Included Algorithms

Hash Algorithms

• md5
• sha1
• sha256

Encryption Algorithms

• aes [128, 192, 256]

Other Algorithms

• gf256mul
• entropium

Significant changes from AVR-Crypto-Lib

• Added a common folder for common sources and portable assembly files.
• Suppressed all DEBUG from the original implementation. Intent is to provide integration with the HAL's bc_iface in the future. Removed the following 'common' header files :
  • config.h
  • cli.h
  • debug.h In their place, created a (currently blank) dummy holder for debug functions in common/debug.h.
• Moved avr_asm_macros.S into common.
• Renamed all used assembly sources from *-asm.S to *-avr.S. CMakeLists designed to now use <name>-<toolchain-prefix>.S instead when told to include <name>.c, if
  • the assembly file is available.
  • the CMake variable USE_ASM_IF_AVAILABLE is set.
  • where the build system is configured with a toolchain file that sets the CMake TOOLCHAIN_PREFIX variable. Note that this variable was intended to recognize toolchain binaries, such as "avr-gcc" (with a TOOLCHAIN_PREFIX of 'avr') and "msp430-elf-gcc" (with a TOOLCHAIN_PREFIX of 'msp430-elf'). Assembly files must therefore be named accordingly.
• Moved tables from PROGMEM into the newly defined ROMEM of common/romem.h. This header should, in principle, be able to handle differences in how each platform handles read only memory. This has not yet been adequately tested.

AES

• Moved all the aesXXX_enc.h/c files into aes_enc.h/c. This makes it compatible with the structure of aes_enc-avr.S.
• Moved all the aesXXX_dec.h/c files into aes_dec.h/c. This makes it compatible with the structure of aes_dec-avr.S.