EXHIBIT 23.1 CONSENT OF INDEPENDENT AUDITORS The Board of Directors Wave Systems Corp.: We consent to the incorporation by reference in the registration statements Nos. 333-38265, 333-28819, and 333-20017 on Form S-3 and Nos. 333-68911, 333-69041, 33-97612, 333-11611 and 333-11609 on Form S-8, of our report dated March 10, 2000, relating to the consolidated balance sheets of Wave Systems Corp. and subsidiaries as of December 31, 1999 and 1998, and the related consolidated statements of operations, stockholders' equity (deficiency) and other comprehensive income, and cash flows for each of the years in the three-year period ended December 31, 1999 and for the period from February 12, 1988 (inception) through December 31, 1999 which report appears in the December 31, 1999 annual report on Form 10-K of Wave Systems Corp. KPMG LLP /s/ KPMG LLP Boston, Massachusetts March 21, 2000