29 lines
997 B
Plaintext
29 lines
997 B
Plaintext
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Reference notes
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===============
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Pinned upstream commit:
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e3bb3b82480d6df4237e2a8c35ea0dd7eade25b4
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The upstream commit's root generator:
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1. constructs a ToBeSignedCertificate;
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2. serializes it using rasn::oer::encode();
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3. calls PrivateKey::sign(hash_alg, &tbs_bytes, None);
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4. inserts the returned IEEE 1609.2 Signature into an ExplicitCertificate.
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The pinned c-its PrivateKey::sign() implementation for SHA-256 computes:
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SHA256(
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SHA256(tbs_bytes)
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SHA256(signer_info)
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)
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For a self-signed root, signer_info is the empty byte string because the root
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generator passes None.
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This bundle uses that exact upstream code for the cryptographic operation.
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`rebuild_registered_rca.py` keeps the registered TBS/public key unchanged and uses
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the registered encrypted key. `create_new_root.py` creates a new encrypted key and
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replaces the template public key for a separate, unregistered candidate root. In
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both cases the scalar reaches Rust only through standard input.
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