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AWS AmazonCloudFront documentation change

Service: AmazonCloudFront · 2025-08-10 · Documentation medium

File: AmazonCloudFront/latest/DeveloperGuide/secure-connections-supported-viewer-protocols-ciphers.md

Summary

Added TLSv1.3_2025 security policy column and updated cipher/signature scheme compatibility tables to reflect TLS 1.3 support

Security assessment

The changes document support for TLS 1.3 through a new security policy (TLSv1.3_2025), which is a security enhancement but not a direct response to a specific vulnerability. TLS 1.3 improves security by removing obsolete cryptographic algorithms and improving handshake security, but the documentation update itself is proactive rather than reactive to a disclosed issue.

Diff

diff --git a/AmazonCloudFront/latest/DeveloperGuide/secure-connections-supported-viewer-protocols-ciphers.md b/AmazonCloudFront/latest/DeveloperGuide/secure-connections-supported-viewer-protocols-ciphers.md
index de7f9bef8..c1fd62e7c 100644
--- a//AmazonCloudFront/latest/DeveloperGuide/secure-connections-supported-viewer-protocols-ciphers.md
+++ b//AmazonCloudFront/latest/DeveloperGuide/secure-connections-supported-viewer-protocols-ciphers.md
@@ -24 +24 @@ A viewer must support at least one of the supported ciphers to establish an HTTP
-| SSLv3 | TLSv1 | TLSv1_2016 | TLSv1.1_2016 | TLSv1.2_2018 | TLSv1.2_2019 | TLSv1.2_2021  
+| SSLv3 | TLSv1 | TLSv1_2016 | TLSv1.1_2016 | TLSv1.2_2018 | TLSv1.2_2019 | TLSv1.2_2021 | TLSv1.3_2025  
@@ -26,5 +26,5 @@ A viewer must support at least one of the supported ciphers to establish an HTTP
-TLSv1.3 | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦  
-TLSv1.2 | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦  
-TLSv1.1 | ♦ | ♦ | ♦ | ♦ |  |  |   
-TLSv1 | ♦ | ♦ | ♦ |  |  |  |   
-SSLv3 | ♦ |  |  |  |  |  |   
+TLSv1.3 | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦  
+TLSv1.2 | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ |   
+TLSv1.1 | ♦ | ♦ | ♦ | ♦ |  |  |  |   
+TLSv1 | ♦ | ♦ | ♦ |  |  |  |  |   
+SSLv3 | ♦ |  |  |  |  |  |  |   
@@ -32,3 +32,3 @@ SSLv3 | ♦ |  |  |  |  |  |
-TLS_AES_128_GCM_SHA256 | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦  
-TLS_AES_256_GCM_SHA384 | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦  
-TLS_CHACHA20_POLY1305_SHA256 | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦  
+TLS_AES_128_GCM_SHA256 | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦  
+TLS_AES_256_GCM_SHA384 | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦  
+TLS_CHACHA20_POLY1305_SHA256 | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦  
@@ -36,7 +36,7 @@ TLS_CHACHA20_POLY1305_SHA256 | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦
-ECDHE-ECDSA-AES128-GCM-SHA256 | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦  
-ECDHE-ECDSA-AES128-SHA256 | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ |   
-ECDHE-ECDSA-AES128-SHA | ♦ | ♦ | ♦ | ♦ |  |  |   
-ECDHE-ECDSA-AES256-GCM-SHA384 | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦  
-ECDHE-ECDSA-CHACHA20-POLY1305 | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦  
-ECDHE-ECDSA-AES256-SHA384 | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ |   
-ECDHE-ECDSA-AES256-SHA | ♦ | ♦ | ♦ | ♦ |  |  |   
+ECDHE-ECDSA-AES128-GCM-SHA256 | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ |   
+ECDHE-ECDSA-AES128-SHA256 | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ |  |   
+ECDHE-ECDSA-AES128-SHA | ♦ | ♦ | ♦ | ♦ |  |  |  |   
+ECDHE-ECDSA-AES256-GCM-SHA384 | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ |   
+ECDHE-ECDSA-CHACHA20-POLY1305 | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ |   
+ECDHE-ECDSA-AES256-SHA384 | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ |  |   
+ECDHE-ECDSA-AES256-SHA | ♦ | ♦ | ♦ | ♦ |  |  |  |   
@@ -44,14 +44,14 @@ ECDHE-ECDSA-AES256-SHA | ♦ | ♦ | ♦ | ♦ |  |  |
-ECDHE-RSA-AES128-GCM-SHA256 | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦  
-ECDHE-RSA-AES128-SHA256 | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ |   
-ECDHE-RSA-AES128-SHA | ♦ | ♦ | ♦ | ♦ |  |  |   
-ECDHE-RSA-AES256-GCM-SHA384 | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦  
-ECDHE-RSA-CHACHA20-POLY1305 | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦  
-ECDHE-RSA-AES256-SHA384 | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ |   
-ECDHE-RSA-AES256-SHA | ♦ | ♦ | ♦ | ♦ |  |  |   
-AES128-GCM-SHA256 | ♦ | ♦ | ♦ | ♦ | ♦ |  |   
-AES256-GCM-SHA384 | ♦ | ♦ | ♦ | ♦ | ♦ |  |   
-AES128-SHA256 | ♦ | ♦ | ♦ | ♦ | ♦ |  |   
-AES256-SHA | ♦ | ♦ | ♦ | ♦ |  |  |   
-AES128-SHA | ♦ | ♦ | ♦ | ♦ |  |  |   
