From: Ensuring user authentication and data integrity in multi-cloud environment

Annotation | Definition |
---|---|

PU, PR | Public key, private key |

M, C | Original message, encrypted massage |

Ai,Aj (i,jϵ(1,n)) | User identity |

F() | Stands for encryption |

F′() | Stands for decryption |

Φ(n) | The totient of n |

PR(A) | A’s private key |

PU(A) | A’s public key |

PU(B) | B’s public key |

PR(B) | B’s private key |

p, q | Two different primes |