By its very nature, a non-authenticated multi-party key agreement protocol cannot provide participant and message authentication, so it must rely on an authenticated network channel. This paper presents the inability of two famous multi-party key agreement protocols to withstand malicious participant attacks, even though their protocols are based on the authenticated network channel. This attac...

Min eral de pos its in Brit ish Co lum bia usu ally have a com plex sur face geo chem i cal ex pres sion re flect ing bed rock ge ol ogy, the style of min er al iza tion, the type of surficial sed i ment and char ac ter is tics of the sec ond ary en vi ron ment such as drain age, to pog ra phy and cli mate. Ori en ta tion sur veys are there fore nec es sary to as sess how these fac tors con tro...