Baker's article is an interesting restatement of his position. Highly-secure backdoors are discussed here: https://papers.ssrn.com/sol3/papers.cfm?abstract_id

Baker's article is an interesting restatement of his position. Highly-secure backdoors are discussed here: https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3425957 https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3425957