In OPIE, each time a successful response is received by the system, the sequence number is decremented.
OPIEでは、システムが受け取るレスポンスが成功する度にシーケンス番号は減っていきます。
In OPIE, each time a successful response is received by the system, the sequence number is decremented.
OPIEで、成功した応答がシステムによって受け取られるたびに、シーケンス番号は、減少します。
Since this is the first message we have signed, the sequence number is zero("0x00000000").
ここでは署名する最初のメッセージだとしよう。シーケンス番号は0(「0x00000000」)となる。
A flaw in the sequence number generator of many TCP/IP implementations allows intruders to easily impersonate trusted hosts and to break in via, for example, the remote shell service.
Both are valid, but they have the same exact transaction data, including the Sequence number, so at most one of them can ever be included in a validated ledger.
To prevent message replay or modification attacks, the MAC is computed from the MAC secret, the sequence number, the message length, the message contents, and two fixed character strings.
The SAD entry for the SA also indicates whether the Sequence Number field will be checked and whether 32- or 64-bit sequence numbers are employed for the SA.
A flaw in the sequence number generator of many TCP/IP implementations allows intruders to easily impersonate trusted hosts and to break in via, for example, the remote shell service.
If you re-create transactions to be multi-signed, do not change the Sequence number unless you have manually confirmed that the intended actions have not already executed.
The sequence number(Seq), at the time of the TCP 3way handshake of TCP syn and TCP syn/ack transmission when put a TCP connection, terminal each, determines the initial value to the random.
The SA indicates whether the Sequence Number field will be checked, specifies the algorithm(s) employed for ICV computation, and indicates the key(s) required to validate the ICV.
For example, it is 80 if a http connection to the Web server, and it is 23 if a telnet connection to the telnet server. The sequence number/ acknowledgment numberBoth 32bit.
For each received packet, the receiver MUST verify that the packet contains a Sequence Number that does not duplicate the Sequence Number of any other packets received during the life of this SA.
The high-order 32 bits are maintained as part of the sequence number counter by both transmitter and receiver and are included in the computation of the ICV, but are not transmitted.
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