diff --git a/core/conversations/src/inbox/handshake.rs b/core/conversations/src/inbox/handshake.rs
index 8a93a5a..b92667d 100644
--- a/core/conversations/src/inbox/handshake.rs
+++ b/core/conversations/src/inbox/handshake.rs
@@ -97,7 +97,7 @@ mod tests {
         let bob_bundle = PrekeyBundle {
             identity_key: PublicKey::from(&bob_identity),
             signed_prekey: bob_signed_prekey_pub,
-            signature: crypto::Ed25519Signature([0u8; 64]),
+            signature: crypto::XedDsaSignature([0u8; 64]),
             onetime_prekey: None,
         };
 
diff --git a/core/conversations/src/inbox/introduction.rs b/core/conversations/src/inbox/introduction.rs
index 9f6f5c0..d326e4e 100644
--- a/core/conversations/src/inbox/introduction.rs
+++ b/core/conversations/src/inbox/introduction.rs
@@ -1,6 +1,6 @@
 use base64::{Engine, engine::general_purpose::URL_SAFE_NO_PAD};
 use chat_proto::logoschat::intro::IntroBundle;
-use crypto::{Ed25519Signature, PrivateKey, PublicKey};
+use crypto::{PrivateKey, PublicKey, XedDsaSignature};
 use prost::Message;
 use rand_core::{CryptoRng, RngCore};
 
@@ -19,7 +19,7 @@ pub(crate) fn sign_intro_binding<R: RngCore + CryptoRng>(
     secret: &PrivateKey,
     ephemeral: &PublicKey,
     rng: R,
-) -> Ed25519Signature {
+) -> XedDsaSignature {
     let message = intro_binding_message(ephemeral);
     crypto::xeddsa_sign(secret, &message, rng)
 }
@@ -27,7 +27,7 @@ pub(crate) fn sign_intro_binding<R: RngCore + CryptoRng>(
 pub(crate) fn verify_intro_binding(
     pubkey: &PublicKey,
     ephemeral: &PublicKey,
-    signature: &Ed25519Signature,
+    signature: &XedDsaSignature,
 ) -> Result<(), crypto::SignatureError> {
     let message = intro_binding_message(ephemeral);
     crypto::xeddsa_verify(pubkey, &message, signature)
@@ -37,7 +37,7 @@ pub(crate) fn verify_intro_binding(
 pub struct Introduction {
     installation_key: PublicKey,
     ephemeral_key: PublicKey,
-    signature: Ed25519Signature,
+    signature: XedDsaSignature,
 }
 
 impl Introduction {
@@ -64,7 +64,7 @@ impl Introduction {
         &self.ephemeral_key
     }
 
-    pub fn signature(&self) -> &Ed25519Signature {
+    pub fn signature(&self) -> &XedDsaSignature {
         &self.signature
     }
 }
@@ -127,7 +127,7 @@ impl TryFrom<&[u8]> for Introduction {
 
         let installation_key = PublicKey::from(installation_bytes);
         let ephemeral_key = PublicKey::from(ephemeral_bytes);
-        let signature = Ed25519Signature(signature_bytes);
+        let signature = XedDsaSignature::from(signature_bytes);
 
         verify_intro_binding(&installation_key, &ephemeral_key, &signature)
             .map_err(|_| ChatError::BadBundleValue("invalid signature".into()))?;
diff --git a/core/crypto/src/lib.rs b/core/crypto/src/lib.rs
index 1759091..e1d71c6 100644
--- a/core/crypto/src/lib.rs
+++ b/core/crypto/src/lib.rs
@@ -6,6 +6,6 @@ mod xeddsa_sign;
 
