March 25 (Reuters) - The U.S. Securities and Exchange Commission is seeking fines and penalties totaling $2 billion in its case against Ripple Labs over sales of the cryptocurrency XRP, the company's chief legal officer said in a social media post on Monday. In posts on X, Ripple Chief Legal Officer Stuart Alderoty said the regulator has asked U.S. District Judge Analisa Torres in Manhattan for the penalties in court papers filed under seal. The SEC was scheduled to file the documents publicly with redactions on Tuesday#xrp