The Center politician adds that it has been an honor to serve as Minister of Defense for Norway in a demanding time.
- I have today announced my party leader Trygve Slagsvold Vedum, and Prime Minister Jonas Gahr Støre, that I want to resign as Minister of Defense, says Enoksen.
Enoksen, who was married when the affair took place, met the then 18-year-old woman when her school class was visiting the Riksdag, where he sat as a member.
The deal lasted for several months.
Enoksen was 50 years old and the same autumn became Minister of Petroleum and Energy in Jens Stoltenberg's red-green government, writes the newspaper VG, which spoke to the now 30-year-old woman.
In diary entries, text messages, emails and medical records that VG has read, the woman's story about the affair is confirmed.
In her diary, she wrote that Enoksen was her "sexual mentor", a term that the Minister of Defense confirms that they used.
- I have made several bad choices and assessments, and will give an unreserved excuse that my actions have made life more difficult for others, says Enoksen.