SHEA Membership List Available

List Of Available Documents

The following additional background information from TIPSTER Text Phases I and 1/ can be purchased from the sources indicated.

How to prove list membership in logarithmic time

In this paper we propose a novel technique for proving in zeroknowledge that a committed value is on a public list. Our technique combines the concept of a hashtree with well-known zero-knowledge proofs of knowledge. The resulting proof protocol has a time complexity logarithmic in the size of the list. Its soundness property is guaranteed under the discrete logarithm assumption, while the prov...

List

Modelling Shea under Climate Scenarios

Distribution data describing the current shea range were obtained from John Hall (University of Wales, Bangor); for details, see previous reports and Vitellaria paradoxa: a monograph (Hall et al., 1996). In 2010, these records were supplemented with shea plot data from Burkina Faso, Mali and Ghana, and with the collection localities of herbarium specimens held at the Royal Botanic Gardens, Kew ...

Indigenous knowledge of shea processing and quality perception of shea products in Benin.

A survey among 246 people belonging to 14 ethnic groups and living in 5 different parklands in Benin revealed different practices to process shea kernels (namely boiling followed sun drying and smoking) and extract shea butter. A relation between parklands, gathering period, and sun-drying conditions was established. Moisture content and appearance of kernels were the selection criteria for use...