Corporate Payments: Easing, Expanding Use of E-Signatures: A double digital signature pilot from Citigroup and IdenTrust may prove a turning point in the quest to ease corporate treasury headaches and expand the transaction banking business.

About 150 global companies with multiple banking relationships have been drawn to the SWIFT network to interact with their banks, utilizing both SWIFT's accessibility and PKI-based security standards.

But those connections have been limited in use-no payment instructions, no exceptions processing-and still require corporates to adopt the proprietary interface to each SWIFT member's network. Since each bank on a corporate roster may require different levels of integration and security, treasurers have drawers filled with USB tokens and key fobs for authorized log-ins and transaction approvals.

But a newly launched SWIFT pilot program involving Citigroup and digital identity vendor …