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doc: write the list of supported cipher suites in TCM #5374

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64 changes: 57 additions & 7 deletions doc/tooling/tcm/tcm_configuration_reference.rst
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Expand Up @@ -654,13 +654,63 @@ The ``http`` group defines parameters of HTTP connections between |tcm| and clie

.. confval:: http.tls.cipher-suites

Enabled TLS cipher suites. Possible values are the Golang `tls.TLS_* <https://pkg.go.dev/crypto/tls#pkg-constants>`__ constants.

|
| Type: []uint16
| Default: []
| Environment variable: TCM_HTTP_TLS_CIPHER_SUITES
| Command-line option: ``--http.tls.cipher-suites``
Enabled TLS cipher suites. The supported ciphers are:

- TLS 1.0 - 1.2 cipher suites:
- TLS_RSA_WITH_RC4_128_SHA
- TLS_RSA_WITH_3DES_EDE_CBC_SHA
- TLS_RSA_WITH_AES_128_CBC_SHA
- TLS_RSA_WITH_AES_256_CBC_SHA
- TLS_RSA_WITH_AES_128_CBC_SHA256
- TLS_RSA_WITH_AES_128_GCM_SHA256
- TLS_RSA_WITH_AES_256_GCM_SHA384
- TLS_ECDHE_ECDSA_WITH_RC4_128_SHA
- TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
- TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
- TLS_ECDHE_RSA_WITH_RC4_128_SHA
- TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA
- TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
- TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
- TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256
- TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256
- TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
- TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
- TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
- TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
- TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256
- TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256

- TLS 1.3 cipher suites:
- TLS_AES_128_GCM_SHA256
- TLS_AES_256_GCM_SHA384
- TLS_CHACHA20_POLY1305_SHA256
- TLS_FALLBACK_SCSV isn't a standard cipher suite but an indicator that the client is doing version fallback
- TLS_FALLBACK_SCSV uint16 = 0x5600
- TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305 = TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256
- TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305 = TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA25

For detailed information on ciphers, refer to the Golang `tls.TLS_* <https://pkg.go.dev/crypto/tls#pkg-constants>`__ constants.

The example below shows how to configure cipher suites:

.. code-block:: yaml

http:
cipher-suites:
- TLS_AES_256_GCM_SHA384
- TLS_AES_128_GCM_SHA256
- TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
- TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
- TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
- TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
- TLS_DHE_RSA_WITH_AES_256_GCM_SHA384
- TLS_DHE_RSA_WITH_AES_128_GCM_SHA256

|
| Type: []uint16
| Default: []
| Environment variable: TCM_HTTP_TLS_CIPHER_SUITES
| Command-line option: ``--http.tls.cipher-suites``

.. _tcm_configuration_reference_http_read-timeout:

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