发明名称 |
Secure messaging system with derived keys |
摘要 |
Secure messages may be sent between senders and recipients using symmetric message keys. The symmetric message keys may be derived from a master key using a key generator at an organization. A gateway may encrypt outgoing message using the derived keys. Senders in the organization can send messages to recipients who are customers of the organization. The recipients can authenticate to a decryption server in the organization using preestablished credentials. The recipients can be provided with copies of the derived keys for decrypting the encrypted messages. A hierarchical architecture may be used in which a super master key generator at the organization derives master keys for delegated key generators in different units of the organization. An organization may have a policy server that generates non-customer symmetric message keys. The non-customer symmetric message keys may be used to encrypt messages sent by a non-customer sender to a recipient at the organization.
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申请公布号 |
US2006010324(A1) |
申请公布日期 |
2006.01.12 |
申请号 |
US20040887721 |
申请日期 |
2004.07.09 |
申请人 |
APPENZELLER GUIDO;BOYEN XAVIER;SPIES TERENCE |
发明人 |
APPENZELLER GUIDO;BOYEN XAVIER;SPIES TERENCE |
分类号 |
H04L9/00 |
主分类号 |
H04L9/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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