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    • 10. 发明申请
    • Methods and systems for key recovery for a token
    • 用于令牌的密钥恢复的方法和系统
    • US20070280483A1
    • 2007-12-06
    • US11447179
    • 2006-06-06
    • Christina FuNang Kon KwanSteven William ParkinsonRobert Relyea
    • Christina FuNang Kon KwanSteven William ParkinsonRobert Relyea
    • H04L9/00
    • H04L9/0822H04L9/0897
    • Methods, systems and computer readable mediums are provided for recovering keys. A key transport session key is generated, and a key encryption key is derived based on a server master key and an identification associated with a token. The key transport session key is encrypted with the key encryption key as a first wrapped key transport session key. An encrypted storage session key and an encrypted private key are retrieved from an archive. The encrypted storage session key is decrypted with a server storage key as a storage session key. The encrypted private key is decrypted with the storage session key. The decrypted private key is encrypted with the key transport session key as a wrapped private key. The wrapped private key and the first wrapped key transport session key are forwarded.
    • 提供方法,系统和计算机可读介质用于恢复密钥。 生成密钥传输会话密钥,并且基于服务器主密钥和与令牌相关联的标识来导出密钥加密密钥。 密钥传输会话密钥通过密钥加密密钥加密,作为第一个包装密钥传输会话密钥。 从归档中检索加密的存储会话密钥和加密的私钥。 加密存储会话密钥用服务器存储密钥解密为存储会话密钥。 加密的私钥用存储会话密钥解密。 解密的私钥用密钥传输会话密钥作为包装的私钥加密。 包裹的私钥和第一个包裹密钥传输会话密钥被转发。