bpo-32602: Test ECDSA certs (#5247)

Add test certs and test for ECDSA cert and EC/RSA dual mode.

I'm also adding certs for IDNA 2003/2008 tests and simplify some test
data handling.

Signed-off-by: Christian Heimes <christian@python.org>

1 files changed, 45 insertions, 27 deletions

diff --git a/Lib/test/keycert2.pem b/Lib/test/keycert2.pem
index e8a9e08..bb5fa65 100644
--- a/Lib/test/keycert2.pem
+++ b/Lib/test/keycert2.pem
@@ -1,31 +1,49 @@
 -----BEGIN PRIVATE KEY-----
-MIICdwIBADANBgkqhkiG9w0BAQEFAASCAmEwggJdAgEAAoGBAJnsJZVrppL+W5I9
-zGQrrawWwE5QJpBK9nWw17mXrZ03R1cD9BamLGivVISbPlRlAVnZBEyh1ATpsB7d
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-w7DXSfUF+kPKolU=
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 -----END PRIVATE KEY-----
 -----BEGIN CERTIFICATE-----
-MIICXTCCAcagAwIBAgIJAIO3upAG445fMA0GCSqGSIb3DQEBBQUAMGIxCzAJBgNV
-BAYTAlhZMRcwFQYDVQQHEw5DYXN0bGUgQW50aHJheDEjMCEGA1UEChMaUHl0aG9u
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 -----END CERTIFICATE-----