The phrase "adversary from" is correct and usable in written English.
It can be used when referring to a person or entity that opposes or competes with another, often in a legal or competitive context.
Example: "The lawyer presented evidence to counter the claims made by the adversary from the opposing side."
Alternatives: "opponent from" or "rival from".
Harn's paper also has proposed a reconstruction scheme which can prevent the outside adversary from knowing the secret.
And Mr. Cheney has reportedly been talking with Mr. Kissinger, his old colleague (and sometime adversary) from the Ford administration.
— My organisation and I are the targets of political adversary from the United States government and its closest allies.
This scheme can achieve the security goal of protecting data and prevent the adversary from snooping the encrypted data or the userʼs private key.
In the last volume of the Millennium trilogy, Mikael Blomkvist and Lisbeth Salander are threatened by an adversary from deep within the government.
But the president won the latest round this week when he sacked his old adversary from his post as head of the civil service, together with most of his team.
The bodies pile up as coke-addled, god-fearing, bullet-scarred gangsters turn their adversaries "from is to was".
The probes are concealed, preventing adversaries from treating them preferentially.
The size of the military is determined not only to win wars, but also to deter adversaries from starting hostilities.
In this paper, we propose a privacy-preserving protocol specializing for MAX/MIN query that prevents adversaries from gaining sensitive information from sensor collected data.
Through the years and other power struggles, Stern's guiding leadership principle has been to know his adversaries from his enemies and to always make that distinction.
