diff --git a/WebCryptoAPI/derive_bits_keys/cfrg_curves_bits.js b/WebCryptoAPI/derive_bits_keys/cfrg_curves_bits.js
index ef6905e574c158..422a230bd16675 100644
--- a/WebCryptoAPI/derive_bits_keys/cfrg_curves_bits.js
+++ b/WebCryptoAPI/derive_bits_keys/cfrg_curves_bits.js
@@ -6,8 +6,6 @@ function define_tests() {
   // Verify the derive functions perform checks against the all-zero value results,
   // ensuring small-order points are rejected.
   // https://www.rfc-editor.org/rfc/rfc7748#section-6.1
-  // TODO: The spec states that the check must be done on use, but there is discussion about doing it on import.
-  // https://github.com/WICG/webcrypto-secure-curves/pull/13
   Object.keys(kSmallOrderPoint).forEach(function(algorithmName) {
       kSmallOrderPoint[algorithmName].forEach(function(test) {
           promise_test(async() => {
@@ -23,8 +21,8 @@ function define_tests() {
                                                  false, [])
                   derived = await subtle.deriveBits({name: algorithmName, public: publicKey}, privateKey, 8 * sizes[algorithmName]);
               } catch (err) {
-                  assert_false(privateKey === undefined, "Private key should be valid.");
-                  assert_false(publicKey === undefined, "Public key should be valid.");
+                  assert_true(privateKey !== undefined, "Private key should be valid.");
+                  assert_true(publicKey !== undefined, "Public key should be valid.");
                   assert_equals(err.name, "OperationError", "Should throw correct error, not " + err.name + ": " + err.message + ".");
               }
               assert_equals(derived, undefined, "Operation succeeded, but should not have.");
diff --git a/WebCryptoAPI/sign_verify/eddsa.js b/WebCryptoAPI/sign_verify/eddsa.js
index d77a8808831176..7817b78cff6293 100644
--- a/WebCryptoAPI/sign_verify/eddsa.js
+++ b/WebCryptoAPI/sign_verify/eddsa.js
@@ -366,6 +366,28 @@ function run_test() {
       }, "Sign and verify using generated " + vector.algorithmName + " keys.");
   });
 
+  // When verifying an Ed25519 or Ed448 signature, if the public key or the first half of the signature (R) is
+  // an invalid or small-order element, return false.
+  Object.keys(kSmallOrderTestCases).forEach(function (algorithmName) {
+      var algorithm = {name: algorithmName};
+      kSmallOrderTestCases[algorithmName].forEach(function(test) {
+          // Test low-order public keys
+          promise_test(async() => {
+              let isVerified = true;
+              let publicKey;
+              try {
+                  publicKey = await subtle.importKey("raw", test.keyData,
+                                                 algorithm,
+                                                 false, ["verify"])
+                  isVerified = await subtle.verify(algorithmName, publicKey, test.signature, test.message);
