When TCP was first invented, was the initial sequence number required to be random?
In current time, when a TCP connection is initiated, the initial sequence number is required to be random.
But I am wondering, when TCP was first invented, was the initial sequence number required to be random, or was this requirement added later?
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asked 6 hours ago
user11455
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In current time, when a TCP connection is initiated, the initial sequence number is required to be random.
But I am wondering, when TCP was first invented, was the initial sequence number required to be random, or was this requirement added later?
history
asked 6 hours ago
user11455
161
New contributor
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2
When TCP was invented, security considerations were unlikely an issue, as at the time there was no concern about adversarial agents.
– Leo B.
2 hours ago
add a comment |
In current time, when a TCP connection is initiated, the initial sequence number is required to be random.
But I am wondering, when TCP was first invented, was the initial sequence number required to be random, or was this requirement added later?
history
asked 6 hours ago
user11455
161
New contributor
user11455 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
In current time, when a TCP connection is initiated, the initial sequence number is required to be random.
But I am wondering, when TCP was first invented, was the initial sequence number required to be random, or was this requirement added later?
history
history
asked 6 hours ago
user11455
161
New contributor
user11455 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 6 hours ago
user11455
161
New contributor
user11455 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 6 hours ago
user11455
161
New contributor
user11455 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 6 hours ago
user11455
161
asked 6 hours ago
user11455
161
161
New contributor
user11455 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
user11455 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
user11455 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
2
When TCP was invented, security considerations were unlikely an issue, as at the time there was no concern about adversarial agents.
– Leo B.
2 hours ago
add a comment |
2
When TCP was invented, security considerations were unlikely an issue, as at the time there was no concern about adversarial agents.
– Leo B.
2 hours ago
2
2
When TCP was invented, security considerations were unlikely an issue, as at the time there was no concern about adversarial agents.
– Leo B.
2 hours ago
When TCP was invented, security considerations were unlikely an issue, as at the time there was no concern about adversarial agents.
– Leo B.
2 hours ago
add a comment |
1 Answer
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It is not actually required that the TCP initial sequence number be random. It would be more correct to say that it is chosen arbitrarily, or to put it another way, that there is no rule specifying how the starting value must be chosen. This means that it can start at 0 for every connection, or at any other number. That same starting value can be used for every new connection, or a new value may be chosen for each one.
For security reasons it's a good idea to choose an actual random value for every individual connection, but there is no actual requirement that it must be done this way.
answered 3 hours ago
Ken Gober
7,49612038
add a comment |
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1 Answer
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1 Answer
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active
oldest
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active
oldest
votes
active
oldest
votes
It is not actually required that the TCP initial sequence number be random. It would be more correct to say that it is chosen arbitrarily, or to put it another way, that there is no rule specifying how the starting value must be chosen. This means that it can start at 0 for every connection, or at any other number. That same starting value can be used for every new connection, or a new value may be chosen for each one.
For security reasons it's a good idea to choose an actual random value for every individual connection, but there is no actual requirement that it must be done this way.
answered 3 hours ago
Ken Gober
7,49612038
add a comment |
It is not actually required that the TCP initial sequence number be random. It would be more correct to say that it is chosen arbitrarily, or to put it another way, that there is no rule specifying how the starting value must be chosen. This means that it can start at 0 for every connection, or at any other number. That same starting value can be used for every new connection, or a new value may be chosen for each one.
For security reasons it's a good idea to choose an actual random value for every individual connection, but there is no actual requirement that it must be done this way.
answered 3 hours ago
Ken Gober
7,49612038
add a comment |
It is not actually required that the TCP initial sequence number be random. It would be more correct to say that it is chosen arbitrarily, or to put it another way, that there is no rule specifying how the starting value must be chosen. This means that it can start at 0 for every connection, or at any other number. That same starting value can be used for every new connection, or a new value may be chosen for each one.
For security reasons it's a good idea to choose an actual random value for every individual connection, but there is no actual requirement that it must be done this way.
answered 3 hours ago
Ken Gober
7,49612038
It is not actually required that the TCP initial sequence number be random. It would be more correct to say that it is chosen arbitrarily, or to put it another way, that there is no rule specifying how the starting value must be chosen. This means that it can start at 0 for every connection, or at any other number. That same starting value can be used for every new connection, or a new value may be chosen for each one.
For security reasons it's a good idea to choose an actual random value for every individual connection, but there is no actual requirement that it must be done this way.
answered 3 hours ago
Ken Gober
7,49612038
answered 3 hours ago
Ken Gober
7,49612038
answered 3 hours ago
Ken Gober
7,49612038
answered 3 hours ago
Ken Gober
7,49612038
7,49612038
add a comment |
add a comment |
user11455 is a new contributor. Be nice, and check out our Code of Conduct.
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2
When TCP was invented, security considerations were unlikely an issue, as at the time there was no concern about adversarial agents.
– Leo B.
2 hours ago