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Merge pull request #467 from DiUS/newcrypto 

Crypto module improvements
This commit is contained in:
Vowstar 2015-06-05 13:01:38 +08:00
parent 3cd5a6a1ed 7867fd083c
commit ef4e6fa95f
6 changed files with 59 additions and 39 deletions
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58
app/crypto/digests.c
View File

@ -29,41 +29,49 @@
*/
#include "digests.h"
#include "user_config.h"
#include "rom.h"
#include "lwip/mem.h"
#include "lwip/arch.h"
#include "ssl/ssl_crypto.h"
#include "sha2.h"
#include <string.h>
#include <c_errno.h>
#ifdef MD2_ENABLE
#include "ssl/ssl_crypto.h"
#endif
#ifdef SHA2_ENABLE
#include "sha2.h"
#endif
typedef char ensure_int_and_size_t_same[(sizeof(int)==sizeof(size_t)) ? 0 : -1];
/* None of the functions match the prototype fully due to the void *, and in
some cases also the int vs size_t len, so wrap declarations in a macro. */
#define MECH(pfx, ds, bs) \
#define MECH(pfx, u, ds, bs) \
{ #pfx, \
(create_ctx_fn)pfx ## _Init, \
(update_ctx_fn)pfx ## _Update, \
(finalize_ctx_fn)pfx ## _Final, \
(create_ctx_fn)pfx ## u ## Init, \
(update_ctx_fn)pfx ## u ## Update, \
(finalize_ctx_fn)pfx ## u ## Final, \
sizeof(pfx ## _CTX), \
ds, \
bs }
static const digest_mech_info_t hash_mechs[] =
static const digest_mech_info_t hash_mechs[] ICACHE_RODATA_ATTR =
{
MECH(MD2, MD2_SIZE, 16)
,MECH(MD5, MD5_SIZE, 64)
,MECH(SHA1, SHA1_SIZE, 64)
#ifdef MD2_ENABLE
MECH(MD2, _ , MD2_SIZE, 16),
#endif
MECH(MD5, , MD5_DIGEST_LENGTH, 64)
,MECH(SHA1, , SHA1_DIGEST_LENGTH, 64)
#ifdef SHA2_ENABLE
,MECH(SHA256, SHA256_DIGEST_LENGTH, SHA256_BLOCK_LENGTH)
,MECH(SHA384, SHA384_DIGEST_LENGTH, SHA384_BLOCK_LENGTH)
,MECH(SHA512, SHA512_DIGEST_LENGTH, SHA512_BLOCK_LENGTH)
,MECH(SHA256, _ , SHA256_DIGEST_LENGTH, SHA256_BLOCK_LENGTH)
,MECH(SHA384, _ , SHA384_DIGEST_LENGTH, SHA384_BLOCK_LENGTH)
,MECH(SHA512, _ , SHA512_DIGEST_LENGTH, SHA512_BLOCK_LENGTH)
#endif
};
#undef MECH
const digest_mech_info_t *crypto_digest_mech (const char *mech)
const digest_mech_info_t *ICACHE_FLASH_ATTR crypto_digest_mech (const char *mech)
{
if (!mech)
return 0;
@ -78,28 +86,22 @@ const digest_mech_info_t *crypto_digest_mech (const char *mech)
return 0;
}
static const char hex[] = "0123456789abcdef";
const char crypto_hexbytes[] = "0123456789abcdef";
// note: supports in-place encoding
void crypto_encode_asciihex (const char *bin, size_t binlen, char *outbuf)
void ICACHE_FLASH_ATTR crypto_encode_asciihex (const char *bin, size_t binlen, char *outbuf)
{
size_t aidx = binlen * 2 -1;
int i;
for (i = binlen -1; i >= 0; --i)
{
outbuf[aidx--] = hex[bin[i] & 0xf];
outbuf[aidx--] = hex[bin[i] >> 4];
outbuf[aidx--] = crypto_hexbytes[bin[i] & 0xf];
outbuf[aidx--] = crypto_hexbytes[bin[i] >> 4];
}
}
size_t crypto_digest_size (const char *mech)
{
const digest_mech_info_t *mi = crypto_digest_mech (mech);
return mi ? mi->digest_size : 0;
}
int crypto_hash (const digest_mech_info_t *mi,
int ICACHE_FLASH_ATTR crypto_hash (const digest_mech_info_t *mi,
const char *data, size_t data_len,
uint8_t *digest)
{
@ -119,7 +121,7 @@ int crypto_hash (const digest_mech_info_t *mi,
}
int crypto_hmac (const digest_mech_info_t *mi,
int ICACHE_FLASH_ATTR crypto_hmac (const digest_mech_info_t *mi,
const char *data, size_t data_len,
const char *key, size_t key_len,
uint8_t *digest)

