Macro sp_application_crypto::app_crypto_pair_common

macro_rules! app_crypto_pair_common {
    ($pair:ty, $key_type:expr, $crypto_type:expr) => { ... };
}

Declares Pair type which is functionally equivalent to $pair, but is new application-specific type whose identifier is $key_type. It is a common part shared between full_crypto and non full_crypto environments.