diff --git a/Libraries/LibWeb/Crypto/CryptoAlgorithms.cpp b/Libraries/LibWeb/Crypto/CryptoAlgorithms.cpp
index b7b498b2a3b1..0af6bca2f493 100644
--- a/Libraries/LibWeb/Crypto/CryptoAlgorithms.cpp
+++ b/Libraries/LibWeb/Crypto/CryptoAlgorithms.cpp
@@ -6111,13 +6111,13 @@ static WebIDL::ExceptionOr<WebIDL::UnsignedLong> hmac_hash_block_size(JS::Realm&
 {
     auto hash_name = TRY(hash.name(realm.vm()));
     if (hash_name == "SHA-1")
-        return ::Crypto::Hash::SHA1::digest_size();
+        return ::Crypto::Hash::SHA1::block_size();
     if (hash_name == "SHA-256")
-        return ::Crypto::Hash::SHA256::digest_size();
+        return ::Crypto::Hash::SHA256::block_size();
     if (hash_name == "SHA-384")
-        return ::Crypto::Hash::SHA384::digest_size();
+        return ::Crypto::Hash::SHA384::block_size();
     if (hash_name == "SHA-512")
-        return ::Crypto::Hash::SHA512::digest_size();
+        return ::Crypto::Hash::SHA512::block_size();
     return WebIDL::NotSupportedError::create(realm, MUST(String::formatted("Invalid hash function '{}'", hash_name)));
 }
 
@@ -6166,7 +6166,7 @@ WebIDL::ExceptionOr<Variant<GC::Ref<CryptoKey>, GC::Ref<CryptoKeyPair>>> HMAC::g
     if (!normalized_algorithm.length.has_value()) {
         // Let length be the block size in bits of the hash function identified by the hash member
         // of normalizedAlgorithm.
-        length = TRY(hmac_hash_block_size(m_realm, normalized_algorithm.hash));
+        length = TRY(hmac_hash_block_size(m_realm, normalized_algorithm.hash)) * 8;
     }
 
     // Otherwise, if the length member of normalizedAlgorithm is non-zero:
@@ -6488,7 +6488,7 @@ WebIDL::ExceptionOr<JS::Value> HMAC::get_key_length(AlgorithmParams const& param
     if (!normalized_derived_key_algorithm.length.has_value()) {
         // Let length be the block size in bits of the hash function identified by the hash member of
         // normalizedDerivedKeyAlgorithm.
-        length = TRY(hmac_hash_block_size(m_realm, normalized_derived_key_algorithm.hash));
+        length = TRY(hmac_hash_block_size(m_realm, normalized_derived_key_algorithm.hash)) * 8;
     }
 
     // Otherwise, if the length member of normalizedDerivedKeyAlgorithm is non-zero:
diff --git a/Tests/LibWeb/Text/expected/wpt-import/WebCryptoAPI/generateKey/successes_HMAC.https.any.txt b/Tests/LibWeb/Text/expected/wpt-import/WebCryptoAPI/generateKey/successes_HMAC.https.any.txt
index f794e837c640..df29083f2904 100644
--- a/Tests/LibWeb/Text/expected/wpt-import/WebCryptoAPI/generateKey/successes_HMAC.https.any.txt
+++ b/Tests/LibWeb/Text/expected/wpt-import/WebCryptoAPI/generateKey/successes_HMAC.https.any.txt
@@ -2,8 +2,7 @@ Harness status: OK
 
 Found 192 tests
 
-96 Pass
-96 Fail
+192 Pass
 Pass	Success: generateKey({hash: SHA-1, length: 160, name: HMAC}, false, [sign])
 Pass	Success: generateKey({hash: SHA-1, length: 160, name: HMAC}, true, [sign])
 Pass	Success: generateKey({hash: SHA-1, length: 160, name: HMAC}, false, [verify, sign])
@@ -36,38 +35,38 @@ Pass	Success: generateKey({hash: SHA-512, length: 512, name: HMAC}, false, [veri
 Pass	Success: generateKey({hash: SHA-512, length: 512, name: HMAC}, true, [verify])
