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TOTAL DOWNLOADED
TASK INFO: ( Realspark )
Flash device type |
: USB Flash |
Controller marking |
: PS2251-09-V |
Number of memory chips |
: 1 |
Number of parts |
: 1 |
Memory chip marking |
: HVKK0FG |
Memory chip ID |
: 0x983C98B3 |
Capacity(Mb) |
: 32768 |
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SOLUTIONS: - Variant 1: (29.07.2021) Author: Robin [31]
Results of preparation:
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Initial memory chips (1) |
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Cut Bad Bytes (software/hardware) |
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Page XOR transformation (ID_XOR 2582) |
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Page size transformation |
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Split by block (Block Size 24576) |
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Join by block for pairs (Block Size 32) |
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Rotation |
Algorithm of analysis:
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Block Number Type 1 [0000]Marker Pos | 512 | Block Size | 49152 | Start analize | 0 | Mask | 0xFFFF | ID | 1234 | Full Block | NO | |
Conditions |
Pos | Mask | Act | Value> | Result |
512 | 0x1F | - | 0x00 | = marker med | 513 | 0xF8 | - | 0x00 | = marker med | 514 | 0xFC | - | 0x00 | = marker low |
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- Variant 2: (15.10.2020) Author: velkoo [26]
Results of preparation:
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Initial memory chips (1) |
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Page XOR transformation (ID_XOR 2582) |
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Page size transformation |
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Split by block (Block Size 24576) |
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Join by block for pairs (Block Size 32) |
Algorithm of analysis:
- Variant 3: (09.08.2021) Author: rcz [69]
Results of preparation:
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Initial memory chips (1) |
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Page XOR transformation (ID_XOR 2419) |
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Page size transformation |
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Split by block (Block Size 18432) |
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Join by block for pairs (Block Size 32) |
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Rotation |
Algorithm of analysis:
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Block Number Type 1 [0000]Marker Pos | 513 | Block Size | 36864 | Start analize | 0 | Mask | 0xFCFC | ID | 1234 | Full Block | NO | |
Conditions |
Pos | Mask | Act | Value> | Result |
512 | 0x1F | - | 0x00 | = marker hi | 513 | 0xF8 | - | 0x00 | = marker med | 514 | 0xFC | - | 0x00 | = marker low |
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- Variant 4: (09.08.2021) Author: rcz [69]
Results of preparation:
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Initial memory chips (1) |
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Page XOR transformation (ID_XOR 2419) |
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Page size transformation |
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Split by block (Block Size 18432) |
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Join by block for pairs (Block Size 32) |
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Rotation |
Algorithm of analysis:
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Block Number Type 1 [0000]Marker Pos | 513 | Block Size | 36864 | Start analize | 0 | Mask | 0xFCFC | ID | 1234 | Full Block | NO | |
Conditions |
Pos | Mask | Act | Value> | Result |
512 | 0x1F | - | 0x00 | = marker hi | 513 | 0xF8 | - | 0x00 | = marker med | 514 | 0xFC | - | 0x00 | = marker low |
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- Variant 5: (18.02.2020) Author: Realspark [18]
Results of preparation:
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Initial memory chips (1) |
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Page XOR transformation (ID_XOR 2582) |
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Page size transformation |
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Split by block (Block Size 24576) |
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Join by block for pairs (Block Size 32) |
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Rotation |
Algorithm of analysis:
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Block Number Type 1 [0000]Marker Pos | 513 | Block Size | 49152 | Start analize | 0 | Mask | 0xFCFC | ID | 1234 | Full Block | NO |
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- Variant 6: (18.02.2020) Author: Realspark [18]
Results of preparation:
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Initial memory chips (1) |
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Page XOR transformation (ID_XOR 2582) |
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Page size transformation |
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Split by block (Block Size 24576) |
|
Join by block for pairs (Block Size 32) |
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Rotation |
Algorithm of analysis:
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Block Number Type 1 [0000]Marker Pos | 513 | Block Size | 49152 | Start analize | 0 | Mask | 0xFCFC | ID | 1234 | Full Block | NO |
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- Variant 7: (15.07.2020) Author: UDMAbod [79]
Results of preparation:
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Initial memory chips (1) |
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Page XOR transformation (ID_XOR 2582) |
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Page size transformation |
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Split by block (Block Size 24576) |
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Join by block for pairs (Block Size 32) |
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Rotation |
Algorithm of analysis:
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Block Number Type 1 [0000]Marker Pos | 513 | Block Size | 49152 | Start analize | 0 | Mask | 0xFCFC | ID | 1234 | Full Block | NO |
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- Variant 8: (25.11.2022) Author: yunova [171]
Results of preparation:
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Initial memory chips (1) |
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Cut Bad Bytes (software/hardware) |
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Page XOR transformation (ID_XOR 2582) |
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Page size transformation |
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Split by block (Block Size 24576) |
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Join by block for pairs (Block Size 32) |
|
Rotation |
Algorithm of analysis:
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Block Number Type 1 [0000]Marker Pos | 512 | Block Size | 49152 | Start analize | 0 | Mask | 0xFFFF | ID | 1234 | Full Block | NO | |
Conditions |
Pos | Mask | Act | Value> | Result |
512 | 0x1F | - | 0x00 | = marker med | 513 | 0xF8 | - | 0x00 | = marker med | 514 | 0xFC | - | 0x00 | = marker low |
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