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Probabilistic signature scheme

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Probabilistic Signature Scheme (PSS) is a cryptographic signature scheme designed by Mihir Bellare and Phillip Rogaway.[1]

RSA-PSS is an adaptation of their work and is standardized as part of PKCS#1 v2.1. In general, RSA-PSS should be used as a replacement for RSA-PKCS#1 v1.5.

Design

PSS was specifically developed to allow modern methods of security analysis to prove that its security directly relates to that of the RSA problem. There are no such proves for the traditional PKCS#1 v1.5 scheme.

References

  1. ^ Mihir Bellare and Phillip Rogaway. "PSS: Provably Secure Encoding Method for Digital Signatures" (PDF).
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