| # JPEG Dictionary for libFuzzer |
| # Contains JPEG markers, common signatures, and important byte patterns |
| |
| # ================================================== |
| # JPEG markers (2-byte sequences starting with 0xFF) |
| # ================================================== |
| |
| # Start Of Image/End Of Image (SOI/EOI) |
| soi="\xff\xd8" |
| eoi="\xff\xd9" |
| |
| # Start Of Frame (SOF0-SOF15) |
| |
| # Baseline DCT |
| sof0="\xff\xc0" |
| # Extended sequential DCT, Huffman coding |
| sof1="\xff\xc1" |
| # Progressive DCT, Huffman coding |
| sof2="\xff\xc2" |
| # Lossless, Huffman coding |
| sof3="\xff\xc3" |
| # Differential sequential DCT, Huffman coding |
| sof5="\xff\xc5" |
| # Differential progressive DCT, Huffman coding |
| sof6="\xff\xc6" |
| # Differential lossless, Huffman coding |
| sof7="\xff\xc7" |
| # Sequential DCT, arithmetic coding |
| sof9="\xff\xc9" |
| # Progressive DCT, arithmetic coding |
| sof10="\xff\xca" |
| # Lossless, arithmetic coding |
| sof11="\xff\xcb" |
| # Differential sequential DCT, arithmetic coding |
| sof13="\xff\xcd" |
| # Differential progressive DCT, arithmetic coding |
| sof14="\xff\xce" |
| # Differential lossless, arithmetic coding |
| sof15="\xff\xcf" |
| |
| # Define Huffman Tables (DHT) |
| dht="\xff\xc4" |
| |
| # Define Arithmetic Coding conditioning (DAC) |
| dac="\xff\xcc" |
| |
| # Define Quantization Tables (DQT) |
| dqt="\xff\xdb" |
| |
| # Define Restart Interval (DRI) |
| dri="\xff\xdd" |
| |
| # Start Of Scan (SOS) |
| sos="\xff\xda" |
| |
| # Restart (RST0-RST7) |
| rst0="\xff\xd0" |
| rst1="\xff\xd1" |
| rst2="\xff\xd2" |
| rst3="\xff\xd3" |
| rst4="\xff\xd4" |
| rst5="\xff\xd5" |
| rst6="\xff\xd6" |
| rst7="\xff\xd7" |
| |
| # Application (APP0-APP15) |
| app0="\xff\xe0" |
| app1="\xff\xe1" |
| app2="\xff\xe2" |
| app3="\xff\xe3" |
| app4="\xff\xe4" |
| app5="\xff\xe5" |
| app6="\xff\xe6" |
| app7="\xff\xe7" |
| app8="\xff\xe8" |
| app9="\xff\xe9" |
| app10="\xff\xea" |
| app11="\xff\xeb" |
| app12="\xff\xec" |
| app13="\xff\xed" |
| app14="\xff\xee" |
| app15="\xff\xef" |
| |
| # Comment (COM) |
| com="\xff\xfe" |
| |
| # Define Number of Lines (DNL) |
| dnl="\xff\xdc" |
| |
| # Expand reference components (EXP) |
| exp="\xff\xdf" |
| |
| # JPEG extensions (JPG0-JPG13) |
| jpg0="\xff\xf0" |
| jpg1="\xff\xf1" |
| jpg2="\xff\xf2" |
| jpg3="\xff\xf3" |
| jpg4="\xff\xf4" |
| jpg5="\xff\xf5" |
| jpg6="\xff\xf6" |
| jpg7="\xff\xf7" |
| jpg8="\xff\xf8" |
| jpg9="\xff\xf9" |
| jpg10="\xff\xfa" |
| jpg11="\xff\xfb" |
| jpg12="\xff\xfc" |
| jpg13="\xff\xfd" |
| |
| # Temporary (TEM) |
| tem="\xff\x01" |
| |
| # Reserved (RES) |
| res_02="\xff\x02" |
| res_bf="\xff\xbf" |
| |
| # Fill byte (byte stuffing) |
| fill="\xff\x00" |
| |
| # ============================== |
| # Application segment signatures |
| # ============================== |
| |
| # JFIF signature (in APP0) |
| jfif="JFIF\x00" |
| jfif_ver="\x01\x01" |
| jfif_ver2="\x01\x02" |
| |
| # JFXX signature (in APP0) |
| jfxx="JFXX\x00" |
| |
| # Exif signature (in APP1) |
| exif="Exif\x00\x00" |
| |
| # XMP signature (in APP1) |
| xmp="http://ns.adobe.com/xap/1.0/\x00" |
