Man pages matching name crypt::cipher::twofish in section 3pm:

Crypt::Cipher::Twofish.3pm.en	debian 10 / libcryptx-perl
Crypt::Cipher::Twofish.3pm.en	debian 11 / libcryptx-perl
Crypt::Cipher::Twofish.3pm.en	debian 12 / libcryptx-perl