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Cypher PUMA User Manual Download Page 16

Cypher Technology Ltd  V2.6 (03) December 2011

16

Fig 6. ImageMaker final screen

The Checksum shown at the end should be the same as the checksum noted down
during the making of the Master.

This single .img file can be accessed by WinImage in the normal way.

4.5.4 

Restore the Image Back to a Card

Secondly, the disk image can be copied back to a flash card of equal or greater size
than the flash.img file (and therefore the original flash card). This copied flash card will
behave as an exact clone of the original allowing, for example,  the un-erasing of files
and the forensic examination of file allocation addresses and access dates. On PUMA
this task is performed by the Restore Master function (see Section 4.4.10).

5  Technical Background

5.1 

Master Copy (bit for bit copy)

The PUMA Master Copy stores all the all of the data on the flash card and is therefore
evidentially equivalent to the original flash card. Because the whole of the card is
copied, the Master includes hidden files, deleted files, historical file data fragments,
original time-accessed and time-modified data,  the filing system (FAT), and the boot
sector and partition information.

As such it provides the most secure, evidential backup and allows the most complete
evidential audit trail. It contains everything that was on the flash card and is the same
size (in Kbytes) as the flash card.

There are two formats for the Master

Summary of Contents for PUMA

Page 1: ...PUMA Portable Universal Media Archive User Manual V 2 6 Including PUMABD December 2011 Cypher Technology Ltd Leatherhead UK cyphertechnology com ...

Page 2: ...py 10 4 4 5 To Decrypt Files on the Encrypted Disk 10 4 4 6 Make Master Copy 10 4 4 7 Make HD Master 10 4 4 8 Verify Master Copy against Flash Card 11 4 4 9 Verify Multi Disk Master Set 11 4 4 10 Restore the Master Copy to a Flash Card 11 4 4 11 Restore Multi Disk Master Set 11 4 4 12 Wipe Flash Card 11 4 4 13 Calculate the Checksum of the Flash Card 11 4 4 14 Format Flash card 12 4 4 15 Calculate...

Page 3: ...9 Media history and fragmentation 19 5 2 Disk Verify Read 19 5 3 Working Copy file copy 19 5 4 Card and Disk Checksum 19 5 5 Flash Card Wipe Erasing 20 5 6 System Architecture 20 5 7 Transfer Times 20 5 7 1 Master Creation 20 5 7 2 Master Verify 21 5 7 3 Working Copy Creation 21 5 7 4 Flash Erasure 21 5 7 5 Transfer Time for a Complete Automated Master and Working Copy 21 5 8 RAW File handling 21 ...

Page 4: ...fy and flash media overwrite erase format Flash card forensic wipe process ensures that deleted data cannot be recovered and removes any viruses Fast transfer rates reduces back up time Up to four times faster than laptop for transferring files 20Mbyte sec transfer rate Self contained unit with premium quality full height DVD CDROM R W drive Re mounts and verifies disk after writing to ensure maxi...

Page 5: ...Cypher Technology Ltd V2 6 03 December 2011 5 Fig 1 Front Panel Fig 2 Rear Panel ...

Page 6: ...k button to eject the disk tray Place a BD 1 DVD or CD in the tray 4 Press the TRANSFER button to start the transfer a A Master copy is produced first This consists of the transfer of the data from the card to the disk and a verification read pass On successful completion the Master disk will be ejected and the checksum of the flash card and disk will be shown This can be noted down for future ref...

Page 7: ...the Master to the size of the files Alternatively Full Master may be selected where the Master size is the same size as the flash card This is configured in the Menu under Set Disk Types 7 PUMA has an option to make a video DVD Working Copy where there are MPEG2 files on the flash card This is configured in the Menu under Set Disk Types 8 When PUMA makes a Working File Copy of RAW image files it c...

Page 8: ...d Master Disk and displays the 8 digit Checksum This should be noted down Multiple disk transfer If the data size is bigger than the disk size further disks will be requested Each disk has its own checksum which is displayed at the end of each disk transfer When all the data has been transferred no new disks will be requested Press Continue and the checksum of the whole Master Image will be shown ...

