Change CrlBuilderTests to use a static RSA key with better support.

[bartonjs]

Change from using the "big exponent" key to some other key (which uses the normal exponent of F5), as not all versions of Android like big exponent keys.

Fixes #114772.

[Copilot]

Pull Request Overview

This PR updates the CrlBuilderTests to use a static RSA key with the common F5 exponent rather than the previously used big exponent key, addressing compatibility issues on some Android versions.

• Updated expected hex output values throughout the tests to match the new RSA key.
• Replaced the creation of RSA using TestData.RsaBigExponentParams with RSA.Create() followed by ImportFromPem(TestData.RsaPkcs8Key).
• Adjusted various expected byte arrays in test methods to reflect the new signature outputs.

Comments suppressed due to low confidence (3)

src/libraries/System.Security.Cryptography/tests/X509Certificates/CertificateCreation/CrlBuilderTests.cs:1478

• The RSA key creation was updated to use RSA.Create() followed by ImportFromPem(TestData.RsaPkcs8Key). Please ensure that TestData.RsaPkcs8Key is accurate and maintained alongside the updated expected outputs; consider adding an inline comment explaining the rationale for this change.

RSA rsa = RSA.Create(TestData.RsaBigExponentParams);

src/libraries/System.Security.Cryptography/tests/X509Certificates/CertificateCreation/CrlBuilderTests.cs:623

• Verify that the updated expected hex string reflects the correct output produced by the new RSA key and exponent F5; double-check that these values have been regenerated consistently.

"308201CA3081B3020101300D06092A864886F70D01010B05003025312330210603550403131A427...".HexToByteArray();

src/libraries/System.Security.Cryptography/tests/X509Certificates/CertificateCreation/CrlBuilderTests.cs:1158

• Ensure that the updated expected byte arrays for the CRL output fully cover all test scenarios after switching to the static RSA key; review the generated values for consistency with security expectations.

byte[] expected = ( ... ).HexToByteArray();

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[bartonjs]

/azp run runtime-libraries-mono outerloop

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Azure Pipelines successfully started running 1 pipeline(s).

[bartonjs]

/ba-g None of the failing tests are the tests that were changed.