+              } catch (err) {
+                  assert_equals(isVerified, test.verified, "Signature verification result.");
+                  assert_unreached("The operation shouldn't fail, but it thown this error: " + err.name + ": " + err.message + ".");
+              }
+              assert_false(isVerified, "Signature verification result.");
+          }, algorithmName + " Verification checks with small-order key of order - Test " + test.id);
+      });
+  });
 
   // A test vector has all needed fields for signing and verifying, EXCEPT that the
   // key field may be null. This function replaces that null with the Correct
diff --git a/WebCryptoAPI/sign_verify/eddsa_vectors.js b/WebCryptoAPI/sign_verify/eddsa_vectors.js
index 96ec2b01af96f2..ce80e0ea7e2626 100644
--- a/WebCryptoAPI/sign_verify/eddsa_vectors.js
+++ b/WebCryptoAPI/sign_verify/eddsa_vectors.js
@@ -53,6 +53,145 @@ function getTestVectors() {
 
     vectors.push(vector);
   });
-
   return vectors;
 }
+
+// https://eprint.iacr.org/2020/1244.pdf#table.caption.3
+var kSmallOrderPoints = [
+    // Canonical serializations
+    [0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00], // #0 - Order 1
+    [0xEC, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x7F], // #1 - Order 2
+    [0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80], // #2 - Order 4
+    [0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00], // #3 - Order 4
+    [0xC7, 0x17, 0x6A, 0x70, 0x3D, 0x4D, 0xD8, 0x4F, 0xBA, 0x3C, 0x0B, 0x76, 0x0D, 0x10, 0x67, 0x0F, 0x2A, 0x20, 0x53, 0xFA, 0x2C, 0x39, 0xCC, 0xC6, 0x4E, 0xC7, 0xFD, 0x77, 0x92, 0xAC, 0x03, 0x7A], // #4 - Order 8
+    [0xC7, 0x17, 0x6A, 0x70, 0x3D, 0x4D, 0xD8, 0x4F, 0xBA, 0x3C, 0x0B, 0x76, 0x0D, 0x10, 0x67, 0x0F, 0x2A, 0x20, 0x53, 0xFA, 0x2C, 0x39, 0xCC, 0xC6, 0x4E, 0xC7, 0xFD, 0x77, 0x92, 0xAC, 0x03, 0xFA], // #5 - Order 8
+    [0x26, 0xE8, 0x95, 0x8F, 0xC2, 0xB2, 0x27, 0xB0, 0x45, 0xC3, 0xF4, 0x89, 0xF2, 0xEF, 0x98, 0xF0, 0xD5, 0xDF, 0xAC, 0x05, 0xD3, 0xC6, 0x33, 0x39, 0xB1, 0x38, 0x02, 0x88, 0x6D, 0x53, 0xFC, 0x05], // #6 - Order 8
+    [0x26, 0xE8, 0x95, 0x8F, 0xC2, 0xB2, 0x27, 0xB0, 0x45, 0xC3, 0xF4, 0x89, 0xF2, 0xEF, 0x98, 0xF0, 0xD5, 0xDF, 0xAC, 0x05, 0xD3, 0xC6, 0x33, 0x39, 0xB1, 0x38, 0x02, 0x88, 0x6D, 0x53, 0xFC, 0x85], // #7 - Order 8
+
+    // Non-canonical serializatons
+    [0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80], // #8  - Order 1
+    [0xEC, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF], // #9  - Order 2
+    [0xEE, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x7F], // #10 - Order 1
+    [0xEE, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF], // #11 - Order 1
+    [0xED, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF], // #12 - Order 4
+    [0xED, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x7F], // #13 - Order 4
+];
+
+
+var pubKeys = [
