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ppport.h  view on Meta::CPAN

PERL_MAGIC_glob|5.024000||p
PERL_MAGIC_isaelem|5.007002||p
PERL_MAGIC_isa|5.007002||p
PERL_MAGIC_mutex|5.024000||p
PERL_MAGIC_nkeys|5.007002||p
PERL_MAGIC_overload_elem|5.024000||p
PERL_MAGIC_overload_table|5.007002||p
PERL_MAGIC_overload|5.024000||p
PERL_MAGIC_pos|5.007002||p
PERL_MAGIC_qr|5.007002||p
PERL_MAGIC_regdata|5.007002||p
PERL_MAGIC_regdatum|5.007002||p
PERL_MAGIC_regex_global|5.007002||p
PERL_MAGIC_shared_scalar|5.007003||p
PERL_MAGIC_shared|5.007003||p
PERL_MAGIC_sigelem|5.007002||p
PERL_MAGIC_sig|5.007002||p
PERL_MAGIC_substr|5.007002||p
PERL_MAGIC_sv|5.007002||p
PERL_MAGIC_taint|5.007002||p
PERL_MAGIC_tiedelem|5.007002||p

tiny-AES-c/README.md  view on Meta::CPAN

It is one of the smallest implementations in C I've seen yet, but do contact me if you know of something smaller (or have improvements to the code here). 

I've successfully used the code on 64bit x86, 32bit ARM and 8 bit AVR platforms.


GCC size output when only CTR mode is compiled for ARM:

    $ arm-none-eabi-gcc -Os -DCBC=0 -DECB=0 -DCTR=1 -c aes.c
    $ size aes.o
       text    data     bss     dec     hex filename
       1203       0       0    1203     4b3 aes.o

.. and when compiling for the THUMB instruction set, we end up just below 1K in code size.

    $ arm-none-eabi-gcc -Os -mthumb -DCBC=0 -DECB=0 -DCTR=1 -c aes.c
    $ size aes.o
       text    data     bss     dec     hex filename
        955       0       0     955     3bb aes.o


I am using the Free Software Foundation, ARM GCC compiler:

    $ arm-none-eabi-gcc --version
    arm-none-eabi-gcc (4.8.4-1+11-1) 4.8.4 20141219 (release)
    Copyright (C) 2013 Free Software Foundation, Inc.
    This is free software; see the source for copying conditions.  There is NO
    warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.



This implementation is verified against the data in:

[National Institute of Standards and Technology Special Publication 800-38A 2001 ED](http://nvlpubs.nist.gov/nistpubs/Legacy/SP/nistspecialpublication800-38a.pdf) Appendix F: Example Vectors for Modes of Operation of the AES.

The other appendices in the document are valuable for implementation details on e.g. padding, generation of IVs and nonces in CTR-mode etc.


A heartfelt thank-you to all the nice people out there who have contributed to this project.


All material in this repository is in the public domain.