Abstract: Methods and systems for performing one or more operations on a first computing device are disclosed. A method includes receiving, from a second computing device via a short-range wireless communication, a service session setup request and an identifier of one of the second computing device and an associated user of the second computing device. The method further includes determining whether to authorize the service session setup request based on the identifier. Then in response to determining to authorize the service session setup request, a service session may be established between the first and the second computing devices. The method also includes receiving one or more service instructions that are allowable based on the identifier. The method furthermore includes performing, at the first computing device, the one or more operations based on the service instructions.

Abstract: Methods and systems for performing one or more operations on a first computing device are disclosed. A method includes receiving, from a second computing device via a short-range wireless communication, a service session setup request and an identifier of one of the second computing device and an associated user of the second computing device. The method further includes determining whether to authorize the service session setup request based on the identifier. Then in response to determining to authorize the service session setup request, a service session may be established between the first and the second computing devices. The method also includes receiving one or more service instructions that are allowable based on the identifier. The method furthermore includes performing, at the first computing device, the one or more operations based on the service instructions.

Abstract: Using know methods a digital signature, such as a one-way hash, of a document is produced. A digital representation of a signature is associated with the digital signature. The digital representation may be, for example, a digitized picture of the signature. Both the digital signature and the digital representation of the signature are sent to a recipient. The recipient may then view the digital representation of the signature and provide visual confirmation of the authenticity of the signature. In addition, the digital representation of the signature may be electronically analyzed to determine a match. The digital representation of the signature may then be shown to the recipient when the electronic analysis indicates an authentically signed document so as to provide a visual assurance of integrity.