Recognize the legacy OID 1.3.14.3.2.29 (sha1WithRSASignature) as equivalent to sha1WithRSAEncryption.

sha1WithRSASignature is a deprecated equivalent of
sha1WithRSAEncryption. It originates from the NIST Open
Systems Environment (OSE) Implementor's Workshop (OIW).

It is supported for compatibility with Microsoft's certificate APIs
and tools, particularly makecert.exe, which default(ed/s) to this
OID for SHA-1. See also
https://bugzilla.mozilla.org/show_bug.cgi?id=1042479

BUG=410574

Review URL: https://codereview.chromium.org/1223763002

Cr-Commit-Position: refs/heads/master@{#339148}
2 files changed