Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Token based new digital cash protocols with combined blind digital signature and pseudonym authentication










Image Number 14 for United States Patent #7877331.

Digital cash token protocols use a combination of blind digital signatures and pseudonym authentication with at least two pairs of public and private keys. A user is provided with one master pair of private and public keys and as many pseudonym pairs of private and public keys as desired. The resulting digital cash token based hybrid protocols combine the advantages of blind digital signature and pseudonym authentication. Blind digital signatures based on the master pair of keys are used to withdraw digital cash from the user's bank account under the user's real identity. A pseudonym pair of keys is used for converting digital cash into digital cash tokens by a digital cash issuer. All pseudonyms can be used for spending the digital cash tokens. These protocols ensure anonymity when withdrawing digital cash from the user's account under the user's real identity in addition to providing pseudonym authentication when spending digital cash tokens under a pseudonym.








 
 
  Recently Added Patents
Label printer
Methods and systems for creating a tail risk hedge index and trading derivative products based thereon
Selecting modulation and coding scheme in the presence of interference
Actuator, actuator structure and method of manufacturing actuator
Dynamic report mapping apparatus to physical data source when creating report definitions for information technology service management reporting for peruse of report definition transparency a
Image descriptor quantization
Bicyclic azaheterocyclic carboxamides
  Randomly Featured Patents
Soft-focus lens system
Cooled mounting for light detector
Use of C-5 mono-substituted barbiturates to treat disorders of uric acid metabolism
Device for deploying an implantable medical device
Latch device for movable anchor in passive seat belt system
Method and assembly for overfill detection in liquid level sensing in a vessel by the pulse transit time technique
Prefix sums and an application thereof
Beverage clouding system and method
Octahydronaphthalene derivatives and their preparation
Digital camera