## Chart: Timing Analysis by Cookie Value Across Bytes ### Overview The image displays four horizontal bar graphs (Bytes 0-3) comparing timing measurements (ns) across different cookie values. Each graph contains multiple blue data points clustered near 0 ns and a single red outlier point positioned at higher timing values. The x-axis categorizes cookie values, while the y-axis represents timing in nanoseconds. ### Components/Axes - **X-axis (Guess)**: - Byte 0: `cookie=0`, `cookie=5`, `cookie=9`, `cookie=A`, `cookie=H`, `cookie=M`, `cookie=S`, `cookie=Z` - Byte 1: `cookie=S0`, `cookie=S5`, `cookie=S9`, `cookie=SA`, `cookie=SE`, `cookie=SH`, `cookie=SM`, `cookie=SS`, `cookie=SZ` - Byte 2: `cookie=SE0`, `cookie=SE5`, `cookie=SE8`, `cookie=SEC`, `cookie=SEH`, `cookie=SEM`, `cookie=SES`, `cookie=SEZ` - Byte 3: `cookie=SE80`, `cookie=SE89`, `cookie=SE8A`, `cookie=SE8M`, `cookie=SE8Z`, `cookie=SECO`, `cookie=SECA`, `cookie=SECR`, `cookie=SECRZ` - **Y-axis (Timing [ns])**: Logarithmic scale from 0 to 1.5×10⁴ ns. - **Legend**: No explicit legend, but red dots represent outliers (confirmed by color matching). ### Detailed Analysis - **Byte 0**: - Blue dots clustered at 0 ns for all categories except `cookie=S` (red dot at ~5×10³ ns). - **Byte 1**: - Blue dots near 0 ns; red dot at `cookie=SA` (~5×10³ ns). - **Byte 2**: - Blue dots near 0 ns; red dot at `cookie=SE8` (~1×10⁴ ns). - **Byte 3**: - Blue dots near 0 ns; red dot at `cookie=SECR` (~1.5×10⁴ ns). ### Key Observations 1. **Outlier Pattern**: Red dots consistently appear at specific cookie values (`S`, `SA`, `SE8`, `SECR`), indicating anomalous timing spikes. 2. **Timing Distribution**: - Most cookie values exhibit near-zero timing (blue dots). - Outliers increase in magnitude with byte progression (5×10³ → 1.5×10⁴ ns). 3. **Cookie Labeling**: - Byte 0 uses single-character cookies (A-Z). - Bytes 1-3 use structured prefixes (e.g., `SE8`, `SECR`), suggesting hierarchical categorization. ### Interpretation The data demonstrates that **specific cookie values** (`S`, `SA`, `SE8`, `SECR`) are associated with **disproportionately high timing measurements** compared to others. This suggests: - **Anomalies**: These cookies may trigger resource-intensive operations (e.g., encryption, validation). - **Hierarchical Impact**: Later bytes (Bytes 2-3) show larger timing outliers, implying deeper processing layers (e.g., session management) are more sensitive to certain cookie configurations. - **Design Implications**: The outlier cookies could represent edge cases requiring optimization or security scrutiny. No textual content in non-English languages was observed. All axis labels and categories are explicitly transcribed.