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crypto/tls: remove SSLv3 support

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SSLv3 has been irreparably broken since the POODLE attack 5 years ago
and RFC 7568 (f.k.a. draft-ietf-tls-sslv3-diediedie) prohibits its use
in no uncertain terms.

As announced in the Go 1.13 release notes, remove support for it
entirely in Go 1.14.

Updates #32716

Change-Id: Id653557961d8f75f484a01e6afd2e104a4ccceaf
Reviewed-on: https://go-review.googlesource.com/c/go/+/191976
Run-TryBot: Filippo Valsorda <filippo@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
This commit is contained in:
Filippo Valsorda 2019-08-27 17:27:45 -04:00
parent 63a961538b
commit 018f13d1a3
16 changed files with 34 additions and 474 deletions
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8
auth_test.go
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@ -32,7 +32,6 @@ func TestSignatureSelection(t *testing.T) {
// https://tools.ietf.org/html/rfc4346#page-44
{rsaCert, nil, nil, VersionTLS11, 0, signaturePKCS1v15, crypto.MD5SHA1},
{rsaCert, nil, nil, VersionTLS10, 0, signaturePKCS1v15, crypto.MD5SHA1},
{rsaCert, nil, nil, VersionSSL30, 0, signaturePKCS1v15, crypto.MD5SHA1},
// Before TLS 1.2, there is no signature_algorithms extension
// nor field in CertificateRequest and digitally-signed and thus
@ -95,13 +94,6 @@ func TestSignatureSelection(t *testing.T) {
{ecdsaCert, []SignatureScheme{Ed25519}, []SignatureScheme{Ed25519}, VersionTLS12},
{ed25519Cert, nil, nil, VersionTLS11},
{ed25519Cert, nil, nil, VersionTLS10},
{ed25519Cert, nil, nil, VersionSSL30},
// ECDSA is unspecified for SSL 3.0 in RFC 4492.
// TODO a SSL 3.0 client cannot advertise signature_algorithms,
// but if an application feeds an ECDSA certificate anyway, it
// will be accepted rather than trigger a handshake failure. Ok?
//{ecdsaCert, nil, nil, VersionSSL30},
}
for testNo, test := range badTests {