commit | 725756a4f4c79adabc98c3365de23ab6b5381d80 | [log] [tgz] |
---|---|---|
author | Ken MacKay <kmackay@gmail.com> | Wed Jun 18 07:38:45 2014 -0700 |
committer | Ken MacKay <kmackay@gmail.com> | Wed Jun 18 07:38:45 2014 -0700 |
tree | 72e7cb76fd6af9591eb80735ea976b8ff7eb0c75 | |
parent | 7dce9816699b932fc69764133d1b4ca889257bf1 [diff] | |
parent | 73307bb15fcdd6949c122ca46f5fa956bec48d5c [diff] |
Merge pull request #11 from myrual/master replace uint to wordcount_t for keil arm compiler
A small and fast ECDH and ECDSA implementation for 8-bit, 32-bit, and 64-bit processors.
The old version of micro-ecc can be found in the “old” branch.
Compressed points are represented in the standard format as defined in http://www.secg.org/collateral/sec1_final.pdf; uncompressed points are represented in standard format, but without the 0x04
prefix. uECC_make_key()
, uECC_shared_secret()
, uECC_sign()
, and uECC_verify()
only handle uncompressed points; you can use uECC_compress()
and uECC_decompress()
to convert between compressed and uncompressed point representations.
Private keys are represented in the standard format.
I recommend just copying (or symlink) uECC.h, uECC.c, and the appropriate asm_<arch>_.inc (if any) into your project. Then just #include "uECC.h"
to use the micro-ecc functions.
For use with Arduino, you can just create a symlink to the uECC
directory in your Arduino libraries
directory. You can then use uECC just like any other Arduino library (uECC should show up in the Sketch=>Import Library submenu).
See uECC.h for documentation for each function.
uECC_ASM
is defined to uECC_asm_small
or uECC_asm_fast
), you must use the -fomit-frame-pointer
GCC option (this is enabled by default when compiling with -O1
or higher).-O1
or higher).advapi32.lib
system library.All tests were built using avr-gcc 4.8.1 with -Os
, and were run on a 16 MHz ATmega256RFR2. Code size refers to the space used by micro-ecc code and data.
In these tests, uECC_ASM
was defined to uECC_asm_fast
and ECC_SQUARE_FUNC
was defined to 1
in all cases.
In these tests, uECC_ASM
was defined to uECC_asm_small
and ECC_SQUARE_FUNC
was defined to 0
in all cases.
In these tests, uECC_ASM
was defined to uECC_asm_fast
and ECC_SQUARE_FUNC
was defined to 1
in all cases.
In these tests, uECC_ASM
was defined to uECC_asm_small
and ECC_SQUARE_FUNC
was defined to 0
in all cases.