Additional partners are still being added.
Digital certificates are electronic credentials that vouch for the identity of a user.
Visa, which is spearheading the initiative, declined to comment on Monday's announcement. This is not industry's first stab at boosting Internet commerce, and earlier efforts have not all succeeded. However, it remains to be seen whether the e-wallet specification, despite early backing, will be widely embraced. For consumers, it's designed to simplify the process of filling out forms online to make purchases. They can fill out the information once in their wallet, then have it transferred automatically to a merchant when they make a purchase.