From 9132c1117c69c30ff96919343682174050eb73ca Mon Sep 17 00:00:00 2001 From: bg Date: Tue, 11 Oct 2011 01:10:32 +0200 Subject: [PATCH] adding sha-224, going to test whole SHA2 this night ... --- hfal/hfal_sha224.c | 49 +++++++++++++++++ hfal/hfal_sha224.h | 36 +++++++++++++ mkfiles/sha2_c.mk | 6 ++- sha2/sha224.c | 128 +++++++++++++++++++++++++++++++++++++++++++++ sha2/sha224.h | 108 ++++++++++++++++++++++++++++++++++++++ 5 files changed, 325 insertions(+), 2 deletions(-) create mode 100644 hfal/hfal_sha224.c create mode 100644 hfal/hfal_sha224.h create mode 100644 sha2/sha224.c create mode 100644 sha2/sha224.h diff --git a/hfal/hfal_sha224.c b/hfal/hfal_sha224.c new file mode 100644 index 0000000..ad91f3c --- /dev/null +++ b/hfal/hfal_sha224.c @@ -0,0 +1,49 @@ +/* hfal_sha224.c */ +/* + This file is part of the ARM-Crypto-Lib. + Copyright (C) 2011 Daniel Otte (daniel.otte@rub.de) + + 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. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . +*/ +/** + * \file hfal_sha224.c + * \email daniel.otte@rub.de + * \author Daniel Otte + * \date 2011-10-11 + * \license GPLv3 or later + * + */ + + +#include +#include "hashfunction_descriptor.h" +#include "sha224.h" + +static const char sha224_str[] = "SHA-224"; + +const hfdesc_t sha224_desc = { + HFDESC_TYPE_HASHFUNCTION, + 0, + sha224_str, + sizeof(sha224_ctx_t), + 512, + 224, + (hf_init_fpt)sha224_init, + (hf_nextBlock_fpt)sha224_nextBlock, + (hf_lastBlock_fpt)sha224_lastBlock, + (hf_ctx2hash_fpt)sha224_ctx2hash, + (hf_free_fpt)NULL, + (hf_mem_fpt)sha224 +}; + diff --git a/hfal/hfal_sha224.h b/hfal/hfal_sha224.h new file mode 100644 index 0000000..0551058 --- /dev/null +++ b/hfal/hfal_sha224.h @@ -0,0 +1,36 @@ +/* hfal_sha224.h */ +/* + This file is part of the ARM-Crypto-Lib. + Copyright (C) 2011 Daniel Otte (daniel.otte@rub.de) + + 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. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . +*/ +/** + * \file hfal_sha224.h + * \email daniel.otte@rub.de + * \author Daniel Otte + * \date 2011-10-11 + * \license GPLv3 or later + * + */ + +#ifndef HFAL_SHA224_H_ +#define HFAL_SHA224_H_ + + +#include "hashfunction_descriptor.h" + +extern const hfdesc_t sha224_desc; + +#endif /* HFAL_SHA224_H_ */ diff --git a/mkfiles/sha2_c.mk b/mkfiles/sha2_c.mk index bdab1bc..22daed5 100644 --- a/mkfiles/sha2_c.mk +++ b/mkfiles/sha2_c.mk @@ -6,8 +6,10 @@ HASHES += $(ALGO_NAME) $(ALGO_NAME)_DIR := sha2/ $(ALGO_NAME)_INCDIR := hfal/ -$(ALGO_NAME)_OBJ := sha512.o sha384.o sha2_large_common.o -$(ALGO_NAME)_TESTBIN := main-sha2-test.o $(CLI_STD) $(HFAL_STD) hfal_sha512.o hfal_sha384.o +$(ALGO_NAME)_OBJ := sha224.o sha256.o sha384.o sha512.o \ + sha2_small_common.o sha2_large_common.o +$(ALGO_NAME)_TESTBIN := main-sha2-test.o $(CLI_STD) $(HFAL_STD) \ + hfal_sha224.o hfal_sha256.o hfal_sha512.o hfal_sha384.o $(ALGO_NAME)_NESSIE_TEST := "nessie" $(ALGO_NAME)_PERFORMANCE_TEST := "performance" diff --git a/sha2/sha224.c b/sha2/sha224.c new file mode 100644 index 0000000..f54d0a3 --- /dev/null +++ b/sha2/sha224.c @@ -0,0 +1,128 @@ +/* sha224.c */ +/* + This file is part of the ARM-Crypto-Lib. + Copyright (C) 2006-2010 Daniel Otte (daniel.otte@rub.de) + + 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. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . +*/ +/** + * \file sha224.c + * \author Daniel Otte + * \date 16.05.2006 + * + * \par License: + * GPL + * + * \brief SHA-224 implementation. + * + * + */ + +#include +#include /* for memcpy, memmove, memset */ +#include "sha2_small_common.h" +#include "sha224.h" + +#define LITTLE_ENDIAN + +#if defined LITTLE_ENDIAN +#elif defined BIG_ENDIAN +#else + #error specify endianess!!! +#endif + + +/*************************************************************************/ + +const +uint32_t sha224_init_vector[]={ + 0xc1059ed8, 0x367cd507, 0x3070dd17, 0xf70e5939, + 0xffc00b31, 0x68581511, 0x64f98fa7, 0xbefa4fa4 +}; + + +/*************************************************************************/ + +/** + * \brief \c sh224_init initialises a sha224 context for hashing. + * \c sh224_init c initialises the given sha224 context for hashing + * @param state pointer to a sha224 context + * @return none + */ +void sha224_init(sha224_ctx_t *state){ + state->length=0; + memcpy(state->h, sha224_init_vector, 8*4); +} + +/*************************************************************************/ +void sha224_nextBlock (sha224_ctx_t *state, const void* block){ + sha2_small_common_nextBlock(state, block); +} + +/*************************************************************************/ +void sha224_lastBlock (sha224_ctx_t *state, const void* block, uint16_t length_b){ + sha2_small_common_lastBlock(state, block, length_b); +} +/*************************************************************************/ + +/** + * \brief function to process the last block being hashed + * @param state Pointer to the context in which this block should be processed. + * @param block Pointer to the message wich should be hashed. + * @param length is the length of only THIS block in BITS not in bytes! + * bits are big endian, meaning high bits come first. + * if you have a message with bits at the end, the byte must be padded with zeros + */ + +/*************************************************************************/ + +/* + * length in bits! + */ +void sha224(void* dest, const void* msg, uint32_t length_b){ /* length could be choosen longer but this is for µC */ + sha224_ctx_t s; + sha224_init(&s); + while(length_b >= SHA224_BLOCK_BITS){ + sha224_nextBlock(&s, msg); + msg = (uint8_t*)msg + SHA224_BLOCK_BITS/8; + length_b -= SHA224_BLOCK_BITS; + } + sha224_lastBlock(&s, msg, length_b); + sha224_ctx2hash(dest,&s); +} + + + +/*************************************************************************/ + +void sha224_ctx2hash(void* dest, const sha224_ctx_t *state){ +#if defined LITTLE_ENDIAN + uint8_t i, j, *s=(uint8_t*)(state->h); + i=7; + do{ + j=3; + do{ + *((uint8_t*)dest) = s[j]; + dest = (uint8_t*)dest + 1; + }while(j--); + s += 4; + }while(--i); +#elif BIG_ENDIAN + memcpy(dest, state->h, 28); +#else +# error unsupported endian type! +#endif +} + + diff --git a/sha2/sha224.h b/sha2/sha224.h new file mode 100644 index 0000000..2261ee5 --- /dev/null +++ b/sha2/sha224.h @@ -0,0 +1,108 @@ +/* sha224.h */ +/* + This file is part of the ARM-Crypto-Lib. + Copyright (C) 2011 Daniel Otte (daniel.otte@rub.de) + + 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. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . +*/ +/** + * \file sha224.h + * \author Daniel Otte + * \date 2011-10-11 + * \license GPLv3 or later + * + */ + +#ifndef SHA224_H_ +#define SHA224_H_ + +#include +#include "sha2_small_common.h" +/** \def SHA224_HASH_BITS + * defines the size of a SHA-224 hash value in bits + */ + +/** \def SHA224_HASH_BYTES + * defines the size of a SHA-224 hash value in bytes + */ + +/** \def SHA224_BLOCK_BITS + * defines the size of a SHA-224 input block in bits + */ + +/** \def SHA224_BLOCK_BYTES + * defines the size of a SHA-224 input block in bytes + */ + +#define SHA224_HASH_BITS 224 +#define SHA224_HASH_BYTES (SHA224_HASH_BITS/8) +#define SHA224_BLOCK_BITS 512 +#define SHA224_BLOCK_BYTES (SHA224_BLOCK_BITS/8) + +/** \typedef sha224_ctx_t + * \brief SHA-224 context type + * + * A variable of this type may hold the state of a SHA-224 hashing process + */ +typedef sha2_small_common_ctx_t sha224_ctx_t; + +/** \fn void sha224_init(sha224_ctx_t *state) + * \brief initialize a SHA-224 context + * + * This function sets a ::sha224_ctx_t to the initial values for hashing. + * \param state pointer to the SHA-224 hashing context + */ +void sha224_init(sha224_ctx_t *state); + +/** \fn void sha224_nextBlock (sha224_ctx_t* state, const void* block) + * \brief update the context with a given block + * + * This function updates the SHA-224 hash context by processing the given block + * of fixed length. + * \param state pointer to the SHA-224 hash context + * \param block pointer to the block of fixed length (512 bit = 64 byte) + */ +void sha224_nextBlock (sha224_ctx_t* state, const void* block); + +/** \fn void sha224_lastBlock(sha224_ctx_t* state, const void* block, uint16_t length_b) + * \brief finalize the context with the given block + * + * This function finalizes the SHA-224 hash context by processing the given block + * of variable length. + * \param state pointer to the SHA-224 hash context + * \param block pointer to the block of fixed length (512 bit = 64 byte) + * \param length_b the length of the block in bits + */ +void sha224_lastBlock(sha224_ctx_t* state, const void* block, uint16_t length_b); + +/** \fn void sha224_ctx2hash(sha224_hash_t* dest, const sha224_ctx_t* state) + * \brief convert the hash state into the hash value + * This function reads the context and writes the hash value to the destination + * \param dest pointer to the location where the hash value should be written + * \param state pointer to the SHA-224 hash context + */ +void sha224_ctx2hash(void* dest, const sha224_ctx_t* state); + +/** \fn void sha224(sha224_hash_t* dest, const void* msg, uint32_t length_b) + * \brief simple SHA-224 hashing function for direct hashing + * + * This function automatically hashes a given message of arbitary length with + * the SHA-224 hashing algorithm. + * \param dest pointer to the location where the hash value is going to be written to + * \param msg pointer to the message thats going to be hashed + * \param length_b length of the message in bits + */ +void sha224(void* dest, const void* msg, uint32_t length_b); + +#endif /*SHA224_H_*/