IPhone backup encryption password troubles with iTunes?

So, I was trying to backup my iPhone so I could convert my sms/imessages to transfer onto my
Android phone and iTunes asked me for my encryption password. I typed in my password, iTunes said it was wrong. So I went to my keychain and performed these steps:

Luckily I had saved the password, maybe you did to, I'll tell you how to find it.

Click on the spotlight in the upper right (looks like a magnifying glass) and type in "Keychain Access"

When spotlight finds "keychain access" click on it to open the keychain access

In the upper right of Keychain Access you'll see a search box, type in iPhone Backup

When it finds iPhone Backup click on it and a box will open

Click the box for "show password" and if the password for your backup will show up

Turns out, I was right about my password, iTunes just doesn't recognize it. Any help?

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