENSE.txt for the text of the license.
+//-----------------------------------------------------------------------------
+// WARNING
+//
+// THIS CODE IS CREATED FOR EXPERIMENTATION AND EDUCATIONAL USE ONLY.
+//
+// USAGE OF THIS CODE IN OTHER WAYS MAY INFRINGE UPON THE INTELLECTUAL
+// PROPERTY OF OTHER PARTIES, SUCH AS INSIDE SECURE AND HID GLOBAL,
+// AND MAY EXPOSE YOU TO AN INFRINGEMENT ACTION FROM THOSE PARTIES.
+//
+// THIS CODE SHOULD NEVER BE USED TO INFRINGE PATENTS OR INTELLECTUAL PROPERTY RIGHTS.
+//-----------------------------------------------------------------------------
+// It is a reconstruction of the cipher engine used in iClass, and RFID techology.
+//
+// The implementation is based on the work performed by
+// Flavio D. Garcia, Gerhard de Koning Gans, Roel Verdult and
+// Milosch Meriac in the paper "Dismantling IClass".
+//-----------------------------------------------------------------------------
+#include "optimized_cipherutils.h"
+#include <stdint.h>
+
+/**
+ *
+ * @brief Return and remove the first bit (x0) in the stream : <x0 x1 x2 x3 ... xn >
+ * @param stream
+ * @return
+ */
+bool headBit(BitstreamIn_t *stream) {
+    int bytepos = stream->position >> 3; // divide by 8
+    int bitpos = (stream->position++) & 7; // mask out 00000111
+    return (*(stream->buffer + bytepos) >> (7 - bitpos)) & 1;
+}
+/**
+ * @brief Return and remove the last bit (xn) in the stream: <x0 x1 x2 ... xn>
+ * @param stream
+ * @return
+ */
+bool tailBit(BitstreamIn_t *stream) {
+    int bitpos = stream->numbits - 1 - (stream->position++);
+
+    int bytepos = bitpos >> 3;
+    bitpos &= 7;
+    return (*(stream->buffer + bytepos) >> (7 - bitpos)) & 1;
+}
+/**
+ * @brief Pushes bit onto the stream
+ * @param stream
+ * @param bit
+ */
+void pushBit(BitstreamOut_t *stream, bool bit) {
+    int bytepos = stream->position >> 3; // divide by 8
+    int bitpos = stream->position & 7;
+    *(stream->buffer + bytepos) |= (bit) << (7 - bitpos);
+    stream->position++;
+    stream->numbits++;
+}
+
+/**
+ * @brief Pushes the lower six bits onto the stream
+ * as b0 b1 b2 b3 b4 b5 b6
+ * @param stream
+ * @param bits
+ */
+void push6bits(BitstreamOut_t *stream, uint8_t bits) {
+    pushBit(stream, bits & 0x20);
+    pushBit(stream, bits & 0x10);
+    pushBit(stream, bits & 0x08);
+    pushBit(stream, bits & 0x04);
+    pushBit(stream, bits & 0x02);
+    pushBit(stream, bits & 0x01);
+}
+
+/**
+ * @brief bitsLeft
+ * @param stream
+ * @return number of bits left in stream
+ */
+int bitsLeft(BitstreamIn_t *stream) {
+    return stream->numbits - stream->position;
+}
+/**
+ * @brief numBits
+ * @param stream
+ * @return Number of bits stored in stream
+ */
+void x_num_to_bytes(uint64_t n, size_t len, uint8_t *dest) {
+    while (len--) {
+        dest[len] = (uint8_t) n;
+        n >>= 8;
+    }
+}
+
+uint64_t x_bytes_to_num(uint8_t *src, size_t len) {
+    uint64_t num = 0;
+    while (len--) {
+        num = (num << 8) | (*src);
+        src++;
+    }
+    return num;
+}
+
+uint8_t reversebytes(uint8_t b) {
+    b = (b & 0xF0) >> 4 | (b & 0x0F) << 4;
+    b = (b & 0xCC) >> 2 | (b & 0x33) << 2;
+    b = (b & 0xAA) >> 1 | (b & 0x55) << 1;
+    return b;
+}
+
+void reverse_arraybytes(uint8_t *arr, size_t len) {
+    uint8_t i;
+    for (i = 0; i < len ; i++) {
+        arr[i] = reversebytes(arr[i]);
+    }
+}
+
+void reverse_arraycopy(uint8_t *arr, uint8_t *dest, size_t len) {
+    uint8_t i;
+    for (i = 0; i < len ; i++) {
+        dest[i] = reversebytes(arr[i]);
+    }
+}
+