der: add EncodingRules enum
#1321
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Adds an enum with `Ber` and `Der` (default) variants which can be used to selectively allow a limited number of BER productions when decoding certain BER-based security-oriented formats, e.g. CMS, PKCS#8. Currently this doesn't actually do anything, however the goal is to address #779, where we can't decode CMS generated by Apple tooling. PR #810 is an example of how the rules could be relaxed to support `IndefiniteLength`s.
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Adds an enum with
BerandDer(default) variants which can be used to selectively allow a limited number of BER productions when decoding certain BER-based security-oriented formats, e.g. CMS, PKCS#8.Currently this doesn't actually do anything, however the goal is to address #779, where we can't decode CMS generated by Apple tooling.
PR #810 is an example of how the rules could be relaxed to support
IndefiniteLengths.