As on every personal device you would have some private stuff stored on it (from pictures to password lists etc). Now, is there any way to strongly encrypt this information in the case the handset got lost or stolen?
Is there a build-in solution for this? If no are there any external/3rd-party solutions available?
Open source and freeware solutions are preferable.
There's Password Safe for storing passwords, but for files I don't know.
IIRC I read stuff here about Truecrypt, but I don't know if there's a Truecrypt app to open encrypted partitions from the N900.
i would love it to.actually i use the option to close the whole phone after 30 minutes down with a password.but a app that encrypt files or folders would be really much better.
I encrypted a file using this:
openssl enc -e -aes-256-cbc -in originalfile -out encryptedfile -k password
Once encrypted, I tried decrypting on terminal:
openssl enc -d -aes-256-cbc -in encryptedfile -out testfile -k password
It works.
The testfile content is same as originalfile.
However, the encryptedfile, when received by friend on MacOSX, decrypted resulting in this error:
bad decrypt
296:error:0606506D:digital envelope routines:EVP_DecryptFinal:wrong final block length:evp_enc.c:502:
is there problem with openssl implementation of n900? Edit
The files and password is not real, replaced with sample only.
I worry about this issue sometimes and I wish I could buy a phone with zero internal storage (ALL user data would be on the removable card). If you have an unencrypted file in flash, making an encrypted copy won't do you a bit of good, since there is no completely reliable way to permanently and unrecoverably delete the unencrypted version. You really have to do something at the kernel level, i.e. dmcrypt preventing any unencrypted data from ever touching the flash drive. This is possible with a laptop but I'd have no idea how to do it with the n900.