| |
| # ICC Profile signature (in APP2) |
| icc="ICC_PROFILE\x00" |
| |
| # Adobe signature (in APP14) |
| adobe="Adobe\x00" |
| |
| # Photoshop signature (in APP13) |
| photoshop="Photoshop 3.0\x008BIM" |
| |
| # ============================ |
| # TIFF/Exif byte order markers |
| # ============================ |
| |
| tiff_le="II\x2a\x00" |
| tiff_be="MM\x00\x2a" |
| |
| # ================================= |
| # Common length values (big-endian) |
| # ================================= |
| |
| len_2="\x00\x02" |
| len_4="\x00\x04" |
| len_8="\x00\x08" |
| len_16="\x00\x10" |
| len_17="\x00\x11" |
| len_32="\x00\x20" |
| len_64="\x00\x40" |
| len_128="\x00\x80" |
| len_256="\x01\x00" |
| len_512="\x02\x00" |
| len_1024="\x04\x00" |
| |
| # ============================================ |
| # Image dimensions (common values, big-endian) |
| # ============================================ |
| |
| dim_1="\x00\x01" |
| dim_8="\x00\x08" |
| dim_16="\x00\x10" |
| dim_64="\x00\x40" |
| dim_128="\x00\x80" |
| dim_256="\x01\x00" |
| dim_512="\x02\x00" |
| dim_1024="\x04\x00" |
| dim_2048="\x08\x00" |
| dim_4096="\x10\x00" |
| |
| # ======================== |
| # Component counts and IDs |
| # ======================== |
| |
| comp_1="\x01" |
| comp_2="\x02" |
| comp_3="\x03" |
| comp_4="\x04" |
| |
| # Component IDs (Y, Cb, Cr) |
| comp_y="\x01" |
| comp_cb="\x02" |
| comp_cr="\x03" |
| comp_r="\x52" |
| comp_g="\x47" |
| comp_b="\x42" |
| |
| # =========================================== |
| # Sampling factors (packed H:V into one byte) |
| # =========================================== |
| |
| samp_11="\x11" |
| samp_21="\x21" |
| samp_12="\x12" |
| samp_22="\x22" |
| samp_41="\x41" |
| samp_14="\x14" |
| samp_44="\x44" |
| |
| # ====================== |
| # Quantization table IDs |
| # ====================== |
| |
| qt_0="\x00" |
| qt_1="\x01" |
| qt_2="\x02" |
| qt_3="\x03" |
| qt_16bit_0="\x10" |
| qt_16bit_1="\x11" |
| |
| # ======================================= |
| # Huffman table class and ID combinations |
| # ======================================= |
| |
| ht_dc_0="\x00" |
| ht_dc_1="\x01" |
| ht_dc_2="\x02" |
| ht_dc_3="\x03" |
| ht_ac_0="\x10" |
| ht_ac_1="\x11" |
| ht_ac_2="\x12" |
| ht_ac_3="\x13" |
| |
| # ===================== |
| # Data precision values |
| # ===================== |
| |
| prec_8="\x08" |
| prec_12="\x0c" |
| prec_16="\x10" |
| |
| # ===================================== |
| # Huffman code lengths (for DHT marker) |
| # ===================================== |
| |
| huff_0_codes="\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" |
| huff_std_dc="\x00\x01\x05\x01\x01\x01\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00" |
| huff_std_ac="\x00\x02\x01\x03\x03\x02\x04\x03\x05\x05\x04\x04\x00\x00\x01\x7d" |
| |
| # ======================= |
| # Restart interval values |
| # ======================= |
| |
| ri_0="\x00\x00" |
| ri_1="\x00\x01" |
| ri_8="\x00\x08" |
| ri_16="\x00\x10" |
| ri_100="\x00\x64" |
| ri_256="\x01\x00" |
| |
| # ================== |
| # Scan header values |
| # ================== |
| |
| scan_start_0="\x00" |
