53 lines
2.0 KiB
Markdown
53 lines
2.0 KiB
Markdown
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# SystemX Hybrid-PQC ASN.1 Profile
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This directory keeps the experimental certificate additions separate from
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Vanetza's standard ASN.1 inputs. `hybrid-pqc.patch` contains the complete
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experimental delta. The unmodified input modules are fetched from pinned
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official ETSI Forge revisions during regeneration instead of being duplicated
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in the source tree.
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The IEEE inputs are from the official `v2025` tag of the ETSI Forge mirror:
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* repository: `https://forge.etsi.org/rep/ITS/asn1/ieee1609.2.git`
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* commit: `77e2c822a11bf8adbe9848ad3fd4f311925aff30`
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* `Ieee1609Dot2.asn` SHA-256:
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`82b5e35cbaadae1c6b2f087626b10d52afc73779c9ac6700c6445830d8824e0b`
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* `Ieee1609Dot2BaseTypes.asn` SHA-256:
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`bf2b3d66d394449319323f8a59d8084d963c3ad55d6790e1436ab897221690fe`
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The two ETSI TS 103 097 inputs are fetched from the official Release 2
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repository:
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* repository: `https://forge.etsi.org/rep/ITS/asn1/sec_ts103097.git`
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* commit: `65e6d8ea88b2bfb3aca3151dbedf07d89b97fd00`
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* `EtsiTs103097Module.asn` SHA-256:
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`245a3c10c176497f658c6a4d9ec804d3226dda2ac10a4351e382ddb5afe9ff72`
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* `EtsiTs103097ExtensionModule.asn` SHA-256:
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`b94c9b373567dd9bfb15d61c8c206d5630f6b0c481ef41ddd574c96784a9eb1a`
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The patch adds only the certificate material used by this implementation:
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* the fixed-size `FnDsa512Key` and `FnDsa512Signature` types;
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* FN-DSA-512 choices in `PublicVerificationKey` and `Signature`;
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* `altVerificationKey` and `altSignatureValue` in
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`ToBeSignedCertificate`.
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## Regeneration
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Normal builds compile the committed generated files and do not need network
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access, `asn1c`, Docker, or the patch utility. Regeneration is an explicit
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maintainer action:
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```shell
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cmake -S . -B build-asn1 \
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-DVANETZA_WITH_PQC=ON \
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-DVANETZA_ASN1_WITH_ASN1C=ON \
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-DVANETZA_ASN1_WITH_ISO=ON
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cmake --build build-asn1 --target generate_asn1c
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```
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The generation target fetches and verifies the pristine inputs in its build
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directory, applies `hybrid-pqc.patch`, invokes `asn1c`, and refreshes the
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committed output under `vanetza/asn1/systemx-pqc`.
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