There are guys over at No Such Agency that eat this stuff for breakfast. It will be broken within the week.
If it’s encoded as claimed, breaking it would be bigger news than whatever is in the file.
“Cryptographers say that the file was likely made using a 256-bit encryption standard known as AES256, which the U.S. government and others employ to mask some of their most sensitive data.
“It is widely viewed as extremely strong,” said crypotgraphy pioneer Whitfield Diffie, of Britain’s Royal Holloway College. He said there were no known instances of anyone being able to beat the standard.
Kocher, of Cryptography Research, agreed, saying that the only conceivable way anyone outside of WikiLeaks could decode “Insurance” was if Assange and his colleagues had used a blatantly obvious password or experienced some kind of “catastrophic algorithm error.”
“We’re not going to find out what’s in that file unless somebody reveals the key,” Kocher said.”
In the days of William Donovan and the OSS, Julian Assange would have already accidentally drowned in his bath tub and "Wikileaks" would be the web address of a 24 hour plumbing service in Brooklyn.