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Cipher Suites for TLS (less than) 1.2 need to indicate "Weak" or "Forward Secrecy" (RE : SSL Labs) #230

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aspadistra opened this issue Jul 13, 2018 · 1 comment

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@aspadistra
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Cipher Suites for TLS (less than) 1.2 need to indicate "Weak" or "Forward Secrecy" (RE : SSL Labs)

https://www.ssllabs.com/ssltest/viewMyClient.html#1531504937607&frame_loaded

Cipher Suites (in order of preference)

TLS_GREASE_8A (0x8a8a) -

TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 (0xcca9) Forward Secrecy 256
TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 (0xcca8) Forward Secrecy 256
TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 (0xc02b) Forward Secrecy 128
TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (0xc02f) Forward Secrecy 128
TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 (0xc02c) Forward Secrecy 256
TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (0xc030) Forward Secrecy 256
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (0xc013) Forward Secrecy 128
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (0xc014) Forward Secrecy 256

TLS_RSA_WITH_AES_128_GCM_SHA256 (0x9c) WEAK 128
TLS_RSA_WITH_AES_256_GCM_SHA384 (0x9d) WEAK 256
TLS_RSA_WITH_AES_128_CBC_SHA (0x2f) WEAK 128
TLS_RSA_WITH_AES_256_CBC_SHA (0x35) WEAK 256
TLS_RSA_WITH_3DES_EDE_CBC_SHA (0xa) WEAK 112

(1) When a browser supports SSL 2, its SSL 2-only suites are shown only on the very first connection to this site. To see the suites, close all browser windows, then open this exact page directly. Don't refresh.

@jmhodges
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jmhodges commented Jul 13, 2018

This ticket was difficult for me to parse. Are you asking for all cipher suites that don’t support forward secrecy to be considered insecure?

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