+    [0xc7, 0x17, 0x6a, 0x70, 0x3d, 0x4d, 0xd8, 0x4f, 0xba, 0x3c, 0x0b, 0x76, 0x0d, 0x10, 0x67, 0x0f, 0x2a, 0x20, 0x53, 0xfa, 0x2c, 0x39, 0xcc, 0xc6, 0x4e, 0xc7, 0xfd, 0x77, 0x92, 0xac, 0x03, 0xfa], // kSmallOrderPoints #5
+    [0xf7, 0xba, 0xde, 0xc5, 0xb8, 0xab, 0xea, 0xf6, 0x99, 0x58, 0x39, 0x92, 0x21, 0x9b, 0x7b, 0x22, 0x3f, 0x1d, 0xf3, 0xfb, 0xbe, 0xa9, 0x19, 0x84, 0x4e, 0x3f, 0x7c, 0x55, 0x4a, 0x43, 0xdd, 0x43], // highest 32 bytes of case "1" signature
+    [0xcd, 0xb2, 0x67, 0xce, 0x40, 0xc5, 0xcd, 0x45, 0x30, 0x6f, 0xa5, 0xd2, 0xf2, 0x97, 0x31, 0x45, 0x93, 0x87, 0xdb, 0xf9, 0xeb, 0x93, 0x3b, 0x7b, 0xd5, 0xae, 0xd9, 0xa7, 0x65, 0xb8, 0x8d, 0x4d],
+    [0x44, 0x2a, 0xad, 0x9f, 0x08, 0x9a, 0xd9, 0xe1, 0x46, 0x47, 0xb1, 0xef, 0x90, 0x99, 0xa1, 0xff, 0x47, 0x98, 0xd7, 0x85, 0x89, 0xe6, 0x6f, 0x28, 0xec, 0xa6, 0x9c, 0x11, 0xf5, 0x82, 0xa6, 0x23],
+    [0xec, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff], // kSmallOrderPoints #9
+    [0xEC, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x7F], // kSmallOrderPoints #1
+]
+
+// https://eprint.iacr.org/2020/1244.pdf
+// signature = (R, S); public key A, h = SHA512(R||A||M )
+// 8(SB) = 8R + 8(hA) => (1)
+// SB = R + hA => (2)
+var kSmallOrderTestCases = {
+    "Ed25519": [
+        {
+            id: "0", // S = 0 | A's order = small | R's order = small | (1) = pass | (2) = pass
+            message : Uint8Array.from([0x8c, 0x93, 0x25, 0x5d, 0x71, 0xdc, 0xab, 0x10, 0xe8, 0xf3, 0x79, 0xc2, 0x62, 0x00, 0xf3, 0xc7, 0xbd, 0x5f, 0x09, 0xd9, 0xbc, 0x30, 0x68, 0xd3, 0xef, 0x4e, 0xde, 0xb4, 0x85, 0x30, 0x22, 0xb6]),
+            keyData : Uint8Array.from(pubKeys[0]),
+            signature : Uint8Array.from([0xc7, 0x17, 0x6a, 0x70, 0x3d, 0x4d, 0xd8, 0x4f, 0xba, 0x3c, 0x0b, 0x76, 0x0d, 0x10, 0x67, 0x0f, 0x2a, 0x20, 0x53, 0xfa, 0x2c, 0x39, 0xcc, 0xc6, 0x4e, 0xc7, 0xfd, 0x77, 0x92, 0xac, 0x03, 0x7a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00]),
+            verified: false,  // small-order signature's R fail in the verification.
+        },
+        {
+            id: "1", // 0 < S < L | A's order = small | R's order = mixed | (1) = pass | (2) = pass
+            message : Uint8Array.from([0x9b, 0xd9, 0xf4, 0x4f, 0x4d, 0xcc, 0x75, 0xbd, 0x53, 0x1b, 0x56, 0xb2, 0xcd, 0x28, 0x0b, 0x0b, 0xb3, 0x8f, 0xc1, 0xcd, 0x6d, 0x12, 0x30, 0xe1, 0x48, 0x61, 0xd8, 0x61, 0xde, 0x09, 0x2e, 0x79]),
+            keyData : Uint8Array.from(pubKeys[0]),
+            signature : Uint8Array.from([0xf7, 0xba, 0xde, 0xc5, 0xb8, 0xab, 0xea, 0xf6, 0x99, 0x58, 0x39, 0x92, 0x21, 0x9b, 0x7b, 0x22, 0x3f, 0x1d, 0xf3, 0xfb, 0xbe, 0xa9, 0x19, 0x84, 0x4e, 0x3f, 0x7c, 0x55, 0x4a, 0x43, 0xdd, 0x43, 0xa5, 0xbb, 0x70, 0x47, 0x86, 0xbe, 0x79, 0xfc, 0x47, 0x6f, 0x91, 0xd3, 0xf3, 0xf8, 0x9b, 0x03, 0x98, 0x4d, 0x80, 0x68, 0xdc, 0xf1, 0xbb, 0x7d, 0xfc, 0x66, 0x37, 0xb4, 0x54, 0x50, 0xac, 0x04]),
+            verified: false, // small-order key's data fail in the verification.
