Checks, whether the given key can be used with this CryptographicProvider.
CryptographicProvider
Key
true
Key key
false
9899100101102103104105106107108
{ Iterator it = this.providers.values().iterator(); while(it.hasNext()) { CryptographicProvider p = (CryptographicProvider)it.next(); if(p.canUseKey(key)) { return p; } }