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Найти наборы шифров, предлагаемые клиентами в TLS

У вас есть два варианта, я думаю:

$BASHPID или $! 

echo "version: $BASH_VERSION"
function abc() # wait for some event to happen, can be terminated by other process
{
          echo "inside a subshell $BASHPID" # This gives you the PID of the current instance of Bash.
          sleep 3333
}

echo "PID: $$" # (i)
abc &
echo "PID: $$" # (ii)
echo "another way $!" # This gives you the PID of the last job run in background
echo "same than (i) and (ii) $BASHPID" # This should print the same result than (i) and (ii)

sh-4.2$ ps ax|grep foo
25094 pts/13   S      0:02 vim foo.sh
25443 pts/13   S+     0:00 grep foo

sh-4.2$ ./foo.sh
version: 4.2.39(2)-release
PID: 25448
PID: 25448
another way 25449
same than (i) and (ii) 25448
inside a subshell 25449

sh-4.2$ ps ax|grep foo
25094 pts/13   S      0:02 vim foo.sh
25449 pts/13   S      0:00 /bin/bash ./foo.sh
25452 pts/13   S+     0:00 grep foo

Cheers,

Source: http://tldp.org/LDP/abs/html/internalvariables.html

-1
10.07.2018, 10:03
1 ответ

Если вы используете следующие переключатели для tshark, вы можете получить более подробный список квитирования Client Hello:

$ tshark -r assign2.pcap -Y ssl.handshake.ciphersuites -Vx | less

Если вы выполните поиск в выводе lessв поисках /Client Hello, вы найдете этот раздел:

SSL Record Layer: Handshake Protocol: Client Hello
    Content Type: Handshake (22)
    Version: TLS 1.0 (0x0301)
    Length: 246
    Handshake Protocol: Client Hello
        Handshake Type: Client Hello (1)
        Length: 242
        Version: TLS 1.2 (0x0303)
        Random
            gmt_unix_time: Mar 17, 2068 11:26:39.000000000 EDT
            random_bytes: 981fbf58a3116dd17c64b602e2809de75dac922eb559a0ba...
        Session ID Length: 0
        Cipher Suites Length: 108
        Cipher Suites (54 suites)
            Cipher Suite: TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 (0xc02c)
            Cipher Suite: TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (0xc030)
            Cipher Suite: TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 (0x009f)
            Cipher Suite: Unknown (0xcca9)
            Cipher Suite: Unknown (0xcca8)
            Cipher Suite: Unknown (0xccaa)
            Cipher Suite: TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 (0xc02b)
            Cipher Suite: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (0xc02f)
            Cipher Suite: TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 (0x009e)
            Cipher Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384 (0xc024)
            Cipher Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 (0xc028)
            Cipher Suite: TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 (0x006b)
            Cipher Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256 (0xc023)
            Cipher Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 (0xc027)
            Cipher Suite: TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 (0x0067)
            Cipher Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA (0xc00a)
            Cipher Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (0xc014)
            Cipher Suite: TLS_DHE_RSA_WITH_AES_256_CBC_SHA (0x0039)
            Cipher Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA (0xc009)
            Cipher Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (0xc013)
            Cipher Suite: TLS_DHE_RSA_WITH_AES_128_CBC_SHA (0x0033)
            Cipher Suite: TLS_RSA_PSK_WITH_AES_256_GCM_SHA384 (0x00ad)
            Cipher Suite: TLS_DHE_PSK_WITH_AES_256_GCM_SHA384 (0x00ab)
            Cipher Suite: Unknown (0xccae)
            Cipher Suite: Unknown (0xccad)
            Cipher Suite: Unknown (0xccac)
            Cipher Suite: TLS_RSA_WITH_AES_256_GCM_SHA384 (0x009d)
            Cipher Suite: TLS_PSK_WITH_AES_256_GCM_SHA384 (0x00a9)
            Cipher Suite: Unknown (0xccab)
            Cipher Suite: TLS_RSA_PSK_WITH_AES_128_GCM_SHA256 (0x00ac)
            Cipher Suite: TLS_DHE_PSK_WITH_AES_128_GCM_SHA256 (0x00aa)
            Cipher Suite: TLS_RSA_WITH_AES_128_GCM_SHA256 (0x009c)
            Cipher Suite: TLS_PSK_WITH_AES_128_GCM_SHA256 (0x00a8)
            Cipher Suite: TLS_RSA_WITH_AES_256_CBC_SHA256 (0x003d)
            Cipher Suite: TLS_RSA_WITH_AES_128_CBC_SHA256 (0x003c)
            Cipher Suite: TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA384 (0xc038)
            Cipher Suite: TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA (0xc036)
            Cipher Suite: TLS_RSA_PSK_WITH_AES_256_CBC_SHA384 (0x00b7)
            Cipher Suite: TLS_DHE_PSK_WITH_AES_256_CBC_SHA384 (0x00b3)
            Cipher Suite: TLS_RSA_PSK_WITH_AES_256_CBC_SHA (0x0095)
            Cipher Suite: TLS_DHE_PSK_WITH_AES_256_CBC_SHA (0x0091)
            Cipher Suite: TLS_RSA_WITH_AES_256_CBC_SHA (0x0035)
            Cipher Suite: TLS_PSK_WITH_AES_256_CBC_SHA384 (0x00af)
            Cipher Suite: TLS_PSK_WITH_AES_256_CBC_SHA (0x008d)
            Cipher Suite: TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256 (0xc037)
            Cipher Suite: TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA (0xc035)
            Cipher Suite: TLS_RSA_PSK_WITH_AES_128_CBC_SHA256 (0x00b6)
            Cipher Suite: TLS_DHE_PSK_WITH_AES_128_CBC_SHA256 (0x00b2)
            Cipher Suite: TLS_RSA_PSK_WITH_AES_128_CBC_SHA (0x0094)
            Cipher Suite: TLS_DHE_PSK_WITH_AES_128_CBC_SHA (0x0090)
            Cipher Suite: TLS_RSA_WITH_AES_128_CBC_SHA (0x002f)
            Cipher Suite: TLS_PSK_WITH_AES_128_CBC_SHA256 (0x00ae)
            Cipher Suite: TLS_PSK_WITH_AES_128_CBC_SHA (0x008c)
            Cipher Suite: TLS_EMPTY_RENEGOTIATION_INFO_SCSV (0x00ff)
        Compression Methods Length: 1
...

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4
28.01.2020, 05:08

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