sqlcipher_export not working

[Ganesh V]

Hi,

Sorry for poor english.

i have readied the site http://sqlcipher.net/

how to a non encrypted database to an encrypted database, from an encrypted database to a non encrypted database?

i need do put into xcode project of non encrypted of sqlite to encrypted sqlite. I tried terminal the below

-macbook:sqlTest user1$ sqlite3 sqlTest.sqlite
SQLite version 3.7.13 2012-07-17 17:46:21
Enter ".help" for instructions
Enter SQL statements terminated with a ";"
sqlite> ATTACH DATABASE 'encrypted.sqlite' AS encrypted KEY 'testkey';
sqlite> SELECT sqlcipher_export('encrypted');
Error: no such function: sqlcipher_export
sqlite>

sqlcipher_export() is missing function. Please help me

[Stephen Lombardo]

Hello Ganesh,

The first step is to build the sqlcipher command line tool, as described here:

http://sqlcipher.net/introduction/

Once you have done this, you should run the command like this:

$ ./sqlcipher sqlTest.sqlite

or

$ /full/path/to/sqlcipher/sqlcipher sqlTest.sqlite

On unix systems, if you don't provide an explicit path for a command, the system will look for the program in $PATH. On OSX, the system ships with a sqlite3 command, so you've probably been using that instead of the version compiled with SQLCipher. Please let us know if that resolves the problem. Thanks!

Cheers,
Stephen

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[Anil]

Hello Stephen,

Which is edition of use sqlcipher_export() function? Commerical edition or Community edition?

[Anil]

Thank you for help i tired it for 6 hours. sqlite3_export() function will working.

On Thursday, January 2, 2014 8:38:21 AM UTC+5:30, Stephen Lombardo wrote:

[Anil]

One problem have that,

plaintext.sqlite size is 1 MB, has contain 4 tables. 

./sqlcipher plaintext.sqlite

QLCipher version 3.8.0.2 2013-09-03 17:11:13

Enter ".help" for instructions

Enter SQL statements terminated with a ";"

sqlite> ATTACH DATABASE 'encrypted.sqlite' AS encrypted KEY 'testkey';

sqlite> SELECT sqlcipher_export('encrypted');

sqlite> DETACH DATABASE encrypted;

After command above,

plaintext.sqlite file size is getting zero byte and encrypted.sqlite getting 1 KB.

$ ./sqlite3 encrypted.db 

sqlite> PRAGMA key = 'testkey'; 

sqlite> ATTACH DATABASE ‘sqlTest.sqlite’ AS plaintext KEY '';

sqlite> SELECT sqlcipher_export('plaintext'); 

sqlite> DETACH DATABASE plaintext;

After Decrypt to plaintext

plaintext.sqlite size is zero byte. contain tables are missing.

What is issue?

[Nick Parker]

Hello Anil,

When you perform a sqlcipher_export command on an attached database, it
does not delete the referenced database. Also, in your example below,
once you have exported a plain-text database to an encrypted form, you
will not be able to open it with the standard sqlite3 command line
shell, nor would you have access to the sqlcipher_export convenience
function. To verify you are using a SQLCipher command line shell, issue
PRAGMA cipher_version and verify you get a value printed on your screen.

On 1/2/14, 6:13 AM, Anil wrote:
> One problem have that,
>
> plaintext.sqlite size is 1 MB, has contain 4 tables.
>

> *./sqlcipher plaintext.sqlite*
>
> *QLCipher version 3.8.0.2 2013-09-03 17:11:13*
>
> *Enter ".help" for instructions*
>
> *Enter SQL statements terminated with a ";"*
>
> *sqlite> ATTACH DATABASE 'encrypted.sqlite' AS encrypted KEY 'testkey';*
>
> *sqlite> SELECT sqlcipher_export('encrypted');*
>
> *sqlite> DETACH DATABASE encrypted;*

>
> After command above,
>
> plaintext.sqlite file size is getting zero byte and encrypted.sqlite
> getting 1 KB.
>

> *$ ./sqlite3 encrypted.db *
>
> *sqlite> PRAGMA key = 'testkey'; *
>
> *sqlite> ATTACH DATABASE ‘sqlTest.sqlite’ AS plaintext KEY '';*
>
> *sqlite> SELECT sqlcipher_export('plaintext'); *
>
> *sqlite> DETACH DATABASE plaintext;*

>
> After Decrypt to plaintext
>
> plaintext.sqlite size is zero byte. contain tables are missing.
>
> What is issue?
>

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Nick Parker

[Anil]

Hi Nick,

Thank you for help. i got it. 

[Vinay Hegde]

Hi Anil,

i am also facing same issue. can you please tell me how you solved this.