fix: use Buffer.from(Uint8Array.buffer))

ChainSafe · May 17, 2024 · ac22e53 · ac22e53
1 parent 900f52c
commit ac22e53
Showing 1 changed file with 8 additions and 6 deletions.
diff --git a/packages/beacon-node/src/util/sszBytes.ts b/packages/beacon-node/src/util/sszBytes.ts
@@ -89,7 +89,9 @@ export function getSeenAttDataKeyElectra(electraAttestationBytes: Uint8Array): A
     return null;
   }
 
-  return Buffer.from(electraAttestationBytes.subarray(startIndex, startIndex + seenKeyLength)).toString("base64");
+  return Buffer.from(electraAttestationBytes.subarray(startIndex, startIndex + seenKeyLength).buffer).toString(
+    "base64"
+  );
 }
 
 /**
@@ -102,9 +104,9 @@ export function getSeenAttDataKeyPhase0(data: Uint8Array): AttDataBase64 | null
   }
 
   // base64 is a bit efficient than hex
-  return Buffer.from(data.subarray(VARIABLE_FIELD_OFFSET, VARIABLE_FIELD_OFFSET + ATTESTATION_DATA_SIZE)).toString(
-    "base64"
-  );
+  return Buffer.from(
+    data.subarray(VARIABLE_FIELD_OFFSET, VARIABLE_FIELD_OFFSET + ATTESTATION_DATA_SIZE).buffer
+  ).toString("base64");
 }
 
 /**
@@ -229,7 +231,7 @@ export function getSeenAttDataKeyFromSignedAggregateAndProofElectra(data: Uint8A
   }
 
   // base64 is a bit efficient than hex
-  return Buffer.from(data.subarray(startIndex, endIndex)).toString("base64");
+  return Buffer.from(data.subarray(startIndex, endIndex).buffer).toString("base64");
 }
 
 /**
@@ -246,7 +248,7 @@ export function getSeenAttDataKeyFromSignedAggregateAndProofPhase0(data: Uint8Ar
     data.subarray(
       SIGNED_AGGREGATE_AND_PROOF_SLOT_OFFSET,
       SIGNED_AGGREGATE_AND_PROOF_SLOT_OFFSET + ATTESTATION_DATA_SIZE
-    )
+    ).buffer
   ).toString("base64");
 }