security-and-privacy/gnupg
security-and-privacy/gnupg
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Integrating http://code.google.com/p/gnupg-ecc/source/detail?r=15 .

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The following works:
   gpg2 --gen-key (ECC)
   gpg2 --list-keys
   gpg2 --list-packets ~/.gnupg/pubring.gpg
   gpg2 --list-packets <private key from http://sites.google.com/site/brainhub/pgpecckeys>

ECDH doesn't work yet as the code must be re-written to adjust for gpg-agent refactoring.
This commit is contained in:
Andrey Jivsov 2011-01-05 17:33:17 -08:00
parent 7bbc07fde0
commit e0972d3d96
34 changed files with 1497 additions and 176 deletions
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46
g10/build-packet.c
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@ -178,6 +178,16 @@ mpi_write (iobuf_t out, gcry_mpi_t a)
return rc;
}
/*
* Write the name OID, encoded as an mpi, to OUT. The format of the content of the MPI is
* one byte LEN, following by LEN bytes that are DER representation of an ASN.1 OID.
* This is true for each of the 3 following functions.
*/
#define iobuf_name_oid_write iobuf_write_size_body_mpi
/* Write the value of KEK fields for ECDH. */
#define ecdh_kek_params_write iobuf_write_size_body_mpi
/* Write the value of encrypted filed for ECDH. */
#define ecdh_esk_write iobuf_write_size_body_mpi
/****************
@ -290,10 +300,24 @@ do_key (iobuf_t out, int ctb, PKT_public_key *pk)
}
assert (npkey < nskey);
/* Writing the public parameters is easy. */
for (i=0; i < npkey; i++ )
if ((err = mpi_write (a, pk->pkey[i])))
goto leave;
if( pk->pubkey_algo != PUBKEY_ALGO_ECDSA && pk->pubkey_algo != PUBKEY_ALGO_ECDH ) {
/* Writing the public parameters is easy, */
for (i=0; i < npkey; i++ )
if ((err = mpi_write (a, pk->pkey[i])))
goto leave;
}
else {
/* ... except we do an adjustment for ECC OID and possibly KEK params for ECDH */
if( (err=iobuf_name_oid_write(a, pk->pkey[0])) || /* DER of OID with preceeding length byte */
(err = mpi_write (a, pk->pkey[1])) ) /* point Q, the public key */
{
goto leave;
}
if( pk->pubkey_algo == PUBKEY_ALGO_ECDH && (err=ecdh_kek_params_write(a,pk->pkey[2]))) { /* one more public field for ECDH */
goto leave;
}
/* followed by possibly protected private scalar */
}
if (pk->seckey_info)
{
@ -458,8 +482,18 @@ do_pubkey_enc( IOBUF out, int ctb, PKT_pubkey_enc *enc )
n = pubkey_get_nenc( enc->pubkey_algo );
if ( !n )
write_fake_data( a, enc->data[0] );
for (i=0; i < n && !rc ; i++ )
rc = mpi_write(a, enc->data[i] );
if( enc->pubkey_algo != PUBKEY_ALGO_ECDH ) {
for (i=0; i < n && !rc ; i++ )
rc = mpi_write(a, enc->data[i] );
}
else {
/* the second field persists as a LEN+field structure, even though it is
* stored for uniformity as an MPI internally */
assert( n==2 );
rc = mpi_write(a, enc->data[0] );
if( !rc ) rc = ecdh_esk_write(a, enc->data[1] );
}
if (!rc)
{