diff --git a/inc/CryptX_PK_Ed25519.xs.inc b/inc/CryptX_PK_Ed25519.xs.inc
index 993c4f7..b33b1e7 100644
--- a/inc/CryptX_PK_Ed25519.xs.inc
+++ b/inc/CryptX_PK_Ed25519.xs.inc
@@ -206,25 +206,15 @@
         RETVAL
 
 SV *
-sign_hash(Crypt::PK::Ed25519 self, SV * data, const char * hash_name = "SHA1")
-    ALIAS:
-        sign_message = 1
-    CODE:
-    {
-        int rv, id;
-        unsigned char buffer[1024], tmp[MAXBLOCKSIZE], *data_ptr = NULL;
-        unsigned long tmp_len = MAXBLOCKSIZE, buffer_len = 1024;
+sign_message(Crypt::PK::Ed25519 self, SV * data)
+    CODE:
+    {
+        int rv;
+        unsigned char buffer[64], *data_ptr = NULL;
+        unsigned long buffer_len = 64;
         STRLEN data_len = 0;
 
         data_ptr = (unsigned char *)SvPVbyte(data, data_len);
-        if (ix == 1) {
-          id = _find_hash(hash_name);
-          if (id == -1) croak("FATAL: find_hash failed for '%s'", hash_name);
-          rv = hash_memory(id, data_ptr, (unsigned long)data_len, tmp, &tmp_len);
-          if (rv != CRYPT_OK) croak("FATAL: hash_memory failed: %s", error_to_string(rv));
-          data_ptr = tmp;
-          data_len = tmp_len;
-        }
         rv = ed25519_sign(data_ptr, (unsigned long)data_len, buffer, &buffer_len, &self->key);
         if (rv != CRYPT_OK) croak("FATAL: ed25519_sign failed: %s", error_to_string(rv));
         RETVAL = newSVpvn((char*)buffer, buffer_len);
@@ -233,30 +223,19 @@
         RETVAL
 
 int
-verify_hash(Crypt::PK::Ed25519 self, SV * sig, SV * data, const char * hash_name = "SHA1")
-    ALIAS:
-        verify_message = 1
-    CODE:
-    {
-        int rv, stat, id;
-        unsigned char tmp[MAXBLOCKSIZE], *data_ptr = NULL, *sig_ptr = NULL;
-        unsigned long tmp_len = MAXBLOCKSIZE;
+verify_message(Crypt::PK::Ed25519 self, SV * sig, SV * data)
+    CODE:
+    {
+        int rv, stat;
+        unsigned char *data_ptr = NULL, *sig_ptr = NULL;
         STRLEN data_len = 0, sig_len = 0;
 
         data_ptr = (unsigned char *)SvPVbyte(data, data_len);
         sig_ptr = (unsigned char *)SvPVbyte(sig, sig_len);
-        if (ix == 1) {
-          id = _find_hash(hash_name);
-          if (id == -1) croak("FATAL: find_hash failed for '%s'", hash_name);
-          rv = hash_memory(id, data_ptr, (unsigned long)data_len, tmp, &tmp_len);
-          if (rv != CRYPT_OK) croak("FATAL: hash_memory failed: %s", error_to_string(rv));
-          data_ptr = tmp;
-          data_len = tmp_len;
-        }
-        RETVAL = 1;
+        RETVAL = 0;
         stat = 0;
         rv = ed25519_verify(data_ptr, (unsigned long)data_len, sig_ptr, (unsigned long)sig_len, &stat, &self->key);
-        if (rv != CRYPT_OK || stat != 1) RETVAL = 0;
+        if (rv == CRYPT_OK && stat == 1) RETVAL = 1;
     }
     OUTPUT:
         RETVAL
diff --git a/lib/Crypt/PK/Ed25519.pm b/lib/Crypt/PK/Ed25519.pm
index 90204ab..ffe8686 100644
--- a/lib/Crypt/PK/Ed25519.pm
+++ b/lib/Crypt/PK/Ed25519.pm
@@ -327,25 +327,17 @@
 
 Export raw public/private key
 
- my $private_pem = $pk->export_key_raw('private');
- #or
- my $public_pem = $pk->export_key_raw('public');
+ my $private_bytes = $pk->export_key_raw('private');
+ #or
+ my $public_bytes = $pk->export_key_raw('public');
 
 =head2 sign_message
 
  my $signature = $priv->sign_message($message);
- #or
- my $signature = $priv->sign_message($message, $hash_name);
-
- #NOTE: $hash_name can be 'SHA1' (DEFAULT), 'SHA256' or any other hash supported by Crypt::Digest
 
 =head2 verify_message
 
  my $valid = $pub->verify_message($signature, $message)
- #or
- my $valid = $pub->verify_message($signature, $message, $hash_name);
-
- #NOTE: $hash_name can be 'SHA1' (DEFAULT), 'SHA256' or any other hash supported by Crypt::Digest
 
 =head2 is_private