SD cards and CPRM protection
Before buying an SD memory card, I'd like to know something more about the CPRM protection, in particular:
- Does CPRM influence the way I am supposed to access my own data? That is, does CPRM encrypt it? Could CPRM prevent me from accessing my own data?
- Is it possible to disable or eliminate CPRM from either the memory card or the card reader?
- Are there manufacturers selling CPRM-free SD memory cards?
- Is there any real alternative to CPRM-protected SD memory cards beside USB flash drives?
- Is Linux support for SD cards good?
Thanks.
linux sd-card
asked Apr 19 '10 at 8:55
Francesco TurcoFrancesco Turco
271146
add a comment |
Before buying an SD memory card, I'd like to know something more about the CPRM protection, in particular:
- Does CPRM influence the way I am supposed to access my own data? That is, does CPRM encrypt it? Could CPRM prevent me from accessing my own data?
- Is it possible to disable or eliminate CPRM from either the memory card or the card reader?
- Are there manufacturers selling CPRM-free SD memory cards?
- Is there any real alternative to CPRM-protected SD memory cards beside USB flash drives?
- Is Linux support for SD cards good?
Thanks.
linux sd-card
asked Apr 19 '10 at 8:55
Francesco TurcoFrancesco Turco
271146
I haven't dealt with this but there are some related questions at the SD Assocation FAQ that might help.
– fideli
Apr 19 '10 at 15:54
add a comment |
Before buying an SD memory card, I'd like to know something more about the CPRM protection, in particular:
- Does CPRM influence the way I am supposed to access my own data? That is, does CPRM encrypt it? Could CPRM prevent me from accessing my own data?
- Is it possible to disable or eliminate CPRM from either the memory card or the card reader?
- Are there manufacturers selling CPRM-free SD memory cards?
- Is there any real alternative to CPRM-protected SD memory cards beside USB flash drives?
- Is Linux support for SD cards good?
Thanks.
linux sd-card
asked Apr 19 '10 at 8:55
Francesco TurcoFrancesco Turco
271146
Before buying an SD memory card, I'd like to know something more about the CPRM protection, in particular:
- Does CPRM influence the way I am supposed to access my own data? That is, does CPRM encrypt it? Could CPRM prevent me from accessing my own data?
- Is it possible to disable or eliminate CPRM from either the memory card or the card reader?
- Are there manufacturers selling CPRM-free SD memory cards?
- Is there any real alternative to CPRM-protected SD memory cards beside USB flash drives?
- Is Linux support for SD cards good?
Thanks.
linux sd-card
linux sd-card
asked Apr 19 '10 at 8:55
Francesco TurcoFrancesco Turco
271146
asked Apr 19 '10 at 8:55
Francesco TurcoFrancesco Turco
271146
asked Apr 19 '10 at 8:55
Francesco TurcoFrancesco Turco
271146
asked Apr 19 '10 at 8:55
Francesco TurcoFrancesco Turco
271146
asked Apr 19 '10 at 8:55
Francesco TurcoFrancesco Turco
271146
271146
I haven't dealt with this but there are some related questions at the SD Assocation FAQ that might help.
– fideli
Apr 19 '10 at 15:54
add a comment |
I haven't dealt with this but there are some related questions at the SD Assocation FAQ that might help.
– fideli
Apr 19 '10 at 15:54
I haven't dealt with this but there are some related questions at the SD Assocation FAQ that might help.
– fideli
Apr 19 '10 at 15:54
I haven't dealt with this but there are some related questions at the SD Assocation FAQ that might help.
– fideli
Apr 19 '10 at 15:54
add a comment |
2 Answers
2
active
oldest
votes
- I use OpenBSD and Linux primarily with SD cards and never have seen any sort of copy protection at the hardware level. I would assume that it requires certain programs. For instance if you told xTunes to write out a DRM-ripped CD to the SD card, then it may try to trigger the CPRM bits.
- I have no idea.
- Apparently Super Digital lacks support for CPRM according to Wikipedia http://en.wikipedia.org/wiki/Secure_Digital_card
- There is always things like CF and other such card media.
- Very good.
Bottom line is, I think only certain programs even care about the CPRM. To be honest I don't understand how it works because it is assumingly filesystem-agnostic. How it tracks the file and such is unknown to me. In my experience I have never had any kind of problems with copy protection on SD cards and was not even aware that they had any sort of DRM technology.
answered Aug 23 '10 at 6:43
EarlzEarlz
2,405165279
add a comment |
I'm on mobile so i will be brief. i know of no way in Linux to access the secure api of a sd card.
It does work on the hardware level, not fs.
Read the wikipedia entry. There are 3 modes. Open, pass (16bits) protected, read-only.
There's no protection on brute force, as far as i can tell.
If I'm not mistaken, this is what blackberry, Android and windows phones use to encrypt your sd card data.
So, answer is No. Unless you (or a rogue application on the devices you use the card in) sets up a password.
Eralz is spot on about SuperDigital
answered Mar 28 '13 at 6:49
gcbgcb
1,60763359
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
- I use OpenBSD and Linux primarily with SD cards and never have seen any sort of copy protection at the hardware level. I would assume that it requires certain programs. For instance if you told xTunes to write out a DRM-ripped CD to the SD card, then it may try to trigger the CPRM bits.
- I have no idea.
- Apparently Super Digital lacks support for CPRM according to Wikipedia http://en.wikipedia.org/wiki/Secure_Digital_card
- There is always things like CF and other such card media.
- Very good.
