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92 lines
2.6 KiB
Plaintext
92 lines
2.6 KiB
Plaintext
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### Arduino
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just run the sketched aftel loading the libraries.
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### Raspberry pi
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install
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```
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sudo make install
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cd examples_Rpi
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make
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```
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What to do after changes to the library
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```
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sudo make clean
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sudo make install
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cd examples_Rpi
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make clean
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make
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```
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What to do after changes to a sketch
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```
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cd examples_Rpi
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make <sketch>
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or
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make clean
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make
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```
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How to start a sketch
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```
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cd examples_Rpi
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sudo ./<sketch>
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```
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This is a derived work from Brian Gladman's AES implementation for byte-oriented
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processors, here's the licence terms:
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/*
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---------------------------------------------------------------------------
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Copyright (c) 1998-2008, Brian Gladman, Worcester, UK. All rights reserved.
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LICENSE TERMS
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The redistribution and use of this software (with or without changes)
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is allowed without the payment of fees or royalties provided that:
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1. source code distributions include the above copyright notice, this
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list of conditions and the following disclaimer;
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2. binary distributions include the above copyright notice, this list
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of conditions and the following disclaimer in their documentation;
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3. the name of the copyright holder is not used to endorse products
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built using this software without specific written permission.
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DISCLAIMER
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This software is provided 'as is' with no explicit or implied warranties
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in respect of its properties, including, but not limited to, correctness
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and/or fitness for purpose.
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---------------------------------------------------------------------------
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Issue 09/09/2006
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This is an AES implementation that uses only 8-bit byte operations on the
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cipher state (there are options to use 32-bit types if available).
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The combination of mix columns and byte substitution used here is based on
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that developed by Karl Malbrain. His contribution is acknowledged.
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*/
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/* This version derived by Mark Tillotson 2012-01-23, tidied up, slimmed down
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and tailored to 8-bit microcontroller abilities and Arduino datatypes.
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The s-box and inverse s-box were retained as tables (0.5kB PROGMEM) but all
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the other transformations are coded to save table space. Many efficiency
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improvments to the routines mix_sub_columns() and inv_mix_sub_columns()
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(mainly common sub-expression elimination).
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Only the routines with precalculated subkey schedule are retained (together
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with set_key() - this does however mean each AES object takes 240 bytes of
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RAM, alas)
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The CBC routines side-effect the iv argument (so that successive calls work
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together correctly).
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All the encryption and decryption routines work with plain == cipher for
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in-place encryption, note.
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*/
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