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feat: add padding to requests & responses

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This commit is contained in:
tobyxdd 2023-05-31 21:53:15 -07:00
parent 9f54aade8f
commit ebb9b3217e
5 changed files with 374 additions and 305 deletions
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26
core/internal/protocol/padding.go Normal file
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@ -0,0 +1,26 @@
package protocol
import (
"math/rand"
"strings"
)
// padding specifies a half-open range [Min, Max).
type padding struct {
Min int
Max int
}
func (p padding) String() string {
n := p.Min + rand.Intn(p.Max-p.Min)
return strings.Repeat("a", n) // No need to randomize since everything is encrypted anyway
}
var (
authRequestPadding = padding{Min: 256, Max: 2048}
authResponsePadding = padding{Min: 256, Max: 2048}
tcpRequestPadding = padding{Min: 64, Max: 512}
tcpResponsePadding = padding{Min: 128, Max: 1024}
udpRequestPadding = padding{Min: 64, Max: 512}
udpResponsePadding = padding{Min: 128, Max: 1024}
)