  Low-cost portable devices capable of capturing signature signals are being
increasingly used. Additionally, the social and legal acceptance of the written
signature for authentication purposes is opening a range of new applications.
We describe a highly versatile and scalable prototype for Web-based secure
access using signature verification. The proposed architecture can be easily
extended to work with different kinds of sensors and large-scale databases.
Several remarks are also given on security and privacy of network-based
signature verification.
