Supported-list-of-negotiable-ciphers-on-our-service-endpoints-in-Microsoft-Azure

This change is to update the SSL cipher suite order and the removal of the RC4 ciphers from the suite.

The Cipher Suite order determines the cipher suites used by the SSL/TLS.

The following cipher suite order is used:

TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384_P384

TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256_P256

TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P256

TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256

TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA_P256

TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA_P256

TLS_RSA_WITH_AES_256_GCM_SHA384

TLS_RSA_WITH_AES_128_GCM_SHA256

TLS_RSA_WITH_AES_256_CBC_SHA256

TLS_RSA_WITH_AES_128_CBC_SHA256

TLS_RSA_WITH_AES_256_CBC_SHA

TLS_RSA_WITH_AES_128_CBC_SHA

TLS_RSA_WITH_3DES_EDE_CBC_SHA

For more information:
https://docs.microsoft.com/en-us/archive/blogs/azuresecurity/azure-cipher-suite-change-removes-rc4-support

HTH. 2020-June-3 By Jacky