letsencrypt / letsencrypt/boulder

genmtpki: use RELATIVE-OID encoding

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#9,021 0 comments 0 reactions 1 assignee View on GitHub

@jsha is already working on this.

Since Sep 11, 2026.

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Description

Draft 06 of merkle-tree-certs will change the encoding of issuer IDs to use a relative OID instead of the UTF8String we already use. Update genmtpki to do this.

Note that relative OIDs (class universal, tag number 36) are not currently implemented in encoding/asn1 or cryptobyte, so we'll have to do a little encoding ourselves.

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