what is RSA,OTP CID,FLASH CID - GSM-Forum

zonetrichur · 05-11-2006, 19:17

I KNOW SE PHONES MEMORY DEVIDED IN TO FOUR-MAIN,FS,EEROM,GDFS
in it where is the lock? is it in EEROM?
2.what is firmware?its difference from main,fs,eerom,gdfs
3.when a set unlock,what happens?that is which area rewrited
4.i have also heard about RSA,OTP CID,FLASH CID.but i dont know its details.have these terms importance in unlocking?if yes -REASON

saphiens · 05-11-2006, 20:49

Maby a small sticky that explains stuff like CID and RSA would be a good idea?! For us newbies

SRNOURI · 05-11-2006, 22:11

Quote:

Originally Posted by saphiens

Maby a small sticky that explains stuff like CID and RSA would be a good idea?! For us newbies

Yes,I agree with you.I think it's better that some of our expert in SE in this forum come here and explain about that subject.

Zaihtam · 05-12-2006, 08:38

RSA = Rivest Shamir Adelman Encryption, it's an encryption algorithm, SEMC phone security use this algorithm.

OTP = One Time Programing. this refer to a Memory IC area or type that can be only be written once.

Flash = It refer a Memory IC that can be written again and again.

CID = Certificate Identification. CID refer to what version of Certificate that have been used in the encryption. CID information is acquiered from OTP area and flash area, if it doesn't match your phone will have problem.

Good Luck...

chernobel · 05-12-2006, 11:32

thanks for this informations man good job

zonetrichur · 05-12-2006, 14:50

please i want more explanation to my questions
I KNOW SE PHONES MEMORY DEVIDED IN TO FOUR-MAIN,FS,EEROM,GDFS
in it where is the lock? is it in EEROM?
2.what is firmware?its difference from main,fs,eerom,gdfs
3.when a set unlock,what happens?that is which area rewrited
4.i have also heard about RSA,OTP CID,FLASH CID.but i dont know its details.have these terms importance in unlocking?if yes -REASON

SRNOURI · 05-12-2006, 18:52

Quote:

Originally Posted by Zaihtam

RSA = Rivest Shamir Adelman Encryption, it's an encryption algorithm, SEMC phone security use this algorithm.

OTP = One Time Programing. this refer to a Memory IC area or type that can be only be written once.

Flash = It refer a Memory IC that can be written again and again.

CID = Certificate Identification. CID refer to what version of Certificate that have been used in the encryption. CID information is acquiered from OTP area and flash area, if it doesn't match your phone will have problem.

Good Luck...

Thanks dear friend.They were very good information.
If it's possible please explain more about SE Memories.
B.R.

zonetrichur · 10-15-2006, 12:23

Hallow,
I Asked Above Quetions Near Three Months Ago.in Between I Bought Se Tool And Usbsmart And cruiser. Did Many Se Phones.now I Have Confidence To Do A Se Dead Or Unlock.but I Have Many Doubts About Main,fs,eeprom,erom,gdfs,otp,rsa,cid S.

I Think In Old Se Phones Phone Memory Devided In To Three(k300,k500,k700 Etc).main,fs,gdfs.(in It Gdfs Contains Eeprom And Eerom).
I Know Old Se Phones Has Cid 29 And 36 Only(red And Brown).this Details Lies In Otp Area.so Before Go To Flash /unlock Must Know The Cid Version ?am I Correct?
I Think The Rsa Concept For Unlockers.this Area Is Rewritted.my Doubt Is Where Is This Area In Phone Memory In Se Phones(main,fs,gdfs,eeprom,erom).this Information Is Good For Back Up Before Unlock(to On Set Again)

amitks_in · 10-15-2006, 17:47

If u just spare some time, and read thouroghly the posts of this guy ! u will find some good info's ! also u can Force him to reply your questions ! I think he will not mind this ! but as somethings are TRADE secrets which he will not share !

