All reports by Author Javad Mohajeri:

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TR05-078
| 25th May 2005
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Kooshiar Azimian, Javad Mohajeri, Mahmoud Salmasizadeh, Siamak Fayyaz#### A Verifiable Partial Key Escrow, Based on McCurley Encryption Scheme

Revisions: 1

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TR05-047
| 10th April 2005
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Kooshiar Azimian, Mahmoud Salmasizadeh, Javad Mohajeri#### Weak Composite Diffie-Hellman is not Weaker than Factoring

Kooshiar Azimian, Javad Mohajeri, Mahmoud Salmasizadeh, Siamak Fayyaz

In this paper, firstly we propose two new concepts concerning the notion of key escrow encryption schemes: provable partiality and independency. Roughly speaking we say that a scheme has provable partiality if existing polynomial time algorithm for recovering the secret knowing escrowed information implies a polynomial time algorithm that can ... more >>>

Kooshiar Azimian, Mahmoud Salmasizadeh, Javad Mohajeri

In1985, Shmuley proposed a theorem about intractability of Composite Diffie-Hellman [Sh85]. The Theorem of Shmuley may be paraphrased as saying that if there exist a probabilistic poly-time oracle machine which solves the Diffie-Hellman modulo an

RSA-number with odd-order base then there exist a probabilistic algorithm which factors the modulo. ...
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