+        },
+        {
+            id: "2", // 0 < S < L | A's order = mixed | R's order = small | (1) = pass | (2) = pass
+            message : Uint8Array.from([0xae, 0xbf, 0x3f, 0x26, 0x01, 0xa0, 0xc8, 0xc5, 0xd3, 0x9c, 0xc7, 0xd8, 0x91, 0x16, 0x42, 0xf7, 0x40, 0xb7, 0x81, 0x68, 0x21, 0x8d, 0xa8, 0x47, 0x17, 0x72, 0xb3, 0x5f, 0x9d, 0x35, 0xb9, 0xab]),
+            keyData : Uint8Array.from(pubKeys[1]),
+            signature : Uint8Array.from([0xc7, 0x17, 0x6a, 0x70, 0x3d, 0x4d, 0xd8, 0x4f, 0xba, 0x3c, 0x0b, 0x76, 0x0d, 0x10, 0x67, 0x0f, 0x2a, 0x20, 0x53, 0xfa, 0x2c, 0x39, 0xcc, 0xc6, 0x4e, 0xc7, 0xfd, 0x77, 0x92, 0xac, 0x03, 0xfa, 0x8c, 0x4b, 0xd4, 0x5a, 0xec, 0xac, 0xa5, 0xb2, 0x4f, 0xb9, 0x7b, 0xc1, 0x0a, 0xc2, 0x7a, 0xc8, 0x75, 0x1a, 0x7d, 0xfe, 0x1b, 0xaf, 0xf8, 0xb9, 0x53, 0xec, 0x9f, 0x58, 0x33, 0xca, 0x26, 0x0e]),
+            verified: false,  // small-order signature's R fail in the verification.
+        },
+        {
+            id: "3", // 0 < S < L | A's order = mixed | R's order = mixed | (1) = pass | (2) = pass
+            message : Uint8Array.from([0x9b, 0xd9, 0xf4, 0x4f, 0x4d, 0xcc, 0x75, 0xbd, 0x53, 0x1b, 0x56, 0xb2, 0xcd, 0x28, 0x0b, 0x0b, 0xb3, 0x8f, 0xc1, 0xcd, 0x6d, 0x12, 0x30, 0xe1, 0x48, 0x61, 0xd8, 0x61, 0xde, 0x09, 0x2e, 0x79]),
+            keyData : Uint8Array.from(pubKeys[2]),
+            signature : Uint8Array.from([0x90, 0x46, 0xa6, 0x47, 0x50, 0x44, 0x49, 0x38, 0xde, 0x19, 0xf2, 0x27, 0xbb, 0x80, 0x48, 0x5e, 0x92, 0xb8, 0x3f, 0xdb, 0x4b, 0x65, 0x06, 0xc1, 0x60, 0x48, 0x4c, 0x01, 0x6c, 0xc1, 0x85, 0x2f, 0x87, 0x90, 0x9e, 0x14, 0x42, 0x8a, 0x7a, 0x1d, 0x62, 0xe9, 0xf2, 0x2f, 0x3d, 0x3a, 0xd7, 0x80, 0x2d, 0xb0, 0x2e, 0xb2, 0xe6, 0x88, 0xb6, 0xc5, 0x2f, 0xcd, 0x66, 0x48, 0xa9, 0x8b, 0xd0, 0x09]),
+            verified: true, // mixed-order points are not checked.
