[enh] Add ED25519 public key support

coin/members/models.py

@@ -373,7 +373,7 @@ def get_automatic_username(member):
 
 class CryptoKey(CoinLdapSyncMixin, models.Model):
 
-    KEY_TYPE_CHOICES = (('RSA', 'RSA'), ('GPG', 'GPG'))
+    KEY_TYPE_CHOICES = (('ED25519', 'ED25519'), ('RSA', 'RSA'), ('GPG', 'GPG'))
 
     type = models.CharField(max_length=3, choices=KEY_TYPE_CHOICES,
                             verbose_name='type')