10
app/crypto/digests.h
View File

@ -24,13 +24,14 @@ typedef void (*finalize_ctx_fn)(uint8_t *digest, void *ctx);
*/
typedef struct
{
/* Note: All entries are 32bit to enable placement using ICACHE_RODATA_ATTR.*/
const char * name;
create_ctx_fn create;
update_ctx_fn update;
finalize_ctx_fn finalize;
uint16_t ctx_size;
uint16_t digest_size;
uint16_t block_size;
uint32_t ctx_size;
uint32_t digest_size;
uint32_t block_size;
} digest_mech_info_t;
@ -78,4 +79,7 @@ int crypto_hmac (const digest_mech_info_t *mi, const char *data, size_t data_len
void crypto_encode_asciihex (const char *bin, size_t bin_len, char *outbuf);
/** Text string "0123456789abcdef" */
const char crypto_hexbytes[17];
#endif

10
app/crypto/sha2.c
View File

@ -172,7 +172,7 @@ void SHA512_Transform(SHA512_CTX*, const sha2_word64*);
/*** SHA-XYZ INITIAL HASH VALUES AND CONSTANTS ************************/
/* Hash constant words K for SHA-256: */
const static sha2_word32 K256[64] = {
const static sha2_word32 K256[64] ICACHE_RODATA_ATTR = {
0x428a2f98UL, 0x71374491UL, 0xb5c0fbcfUL, 0xe9b5dba5UL,
0x3956c25bUL, 0x59f111f1UL, 0x923f82a4UL, 0xab1c5ed5UL,
0xd807aa98UL, 0x12835b01UL, 0x243185beUL, 0x550c7dc3UL,
@ -192,7 +192,7 @@ const static sha2_word32 K256[64] = {
};
/* Initial hash value H for SHA-256: */
const static sha2_word32 sha256_initial_hash_value[8] = {
const static sha2_word32 sha256_initial_hash_value[8] ICACHE_RODATA_ATTR = {
0x6a09e667UL,
0xbb67ae85UL,
0x3c6ef372UL,
@ -204,7 +204,7 @@ const static sha2_word32 sha256_initial_hash_value[8] = {
};
/* Hash constant words K for SHA-384 and SHA-512: */
const static sha2_word64 K512[80] = {
const static sha2_word64 K512[80] ICACHE_RODATA_ATTR = {
0x428a2f98d728ae22ULL, 0x7137449123ef65cdULL,
0xb5c0fbcfec4d3b2fULL, 0xe9b5dba58189dbbcULL,
0x3956c25bf348b538ULL, 0x59f111f1b605d019ULL,
@ -248,7 +248,7 @@ const static sha2_word64 K512[80] = {
};
/* Initial hash value H for SHA-384 */
const static sha2_word64 sha384_initial_hash_value[8] = {
const static sha2_word64 sha384_initial_hash_value[8] ICACHE_RODATA_ATTR = {
0xcbbb9d5dc1059ed8ULL,
0x629a292a367cd507ULL,
0x9159015a3070dd17ULL,
@ -260,7 +260,7 @@ const static sha2_word64 sha384_initial_hash_value[8] = {
};
/* Initial hash value H for SHA-512 */
const static sha2_word64 sha512_initial_hash_value[8] = {
const static sha2_word64 sha512_initial_hash_value[8] ICACHE_RODATA_ATTR = {
0x6a09e667f3bcc908ULL,
0xbb67ae8584caa73bULL,
0x3c6ef372fe94f82bULL,

14
app/include/rom.h
View File

@ -15,6 +15,20 @@ extern void SHA1Init(SHA1_CTX *);
extern void SHA1Final(uint8_t[SHA1_DIGEST_LENGTH], SHA1_CTX *);
extern void SHA1Update(SHA1_CTX *, const uint8_t *, unsigned int);
// MD5 is assumed to match the NetBSD md5.h header
#define MD5_DIGEST_LENGTH 16
typedef struct
{
uint32_t state[5];
uint32_t count[2];
uint8_t buffer[64];
} MD5_CTX;
extern void MD5Init(MD5_CTX *);
extern void MD5Update(MD5_CTX *, const unsigned char *, unsigned int);
extern void MD5Final(unsigned char[MD5_DIGEST_LENGTH], MD5_CTX *);
// base64_encode/decode derived by Cal
// Appears to match base64.h from netbsd wpa utils.
extern unsigned char * base64_encode(const unsigned char *src, size_t len, size_t *out_len);

1
app/include/user_config.h
View File

@ -41,6 +41,7 @@
#define CLIENT_SSL_ENABLE
#define GPIO_INTERRUPT_ENABLE
//#define MD2_ENABLE
#define SHA2_ENABLE
// #define BUILD_WOFS 1

5
app/modules/crypto.c
View File

@ -65,7 +65,6 @@ static int crypto_base64_encode( lua_State* L )
return 1;
}
static const char* byteshex = "0123456789abcdef";
/**
* encoded = crypto.toHex(raw)
*
@ -78,8 +77,8 @@ static int crypto_hex_encode( lua_State* L)
char* out = (char*)c_malloc(len * 2);
int i, j = 0;
for (i = 0; i < len; i++) {
out[j++] = byteshex[msg[i] >> 4];
out[j++] = byteshex[msg[i] & 0xf];
out[j++] = crypto_hexbytes[msg[i] >> 4];
out[j++] = crypto_hexbytes[msg[i] & 0xf];
}
lua_pushlstring(L, out, len*2);
c_free(out);