Latin pronunciation question

[ProVobis]

It does seem that ecclesiastical Latin I hear uses the Italian pronunciation of C and G before i and e, whereas the Latin I learned in school had those pronounced in hard form, such that Cicero is said to be Kikero and Genitori Genitoque would be GHenitori GHenitoque. Is it impermissible to pronounce Latin in the classical form as opposed to the more common ecclesiastical form?

Depends on who your audience is. If you’re a valedictorian from Harvard, you use the classical form. In the Mass, of course, the Italian pronunciations are used. I don’t know if it counts as an abuse if the priest decides to use the Classical form.