+        },
+        {
+            id: "4", // 0 < S < L | A's order = mixed | R's order = mixed | (1) = pass | (2) = fail
+            message : Uint8Array.from([0xe4, 0x7d, 0x62, 0xc6, 0x3f, 0x83, 0x0d, 0xc7, 0xa6, 0x85, 0x1a, 0x0b, 0x1f, 0x33, 0xae, 0x4b, 0xb2, 0xf5, 0x07, 0xfb, 0x6c, 0xff, 0xec, 0x40, 0x11, 0xea, 0xcc, 0xd5, 0x5b, 0x53, 0xf5, 0x6c]),
+            keyData : Uint8Array.from(pubKeys[2]),
+            signature : Uint8Array.from([0x16, 0x0a, 0x1c, 0xb0, 0xdc, 0x9c, 0x02, 0x58, 0xcd, 0x0a, 0x7d, 0x23, 0xe9, 0x4d, 0x8f, 0xa8, 0x78, 0xbc, 0xb1, 0x92, 0x5f, 0x2c, 0x64, 0x24, 0x6b, 0x2d, 0xee, 0x17, 0x96, 0xbe, 0xd5, 0x12, 0x5e, 0xc6, 0xbc, 0x98, 0x2a, 0x26, 0x9b, 0x72, 0x3e, 0x06, 0x68, 0xe5, 0x40, 0x91, 0x1a, 0x9a, 0x6a, 0x58, 0x92, 0x1d, 0x69, 0x25, 0xe4, 0x34, 0xab, 0x10, 0xaa, 0x79, 0x40, 0x55, 0x1a, 0x09]),
+            verified: false, // expect a cofactorless verification algorithm.
+        },
+        {
+            id: "5", // 0 < S < L | A's order = mixed | R's order = L | (1) = pass | (2) = fail
+            message : Uint8Array.from([0xe4, 0x7d, 0x62, 0xc6, 0x3f, 0x83, 0x0d, 0xc7, 0xa6, 0x85, 0x1a, 0x0b, 0x1f, 0x33, 0xae, 0x4b, 0xb2, 0xf5, 0x07, 0xfb, 0x6c, 0xff, 0xec, 0x40, 0x11, 0xea, 0xcc, 0xd5, 0x5b, 0x53, 0xf5, 0x6c]),
+            keyData : Uint8Array.from(pubKeys[2]),
+            signature : Uint8Array.from([0x21, 0x12, 0x2a, 0x84, 0xe0, 0xb5, 0xfc, 0xa4, 0x05, 0x2f, 0x5b, 0x12, 0x35, 0xc8, 0x0a, 0x53, 0x78, 0x78, 0xb3, 0x8f, 0x31, 0x42, 0x35, 0x6b, 0x2c, 0x23, 0x84, 0xeb, 0xad, 0x46, 0x68, 0xb7, 0xe4, 0x0b, 0xc8, 0x36, 0xda, 0xc0, 0xf7, 0x10, 0x76, 0xf9, 0xab, 0xe3, 0xa5, 0x3f, 0x9c, 0x03, 0xc1, 0xce, 0xee, 0xdd, 0xb6, 0x58, 0xd0, 0x03, 0x04, 0x94, 0xac, 0xe5, 0x86, 0x68, 0x74, 0x05]),
+            verified: false, // expect a cofactorless verification algorithm.
