1. A method for authenticating an electronic transaction between a consumer and a merchant, wherein the method occurs at the merchant and comprises: receiving account information associated with an account from the consumer over the Internet, wherein the consumer accesses the Internet using a consumer's computer; confirming enrollment of the account for digital signature authentication from a financial institution; receiving consumer specific authentication parameters from the financial institution, wherein the consumer specific authentication parameters comprises an authentication scheme; sending transaction information over the Internet to the consumer's computer for a digital signature; sending the authentication scheme over the Internet to the consumer's computer; and receiving a digital signature from the consumer's computer, wherein the digital signature.