Page 9: ...4 4 1 To Select a Menu function Press the Menu soft key to enter the Menu system The Up down arrow keys are used to select the desired function Press the Go soft key to execute the function If a disk is required for the function this can be inserted before the function is started Otherwise the user is prompted for the disk If the disk size is smaller than the transfer size multiple disks will be c...

Page 10: ...his will transfer all evidential data from the flash card to a BD 1 DVD or CD It will include files deleted files and file metadata The type of Master Compact or Full Master is configured under Set Disk Types in the Menu and the setting is retained through power down 4 4 7 Make HD Master This is an optional feature This function creates a Master copy of a large hard disk on a second empty hard dri...

Page 11: ...t may be inserted back into the camera or may be read on a computer and the images viewed or the files accessed 4 4 11 Restore Multi Disk Master Set As above use a flash card that is the same size or bigger than the original To restore a Master disk set i e more than one disk for a particular flash card the procedure is different for a Full and Compact Master Use a flash card that is the same size...

Page 12: ...creen instructions 4 4 16 Enable JPEG creation on Working Copies This function will turn on the automatic creation of JPEG files on Working Copy disks This will slow down the creation of the Working Copy where RAW image files are present Press the Change soft key to enable disable the option Press the Exit soft key to return to the Menu 4 4 17 Set Disk Types This function sets the disk format for ...

Page 13: ...een DO NOT SWITCH OFF DURING THIS PROCESS OR THE SYSTEM MAY BE UNUSABLE 6 When complete the system will display Installation complete or it will restart the new version of the program 7 Switch off and reboot 8 Check the Version number displayed at boot up is the same as that labelled on the Install CD or DVD 4 4 19 Adjust the Internal Time and Date This function allows the internal real time clock...

Page 14: ...n be used to generate a clone of the original card It has the advantage over the original flash card in that the data cannot be altered accidentally or otherwise Simply inserting a flash card into a computer and opening a file will change the data on the card and therefore the evidence Vital date stamp information can be changed Optical disks are also immune to static There are two possible format...

Page 15: ... run ImageMaker place Master Disk 1 in the PC drive Double click on the ImageMaker icon and run the program Fig 4 ImageMaker screen display under Windows XP Select the destination folder with the Browse tab and then click Start to start conversion When the first disk is complete then load disk 2 Follow the on screen instructions until all disks have been transferred After each disk is completed th...

Page 16: ...e allocation addresses and access dates On PUMA this task is performed by the Restore Master function see Section 4 4 10 5 Technical Background 5 1 Master Copy bit for bit copy The PUMA Master Copy stores all the all of the data on the flash card and is therefore evidentially equivalent to the original flash card Because the whole of the card is copied the Master includes hidden files deleted file...

Page 17: ...mean that the file data cannot be used to create the Master and the whole card is treated as the unused portion of the card Files are not copied to the Master as actual files but as image data If the file system is good the FAT can be used to calculate the location of the file data on the flash card The files are copied from the flash card into the Files folder on the Master disk Having copied all...

Page 18: ... The partition table is not normally updated after it is created but the way the partition table is written will vary from system to system and thus can give some knowledge of the history of the card 5 1 6 File allocation information Most flash media cards use the FAT16 or FAT32 file system When a file e g a JPEG picture file in a camera is created two things happen Firstly the file data is writte...

Page 19: ... by performing a verify read of the disk after it has been written The verify pass itself involves re reading every data bit from the flash card and checking it against every bit on the Master 5 3 Working Copy file copy The Working Copy is a full copy of the directory tree of the flash card or USB drive This means all files and directories are copied Any file types can be copied Hidden and system ...

Page 20: ...f the software has allowed the transfer process to be tailored precisely to the needs of law enforcement and evidence gathering For maximum reliability and security it contains no hard disk and boots from a read only flash file system 5 7 Transfer Times The Media Transfer Station uses a full height high performance CD DVD BD 1 writer This type of drive provides transfer rates up to 20 Mbyte sec co...

Page 21: ...10 Mbytes s which gives an erase time of about 6 minutes for a 4 Gbyte card 5 7 5 Transfer Time for a Complete Automated Master and Working Copy Example For a 4 Gbyte SD card with 6 x 16 Mbytes RAW files the transfer time would be Create Master 5 Mins Master Verify 4 Mins Create Working Copy 3 Mins depends of RAW conversion speed Erase Flash 6 Mins Depends of flash card type and brand Total 18 Min...

