• Publications
  • Influence
Efficient Elliptic Curve Exponentiation Using Mixed Coordinates
Elliptic curve cryptosystems, proposed by Koblitz ([12]) and Miller ([16]), can be constructed over a smaller field of definition than the ElGamal cryptosystems ([6]) or the RSA cryptosystems ([20]).Expand
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A ciphertext-policy attribute-based encryption scheme with constant ciphertext length
An Attribute-Based Encryption (ABE) is an encryption scheme where users with some attributes can decrypt ciphertexts associated with these attributes. The length of the ciphertext depends on theExpand
  • 108
  • 14
  • Open Access
Elliptic Curves over Fp Suitable for Cryptosystems
  • A. Miyaji
  • Computer Science
  • AUSCRYPT
  • 13 December 1992
Koblitz ([5]) and Miller ([6]) proposed a method by which the group of points on an elliptic curve over a finite field can be used for the public key cryptosystems instead of a finite field. ToExpand
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Efficient Countermeasures against RPA, DPA, and SPA
In the execution on a smart card, side channel attacks such as simple power analysis (SPA) and the differential power analysis (DPA) have become serious threat [15]. Side channel attacks monitorExpand
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  • Open Access
A Ciphertext-Policy Attribute-Based Encryption Scheme with Constant Ciphertext Length
An Attribute-Based Encryption (ABE) is an encryption scheme, where users with some attributes can decrypt ciphertexts associated with these attributes. However, the length of the ciphertext dependsExpand
  • 155
  • 9
  • Open Access
Dynamic attribute-based signcryption without random oracles
In SCN2010, Gagne, Narayan, and Safavi-Naini proposed attribute-based signcryption (ABSC) with threshold structure. As in ciphertext-policy attribute-based encryption (CP-ABE), an encryptor canExpand
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  • 9
  • Open Access
A Dynamic Attribute-Based Group Signature Scheme and its Application in an Anonymous Survey for the Collection of Attribute Statistics
Recently, cryptographic schemes based on the user's attributes have been proposed. An Attribute-Based Group Signature (ABGS) scheme is a kind of group signature schemes, where a user with a set ofExpand
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  • Open Access
Intrusion-Resilient Public-Key Encryption
This paper provides a comprehensive treatment of forward-security in the context of shared-key based cryptographic primitives, as a practical means to mitigate the damage caused by key-exposure. WeExpand
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Efficient elliptic curve exponentiation
Elliptic curve cryptosystems, proposed by Koblitz([8]) and Miller([11]), can be constructed over a smaller definition field than the ElGamal cryptosystems([5]) or the RSA cryptosystems( [16]). ThisExpand
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  • 5
  • Open Access