Methods and apparatus for verifying the cryptographic security of a selected private and public key pair without knowing the private key
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United States of America Patent
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Jun 25, 2002
Grant Date -
N/A
app pub date -
Nov 10, 1998
filing date -
Nov 10, 1997
priority date (Note) -
Expired
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Abstract
Methods and apparatus are disclosed for demonstrating that a public/private key pair is cryptographically strong without revealing information sufficient to compromise the private key. A key pair can be shown to be cryptographically strong by demonstrating that its modulus N is the product of two relatively large prime numbers. In addition, a key pair can be shown to be cryptographically strong by demonstrating that N is cryptographically strong against Pollard factoring attacks, Williams factoring attacks, Bach-Shallit factoring attacks, and weighted difference of squares factoring attacks.
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