The PSK is derived from the passphrase using PBKDF2 key derivation function with SHA1 as the pseudo random function. The passphrase is an 8-63 character ASCII encoded string. PSK = PBKDF2(PassPhrase, ssid, ssidLength, 4096, 256) The PSK is 32 bytes (256 bits), often displayed as 64 hex characters. According to the 802.11i specification: A pass-phrase … Read more
I was able to resolve this with: apt-key adv –keyserver keyserver.ubuntu.com –recv-keys 605C66F00D6C9793 \ 0E98404D386FA1D9 648ACFD622F3D138 Looks like the ubuntu servers also contain the debian keys.
You can use icacls in Windows instead of chmod to adjust file permission. To give the current user read permission and remove everything else (Which will allow openssh to work), this works nicely: Command Prompt: icacls .\private.key /inheritance:r icacls .\private.key /grant:r “%username%”:”(R)” In PowerShell, you can get icacls to work by wrapping the command in … Read more
Here I copy paste some of the information that I have collected Key A key is a single or combination of multiple fields. Its purpose is to access or retrieve data rows from table according to the requirement. The keys are defined in tables to access or sequence the stored data quickly and smoothly. They … Read more
The code is the constructor of the MyHomepage widget. {Key key, this.title} It declares two optional named parameters (optional named because of {}) where the first is of name key with type Key the second is of name title with the type of the field this.title and automatically initializes this.title with the passed value. This … Read more
Mongo 2.0 added an $and operator, so you can do a query like this: db.things.find({$and: [{$or : [{‘a’:1},{‘b’:2}]},{$or : [{‘a’:2},{‘b’:3}]}] }) http://www.mongodb.org/display/DOCS/Advanced+Queries#AdvancedQueries-%24and