Robert Allan JamesandClaude Sonnet 5
6fd87923a5
Extends user_identity_seed_t (version 2) with fixed-size full_name/ username/email/phone fields -- plenty of unused pad space (4016 bytes) was already there. Deliberately NOT encoded into the DER cert's Subject field: that would mean building a real X.509 RDNSequence (OIDs for commonName/emailAddress, PrintableString/UTF8String tagging), well past this project's own stated "deliberately not a general ASN.1/X.509 [builder]" scope. This human-readable profile data isn't security-relevant the way pubkey/serial are (the only two fields CERTVERIFY/BINDSTEP actually check) -- it travels alongside the keypair in the plain identity record instead. capsule_mint_identity() takes full_name/username (required, validated non-empty and within their fixed field widths) and email/phone (NULL or empty = null, matching the schema's own nullable convention). The MINT FORTH word's stack signature grows to 4 string pairs ( fname-c fname-u uname-c uname-u email-c email-u phone-c phone-u -- ok? ). Verified live in QEMU: minted two real identities with real profile data -- Zuse (full_name "Konrad Suse", username "Zuse", zuse@pantheon.org) onto disk/zuse.img, and a regular user (full_name "Captain Bob", username "CaptBob", capt.bob@pantheon.org) onto disk/user1.img -- then read the raw devblock bytes back off both images directly and confirmed every field byte-exact at its correct struct offset. Clean 3-architecture regression boot confirms no side effects. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_019ZGkimpfyh63EZyRkNbkPD
72 lines
3.7 KiB
C
72 lines
3.7 KiB
C
/*
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* user_identity_seed.h -- on-disk record format for a minted user
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* identity's own keypair and profile (FABRIC-3.md §F.8/§F.20), stored in
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* the first devblock of a home-blocks drive's identity_src region
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* (homeblocks_sig_t.identity_src_offset). The devblocks that follow it
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* (identity_src_offset+1 .. identity_src_offset+identity_src_devblocks-1)
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* hold this identity's own raw FORTH personality/init source, read by
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* RUNCAP (capsule_runcap.h) at birth.
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*
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* Same raw-devblock, magic+version+fields+pad-to-4096, real-CRC-from-
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* day-one convention as zuse_cert_devblock_t (zuse_cert_devblock.h) and
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* homeblocks_sig_t -- a new, dedicated type rather than reusing
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* zuse_cert_devblock_t, per this project's "give real-shaped data its
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* own header" convention (Zuse's own record has no analogous public
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* cert field; a regular user's does, stored separately in the cert
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* region MINT also writes -- see homeblocks_sig_t.cert_offset).
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*
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* full_name/username/email/phone (added §F.20, 2026-08-28): deliberately
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* NOT encoded into the DER cert's Subject field -- that would mean
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* building a real X.509 RDNSequence (AttributeTypeAndValue, OIDs for
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* commonName/emailAddress, PrintableString/UTF8String tagging), well
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* past this project's own stated "deliberately NOT a general ASN.1/X.509
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* parser [or builder]" scope (x509_ed25519.h). This human-readable
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* profile data isn't security-relevant the way pubkey/serial are (those
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* two alone are what CERTVERIFY/BINDSTEP actually check) -- it travels
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* alongside the keypair in this plain record instead. email/phone are
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* nullable (empty string, first byte 0x00); full_name/username are not.
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*/
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#ifndef STARKERNEL_USER_IDENTITY_SEED_H
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#define STARKERNEL_USER_IDENTITY_SEED_H
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#include <stdint.h>
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#define USER_IDENTITY_SEED_MAGIC \
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((uint32_t)'U' | ((uint32_t)'I' << 8) | ((uint32_t)'D' << 16) | ((uint32_t)'S' << 24))
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#define USER_IDENTITY_SEED_VERSION 2u
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#define USER_IDENTITY_FULL_NAME_MAX 64u
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#define USER_IDENTITY_USERNAME_MAX 32u
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#define USER_IDENTITY_EMAIL_MAX 64u
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#define USER_IDENTITY_PHONE_MAX 24u
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typedef struct {
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uint32_t magic; /* USER_IDENTITY_SEED_MAGIC; anything else means
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* "not yet minted" (blank/foreign bytes), not a
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* format-corruption error. */
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uint32_t version; /* USER_IDENTITY_SEED_VERSION */
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uint8_t seed[32]; /* Ed25519 seed -- this identity's own private key.
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* Regular users are thumbdrive-resident (unlike
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* Zuse's system-resident one) -- this is the
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* only copy. */
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uint8_t pubkey[32]; /* Ed25519 public key derived from seed at mint
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* time -- same value the cert region's
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* SubjectPublicKeyInfo holds. */
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char full_name[USER_IDENTITY_FULL_NAME_MAX]; /* NUL-terminated, required. */
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char username[USER_IDENTITY_USERNAME_MAX]; /* NUL-terminated, required. */
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char email[USER_IDENTITY_EMAIL_MAX]; /* NUL-terminated; empty = null. */
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char phone[USER_IDENTITY_PHONE_MAX]; /* NUL-terminated; empty = null. */
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uint64_t crc; /* CRC-64/ISO (block_subsystem.h's compute_crc64())
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* over every byte of this struct up to (not
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* including) this field. */
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uint8_t _pad[4096 - (4 + 4 + 32 + 32 +
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USER_IDENTITY_FULL_NAME_MAX + USER_IDENTITY_USERNAME_MAX +
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USER_IDENTITY_EMAIL_MAX + USER_IDENTITY_PHONE_MAX + 8)];
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} user_identity_seed_t;
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typedef char user_identity_seed_size_check[
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(sizeof(user_identity_seed_t) == 4096) ? 1 : -1];
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#endif /* STARKERNEL_USER_IDENTITY_SEED_H */
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