What are the privacy techniques that used with Litecoin? and what are the differences between Bitcoin and Litecoin in privacy techniques?
There is no substantial technical difference between Litecoin and Bitcoin transactions.
Litecoin does not offer any additional "privacy techniques". The only differences are:
- address scheme: Litecoin addresses start with an L, Bitcoin standard addresses start wtih a 1.
- Volume: Bitcoin volume is much higher, so it might be easier to obscure a payment among the other transactions.
- Attention: Bitcoin might have more attention of law enforcement.
Note: The last two points are based on speculation.