+        },
+        {
+            id: "6", // S > L | A's order = L | R's order = L | (1) = pass | (2) = pass
+            message : Uint8Array.from([0x85, 0xe2, 0x41, 0xa0, 0x7d, 0x14, 0x8b, 0x41, 0xe4, 0x7d, 0x62, 0xc6, 0x3f, 0x83, 0x0d, 0xc7, 0xa6, 0x85, 0x1a, 0x0b, 0x1f, 0x33, 0xae, 0x4b, 0xb2, 0xf5, 0x07, 0xfb, 0x6c, 0xff, 0xec, 0x40]),
+            keyData : Uint8Array.from(pubKeys[3]),
+            signature : Uint8Array.from([0xe9, 0x6f, 0x66, 0xbe, 0x97, 0x6d, 0x82, 0xe6, 0x01, 0x50, 0xba, 0xec, 0xff, 0x99, 0x06, 0x68, 0x4a, 0xeb, 0xb1, 0xef, 0x18, 0x1f, 0x67, 0xa7, 0x18, 0x9a, 0xc7, 0x8e, 0xa2, 0x3b, 0x6c, 0x0e, 0x54, 0x7f, 0x76, 0x90, 0xa0, 0xe2, 0xdd, 0xcd, 0x04, 0xd8, 0x7d, 0xbc, 0x34, 0x90, 0xdc, 0x19, 0xb3, 0xb3, 0x05, 0x2f, 0x7f, 0xf0, 0x53, 0x8c, 0xb6, 0x8a, 0xfb, 0x36, 0x9b, 0xa3, 0xa5, 0x14]),
+            verified: false, // S out of bounds
+        },
+        {
+            id: "7", // S >> L | A's order = L | R's order = L | (1) = pass | (2) = pass
+            message : Uint8Array.from([0x85, 0xe2, 0x41, 0xa0, 0x7d, 0x14, 0x8b, 0x41, 0xe4, 0x7d, 0x62, 0xc6, 0x3f, 0x83, 0x0d, 0xc7, 0xa6, 0x85, 0x1a, 0x0b, 0x1f, 0x33, 0xae, 0x4b, 0xb2, 0xf5, 0x07, 0xfb, 0x6c, 0xff, 0xec, 0x40]),
+            keyData : Uint8Array.from(pubKeys[3]),
+            signature : Uint8Array.from([0x8c, 0xe5, 0xb9, 0x6c, 0x8f, 0x26, 0xd0, 0xab, 0x6c, 0x47, 0x95, 0x8c, 0x9e, 0x68, 0xb9, 0x37, 0x10, 0x4c, 0xd3, 0x6e, 0x13, 0xc3, 0x35, 0x66, 0xac, 0xd2, 0xfe, 0x8d, 0x38, 0xaa, 0x19, 0x42, 0x7e, 0x71, 0xf9, 0x8a, 0x47, 0x34, 0xe7, 0x4f, 0x2f, 0x13, 0xf0, 0x6f, 0x97, 0xc2, 0x0d, 0x58, 0xcc, 0x3f, 0x54, 0xb8, 0xbd, 0x0d, 0x27, 0x2f, 0x42, 0xb6, 0x95, 0xdd, 0x7e, 0x89, 0xa8, 0xc2, 0x02]),
+            verified: false, // S out of bounds
+        },
+        {
+            id: "8", // 0 < S < L | A's order = mixed | R's order = small (non-canonical) | (1) = ? | (2) = ? Implementations that reduce A before hashing will accept #8 and accept #9, and viceversa
+            message : Uint8Array.from([0x9b, 0xed, 0xc2, 0x67, 0x42, 0x37, 0x25, 0xd4, 0x73, 0x88, 0x86, 0x31, 0xeb, 0xf4, 0x59, 0x88, 0xba, 0xd3, 0xdb, 0x83, 0x85, 0x1e, 0xe8, 0x5c, 0x85, 0xe2, 0x41, 0xa0, 0x7d, 0x14, 0x8b, 0x41]),
+            keyData : Uint8Array.from(pubKeys[1]),
+            signature : Uint8Array.from([0xec, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x03, 0xbe, 0x96, 0x78, 0xac, 0x10, 0x2e, 0xdc, 0xd9, 0x2b, 0x02, 0x10, 0xbb, 0x34, 0xd7, 0x42, 0x8d, 0x12, 0xff, 0xc5, 0xdf, 0x5f, 0x37, 0xe3, 0x59, 0x94, 0x12, 0x66, 0xa4, 0xe3, 0x5f, 0x0f]),
+            verified: false, // non-canonical point should fail in the verificaton (RFC8032)
+        },
+        {
+            id: "9", // 0 < S < L | A's order = mixed | R's order = small (non-canonical) | (1) = ? | (2) = ?
