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Remove ciphersuites without Lucky13 countermeasures

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SHA-256 variants of the CBC ciphersuites don't implement any Lucky13
countermeasures. See http://www.isg.rhul.ac.uk/tls/Lucky13.html and
https://www.imperialviolet.org/2013/02/04/luckythirteen.html.
pull/1009/head
Mariano Cano 2 years ago
parent d6baad443b
commit a5439c43cd
1 changed files with 10 additions and 9 deletions
Show Stats Download Patch File Download Diff File

19
authority/config/tls_options.go
Unescape Escape View File

@ -22,18 +22,19 @@ var (
} }
// ApprovedTLSCipherSuites smallstep approved ciphersuites. // ApprovedTLSCipherSuites smallstep approved ciphersuites.
ApprovedTLSCipherSuites = CipherSuites{ ApprovedTLSCipherSuites = CipherSuites{
"TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA", // AEADs w/ ECDHE
"TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256",
"TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256", "TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256",
"TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA", "TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256",
"TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384", "TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384",
"TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384",
"TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256", "TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256",
"TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256",
// CBC w/ ECDHE
"TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA",
"TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA",
"TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA", "TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA",
"TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256",
"TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256",
"TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA", "TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA",
"TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384",
"TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256",
} }
// DefaultTLSOptions represents the default TLS version as well as the cipher // DefaultTLSOptions represents the default TLS version as well as the cipher
// suites used in the TLS certificates. // suites used in the TLS certificates.
@ -146,8 +147,8 @@ var cipherSuites = map[string]uint16{
"TLS_CHACHA20_POLY1305_SHA256": tls.TLS_CHACHA20_POLY1305_SHA256, "TLS_CHACHA20_POLY1305_SHA256": tls.TLS_CHACHA20_POLY1305_SHA256,
// Legacy names. // Legacy names.
"TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305": tls.TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305, "TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305": tls.TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256,
"TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305": tls.TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305, "TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305": tls.TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256,
} }
// TLSOptions represents the TLS options that can be specified on *tls.Config // TLSOptions represents the TLS options that can be specified on *tls.Config

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