Knowledge Base

B

Encryption Algorithm: Camellia

Summary

Security

Encryption algorithm Camellia[318][319][320][321] is a block cipher[78][79][80][81] which is considered secure[322][323], but leading client applications do not use this algorithm. Unless your application or requirements specifically call for their use, it is generally safer to avoid cipher suites that are not adopted and supported by a critical mass of the industry.

Suggestion

Remove the cipher suite from the list of cipher suites supported by your server.

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Config Snippets

You can fix your security setting with the following config snippets in various services. You simply copy-paste (or delete) them to get a better secirity and grade. Do not forget to re-check your modified settings above.

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Apache
OpenSSL version: 0.9.8+
SSLCipherSuite …:!CAMELLIA
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NGINX
OpenSSL version: 0.9.8+
ssl_ciphers …:!CAMELLIA

Affected Cipher Suites

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TLS_DHE_DSS_WITH_CAMELLIA_128_CBC_SHA TLS_DHE_DSS_WITH_CAMELLIA_128_CBC_SHA256 TLS_DHE_DSS_WITH_CAMELLIA_128_GCM_SHA256 TLS_DHE_DSS_WITH_CAMELLIA_256_CBC_SHA TLS_DHE_DSS_WITH_CAMELLIA_256_CBC_SHA256 TLS_DHE_DSS_WITH_CAMELLIA_256_GCM_SHA384 TLS_DHE_PSK_WITH_CAMELLIA_128_CBC_SHA256 TLS_DHE_PSK_WITH_CAMELLIA_128_GCM_SHA256 TLS_DHE_PSK_WITH_CAMELLIA_256_CBC_SHA384 TLS_DHE_PSK_WITH_CAMELLIA_256_GCM_SHA384 TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 TLS_DHE_RSA_WITH_CAMELLIA_128_GCM_SHA256 TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256 TLS_DHE_RSA_WITH_CAMELLIA_256_GCM_SHA384 TLS_DH_DSS_WITH_CAMELLIA_128_CBC_SHA TLS_DH_DSS_WITH_CAMELLIA_128_CBC_SHA256 TLS_DH_DSS_WITH_CAMELLIA_128_GCM_SHA256 TLS_DH_DSS_WITH_CAMELLIA_256_CBC_SHA TLS_DH_DSS_WITH_CAMELLIA_256_CBC_SHA256 TLS_DH_DSS_WITH_CAMELLIA_256_GCM_SHA384 TLS_DH_RSA_WITH_CAMELLIA_128_CBC_SHA TLS_DH_RSA_WITH_CAMELLIA_128_CBC_SHA256 TLS_DH_RSA_WITH_CAMELLIA_128_GCM_SHA256 TLS_DH_RSA_WITH_CAMELLIA_256_CBC_SHA TLS_DH_RSA_WITH_CAMELLIA_256_CBC_SHA256 TLS_DH_RSA_WITH_CAMELLIA_256_GCM_SHA384 TLS_DH_anon_WITH_CAMELLIA_128_CBC_SHA TLS_DH_anon_WITH_CAMELLIA_128_CBC_SHA256 TLS_DH_anon_WITH_CAMELLIA_128_GCM_SHA256 TLS_DH_anon_WITH_CAMELLIA_256_CBC_SHA TLS_DH_anon_WITH_CAMELLIA_256_CBC_SHA256 TLS_DH_anon_WITH_CAMELLIA_256_GCM_SHA384 TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_CBC_SHA256 TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_GCM_SHA256 TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_CBC_SHA384 TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_GCM_SHA384 TLS_ECDHE_PSK_WITH_CAMELLIA_128_CBC_SHA256 TLS_ECDHE_PSK_WITH_CAMELLIA_256_CBC_SHA384 TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 TLS_ECDHE_RSA_WITH_CAMELLIA_128_GCM_SHA256 TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384 TLS_ECDHE_RSA_WITH_CAMELLIA_256_GCM_SHA384 TLS_ECDH_ECDSA_WITH_CAMELLIA_128_CBC_SHA256 TLS_ECDH_ECDSA_WITH_CAMELLIA_128_GCM_SHA256 TLS_ECDH_ECDSA_WITH_CAMELLIA_256_CBC_SHA384 TLS_ECDH_ECDSA_WITH_CAMELLIA_256_GCM_SHA384 TLS_ECDH_RSA_WITH_CAMELLIA_128_CBC_SHA256 TLS_ECDH_RSA_WITH_CAMELLIA_128_GCM_SHA256 TLS_ECDH_RSA_WITH_CAMELLIA_256_CBC_SHA384 TLS_ECDH_RSA_WITH_CAMELLIA_256_GCM_SHA384 TLS_PSK_WITH_CAMELLIA_128_CBC_SHA256 TLS_PSK_WITH_CAMELLIA_128_GCM_SHA256 TLS_PSK_WITH_CAMELLIA_256_CBC_SHA384 TLS_PSK_WITH_CAMELLIA_256_GCM_SHA384 TLS_RSA_PSK_WITH_CAMELLIA_128_CBC_SHA256 TLS_RSA_PSK_WITH_CAMELLIA_128_GCM_SHA256 TLS_RSA_PSK_WITH_CAMELLIA_256_CBC_SHA384 TLS_RSA_PSK_WITH_CAMELLIA_256_GCM_SHA384 TLS_RSA_WITH_CAMELLIA_128_CBC_SHA TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256 TLS_RSA_WITH_CAMELLIA_128_GCM_SHA256 TLS_RSA_WITH_CAMELLIA_256_CBC_SHA TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256 TLS_RSA_WITH_CAMELLIA_256_GCM_SHA384