+            message : Uint8Array.from([0x9b, 0xed, 0xc2, 0x67, 0x42, 0x37, 0x25, 0xd4, 0x73, 0x88, 0x86, 0x31, 0xeb, 0xf4, 0x59, 0x88, 0xba, 0xd3, 0xdb, 0x83, 0x85, 0x1e, 0xe8, 0x5c, 0x85, 0xe2, 0x41, 0xa0, 0x7d, 0x14, 0x8b, 0x41]),
+            keyData : Uint8Array.from(pubKeys[1]),
+            signature : Uint8Array.from([0xec, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xca, 0x8c, 0x5b, 0x64, 0xcd, 0x20, 0x89, 0x82, 0xaa, 0x38, 0xd4, 0x93, 0x66, 0x21, 0xa4, 0x77, 0x5a, 0xa2, 0x33, 0xaa, 0x05, 0x05, 0x71, 0x1d, 0x8f, 0xdc, 0xfd, 0xaa, 0x94, 0x3d, 0x49, 0x08]),
+            verified: false, // non-canonical point should fail in the verificaton (RFC8032)
+        },
+        {
+            id: "10", // 0 < S < L | A's order = small (non-canonical) | R's order = mixed | (1) = ? | (2) = ? Implementations that reduce A before hashing will accept #10 and accept #11, and viceversa
+            message : Uint8Array.from([0xe9, 0x6b, 0x70, 0x21, 0xeb, 0x39, 0xc1, 0xa1, 0x63, 0xb6, 0xda, 0x4e, 0x30, 0x93, 0xdc, 0xd3, 0xf2, 0x13, 0x87, 0xda, 0x4c, 0xc4, 0x57, 0x2b, 0xe5, 0x88, 0xfa, 0xfa, 0xe2, 0x3c, 0x15, 0x5b]),
+            keyData : Uint8Array.from(pubKeys[4]),
+            signature : Uint8Array.from([0xa9, 0xd5, 0x52, 0x60, 0xf7, 0x65, 0x26, 0x1e, 0xb9, 0xb8, 0x4e, 0x10, 0x6f, 0x66, 0x5e, 0x00, 0xb8, 0x67, 0x28, 0x7a, 0x76, 0x19, 0x90, 0xd7, 0x13, 0x59, 0x63, 0xee, 0x0a, 0x7d, 0x59, 0xdc, 0xa5, 0xbb, 0x70, 0x47, 0x86, 0xbe, 0x79, 0xfc, 0x47, 0x6f, 0x91, 0xd3, 0xf3, 0xf8, 0x9b, 0x03, 0x98, 0x4d, 0x80, 0x68, 0xdc, 0xf1, 0xbb, 0x7d, 0xfc, 0x66, 0x37, 0xb4, 0x54, 0x50, 0xac, 0x04]),
+            verified: false, // non-canonical point should fail in the verificaton (RFC8032)
+        },
+        {
+            id: "11", // 0 < S < L | A's order = small (non-canonical) | R's order = mixed | (1) = ? | (2) = ? Implementations that reduce A before hashing will accept #10 and accept #11, and viceversa
+            message : Uint8Array.from([0x39, 0xa5, 0x91, 0xf5, 0x32, 0x1b, 0xbe, 0x07, 0xfd, 0x5a, 0x23, 0xdc, 0x2f, 0x39, 0xd0, 0x25, 0xd7, 0x45, 0x26, 0x61, 0x57, 0x46, 0x72, 0x7c, 0xee, 0xfd, 0x6e, 0x82, 0xae, 0x65, 0xc0, 0x6f]),
+            keyData : Uint8Array.from(pubKeys[4]),
+            signature : Uint8Array.from([0xa9, 0xd5, 0x52, 0x60, 0xf7, 0x65, 0x26, 0x1e, 0xb9, 0xb8, 0x4e, 0x10, 0x6f, 0x66, 0x5e, 0x00, 0xb8, 0x67, 0x28, 0x7a, 0x76, 0x19, 0x90, 0xd7, 0x13, 0x59, 0x63, 0xee, 0x0a, 0x7d, 0x59, 0xdc, 0xa5, 0xbb, 0x70, 0x47, 0x86, 0xbe, 0x79, 0xfc, 0x47, 0x6f, 0x91, 0xd3, 0xf3, 0xf8, 0x9b, 0x03, 0x98, 0x4d, 0x80, 0x68, 0xdc, 0xf1, 0xbb, 0x7d, 0xfc, 0x66, 0x37, 0xb4, 0x54, 0x50, 0xac, 0x04]),
+            verified: false, // non-canonical point should fail in the verificaton (RFC8032)
+        },
+        // https://eprint.iacr.org/2020/1244.pdf#section.A.2
+        // cases breaking non-repudiation
+        {
+            id: "12", // 0 < S < L | A's order = small | R's order = mixed | (1) = ? | (2) = ?