 Pass	Success: generateKey({hash: SHA-512, length: 512, name: HMAC}, false, [sign, verify, sign, verify])
 Pass	Success: generateKey({hash: SHA-512, length: 512, name: HMAC}, true, [sign, verify, sign, verify])
-Fail	Success: generateKey({hash: SHA-1, name: HMAC}, false, [sign])
-Fail	Success: generateKey({hash: SHA-1, name: HMAC}, true, [sign])
-Fail	Success: generateKey({hash: SHA-1, name: HMAC}, false, [verify, sign])
-Fail	Success: generateKey({hash: SHA-1, name: HMAC}, true, [verify, sign])
-Fail	Success: generateKey({hash: SHA-1, name: HMAC}, false, [verify])
-Fail	Success: generateKey({hash: SHA-1, name: HMAC}, true, [verify])
-Fail	Success: generateKey({hash: SHA-1, name: HMAC}, false, [sign, verify, sign, verify])
-Fail	Success: generateKey({hash: SHA-1, name: HMAC}, true, [sign, verify, sign, verify])
-Fail	Success: generateKey({hash: SHA-256, name: HMAC}, false, [sign])
-Fail	Success: generateKey({hash: SHA-256, name: HMAC}, true, [sign])
-Fail	Success: generateKey({hash: SHA-256, name: HMAC}, false, [verify, sign])
-Fail	Success: generateKey({hash: SHA-256, name: HMAC}, true, [verify, sign])
-Fail	Success: generateKey({hash: SHA-256, name: HMAC}, false, [verify])
-Fail	Success: generateKey({hash: SHA-256, name: HMAC}, true, [verify])
-Fail	Success: generateKey({hash: SHA-256, name: HMAC}, false, [sign, verify, sign, verify])
-Fail	Success: generateKey({hash: SHA-256, name: HMAC}, true, [sign, verify, sign, verify])
-Fail	Success: generateKey({hash: SHA-384, name: HMAC}, false, [sign])
-Fail	Success: generateKey({hash: SHA-384, name: HMAC}, true, [sign])
-Fail	Success: generateKey({hash: SHA-384, name: HMAC}, false, [verify, sign])
-Fail	Success: generateKey({hash: SHA-384, name: HMAC}, true, [verify, sign])
-Fail	Success: generateKey({hash: SHA-384, name: HMAC}, false, [verify])
-Fail	Success: generateKey({hash: SHA-384, name: HMAC}, true, [verify])
-Fail	Success: generateKey({hash: SHA-384, name: HMAC}, false, [sign, verify, sign, verify])
-Fail	Success: generateKey({hash: SHA-384, name: HMAC}, true, [sign, verify, sign, verify])
-Fail	Success: generateKey({hash: SHA-512, name: HMAC}, false, [sign])
-Fail	Success: generateKey({hash: SHA-512, name: HMAC}, true, [sign])
-Fail	Success: generateKey({hash: SHA-512, name: HMAC}, false, [verify, sign])
-Fail	Success: generateKey({hash: SHA-512, name: HMAC}, true, [verify, sign])
-Fail	Success: generateKey({hash: SHA-512, name: HMAC}, false, [verify])
-Fail	Success: generateKey({hash: SHA-512, name: HMAC}, true, [verify])
-Fail	Success: generateKey({hash: SHA-512, name: HMAC}, false, [sign, verify, sign, verify])
-Fail	Success: generateKey({hash: SHA-512, name: HMAC}, true, [sign, verify, sign, verify])
+Pass	Success: generateKey({hash: SHA-1, name: HMAC}, false, [sign])
+Pass	Success: generateKey({hash: SHA-1, name: HMAC}, true, [sign])
+Pass	Success: generateKey({hash: SHA-1, name: HMAC}, false, [verify, sign])
+Pass	Success: generateKey({hash: SHA-1, name: HMAC}, true, [verify, sign])
+Pass	Success: generateKey({hash: SHA-1, name: HMAC}, false, [verify])
+Pass	Success: generateKey({hash: SHA-1, name: HMAC}, true, [verify])
+Pass	Success: generateKey({hash: SHA-1, name: HMAC}, false, [sign, verify, sign, verify])
