void gt_md5_encoder_reset(GtMD5Encoder *enc)
{
gt_assert(enc);
enc->len = 0;
enc->status = 0;
memset(enc->d_old, 0, sizeof (WORD32)*4);
memset(enc->wbuff, 0, sizeof (WORD32)*16);
inic_digest(enc->d);
}
GtMD5Encoder* gt_md5_encoder_new()
{
GtMD5Encoder *enc = gt_malloc(sizeof (GtMD5Encoder));
enc->len = 0;
enc->status = 0;
memset(enc->d_old, 0, sizeof (WORD32)*4);
memset(enc->wbuff, 0, sizeof (WORD32)*16);
inic_digest(enc->d);
return enc;
}
void md5 (const char *message, long len, char *output) {
WORD32 d[4];
int status = 0;
long i = 0;
inic_digest(d);
while (status != 2) {
WORD32 d_old[4];
WORD32 wbuff[16];
int numbytes = (len-i >= 64) ? 64 : len-i;
/*salva os valores do vetor digest*/
d_old[0]=d[0]; d_old[1]=d[1]; d_old[2]=d[2]; d_old[3]=d[3];
status = converte(wbuff, message+i, numbytes, status);
if (status == 2) put_length(wbuff, len);
digest(wbuff, d);
d[0]+=d_old[0]; d[1]+=d_old[1]; d[2]+=d_old[2]; d[3]+=d_old[3];
i += numbytes;
}
word32tobytes(d, output);
}
static void
md5_stream(lua_State *L, char *output) {
WORD32 d[4];
char tmp[64];
size_t lastlen = 0;
size_t len = 0;
size_t total;
lua_pushnil(L); // read_next would pop 1
const char * message = read_next(L, &len);
if (message == NULL) {
return md5("", 0, output); // empty string
}
total = len;
inic_digest(d);
do {
lastlen = md5_cat(tmp, lastlen, message, len, d);
message = read_next(L, &len);
total += len;
} while (message != NULL);
md5_close(tmp, lastlen, d, total);
word32tobytes(d, output);
}
static void md5 (const char *message, size_t len, char * output) {
WORD32 d[4];
inic_digest(d);
md5_close(message, len, d, len);
word32tobytes(d, output);
}
