krb5int_derive_keyblock
krb5_error_code krb5int_derive_keyblock(const struct krb5_enc_provider *enc,
ret = krb5int_derive_keyblock(enc, hash, inkey, &keyblock, in_constant,
err = krb5int_derive_keyblock(ktp->enc, ktp->hash, tempkey, key, &usage,
ret = krb5int_derive_keyblock(ktp->enc, NULL, foldkey, keyblock, &indata,