port sqlcipher to go-sqlite3

[auxten]

hi mattn: I ported sqlcipher to go-sqlite3 and just made it work, I knew that the PR is mess up, here are what i did:

1. port sqlcipher from 3.20 to 3.24, put it in sqlite3-binding.c
2. put libtomcrypt files in (just for easy building)
3. port your see branch back
4. some readme modification for people just want make it work quickly
5. modify _example/simple just for testing if it works

I don't know weather you are willing to add this feature. if it is, I will do some clean up and make the PR decent. here is a list i am willing to do, and any advise is welcome :)

1. make a patch for sqlite3-binding.c, add it to upgrade package
2. make the crypto lib out side the project
3. put openssl and commoncrypt support back, maybe
4. make a build tag for enabling the crypto codec
5. more tests
6. cleanup the garbage commits

[coveralls]

Coverage decreased (-0.01%) to 58.154% when pulling 9bf2a8ae53435df18b8967217b5beccd8e602ed6 on CovenantSQL:master into 3198c7714d5f8be941dd06c30208e623aa5abf90 on mattn:master.

[mattn]

You have better to work on $GOPATH/src/github.com/mattn/go-sqlite3 with branch not on $GOPATH/src/github.com/CovenantSQL/go-sqlite3-encrypt.

[mattn]

@GJRTimmer How do you think this PR?

[skaufman-socialflow]

FYI https://github.com/xeodou/go-sqlcipher is basically what is described in this PR (I can't speak for the code though, haven't read it)

[lewgun]

any progress ?

[auxten]

any progress ?

you can just use my fork version.

[gjrtimmer]

@GJRTimmer How do you think this PR?

Looking into it

[joyciep]

Any updates?

[jgiannuzzi]

I have created the following PR to allow using SQLCipher with go-sqlite3, which I believe supersedes this one: https://github.com/mattn/go-sqlite3/pull/1109