In this usage, the term means difficult to guess. An encryption algorithm is intended to be unbreakable (in which case it is as strong as it can ever be), but might be breakable (in which case it is as weak as it can ever be) so there is not, in principle, a continuum of strength as the idiom would seem to imply: Algorithm A is stronger than Algorithm B which is stronger than Algorithm C, and so on.
Smart Clothing is made from fabrics that are wireless and washable that integrate computing fibers and materials into the integrity of the fabrics. Georgia Tech is one university among several, which include MIT and University of California at Davis, that conduct research in the area of intelligent fabric.
Smart casual for women is not so much about what to wear as what pieces should, or shouldnât be worn together. For example, jeans with thongs is casual, jeans with a pretty sandal is smart casual. Shorts and thongs are casual; the same shorts with a wedge and a tailored jacket are smart casual. If the basic piece is simple, i.e. jeans, shorts ( not too skimpy), a denim skirt, a sundress, then it is well chosen accessories that will class it up.