diff options
| -rw-r--r-- | g10/keygen.c | 25 |
1 files changed, 18 insertions, 7 deletions
diff --git a/g10/keygen.c b/g10/keygen.c index ed57d5d15..c68f1f0b5 100644 --- a/g10/keygen.c +++ b/g10/keygen.c @@ -2356,14 +2356,25 @@ ask_curve (int *algo, int *subkey_algo, const char *current) else { /* If the user selected a signing algorithm and Curve25519 - we need to set the algo to EdDSA and update the curve name. */ - if ((*algo == PUBKEY_ALGO_ECDSA || *algo == PUBKEY_ALGO_EDDSA) - && curves[idx].eddsa_curve) + we need to set the algo to EdDSA and update the curve name. + If switching away from EdDSA, we need to set the algo back + to ECDSA. */ + if (*algo == PUBKEY_ALGO_ECDSA || *algo == PUBKEY_ALGO_EDDSA) { - if (subkey_algo && *subkey_algo == PUBKEY_ALGO_ECDSA) - *subkey_algo = PUBKEY_ALGO_EDDSA; - *algo = PUBKEY_ALGO_EDDSA; - result = curves[idx].eddsa_curve; + if (curves[idx].eddsa_curve) + { + if (subkey_algo && *subkey_algo == PUBKEY_ALGO_ECDSA) + *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 result = curves[idx].name; |