发明申请
- 专利标题: Elliptic Curve Random Number Generation
- 专利标题(中): 椭圆曲线随机数生成
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申请号: US14575844申请日: 2014-12-18
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公开(公告)号: US20150156019A1公开(公告)日: 2015-06-04
- 发明人: Daniel Richard L. Brown , Scott Alexander Vanstone
- 申请人: Certicom Corp.
- 主分类号: H04L9/08
- IPC分类号: H04L9/08
摘要:
An elliptic curve random number generator avoids escrow keys by choosing a point Q on the elliptic curve as verifiably random. An arbitrary string is chosen and a hash of that string computed. The hash is then converted to a field element of the desired field, the field element regarded as the x-coordinate of a point Q on the elliptic curve and the x-coordinate is tested for validity on the desired elliptic curve. If valid, the x-coordinate is decompressed to the point Q, wherein the choice of which is the two points is also derived from the hash value. intentional use of escrow keys can provide for back up functionality. The relationship between P and Q is used as an escrow key and stored by for a security domain. The administrator logs the output of the generator to reconstruct the random number with the escrow key.
公开/授权文献
- US10243734B2 Elliptic curve random number generation 公开/授权日:2019-03-26
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