+Pass	Success: generateKey({hash: SHA-1, name: HMAC}, true, [sign, verify, sign, verify])
+Pass	Success: generateKey({hash: SHA-256, name: HMAC}, false, [sign])
+Pass	Success: generateKey({hash: SHA-256, name: HMAC}, true, [sign])
+Pass	Success: generateKey({hash: SHA-256, name: HMAC}, false, [verify, sign])
+Pass	Success: generateKey({hash: SHA-256, name: HMAC}, true, [verify, sign])
+Pass	Success: generateKey({hash: SHA-256, name: HMAC}, false, [verify])
+Pass	Success: generateKey({hash: SHA-256, name: HMAC}, true, [verify])
+Pass	Success: generateKey({hash: SHA-256, name: HMAC}, false, [sign, verify, sign, verify])
+Pass	Success: generateKey({hash: SHA-256, name: HMAC}, true, [sign, verify, sign, verify])
+Pass	Success: generateKey({hash: SHA-384, name: HMAC}, false, [sign])
+Pass	Success: generateKey({hash: SHA-384, name: HMAC}, true, [sign])
+Pass	Success: generateKey({hash: SHA-384, name: HMAC}, false, [verify, sign])
+Pass	Success: generateKey({hash: SHA-384, name: HMAC}, true, [verify, sign])
+Pass	Success: generateKey({hash: SHA-384, name: HMAC}, false, [verify])
+Pass	Success: generateKey({hash: SHA-384, name: HMAC}, true, [verify])
+Pass	Success: generateKey({hash: SHA-384, name: HMAC}, false, [sign, verify, sign, verify])
+Pass	Success: generateKey({hash: SHA-384, name: HMAC}, true, [sign, verify, sign, verify])
+Pass	Success: generateKey({hash: SHA-512, name: HMAC}, false, [sign])
+Pass	Success: generateKey({hash: SHA-512, name: HMAC}, true, [sign])
+Pass	Success: generateKey({hash: SHA-512, name: HMAC}, false, [verify, sign])
+Pass	Success: generateKey({hash: SHA-512, name: HMAC}, true, [verify, sign])
+Pass	Success: generateKey({hash: SHA-512, name: HMAC}, false, [verify])
+Pass	Success: generateKey({hash: SHA-512, name: HMAC}, true, [verify])
+Pass	Success: generateKey({hash: SHA-512, name: HMAC}, false, [sign, verify, sign, verify])
+Pass	Success: generateKey({hash: SHA-512, name: HMAC}, true, [sign, verify, sign, verify])
 Pass	Success: generateKey({hash: SHA-1, length: 160, name: hmac}, false, [sign])
 Pass	Success: generateKey({hash: SHA-1, length: 160, name: hmac}, true, [sign])
 Pass	Success: generateKey({hash: SHA-1, length: 160, name: hmac}, false, [verify, sign])
@@ -100,38 +99,38 @@ Pass	Success: generateKey({hash: SHA-512, length: 512, name: hmac}, false, [veri
 Pass	Success: generateKey({hash: SHA-512, length: 512, name: hmac}, true, [verify])
 Pass	Success: generateKey({hash: SHA-512, length: 512, name: hmac}, false, [sign, verify, sign, verify])
 Pass	Success: generateKey({hash: SHA-512, length: 512, name: hmac}, true, [sign, verify, sign, verify])
-Fail	Success: generateKey({hash: SHA-1, name: hmac}, false, [sign])
-Fail	Success: generateKey({hash: SHA-1, name: hmac}, true, [sign])
-Fail	Success: generateKey({hash: SHA-1, name: hmac}, false, [verify, sign])
-Fail	Success: generateKey({hash: SHA-1, name: hmac}, true, [verify, sign])
-Fail	Success: generateKey({hash: SHA-1, name: hmac}, false, [verify])
-Fail	Success: generateKey({hash: SHA-1, name: hmac}, true, [verify])
-Fail	Success: generateKey({hash: SHA-1, name: hmac}, false, [sign, verify, sign, verify])
