发明授权
US5633928A Key escrow method with warrant bounds 失效
密钥托管方法与权证范围

Key escrow method with warrant bounds
摘要:
A key escrow technique is disclosed which permits cryptographic limits on wiretapping warrants. Specifically, time limits on wiretaps may be enforced. In addition, the wiretapper is targeted to a specific party or specific pairs of parties communicating in a network.
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