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crypto/tls: align FIPS-only mode with BoringSSL policy

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This enables TLS 1.3, disables P-521, and disables non-ECDHE suites.

Reapplies CL 549975.

Updates #64717
Updates #62372

Change-Id: I6c608704638d59a063a657fbd4eb1126027112dd
Reviewed-on: https://go-review.googlesource.com/c/go/+/603376
Reviewed-by: Roland Shoemaker <roland@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: David Chase <drchase@google.com>
This commit is contained in:
Filippo Valsorda 2023-12-14 22:13:29 +01:00
parent 0d9e15f699
commit 309a3593cd
7 changed files with 70 additions and 37 deletions
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8
defaults.go
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@ -90,13 +90,16 @@ var defaultCipherSuitesTLS13NoAES = []uint16{
TLS_AES_256_GCM_SHA384,
}
// The FIPS-only policies below match BoringSSL's ssl_policy_fips_202205.
var defaultSupportedVersionsFIPS = []uint16{
VersionTLS12,
VersionTLS13,
}
// defaultCurvePreferencesFIPS are the FIPS-allowed curves,
// in preference order (most preferable first).
var defaultCurvePreferencesFIPS = []CurveID{CurveP256, CurveP384, CurveP521}
var defaultCurvePreferencesFIPS = []CurveID{CurveP256, CurveP384}
// defaultSupportedSignatureAlgorithmsFIPS currently are a subset of
// defaultSupportedSignatureAlgorithms without Ed25519 and SHA-1.
@ -109,7 +112,6 @@ var defaultSupportedSignatureAlgorithmsFIPS = []SignatureScheme{
PKCS1WithSHA384,
ECDSAWithP384AndSHA384,
PKCS1WithSHA512,
ECDSAWithP521AndSHA512,
}
// defaultCipherSuitesFIPS are the FIPS-allowed cipher suites.
@ -118,8 +120,6 @@ var defaultCipherSuitesFIPS = []uint16{
TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,
TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,
TLS_RSA_WITH_AES_128_GCM_SHA256,
TLS_RSA_WITH_AES_256_GCM_SHA384,
}
// defaultCipherSuitesTLS13FIPS are the FIPS-allowed cipher suites for TLS 1.3.