The phrase "asserted need for" is correct and usable in written English.
It can be used when discussing a recognized or claimed necessity for something, often in formal or academic contexts.
Example: "The report highlighted the asserted need for improved infrastructure in the region to support economic growth."
Alternatives: "claimed necessity for" or "declared requirement for".
If your agencies can do that even where they cannot access encrypted data, that undercuts the asserted need for this Bill.
The amicus brief of the Attorney General asks the Court to recognize a qualified privilege that would "balance the demands of criminal law enforcement against the asserted need for confidentiality [by the White House]." Brief Amicus Curiae for the United States, Acting Through the Attorney General at 7-8 ("Attorney General Amicus Brief").
Argument from moral order are based on the asserted need for moral order to exist in the universe.
He stressed the long-term nature of the effort and asserted a need for open-endedness in the American commitment.
In March Chuka Umunna, Labour's shadow business secretary, asserted the need for "smarter use of public procurement to back our target industries".
Vice President Al Gore has asserted a need for the "forward engagement' of American forces in distant trouble spots without specifying ways to reduce the risk of that engagement.
Aristotle had asserted the need for a unity of time: "Tragedy endeavours, as far as possible, to confine itself to a single revolution of the sun, or but slightly to exceed this limit".
6. Procedures in practice at the time of the request here in issue apparently resulted in the Attorney General's merely countersigning a request which asserted a need for a wiretap.
Dostoevsky rejected the idea that people act in accordance to reason or their best interests and asserted the need for them to be able to behave as they choose, without fitting into Enlightenment ideas of "progress".
The difficulties of that relationship were demonstrated when - after victory was largely won - blacks asserted the need for an all-black leadership of one of the main civil rights groups.
Launching the online encyclopedia project, Schlafly asserted the need for an alternative to Wikipedia due to editorial philosophy conflicts.