| scan_start_1="\x01" |
| scan_end_0="\x00" |
| scan_end_63="\x3f" |
| scan_approx_0="\x00" |
| scan_approx_10="\x10" |
| scan_approx_01="\x01" |
| scan_approx_11="\x11" |
| scan_approx_21="\x21" |
| |
| # =================================== |
| # Progressive scan approximation bits |
| # =================================== |
| |
| ah_al_00="\x00" |
| ah_al_10="\x10" |
| ah_al_20="\x20" |
| ah_al_01="\x01" |
| ah_al_11="\x11" |
| ah_al_21="\x21" |
| ah_al_12="\x12" |
| |
| # ========================= |
| # Lossless predictor values |
| # ========================= |
| |
| pred_0="\x00" |
| pred_1="\x01" |
| pred_2="\x02" |
| pred_3="\x03" |
| pred_4="\x04" |
| pred_5="\x05" |
| pred_6="\x06" |
| pred_7="\x07" |
| |
| # ============================== |
| # Common marker segment patterns |
| # ============================== |
| |
| # Minimal DQT segment (64-byte table + header) |
| dqt_hdr="\xff\xdb\x00\x43\x00" |
| |
| # Minimal DHT segment header |
| dht_hdr="\xff\xc4\x00\x1f\x00" |
| |
| # Minimal SOF0 segment header (baseline) |
| sof0_hdr="\xff\xc0\x00\x0b\x08" |
| |
| # Minimal SOS segment header |
| sos_hdr="\xff\xda\x00\x08\x01" |
| |
| # Typical 3-component SOS |
| sos_3comp="\xff\xda\x00\x0c\x03\x01\x00\x02\x11\x03\x11\x00\x3f\x00" |
| |
| # ================ |
| # Edge case values |
| # ================ |
| |
| zero="\x00" |
| one="\x01" |
| max_byte="\xff" |
| mid="\x80" |
| val_7f="\x7f" |
| val_fe="\xfe" |
| |
| # Large values (for dimension fuzzing) |
| large_dim="\xff\xff" |
| large_len="\xff\xfe" |
| |
| # =============================== |
| # Entropy coding segment patterns |
| # =============================== |
| |
| # Common DC coefficient patterns |
| dc_zero="\x00" |
| dc_small="\xf0" |
| |
| # EOB (End Of Block) for AC |
| eob="\x00" |
| |
| # ZRL (Zero Run Length) - 16 zeros |
| zrl="\xf0" |
| |
| # =========================== |
| # JPEG file structure markers |
| # =========================== |
| |
| # SOI + APP0 (JFIF header start) |
| soi_app0="\xff\xd8\xff\xe0" |
| |
| # Minimal JFIF APP0 segment |
| jfif_app0="\xff\xe0\x00\x10JFIF\x00\x01\x01\x00\x00\x01\x00\x01\x00\x00" |
| |
| # SOI + SOF0 (baseline start) |
| soi_sof0="\xff\xd8\xff\xc0" |
| |
| # SOI + SOF2 (progressive start) |
| soi_sof2="\xff\xd8\xff\xc2" |
| |
| # DQT + SOF sequence |
| dqt_sof="\xff\xdb\xff\xc0" |
| |
| # SOF + DHT sequence |
| sof_dht="\xff\xc0\xff\xc4" |
| |
| # DHT + SOS sequence |
| dht_sos="\xff\xc4\xff\xda" |
| |
| # SOS + EOI (end of scan + End Of Image) |
| sos_eoi="\xff\xda\xff\xd9" |
| |
| # ==================== |
| # ICC profile patterns |
| # ==================== |
| |
| icc_sig="ICC_PROFILE\x00\x01\x01" |
| icc_multi_1="ICC_PROFILE\x00\x01\x02" |
| icc_multi_2="ICC_PROFILE\x00\x02\x02" |
| |
| # ========================== |
| # Arithmetic coding patterns |
| # ========================== |
| |
| arith_cond="\x00\x00" |
| arith_kx="\x00\x05" |
| |
| # ==================================== |
| # Color transform values (Adobe APP14) |
| # ==================================== |
| |
| adobe_transform_0="\x00" |
| adobe_transform_1="\x01" |
| adobe_transform_2="\x02" |