-DES-CBC3-SHA | ♦ | ♦ |  |  |  |  |   
-RC4-MD5 | ♦ |  |  |  |  |  |   
+ECDHE-RSA-AES128-GCM-SHA256 | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ |   
+ECDHE-RSA-AES128-SHA256 | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ |  |   
+ECDHE-RSA-AES128-SHA | ♦ | ♦ | ♦ | ♦ |  |  |  |   
+ECDHE-RSA-AES256-GCM-SHA384 | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ |   
+ECDHE-RSA-CHACHA20-POLY1305 | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ |   
+ECDHE-RSA-AES256-SHA384 | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ |  |   
+ECDHE-RSA-AES256-SHA | ♦ | ♦ | ♦ | ♦ |  |  |  |   
+AES128-GCM-SHA256 | ♦ | ♦ | ♦ | ♦ | ♦ |  |  |   
+AES256-GCM-SHA384 | ♦ | ♦ | ♦ | ♦ | ♦ |  |  |   
+AES128-SHA256 | ♦ | ♦ | ♦ | ♦ | ♦ |  |  |   
+AES256-SHA | ♦ | ♦ | ♦ | ♦ |  |  |  |   
+AES128-SHA | ♦ | ♦ | ♦ | ♦ |  |  |  |   
+DES-CBC3-SHA | ♦ | ♦ |  |  |  |  |  |   
+RC4-MD5 | ♦ |  |  |  |  |  |  |   
@@ -112,19 +112,19 @@ CloudFront supports the following signature schemes for connections between view
-Signature schemes | SSLv3 | TLSv1 | TLSv1_2016 | TLSv1.1_2016 | TLSv1.2_2018 | TLSv1.2_2019 | and TLSv1.2_2021  
-TLS_SIGNATURE_SCHEME_RSA_PSS_PSS_SHA256 | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦  
-TLS_SIGNATURE_SCHEME_RSA_PSS_PSS_SHA384 | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦  
-TLS_SIGNATURE_SCHEME_RSA_PSS_PSS_SHA512 | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦  
-TLS_SIGNATURE_SCHEME_RSA_PSS_RSAE_SHA256 | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦  
-TLS_SIGNATURE_SCHEME_RSA_PSS_RSAE_SHA384 | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦  
-TLS_SIGNATURE_SCHEME_RSA_PSS_RSAE_SHA512 | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦  
-TLS_SIGNATURE_SCHEME_RSA_PKCS1_SHA256 | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦  
-TLS_SIGNATURE_SCHEME_RSA_PKCS1_SHA384 | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦  
-TLS_SIGNATURE_SCHEME_RSA_PKCS1_SHA512 | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦  
-TLS_SIGNATURE_SCHEME_RSA_PKCS1_SHA224 | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦  
-TLS_SIGNATURE_SCHEME_ECDSA_SHA256 | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦  
-TLS_SIGNATURE_SCHEME_ECDSA_SHA384 | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦  
-TLS_SIGNATURE_SCHEME_ECDSA_SHA512 | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦  
-TLS_SIGNATURE_SCHEME_ECDSA_SHA224 | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦  
-TLS_SIGNATURE_SCHEME_ECDSA_SECP256R1_SHA256 | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦  
-TLS_SIGNATURE_SCHEME_ECDSA_SECP384R1_SHA384 | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦  
-TLS_SIGNATURE_SCHEME_RSA_PKCS1_SHA1 | ♦ | ♦ | ♦ | ♦ |  |  |   
-TLS_SIGNATURE_SCHEME_ECDSA_SHA1 | ♦ | ♦ | ♦ | ♦ |  |  |   
+Signature schemes | SSLv3 | TLSv1 | TLSv1_2016 | TLSv1.1_2016 | TLSv1.2_2018 | TLSv1.2_2019 |  TLSv1.2_2021 | TLSv1.3_2025  
+TLS_SIGNATURE_SCHEME_RSA_PSS_PSS_SHA256 | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦  
+TLS_SIGNATURE_SCHEME_RSA_PSS_PSS_SHA384 | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦  
+TLS_SIGNATURE_SCHEME_RSA_PSS_PSS_SHA512 | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦  
+TLS_SIGNATURE_SCHEME_RSA_PSS_RSAE_SHA256 | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦  
+TLS_SIGNATURE_SCHEME_RSA_PSS_RSAE_SHA384 | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦  
+TLS_SIGNATURE_SCHEME_RSA_PSS_RSAE_SHA512 | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦  
+TLS_SIGNATURE_SCHEME_RSA_PKCS1_SHA256 | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦  
+TLS_SIGNATURE_SCHEME_RSA_PKCS1_SHA384 | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦  
+TLS_SIGNATURE_SCHEME_RSA_PKCS1_SHA512 | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦  
+TLS_SIGNATURE_SCHEME_RSA_PKCS1_SHA224 | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ |   
+TLS_SIGNATURE_SCHEME_ECDSA_SHA256 | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦  
+TLS_SIGNATURE_SCHEME_ECDSA_SHA384 | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦  
+TLS_SIGNATURE_SCHEME_ECDSA_SHA512 | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦  
+TLS_SIGNATURE_SCHEME_ECDSA_SHA224 | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ |   
+TLS_SIGNATURE_SCHEME_ECDSA_SECP256R1_SHA256 | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦  
+TLS_SIGNATURE_SCHEME_ECDSA_SECP384R1_SHA384 | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦  
+TLS_SIGNATURE_SCHEME_RSA_PKCS1_SHA1 | ♦ | ♦ | ♦ | ♦ |  |  |  |   
+TLS_SIGNATURE_SCHEME_ECDSA_SHA1 | ♦ | ♦ | ♦ | ♦ |  |  |  |