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    • 4. 发明授权
    • Detection of invalid escrow keys
    • 检测无效代管钥匙
    • US08667284B2
    • 2014-03-04
    • US13350360
    • 2012-01-13
    • Venkataramann RenganathanBrian Thomas CarverDaniel Browne JumpDavid Charles LeBlancSamuel Ira Weiss
    • Venkataramann RenganathanBrian Thomas CarverDaniel Browne JumpDavid Charles LeBlancSamuel Ira Weiss
    • G06F7/04
    • H04L9/0894G06F21/64H04L9/3242H04L9/3263
    • A secure hash, such as a Hash-based Message Authentication Code (“HMAC”), is generated using a piece of secret information (e.g., a secret key) and a piece of public information specific to each escrow key (e.g., a certificate hash or public key). Using the secret key ensures that escrow key validation data can only be generated by knowing the secret key, which prevents an attacker from generating the appropriate escrow key validation data. Using the certificate hash as the public data ties each escrow key validation data to a particular certificate, thereby preventing the attacker from simply copying the validation data from another escrow key. Any escrow key that is found to be invalid may be removed from the file container and a system audit log may be generated so that a company, individual, or other entity can be aware of the possible attempt at a security breach.
    • 使用秘密信息(例如,秘密密钥)和每个暂存密钥专用的一条公共信息(例如,证书(例如,证书))生成诸如基于哈希的消息认证码(“HMAC”)的安全散列 散列或公钥)。 使用秘密密钥确保托管密钥验证数据只能通过知道密钥生成,从而防止攻击者生成适当的托管密钥验证数据。 使用证书哈希作为公共数据将每个托管密钥验证数据与特定证书相关联,从而防止攻击者简单地从另一个托管密钥复制验证数据。 发现无效的任何托管密钥可能会从文件容器中删除,并且可能会生成系统审核日志,以便公司,个人或其他实体可以意识到安全漏洞可能的尝试。