+            message : Uint8Array.from([0x53, 0x65, 0x6e, 0x64, 0x20, 0x31, 0x30, 0x30, 0x20, 0x55, 0x53, 0x44, 0x20, 0x74, 0x6f, 0x20, 0x41, 0x6c, 0x69, 0x63, 0x65]),
+            keyData : Uint8Array.from(pubKeys[5]),
+            signature : Uint8Array.from([0xa9, 0xd5, 0x52, 0x60, 0xf7, 0x65, 0x26, 0x1e, 0xb9, 0xb8, 0x4e, 0x10, 0x6f, 0x66, 0x5e, 0x00, 0xb8, 0x67, 0x28, 0x7a, 0x76, 0x19, 0x90, 0xd7, 0x13, 0x59, 0x63, 0xee, 0x0a, 0x7d, 0x59, 0xdc, 0xa5, 0xbb, 0x70, 0x47, 0x86, 0xbe, 0x79, 0xfc, 0x47, 0x6f, 0x91, 0xd3, 0xf3, 0xf8, 0x9b, 0x03, 0x98, 0x4d, 0x80, 0x68, 0xdc, 0xf1, 0xbb, 0x7d, 0xfc, 0x66, 0x37, 0xb4, 0x54, 0x50, 0xac, 0x04]),
+            verified: false,
+        },
+        {
+            id: "13", // 0 < S < L | A's order = small | R's order = mixed | (1) = ? | (2) = ?
+            message : Uint8Array.from([0x53, 0x65, 0x6e, 0x64, 0x20, 0x31, 0x30, 0x30, 0x30, 0x30, 0x30, 0x20, 0x55, 0x53, 0x44, 0x20, 0x74, 0x6f, 0x20, 0x41, 0x6c, 0x69, 0x63, 0x65]),
+            keyData : Uint8Array.from(pubKeys[5]),
+            signature : Uint8Array.from([0xa9, 0xd5, 0x52, 0x60, 0xf7, 0x65, 0x26, 0x1e, 0xb9, 0xb8, 0x4e, 0x10, 0x6f, 0x66, 0x5e, 0x00, 0xb8, 0x67, 0x28, 0x7a, 0x76, 0x19, 0x90, 0xd7, 0x13, 0x59, 0x63, 0xee, 0x0a, 0x7d, 0x59, 0xdc, 0xa5, 0xbb, 0x70, 0x47, 0x86, 0xbe, 0x79, 0xfc, 0x47, 0x6f, 0x91, 0xd3, 0xf3, 0xf8, 0x9b, 0x03, 0x98, 0x4d, 0x80, 0x68, 0xdc, 0xf1, 0xbb, 0x7d, 0xfc, 0x66, 0x37, 0xb4, 0x54, 0x50, 0xac, 0x04]),
+            verified: false,
+        }
+    ]
+};