C＃加密Android解密

Question

I encrypt a string in c# (RijndaelManaged), which returns a byte array.

I want to save that byte array to a database in order to get it decrypted later in the android device.

I have tried converting it to base64 in c#, But as I understand android doesnt support base64 decoding before API8.

Is there another way saving the byte array in the DB, so I can later fetch it and decrypt it on android?

10X

Answer 1

Update :

you can implement the base64 encoding yourself on both sides so that you can be sure, you can see example code of how to implement Base64 encoding and decoding in languages like c, C++, java, and javascript on wikibooks

Yes, if you are using SQL Server, you can use VarBinary

you can read more about insert a byte array into database in this SO question

You can insert BLOB Data in SQLITE and MySql too

Answer 2

You can find Java Base64 decoders everywhere http://www.source-code.biz/base64coder/java/ , add it to your Android project and you're off.

If not, just translate each byte into two hexadecimal digits in C#, and then back in Android. It's very easy to do so yourself.