Best Luck !

http:///vbb/member.php?u=1841

05-11-2006, 19:17	#1 (permalink)
zonetrichur No Life Poster Join Date: Mar 2006 Location: india Posts: 1,395 Member: 239168 Status: Offline Thanks Meter: 104	what is RSA,OTP CID,FLASH CID I KNOW SE PHONES MEMORY DEVIDED IN TO FOUR-MAIN,FS,EEROM,GDFS in it where is the lock? is it in EEROM? 2.what is firmware?its difference from main,fs,eerom,gdfs 3.when a set unlock,what happens?that is which area rewrited 4.i have also heard about RSA,OTP CID,FLASH CID.but i dont know its details.have these terms importance in unlocking?if yes -REASON

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05-11-2006, 20:49	#2 (permalink)
saphiens Freak Poster Join Date: Apr 2006 Location: NORWAY Age: 41 Posts: 168 Member: 266315 Status: Offline Thanks Meter: 0	Maby a small sticky that explains stuff like CID and RSA would be a good idea?! For us newbies

05-12-2006, 08:38	#4 (permalink)
Zaihtam No Life Poster Join Date: Dec 2004 Location: 0x001FD00 Posts: 1,285 Member: 98572 Status: Offline Thanks Meter: 36	RSA = Rivest Shamir Adelman Encryption, it's an encryption algorithm, SEMC phone security use this algorithm. OTP = One Time Programing. this refer to a Memory IC area or type that can be only be written once. Flash = It refer a Memory IC that can be written again and again. CID = Certificate Identification. CID refer to what version of Certificate that have been used in the encryption. CID information is acquiered from OTP area and flash area, if it doesn't match your phone will have problem. Good Luck...

05-12-2006, 11:32	#5 (permalink)
chernobel Crazy Poster Join Date: Feb 2006 Location: in the earth Posts: 59 Member: 236247 Status: Offline Thanks Meter: 0	thanks for this informations man good job

05-12-2006, 14:50	#6 (permalink)
zonetrichur No Life Poster Join Date: Mar 2006 Location: india Posts: 1,395 Member: 239168 Status: Offline Thanks Meter: 104	please i want more explanation to my questions I KNOW SE PHONES MEMORY DEVIDED IN TO FOUR-MAIN,FS,EEROM,GDFS in it where is the lock? is it in EEROM? 2.what is firmware?its difference from main,fs,eerom,gdfs 3.when a set unlock,what happens?that is which area rewrited 4.i have also heard about RSA,OTP CID,FLASH CID.but i dont know its details.have these terms importance in unlocking?if yes -REASON

10-15-2006, 12:23	#8 (permalink)
zonetrichur No Life Poster Join Date: Mar 2006 Location: india Posts: 1,395 Member: 239168 Status: Offline Thanks Meter: 104	Hallow, I Asked Above Quetions Near Three Months Ago.in Between I Bought Se Tool And Usbsmart And cruiser. Did Many Se Phones.now I Have Confidence To Do A Se Dead Or Unlock.but I Have Many Doubts About Main,fs,eeprom,erom,gdfs,otp,rsa,cid S. I Think In Old Se Phones Phone Memory Devided In To Three(k300,k500,k700 Etc).main,fs,gdfs.(in It Gdfs Contains Eeprom And Eerom). I Know Old Se Phones Has Cid 29 And 36 Only(red And Brown).this Details Lies In Otp Area.so Before Go To Flash /unlock Must Know The Cid Version ?am I Correct? I Think The Rsa Concept For Unlockers.this Area Is Rewritted.my Doubt Is Where Is This Area In Phone Memory In Se Phones(main,fs,gdfs,eeprom,erom).this Information Is Good For Back Up Before Unlock(to On Set Again)

10-15-2006, 17:47	#9 (permalink)
amitks_in No Life Poster Join Date: Jan 2005 Location: NEW DELHI, INDIA Age: 50 Posts: 1,688 Member: 111665 Status: Offline Sonork: 104250 Thanks Meter: 180	If u just spare some time, and read thouroghly the posts of this guy ! u will find some good info's ! also u can Force him to reply your questions ! I think he will not mind this ! but as somethings are TRADE secrets which he will not share ! Best Luck ! http:///vbb/member.php?u=1841