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    • 10. 发明申请
    • Off-loading data re-encryption in encrypted data management systems
    • 在加密数据管理系统中卸载数据重新加密
    • US20060093150A1
    • 2006-05-04
    • US10976552
    • 2004-10-29
    • Prakash ReddyJames Rowson
    • Prakash ReddyJames Rowson
    • H04L9/00
    • H04L9/0825H04L9/0891H04L2209/60
    • Described is a solution for maintaining the security of encrypted data despite a compromised private key by using a re-encryption process that does not require decryption of the encrypted data. The compromised private key is re-encrypted using a new public key as is the encrypted symmetric key which the compromised private key can decrypt. When a decrypted version of the encrypted data is requested, the private key corresponding to the new public key decrypts both the encrypted version of the compromised private key and the re-encrypted version of the symmetric key resulting in the unencrypted compromised private key and the previously encrypted version of the symmetric key, which when decrypted using the compromised private key decrypts the encrypted data. The unencrypted symmetric key can then be encrypted using the new public key any encrypted compromised private key can be deleted.
    • 描述了一种用于通过使用不需要解密加密数据的重新加密过程来保护加密数据的安全性的解决方案,尽管受到妥协的私钥。 受损的私有密钥使用新的公钥重新加密,以及受损私钥可以解密的加密对称密钥。 当请求加密数据的解密版本时,对应于新公共密钥的私有密钥解密受损私钥的加密版本和对称密钥的重新加密版本,导致未加密的受损密钥和先前 对称密钥的加密版本,当使用受到破坏的私钥进行解密时解密加密数据。 然后可以使用新的公钥对未加密的对称密钥进行加密,任何加密的受损私钥可被删除。