Key-Aggregate Cryptosystem based on Elliptic Curve Cryptography for Data Sharing in Cloud Storage
| Autor: | A Kulkarni Mayuri, V. R. Chirchi |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
020203 distributed computing
Theoretical computer science business.industry Computer science Elliptic Curve Digital Signature Algorithm 02 engineering and technology Encryption 020202 computer hardware & architecture Cipher 0202 electrical engineering electronic engineering information engineering Key (cryptography) Cryptosystem Hardware_ARITHMETICANDLOGICSTRUCTURES Elliptic curve cryptography business Cloud storage Key size |
| Zdroj: | International Journal of Computer Applications. 150:28-31 |
| ISSN: | 0975-8887 |
| Popis: | It is important to share data securely, efficiently and flexibly in cloud storage. We describe public-key encryption technique based on elliptic-curve theory which is used to create faster, smaller and more efficient cryptographic keys. This publickey cryptosystem produces constant size cipher texts and user can aggregate any set of secret keys and make them as compact as single and can decrypt any set of cipher texts by using that compact aggregate key but, files outside the set remain confidential. In this cryptosystem it is possible to efficiently assign decryption rights for the set of cipher texts to any users. The secret key holder can release a constant-size aggregate key for set of cipher texts and this compact aggregate key conveniently shared with others with very limited secure storage. In this paper, we study how to create a decryption key more powerful so that it can allows decryption of multiple cipher texts, without increasing key size. |
| Databáze: | OpenAIRE |
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