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tools: Fix gpg-pair-tool to follow new API.

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Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
This commit is contained in:
NIIBE Yutaka 2019-06-21 12:05:27 +09:00
parent b928de70e0
commit 7c81e5cb97
1 changed files with 6 additions and 15 deletions
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19
tools/gpg-pair-tool.c
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@ -1028,6 +1028,9 @@ create_dh_keypair (unsigned char *dh_secret, size_t dh_secret_len,
if (dh_public_len < 32 || dh_secret_len < 32)
return gpg_error (GPG_ERR_BUFFER_TOO_SHORT);
if (gcry_ecc_get_algo_keylen (GCRY_ECC_CURVE25519) > dh_public_len)
return gpg_error (GPG_ERR_BUFFER_TOO_SHORT);
p = gcry_random_bytes (32, GCRY_VERY_STRONG_RANDOM);
if (!p)
return gpg_error_from_syserror ();
@ -1035,13 +1038,10 @@ create_dh_keypair (unsigned char *dh_secret, size_t dh_secret_len,
memcpy (dh_secret, p, 32);
xfree (p);
err = gcry_ecc_mul_point (GCRY_ECC_CURVE25519, &p, dh_secret, NULL);
err = gcry_ecc_mul_point (GCRY_ECC_CURVE25519, dh_public, dh_secret, NULL);
if (err)
return err;
memcpy (dh_public, p, 32);
xfree (p);
if (DBG_CRYPTO)
{
log_printhex (dh_secret, 32, "DH secret:");
@ -1170,23 +1170,14 @@ compute_master_secret (unsigned char *master, size_t masterlen,
const unsigned char *pk_b, size_t pk_b_len)
{
gpg_error_t err;
unsigned char *s;
log_assert (masterlen == 32);
log_assert (sk_a_len == 32);
log_assert (pk_b_len == 32);
err = gcry_ecc_mul_point (GCRY_ECC_CURVE25519, &s, sk_a, pk_b);
err = gcry_ecc_mul_point (GCRY_ECC_CURVE25519, master, sk_a, pk_b);
if (err)
{
log_error ("error computing DH: %s\n", gpg_strerror (err));
goto leave;
}
memcpy (master, s, 32);
leave:
xfree (s);
return err;
}