-Fail	Success: generateKey({hash: SHA-1, name: hmac}, true, [sign, verify, sign, verify])
-Fail	Success: generateKey({hash: SHA-256, name: hmac}, false, [sign])
-Fail	Success: generateKey({hash: SHA-256, name: hmac}, true, [sign])
-Fail	Success: generateKey({hash: SHA-256, name: hmac}, false, [verify, sign])
-Fail	Success: generateKey({hash: SHA-256, name: hmac}, true, [verify, sign])
-Fail	Success: generateKey({hash: SHA-256, name: hmac}, false, [verify])
-Fail	Success: generateKey({hash: SHA-256, name: hmac}, true, [verify])
-Fail	Success: generateKey({hash: SHA-256, name: hmac}, false, [sign, verify, sign, verify])
-Fail	Success: generateKey({hash: SHA-256, name: hmac}, true, [sign, verify, sign, verify])
-Fail	Success: generateKey({hash: SHA-384, name: hmac}, false, [sign])
-Fail	Success: generateKey({hash: SHA-384, name: hmac}, true, [sign])
-Fail	Success: generateKey({hash: SHA-384, name: hmac}, false, [verify, sign])
-Fail	Success: generateKey({hash: SHA-384, name: hmac}, true, [verify, sign])
-Fail	Success: generateKey({hash: SHA-384, name: hmac}, false, [verify])
-Fail	Success: generateKey({hash: SHA-384, name: hmac}, true, [verify])
-Fail	Success: generateKey({hash: SHA-384, name: hmac}, false, [sign, verify, sign, verify])
-Fail	Success: generateKey({hash: SHA-384, name: hmac}, true, [sign, verify, sign, verify])
-Fail	Success: generateKey({hash: SHA-512, name: hmac}, false, [sign])
-Fail	Success: generateKey({hash: SHA-512, name: hmac}, true, [sign])
-Fail	Success: generateKey({hash: SHA-512, name: hmac}, false, [verify, sign])
-Fail	Success: generateKey({hash: SHA-512, name: hmac}, true, [verify, sign])
-Fail	Success: generateKey({hash: SHA-512, name: hmac}, false, [verify])
-Fail	Success: generateKey({hash: SHA-512, name: hmac}, true, [verify])
-Fail	Success: generateKey({hash: SHA-512, name: hmac}, false, [sign, verify, sign, verify])
-Fail	Success: generateKey({hash: SHA-512, name: hmac}, true, [sign, verify, sign, verify])
+Pass	Success: generateKey({hash: SHA-1, name: hmac}, false, [sign])
+Pass	Success: generateKey({hash: SHA-1, name: hmac}, true, [sign])
+Pass	Success: generateKey({hash: SHA-1, name: hmac}, false, [verify, sign])
+Pass	Success: generateKey({hash: SHA-1, name: hmac}, true, [verify, sign])
+Pass	Success: generateKey({hash: SHA-1, name: hmac}, false, [verify])
+Pass	Success: generateKey({hash: SHA-1, name: hmac}, true, [verify])
+Pass	Success: generateKey({hash: SHA-1, name: hmac}, false, [sign, verify, sign, verify])
+Pass	Success: generateKey({hash: SHA-1, name: hmac}, true, [sign, verify, sign, verify])
+Pass	Success: generateKey({hash: SHA-256, name: hmac}, false, [sign])
+Pass	Success: generateKey({hash: SHA-256, name: hmac}, true, [sign])
+Pass	Success: generateKey({hash: SHA-256, name: hmac}, false, [verify, sign])
+Pass	Success: generateKey({hash: SHA-256, name: hmac}, true, [verify, sign])
+Pass	Success: generateKey({hash: SHA-256, name: hmac}, false, [verify])
+Pass	Success: generateKey({hash: SHA-256, name: hmac}, true, [verify])
+Pass	Success: generateKey({hash: SHA-256, name: hmac}, false, [sign, verify, sign, verify])
+Pass	Success: generateKey({hash: SHA-256, name: hmac}, true, [sign, verify, sign, verify])
