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Add Java 17 LTS

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* amend documentation
* remove TLS 1.3 ciphers in ch_ciphers for consistency reasons
This commit is contained in:
Dirk Wetter
2022-05-04 15:46:36 +02:00
parent 52ed4181f9
commit 415043865a
4 changed files with 83 additions and 37 deletions
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6
etc/client-simulation.wiresharked.md
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@ -13,14 +13,14 @@ The whole process is manual but not too difficult.
* Edit `client-simulation.wiresharked.txt` and insert a new section, preferably by copying a previous version of the client from it.
* Edit the *names* accordingly and "short". The latter must not contain blanks.
* Retrieve *handshakebytes* by marking the "TLS 1.x Record Layer" --> Copy --> As a hex stream.
* Figure out *protos* and *tlsvers* by looking at the "supported_versions" TLS extension (43=0x002b). May work only with recent clients. Be careful as some do not list all TLS versions here (OpenSSL 1.1.1 listed only TLS 1.2/1.3).
* For *ch_ciphers* mark "Cipher Suites" --> Copy --> As a hex stream, remove any leading GREASE ciphers (?a?a) and supply it to `~/utils/hexstream2cipher.sh`. For consistency reasons it is preferred you remove the TLS 1.3 ciphers before which start with TLS\*.
* *ciphersuites* are TLS 1.3 ciphersuites. You can identify them as they currently are like 0x130?. Retrieve them from above see `~/utils/hexstream2cipher.sh`. They start with TLS\*.
* Figure out *protos* and *tlsvers* by looking at the *supported_versions* TLS extension (43=0x002b). May work only with recent clients. Be careful as some do not list all TLS versions here (OpenSSL 1.1.1 listed only TLS 1.2/1.3).
* Adjust *lowest_protocol* and *highest_protocol* accordingly.
* For *curves* mark the "supported groups" TLS extension --> Copy --> As a hex stream, remove any leading GREASE ciphers (?a?a) and supply it to `~/utils/hexstream2curves.sh`. Ignore any ffdhe\* values here.
* Retrieve *alpn* by looking at the "alpn" TLS extension 16 (=0x0010).
* Review TLS extension 13 (=0x000d) "signature_algorithm" whether any SHA1 signature algorithm is listed. If not *requiresSha2* is true.
* Leave *maxDhBits*/*minDhBits* and *minRsaBits*/*maxRsaBit* at -1, unless you know for sure what the client can handle.
* For *ch_ciphers* mark "Cipher Suites" --> Copy --> As a hex stream, remove any leading GREASE ciphers (?a?a) and supply it to `~/utils/hexstream2cipher.sh`
* *ciphersuites* are TLS 1.3 ciphersuites. You can identify them as they currently are like 0x130?. Retrieve them from above see `~/utils/hexstream2cipher.sh`
* Figure out the *services* by applying a good piece of human logic. A (modern) browser is probably "HTTP", OpenSSL or Java "ANY" whereas Thunderbird supports a variety of protocols.
* When you're done copy your inserted section from `client-simulation.wiresharked.txt` into `client-simulation.txt`.
* Before submitting a PR: test it yourself! You can also watch it again via wireshark.