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gpg: Support Kyber with Brainpool512r1.

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* common/openpgp-oid.c (oidtable): Add GCRY_KEM_RAW_BP512.
* agent/pkdecrypt.c (ecc_table): Support bp512
* g10/pkglue.c (do_encrypt_kem): Ditto.

* tests/openpgp/samplekeys: Add sample keys for kyber_bp256, bp384,
and bp512.
* tests/openpgp/privkeys: Add corresponding private keys.
* tests/openpgp/samplemsgs:  Add sample messages for those keys.
--

GnuPG-bug-id: 6815
This commit is contained in:
Werner Koch 2024-04-23 17:40:27 +02:00
parent 32ec480024
commit dd650b2c7b
No known key found for this signature in database
GPG key ID: E3FDFF218E45B72B
20 changed files with 750 additions and 4 deletions
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16
g10/pkglue.c
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@ -554,6 +554,22 @@ do_encrypt_kem (PKT_public_key *pk, gcry_mpi_t data, int seskey_algo,
ecc_ss_len = 64;
ecc_hash_algo = GCRY_MD_SHA3_512;
}
else if (ecc_algo == GCRY_KEM_RAW_BP512)
{
ecc_pubkey = gcry_mpi_get_opaque (pk->pkey[1], &nbits);
ecc_pubkey_len = (nbits+7)/8;
if (ecc_pubkey_len != 129)
{
if (opt.verbose)
log_info ("%s: ECC public key length invalid (%zu)\n",
__func__, ecc_pubkey_len);
err = gpg_error (GPG_ERR_INV_DATA);
goto leave;
}
ecc_ct_len = ecc_ecdh_len = 129;
ecc_ss_len = 64;
ecc_hash_algo = GCRY_MD_SHA3_512;
}
else
{
if (opt.verbose)