+Pass	Success: generateKey({hash: SHA-384, name: hmac}, false, [sign])
+Pass	Success: generateKey({hash: SHA-384, name: hmac}, true, [sign])
+Pass	Success: generateKey({hash: SHA-384, name: hmac}, false, [verify, sign])
+Pass	Success: generateKey({hash: SHA-384, name: hmac}, true, [verify, sign])
+Pass	Success: generateKey({hash: SHA-384, name: hmac}, false, [verify])
+Pass	Success: generateKey({hash: SHA-384, name: hmac}, true, [verify])
+Pass	Success: generateKey({hash: SHA-384, name: hmac}, false, [sign, verify, sign, verify])
+Pass	Success: generateKey({hash: SHA-384, name: hmac}, true, [sign, verify, sign, verify])
+Pass	Success: generateKey({hash: SHA-512, name: hmac}, false, [sign])
+Pass	Success: generateKey({hash: SHA-512, name: hmac}, true, [sign])
+Pass	Success: generateKey({hash: SHA-512, name: hmac}, false, [verify, sign])
+Pass	Success: generateKey({hash: SHA-512, name: hmac}, true, [verify, sign])
+Pass	Success: generateKey({hash: SHA-512, name: hmac}, false, [verify])
+Pass	Success: generateKey({hash: SHA-512, name: hmac}, true, [verify])
+Pass	Success: generateKey({hash: SHA-512, name: hmac}, false, [sign, verify, sign, verify])
+Pass	Success: generateKey({hash: SHA-512, name: hmac}, true, [sign, verify, sign, verify])
 Pass	Success: generateKey({hash: SHA-1, length: 160, name: Hmac}, false, [sign])
 Pass	Success: generateKey({hash: SHA-1, length: 160, name: Hmac}, true, [sign])
 Pass	Success: generateKey({hash: SHA-1, length: 160, name: Hmac}, false, [verify, sign])
@@ -164,35 +163,35 @@ Pass	Success: generateKey({hash: SHA-512, length: 512, name: Hmac}, false, [veri
 Pass	Success: generateKey({hash: SHA-512, length: 512, name: Hmac}, true, [verify])
 Pass	Success: generateKey({hash: SHA-512, length: 512, name: Hmac}, false, [sign, verify, sign, verify])
 Pass	Success: generateKey({hash: SHA-512, length: 512, name: Hmac}, true, [sign, verify, sign, verify])
-Fail	Success: generateKey({hash: SHA-1, name: Hmac}, false, [sign])
-Fail	Success: generateKey({hash: SHA-1, name: Hmac}, true, [sign])
-Fail	Success: generateKey({hash: SHA-1, name: Hmac}, false, [verify, sign])
-Fail	Success: generateKey({hash: SHA-1, name: Hmac}, true, [verify, sign])
-Fail	Success: generateKey({hash: SHA-1, name: Hmac}, false, [verify])
-Fail	Success: generateKey({hash: SHA-1, name: Hmac}, true, [verify])
-Fail	Success: generateKey({hash: SHA-1, name: Hmac}, false, [sign, verify, sign, verify])
-Fail	Success: generateKey({hash: SHA-1, name: Hmac}, true, [sign, verify, sign, verify])
-Fail	Success: generateKey({hash: SHA-256, name: Hmac}, false, [sign])
-Fail	Success: generateKey({hash: SHA-256, name: Hmac}, true, [sign])
-Fail	Success: generateKey({hash: SHA-256, name: Hmac}, false, [verify, sign])
-Fail	Success: generateKey({hash: SHA-256, name: Hmac}, true, [verify, sign])
-Fail	Success: generateKey({hash: SHA-256, name: Hmac}, false, [verify])
-Fail	Success: generateKey({hash: SHA-256, name: Hmac}, true, [verify])
-Fail	Success: generateKey({hash: SHA-256, name: Hmac}, false, [sign, verify, sign, verify])
-Fail	Success: generateKey({hash: SHA-256, name: Hmac}, true, [sign, verify, sign, verify])
-Fail	Success: generateKey({hash: SHA-384, name: Hmac}, false, [sign])
