Origin Server SSL Ciphers Supported by Cloudflare

Below is the list of origin server SSL Ciphers that Cloudflare supports.


TLS 1.2 and earlier

  • ECDHE-ECDSA-AES128-GCM-SHA256
  • ECDHE-RSA-AES128-GCM-SHA256
  • ECDHE-RSA-AES128-SHA
  • AES128-GCM-SHA256
  • AES128-SHA
  • ECDHE-ECDSA-AES256-GCM-SHA384
  • ECDHE-RSA-AES256-SHA384
  • AES256-SHA
  • DES-CBC3-SHA

TLS 1.3

TLS_AES_128_GCM_SHA256

{0x13,0x01}

TLS_AES_256_GCM_SHA384

{0x13,0x02}

TLS_CHACHA20_POLY1305_SHA256

{0x13,0x03}

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