Bottom line is, I think only certain programs even care about the CPRM. To be honest I don't understand how it works because it is assumingly filesystem-agnostic. How it tracks the file and such is unknown to me. In my experience I have never had any kind of problems with copy protection on SD cards and was not even aware that they had any sort of DRM technology.
answered Aug 23 '10 at 6:43
EarlzEarlz
2,405165279
add a comment |
- I use OpenBSD and Linux primarily with SD cards and never have seen any sort of copy protection at the hardware level. I would assume that it requires certain programs. For instance if you told xTunes to write out a DRM-ripped CD to the SD card, then it may try to trigger the CPRM bits.
- I have no idea.
- Apparently Super Digital lacks support for CPRM according to Wikipedia http://en.wikipedia.org/wiki/Secure_Digital_card
- There is always things like CF and other such card media.
- Very good.
Bottom line is, I think only certain programs even care about the CPRM. To be honest I don't understand how it works because it is assumingly filesystem-agnostic. How it tracks the file and such is unknown to me. In my experience I have never had any kind of problems with copy protection on SD cards and was not even aware that they had any sort of DRM technology.
answered Aug 23 '10 at 6:43
EarlzEarlz
2,405165279
add a comment |
- I use OpenBSD and Linux primarily with SD cards and never have seen any sort of copy protection at the hardware level. I would assume that it requires certain programs. For instance if you told xTunes to write out a DRM-ripped CD to the SD card, then it may try to trigger the CPRM bits.
- I have no idea.
- Apparently Super Digital lacks support for CPRM according to Wikipedia http://en.wikipedia.org/wiki/Secure_Digital_card
- There is always things like CF and other such card media.
- Very good.
Bottom line is, I think only certain programs even care about the CPRM. To be honest I don't understand how it works because it is assumingly filesystem-agnostic. How it tracks the file and such is unknown to me. In my experience I have never had any kind of problems with copy protection on SD cards and was not even aware that they had any sort of DRM technology.
answered Aug 23 '10 at 6:43
EarlzEarlz
2,405165279
- I use OpenBSD and Linux primarily with SD cards and never have seen any sort of copy protection at the hardware level. I would assume that it requires certain programs. For instance if you told xTunes to write out a DRM-ripped CD to the SD card, then it may try to trigger the CPRM bits.
- I have no idea.
- Apparently Super Digital lacks support for CPRM according to Wikipedia http://en.wikipedia.org/wiki/Secure_Digital_card
- There is always things like CF and other such card media.
- Very good.
Bottom line is, I think only certain programs even care about the CPRM. To be honest I don't understand how it works because it is assumingly filesystem-agnostic. How it tracks the file and such is unknown to me. In my experience I have never had any kind of problems with copy protection on SD cards and was not even aware that they had any sort of DRM technology.
answered Aug 23 '10 at 6:43
EarlzEarlz
2,405165279
answered Aug 23 '10 at 6:43
EarlzEarlz
2,405165279
answered Aug 23 '10 at 6:43
EarlzEarlz
2,405165279
answered Aug 23 '10 at 6:43
EarlzEarlz
2,405165279
2,405165279
add a comment |
add a comment |
I'm on mobile so i will be brief. i know of no way in Linux to access the secure api of a sd card.
It does work on the hardware level, not fs.
Read the wikipedia entry. There are 3 modes. Open, pass (16bits) protected, read-only.
There's no protection on brute force, as far as i can tell.
If I'm not mistaken, this is what blackberry, Android and windows phones use to encrypt your sd card data.
So, answer is No. Unless you (or a rogue application on the devices you use the card in) sets up a password.
Eralz is spot on about SuperDigital
answered Mar 28 '13 at 6:49
gcbgcb
1,60763359
add a comment |
I'm on mobile so i will be brief. i know of no way in Linux to access the secure api of a sd card.
It does work on the hardware level, not fs.
Read the wikipedia entry. There are 3 modes. Open, pass (16bits) protected, read-only.
There's no protection on brute force, as far as i can tell.
If I'm not mistaken, this is what blackberry, Android and windows phones use to encrypt your sd card data.
So, answer is No. Unless you (or a rogue application on the devices you use the card in) sets up a password.
Eralz is spot on about SuperDigital
answered Mar 28 '13 at 6:49
gcbgcb
1,60763359
add a comment |
I'm on mobile so i will be brief. i know of no way in Linux to access the secure api of a sd card.
It does work on the hardware level, not fs.
Read the wikipedia entry. There are 3 modes. Open, pass (16bits) protected, read-only.
There's no protection on brute force, as far as i can tell.
If I'm not mistaken, this is what blackberry, Android and windows phones use to encrypt your sd card data.
So, answer is No. Unless you (or a rogue application on the devices you use the card in) sets up a password.
Eralz is spot on about SuperDigital
answered Mar 28 '13 at 6:49
gcbgcb
1,60763359
I'm on mobile so i will be brief. i know of no way in Linux to access the secure api of a sd card.
It does work on the hardware level, not fs.
Read the wikipedia entry. There are 3 modes. Open, pass (16bits) protected, read-only.
There's no protection on brute force, as far as i can tell.
If I'm not mistaken, this is what blackberry, Android and windows phones use to encrypt your sd card data.
So, answer is No. Unless you (or a rogue application on the devices you use the card in) sets up a password.
Eralz is spot on about SuperDigital
answered Mar 28 '13 at 6:49
gcbgcb
1,60763359
answered Mar 28 '13 at 6:49
gcbgcb
1,60763359
answered Mar 28 '13 at 6:49
gcbgcb
1,60763359
answered Mar 28 '13 at 6:49
gcbgcb
1,60763359
1,60763359
add a comment |
add a comment |
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I haven't dealt with this but there are some related questions at the SD Assocation FAQ that might help.
– fideli
Apr 19 '10 at 15:54