Man pages matching name crypt::openssl::ec in section 3pm:

Crypt::OpenSSL::EC.3pm.en	debian 10 / libcrypt-openssl-ec-perl
Crypt::OpenSSL::EC.3pm.en	debian 11 / libcrypt-openssl-ec-perl
Crypt::OpenSSL::EC.3pm.en	debian 12 / libcrypt-openssl-ec-perl