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'g10/gpg2 --encrypt --debug 15 -r ecdsa -a -o _e.asc _' and 'g10/gpg2 --debug 15 _e.asc', as well as decoding of an old message posted on https://sites.google.com/site/brainhub/pgpecckeys work.

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This is the milestone 2 that brings in ECDH support from http://code.google.com/p/gnupg-ecc/source/detail?r=15 .

This corresponds to the commit 899386826c85f1e757e75bcc5d5b2159d05676a0 in libgcrypt
This commit is contained in:
Andrey Jivsov 2011-01-10 20:24:14 -08:00
parent b0c55d08a8
commit 5761a9ba74
6 changed files with 73 additions and 131 deletions
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74
g10/pkglue.c
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@ -257,80 +257,6 @@ pk_encrypt (int algo, gcry_mpi_t * resarr, gcry_mpi_t data, const byte pk_fp[MAX
return rc;
}
/****************
* Emulate our old PK interface here - sometime in the future we might
* change the internal design to directly fit to libgcrypt.
*/
int
pk_decrypt (int algo, gcry_mpi_t * result, const byte sk_fp[MAX_FINGERPRINT_LEN], gcry_mpi_t * data,
gcry_mpi_t * skey)
{
gcry_sexp_t s_skey, s_data, s_plain;
int rc;
*result = NULL;
/* make a sexp from skey */
if (algo == GCRY_PK_ELG || algo == GCRY_PK_ELG_E)
{
rc = gcry_sexp_build (&s_skey, NULL,
"(private-key(elg(p%m)(g%m)(y%m)(x%m)))",
skey[0], skey[1], skey[2], skey[3]);
}
else if (algo == GCRY_PK_RSA || algo == GCRY_PK_RSA_E)
{
rc = gcry_sexp_build (&s_skey, NULL,
"(private-key(rsa(n%m)(e%m)(d%m)(p%m)(q%m)(u%m)))",
skey[0], skey[1], skey[2], skey[3], skey[4],
skey[5]);
}
else if( algo == PUBKEY_ALGO_ECDH ) {
return pk_ecdh_decrypt( result, sk_fp, data, skey );
}
else
return GPG_ERR_PUBKEY_ALGO;
if (rc)
BUG ();
/* put data into a S-Exp s_data */
if (algo == GCRY_PK_ELG || algo == GCRY_PK_ELG_E)
{
if (!data[0] || !data[1])
rc = gpg_error (GPG_ERR_BAD_MPI);
else
rc = gcry_sexp_build (&s_data, NULL,
"(enc-val(elg(a%m)(b%m)))", data[0], data[1]);
}
else if (algo == GCRY_PK_RSA || algo == GCRY_PK_RSA_E)
{
if (!data[0])
rc = gpg_error (GPG_ERR_BAD_MPI);
else
rc = gcry_sexp_build (&s_data, NULL, "(enc-val(rsa(a%m)))", data[0]);
}
else
BUG ();
if (rc)
BUG ();
rc = gcry_pk_decrypt (&s_plain, s_data, s_skey);
gcry_sexp_release (s_skey);
gcry_sexp_release (s_data);
if (rc)
return rc;
*result = gcry_sexp_nth_mpi (s_plain, 0, 0);
gcry_sexp_release (s_plain);
if (!*result)
return -1; /* oops */
return 0;
}
/* Check whether SKEY is a suitable secret key. */
int
pk_check_secret_key (int algo, gcry_mpi_t *skey)