Cloud app security software startup Elastica emerged from stealth on Tuesday with $6.3 million in Series A funding. The San Jose company led by CEO Rehan Jalil said that the funding came from theMayfield Fund. Elastica said its advisers include Rayid Ghani, chief scientist of Obama’s 2012 campaign; Tom Reilly, former CEO of Arcsight and current CEO of Cloudera;M.C. Srivas, founder of MapR; and Ion Stoica, professor at UC Berkeley.