Anonymous Digital Cash (“Digicash”)
- Tries to provide anonymity at the expense of money-atomicity
- Customer anonymously sends “money token” to merchant and waits for goods. However, customer doesn’t know whether merchant got the token. Should customer delete the token or re-send it?
- But, anonymity can break in communications failure
- Digicash guarantees none of the properties described in the paper except merchant security
- They filed for Chapter 11 :)