CalvinBackup/CS35L27-Covert-Channel-Analysis
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Update statistical summary appendix with new findings and details as of 2025-12-20.

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Joseph Goydish II
2025-12-20 16:25:42 -05:00
parent 2a51e1a928
commit 5b7a2bbb4c
1 changed files with 4 additions and 8 deletions
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Appendices/Appendix_B_statistical_summary.csv
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@@ -1,11 +1,9 @@
# I2S Configuration Types
Type,Count,Percentage
TX only (0x01),3,50.0%
RX only (0x02),1,16.7%
TX+RX (0x03),1,16.7%
Reset (0x04),1,16.7%
# Analysis Risk Matrix
Aspect,Finding,Certainty,Risk
I2S Bidirectional,Confirmed,95%,CRITICAL
Extended Cmd 0xC7,Read/Write,90%,CRITICAL
@@ -16,14 +14,12 @@ Buffer Ops,Exists,70%,MODERATE
Covert Channels,Multiple,85%,HIGH
Runtime Active,1600+ cmds,100%,CRITICAL
# GPIO Operation Context
GPIO Operation,Offset,Context
CLR,0xE080CE,I2S config BEFORE, External write BEFORE
CLR,0xE0841A,I2S config AFTER, External write AFTER
CLR,0xE08452,I2S config BEFORE, External write BEFORE
SETB,0xE08593,I2S config BEFORE, External write BEFORE
CLR,0xE080CE,"I2S config BEFORE, External write BEFORE"
CLR,0xE0841A,"I2S config AFTER, External write AFTER"
CLR,0xE08452,"I2S config BEFORE, External write BEFORE"
SETB,0xE08593,"I2S config BEFORE, External write BEFORE"
# GPIO Context Summary
Description,Value
Total GPIO 0x38 ops,8
Within I2S context,4
1 # I2S Configuration Types Type Count Percentage
# I2S Configuration Types
1 Type,Count,Percentage Type Count Percentage
2 TX only (0x01),3,50.0% TX only (0x01) 3 50.0%
3 RX only (0x02),1,16.7% RX only (0x02) 1 16.7%
4 TX+RX (0x03),1,16.7% TX+RX (0x03) 1 16.7%
5 Reset (0x04),1,16.7% Reset (0x04) 1 16.7%
6 # Analysis Risk Matrix Aspect Finding Certainty
Aspect,Finding,Certainty,Risk
7 I2S Bidirectional,Confirmed,95%,CRITICAL I2S Bidirectional Confirmed 95%
8 Extended Cmd 0xC7,Read/Write,90%,CRITICAL Extended Cmd 0xC7 Read/Write 90%
9 Extended Cmd 0x81,Unknown,40%,MODERATE Extended Cmd 0x81 Unknown 40%
14 Runtime Active,1600+ cmds,100%,CRITICAL Runtime Active 1600+ cmds 100%
15 # GPIO Operation Context GPIO Operation Offset Context
16 GPIO Operation,Offset,Context CLR 0xE080CE I2S config BEFORE, External write BEFORE
CLR,0xE080CE,I2S config BEFORE, External write BEFORE
17 CLR,0xE0841A,I2S config AFTER, External write AFTER CLR 0xE0841A I2S config AFTER, External write AFTER
18 CLR,0xE08452,I2S config BEFORE, External write BEFORE CLR 0xE08452 I2S config BEFORE, External write BEFORE
19 SETB,0xE08593,I2S config BEFORE, External write BEFORE SETB 0xE08593 I2S config BEFORE, External write BEFORE
20 # GPIO Context Summary Description Value
21 Description,Value Total GPIO 0x38 ops 8
22 Total GPIO 0x38 ops,8 Within I2S context 4
Within I2S context,4
23 Percent within I2S context,50.0% Percent within I2S context 50.0%
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