发明名称 |
Secret hashing for TCP SYN/FIN correspondence |
摘要 |
A mechanism for detecting denial of service attacks in a digital communications system is described. A probabilistically determined portion of input packets of a connection are processed using a hash function to determine whether the packets belong to the flow initiated by a TCP SYN packet. The hash function includes a secret key for additional security. The result of the hash function is added to a value which is dependent on the sequence number of a packet being processed.
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申请公布号 |
US7373663(B2) |
申请公布日期 |
2008.05.13 |
申请号 |
US20020316883 |
申请日期 |
2002.12.12 |
申请人 |
ALCATEL CANADA INC. |
发明人 |
ROBERT JEAN-MARC |
分类号 |
G06F11/00;G06F12/14;G06F12/16;G06F15/18;G08B23/00;H04L29/06 |
主分类号 |
G06F11/00 |
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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