/** * @brief decrypt the msg and save it to the buffer passed in */ void decryptor(char *_buffer, int _n, int _d) { unsigned int i=0, j=0; char temp[BUFFESIZE]; int build_temp[BUFFESIZE]; char de_temp[BUFFESIZE]; memset(temp, 0, BUFFESIZE); memset(build_temp, 0, BUFFESIZE); memset(de_temp, 0, BUFFESIZE); strcpy(temp, _buffer); while(2*i < strlen(temp)) { build_temp[i] = ((temp[2*i] & 0x0f)<<4) | (temp[2*i+1] & 0x0f); i++; } while(build_temp[j] != 0) { de_temp[j] = repeatsquare(build_temp[j], _d, _n); j++; } strcpy(_buffer, de_temp); }
/** * @brief decrypt the msg and save it to the buffer passed in */ void decryptor(char *_buffer, int _n, int _d) { unsigned int i=0, j=0; char temp[BUFFESIZE]; int build_temp[BUFFESIZE]; char de_temp[BUFFESIZE]; memset(temp, 0, BUFFESIZE); memset(build_temp, 0, BUFFESIZE); memset(de_temp, 0, BUFFESIZE); strcpy(temp, _buffer); while(2*i < strlen(temp)) { build_temp[i] = ((temp[2*i] & 0x0f)<<4) | (temp[2*i+1] & 0x0f); i++; } while(build_temp[j] != 0) { de_temp[j] = repeatsquare(build_temp[j], _d, _n); j++; } printf("@alan n=%d d=%d\n", _n, _d); printf("@alan lenth=%d\n",strlen(temp)); printf("@alan the b(m)=%d\n",build_temp[0]); printf("@alan the d(b(m))=%s\n",de_temp ); }