 pub use identity::Identity;
 pub use keys::{PrivateKey, PublicKey, SymmetricKey32};
-pub use signatures::{Ed25519SigningKey, Ed25519VerifyingKey};
+pub use signatures::{Ed25519Signature, Ed25519SigningKey, Ed25519VerifyingKey};
 pub use x3dh::{DomainSeparator, PrekeyBundle, X3Handshake};
-pub use xeddsa_sign::{Ed25519Signature, SignatureError, xeddsa_sign, xeddsa_verify};
+pub use xeddsa_sign::{SignatureError, XedDsaSignature, xeddsa_sign, xeddsa_verify};
diff --git a/core/crypto/src/x3dh.rs b/core/crypto/src/x3dh.rs
index b5a9a73..7e921b7 100644
--- a/core/crypto/src/x3dh.rs
+++ b/core/crypto/src/x3dh.rs
@@ -5,14 +5,14 @@ use rand_core::{CryptoRng, RngCore};
 use sha2::Sha256;
 
 use crate::keys::{PrivateKey, PublicKey, SymmetricKey32};
-use crate::xeddsa_sign::Ed25519Signature;
+use crate::xeddsa_sign::XedDsaSignature;
 
 /// A prekey bundle containing the public keys needed to initiate an X3DH key exchange.
 #[derive(Clone, Debug)]
 pub struct PrekeyBundle {
     pub identity_key: PublicKey,
     pub signed_prekey: PublicKey,
-    pub signature: Ed25519Signature,
+    pub signature: XedDsaSignature,
     pub onetime_prekey: Option<PublicKey>,
 }
 
@@ -151,7 +151,7 @@ mod tests {
         let bob_bundle = PrekeyBundle {
             identity_key: bob_identity_pub,
             signed_prekey: bob_signed_prekey_pub,
-            signature: Ed25519Signature::empty(),
+            signature: XedDsaSignature::empty(),
             onetime_prekey: Some(bob_onetime_prekey_pub),
         };
 
@@ -191,7 +191,7 @@ mod tests {
         let bob_bundle = PrekeyBundle {
             identity_key: bob_identity_pub,
             signed_prekey: bob_signed_prekey_pub,
-            signature: Ed25519Signature::empty(),
+            signature: XedDsaSignature::empty(),
             onetime_prekey: None,
         };
 
diff --git a/core/crypto/src/xeddsa_sign.rs b/core/crypto/src/xeddsa_sign.rs
index 20dd3c0..e027131 100644
--- a/core/crypto/src/xeddsa_sign.rs
+++ b/core/crypto/src/xeddsa_sign.rs
@@ -9,21 +9,21 @@ use xeddsa::{Sign, Verify, xed25519};
 use crate::{PrivateKey, PublicKey};
 /// A 64-byte XEdDSA signature over an Ed25519-compatible curve.
 #[derive(Clone, Copy, Debug, PartialEq, Eq)]
-pub struct Ed25519Signature(pub [u8; 64]);
+pub struct XedDsaSignature(pub [u8; 64]);
 
-impl Ed25519Signature {
+impl XedDsaSignature {
     pub fn empty() -> Self {
         Self([0u8; 64])
     }
 }
 
-impl AsRef<[u8; 64]> for Ed25519Signature {
+impl AsRef<[u8; 64]> for XedDsaSignature {
     fn as_ref(&self) -> &[u8; 64] {
         &self.0
     }
 }
 
-impl From<[u8; 64]> for Ed25519Signature {
+impl From<[u8; 64]> for XedDsaSignature {
     fn from(bytes: [u8; 64]) -> Self {
         Self(bytes)
     }
@@ -47,9 +47,9 @@ pub fn xeddsa_sign<R: RngCore + CryptoRng>(
     secret: &PrivateKey,
     message: &[u8],
     mut rng: R,
-) -> Ed25519Signature {
+) -> XedDsaSignature {
     let signing_key = xed25519::PrivateKey::from(secret);
-    Ed25519Signature(signing_key.sign(message, &mut rng))
+    XedDsaSignature(signing_key.sign(message, &mut rng))
 }
 
 /// Verify an XEdDSA signature using an X25519 public key.
@@ -64,7 +64,7 @@ pub fn xeddsa_sign<R: RngCore + CryptoRng>(
 pub fn xeddsa_verify(
     pubkey: &PublicKey,
     message: &[u8],
-    signature: &Ed25519Signature,
+    signature: &XedDsaSignature,
 ) -> Result<(), SignatureError> {
     let verify_key = xed25519::PublicKey::from(pubkey);
     verify_key