implemented padding in decrypter
FUCKKKKK remember how I mentioned that creating padding in encrypter was pain? This, compared to the encrypter is like getting stuck up your ass and getting it shaked by a fucking gorilla compared to stepping on a lego brick. FUCK.
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@ -23,7 +23,9 @@ along with this program. If not, see <https://www.gnu.org/licenses/>.
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#include <stdlib.h>
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#include <sys/time.h>
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#include <why2/crypto.h>
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#include <why2/flags.h>
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#include <why2/llist.h>
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#include <why2/memory.h>
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#include <why2/misc.h>
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@ -175,6 +177,59 @@ why2_output_flags why2_decrypt_text(char *text, char *key)
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returning_text[i] = text_key_chain[i];
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}
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//REMOVE PADDING
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if (why2_get_flags().padding > 0)
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{
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why2_list_t split_text = WHY2_LIST_EMPTY; //LIST OF returning_text SPLIT INTO CHARS
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//ADD CHARS
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for (unsigned long i = 0; i < strlen(returning_text); i++)
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{
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why2_list_push(&split_text, &(returning_text[i]), sizeof(returning_text[i])); //ADD
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}
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//OBTAIN SEED FROM key_new
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srand(why2_sum_segment(key_new));
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//GET RANDOM SEQUENCE USED IN ENCRYPTION
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why2_list_t random_sequence = WHY2_LIST_EMPTY;
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for (unsigned long i = 0; i < why2_get_flags().padding; i++)
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{
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int rand_buffer = rand();
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why2_list_push(&random_sequence, &rand_buffer, sizeof(int)); //ADD
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}
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why2_list_reverse(&random_sequence, sizeof(int)); //REVERSE
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//REMOVE PADDING FROM split_text LIST
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for (unsigned long i = 0; i < why2_get_flags().padding; i++)
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{
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unsigned long random_position = (unsigned long) (*(int*) random_sequence.head -> value % (why2_list_get_size(&split_text) - 1)); //GET RANDOM POSITION
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//REMOVE FROM THE LIST
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why2_list_remove_at(&split_text, random_position);
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//DEALLOCATION
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why2_list_remove_at(&random_sequence, 0);
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}
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//PUT PADDED TEXT INTO text_new
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returning_text = why2_recalloc(returning_text, why2_list_get_size(&split_text) + 1, sizeof(char));
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why2_node_t *buffer = split_text.head;
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why2_node_t *buffer_2;
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unsigned long index_buffer = 0;
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do
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{
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returning_text[index_buffer++] = *(char*) buffer -> value; //COPY VALUE
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buffer_2 = buffer;
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buffer = buffer -> next; //ITER
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why2_deallocate(buffer_2 -> value); //DEALLOCATION
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why2_deallocate(buffer_2); //DEALLOCATION
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} while (buffer != NULL);
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}
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//GET FINISH TIME
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gettimeofday(&finish_time, NULL);
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