DATUM INC. AND SUBSIDIARIES

                                  EXHIBIT 23.1

                       CONSENT OF INDEPENDENT ACCOUNTANTS

We hereby consent to the incorporation by reference in the Registration
Statement on Form S-3 (No. 333-89721) and on Form S-8 (No. 333-40404) of Datum
Inc. of our report dated February 14, 2002 relating to the financial statements
and financial statement schedule, which appears in this Form 10-K.


/s/ PRICEWATERHOUSECOOPERS LLP
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PRICEWATERHOUSECOOPERS LLP

Orange County, California
March 29, 2002