//
// Validates a User representation of a Factom and
// Entry Credit addresses.
//
// Returns false if the length is wrong.
// Returns false if the prefix is wrong.
// Returns false if the checksum is wrong.
//
func validateUserStr(prefix []byte, userFAddr string) bool {
if len(userFAddr) != 52 {
return false
}
v := base58.Decode(userFAddr)
if bytes.Compare(prefix, v[:2]) != 0 {
return false
}
sha256d := Sha(Sha(v[:34]).Bytes()).Bytes()
if bytes.Compare(sha256d[:4], v[34:]) != 0 {
return false
}
return true
}
// Convert a User facing Factoid or Entry Credit address
// or their Private Key representations
// to the regular form. Note validation must be done
// separately!
func ConvertUserStrToAddress(userFAddr string) []byte {
v := base58.Decode(userFAddr)
return v[2:34]
}