Page 22: ...jected once the system is ready for use In an emergency when the system cannot be powered the disk can be ejected by pushing with a blunt rod through the disk eject hole in the front panel 6 2 Contact In case any technical or user assistance is required please contact your distributor or Cypher Technology Limited 5 7 Gravel Hill Leatherhead Surrey KT22 7HG Tel 44 1372 375500 Fax 44 1372 378800 Ema...

Page 23: ...ull Image ISO9660 Compact Master UDF2 01 Encrypted Copy UDF 2 01 Video DVD UDF1 02 Transfer rate BD R DVD R R up to 20 Mbyte sec Software Proprietary Linux Solid state flash read only Start up time M1 2 22 secs Size 190w x 100h x 202d mm Weight 1 92Kg Note 1 Items apply to PUMA BD only 2 Optional external vehicle power adapter 8 Disclaimer Although every effort is made to ensure that the informati...

Page 24: ... 200 AVT F 080C AVT F 145C AVT F 201C AVT F 510C AVT F 810C Canon PowerShot 600 Canon PowerShot A5 Canon PowerShot A5 Zoom Canon PowerShot A50 Canon PowerShot A460 Canon PowerShot A530 Canon PowerShot A610 Canon PowerShot A620 Canon PowerShot A630 Canon PowerShot A640 Canon PowerShot A650 Canon PowerShot A710 IS Canon PowerShot A720 IS Canon PowerShot Pro70 Canon PowerShot Pro90 IS Canon PowerShot...

Page 25: ...Casio EX Z50 Casio EX Z55 Casio Exlim Pro 505 Casio Exlim Pro 600 Casio Exlim Pro 700 Contax N Digital Creative PC CAM 600 Epson R D1 Foculus 531C Fuji FinePix E550 Fuji FinePix E900 Fuji FinePix F700 Fuji FinePix F710 Fuji FinePix F800 Fuji FinePix F810 Fuji FinePix S2Pro Fuji FinePix S3Pro Fuji FinePix S5Pro Fuji FinePix S20Pro Fuji FinePix S100FS Fuji FinePix S5000 Fuji FinePix S5100 S5500 Fuji...

Page 26: ...dak KAI 0340 Konica KD 400Z Konica KD 510Z Leaf Aptus 17 Leaf Aptus 22 Leaf Aptus 54S Leaf Aptus 65 Leaf Aptus 75 Leaf Aptus 75S Leaf Cantare Leaf CatchLight Leaf CMost Leaf DCB2 Leaf Valeo 6 Leaf Valeo 11 Leaf Valeo 17 Leaf Valeo 22 Leaf Volare Leica Digilux 2 Leica Digilux 3 Leica D LUX2 Leica D LUX3 Leica V LUX1 Logitech Fotoman Pixtura Mamiya ZD Micron 2010 Minolta RD175 Minolta DiMAGE 5 Minol...

Page 27: ...Nikon E3700 Nikon E4300 Nikon E4500 Nikon E5000 Nikon E5400 Nikon E5700 Nikon E8400 Nikon E8700 Nikon E8800 Nikon Coolpix P6000 Nikon Coolpix S6 Nokia N95 Olympus C3030Z Olympus C5050Z Olympus C5060WZ Olympus C7070WZ Olympus C70Z C7000Z Olympus C740UZ Olympus C770UZ Olympus C8080WZ Olympus E 1 Olympus E 3 Olympus E 10 Olympus E 20 Olympus E 300 Olympus E 330 Olympus E 400 Olympus E 410 Olympus E 4...

Page 28: ...x Optio S4 Pentax Optio 33WR Pentax Optio 750Z Phase One LightPhase Phase One H 10 Phase One H 20 Phase One H 25 Phase One P 20 Phase One P 25 Phase One P 30 Phase One P 45 Pixelink A782 Polaroid x530 Rollei d530flex RoverShot 3320af Samsung GX 1S Samsung GX 10 Sarnoff 4096x5440 Sigma SD9 Sigma SD10 Sigma SD14 Sinar 3072x2048 Sinar 4080x4080 Sinar 4080x5440 Sinar STI format SMaL Ultra Pocket 3 SMa...

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