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gpg: Don't use EdDSA algo ID for ECDSA curves.

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* g10/keygen.c (ask_curve): Change algo ID to ECDSA if it changed from
an EdDSA curve.

--

(cherry picked from commit 4324560b2c0bb76a1769535c383424a042e505ae)

This change matters when it is called from ask_card_keyattr.

Some-comments-by: NIIBE Yutaka <gniibe@fsij.org>
This commit is contained in:
Trevor Bentley 2019-03-25 15:19:47 +01:00 committed by NIIBE Yutaka
parent 644cabc6b3
commit 2f455d18ab
1 changed files with 18 additions and 7 deletions
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25
g10/keygen.c
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@ -2356,14 +2356,25 @@ ask_curve (int *algo, int *subkey_algo, const char *current)
else else
{ {
/* If the user selected a signing algorithm and Curve25519 /* If the user selected a signing algorithm and Curve25519
we need to set the algo to EdDSA and update the curve name. */ we need to set the algo to EdDSA and update the curve name.
if ((*algo == PUBKEY_ALGO_ECDSA || *algo == PUBKEY_ALGO_EDDSA) If switching away from EdDSA, we need to set the algo back
&& curves[idx].eddsa_curve) to ECDSA. */
if (*algo == PUBKEY_ALGO_ECDSA || *algo == PUBKEY_ALGO_EDDSA)
{ {
if (subkey_algo && *subkey_algo == PUBKEY_ALGO_ECDSA) if (curves[idx].eddsa_curve)
*subkey_algo = PUBKEY_ALGO_EDDSA; {
*algo = PUBKEY_ALGO_EDDSA; if (subkey_algo && *subkey_algo == PUBKEY_ALGO_ECDSA)
result = curves[idx].eddsa_curve; *subkey_algo = PUBKEY_ALGO_EDDSA;
*algo = PUBKEY_ALGO_EDDSA;
result = curves[idx].eddsa_curve;
}
else
{
if (subkey_algo && *subkey_algo == PUBKEY_ALGO_EDDSA)
*subkey_algo = PUBKEY_ALGO_ECDSA;
*algo = PUBKEY_ALGO_ECDSA;
result = curves[idx].name;
}
} }
else else
result = curves[idx].name; result = curves[idx].name;