-Fail	Success: generateKey({hash: SHA-384, name: Hmac}, true, [sign])
-Fail	Success: generateKey({hash: SHA-384, name: Hmac}, false, [verify, sign])
-Fail	Success: generateKey({hash: SHA-384, name: Hmac}, true, [verify, sign])
-Fail	Success: generateKey({hash: SHA-384, name: Hmac}, false, [verify])
-Fail	Success: generateKey({hash: SHA-384, name: Hmac}, true, [verify])
-Fail	Success: generateKey({hash: SHA-384, name: Hmac}, false, [sign, verify, sign, verify])
-Fail	Success: generateKey({hash: SHA-384, name: Hmac}, true, [sign, verify, sign, verify])
-Fail	Success: generateKey({hash: SHA-512, name: Hmac}, false, [sign])
-Fail	Success: generateKey({hash: SHA-512, name: Hmac}, true, [sign])
-Fail	Success: generateKey({hash: SHA-512, name: Hmac}, false, [verify, sign])
-Fail	Success: generateKey({hash: SHA-512, name: Hmac}, true, [verify, sign])
-Fail	Success: generateKey({hash: SHA-512, name: Hmac}, false, [verify])
-Fail	Success: generateKey({hash: SHA-512, name: Hmac}, true, [verify])
-Fail	Success: generateKey({hash: SHA-512, name: Hmac}, false, [sign, verify, sign, verify])
-Fail	Success: generateKey({hash: SHA-512, name: Hmac}, true, [sign, verify, sign, verify])
\ No newline at end of file
+Pass	Success: generateKey({hash: SHA-1, name: Hmac}, false, [sign])
+Pass	Success: generateKey({hash: SHA-1, name: Hmac}, true, [sign])
+Pass	Success: generateKey({hash: SHA-1, name: Hmac}, false, [verify, sign])
+Pass	Success: generateKey({hash: SHA-1, name: Hmac}, true, [verify, sign])
+Pass	Success: generateKey({hash: SHA-1, name: Hmac}, false, [verify])
+Pass	Success: generateKey({hash: SHA-1, name: Hmac}, true, [verify])
+Pass	Success: generateKey({hash: SHA-1, name: Hmac}, false, [sign, verify, sign, verify])
+Pass	Success: generateKey({hash: SHA-1, name: Hmac}, true, [sign, verify, sign, verify])
+Pass	Success: generateKey({hash: SHA-256, name: Hmac}, false, [sign])
+Pass	Success: generateKey({hash: SHA-256, name: Hmac}, true, [sign])
+Pass	Success: generateKey({hash: SHA-256, name: Hmac}, false, [verify, sign])
+Pass	Success: generateKey({hash: SHA-256, name: Hmac}, true, [verify, sign])
+Pass	Success: generateKey({hash: SHA-256, name: Hmac}, false, [verify])
+Pass	Success: generateKey({hash: SHA-256, name: Hmac}, true, [verify])
+Pass	Success: generateKey({hash: SHA-256, name: Hmac}, false, [sign, verify, sign, verify])
+Pass	Success: generateKey({hash: SHA-256, name: Hmac}, true, [sign, verify, sign, verify])
+Pass	Success: generateKey({hash: SHA-384, name: Hmac}, false, [sign])
+Pass	Success: generateKey({hash: SHA-384, name: Hmac}, true, [sign])
+Pass	Success: generateKey({hash: SHA-384, name: Hmac}, false, [verify, sign])
+Pass	Success: generateKey({hash: SHA-384, name: Hmac}, true, [verify, sign])
+Pass	Success: generateKey({hash: SHA-384, name: Hmac}, false, [verify])
+Pass	Success: generateKey({hash: SHA-384, name: Hmac}, true, [verify])
+Pass	Success: generateKey({hash: SHA-384, name: Hmac}, false, [sign, verify, sign, verify])
+Pass	Success: generateKey({hash: SHA-384, name: Hmac}, true, [sign, verify, sign, verify])
+Pass	Success: generateKey({hash: SHA-512, name: Hmac}, false, [sign])
+Pass	Success: generateKey({hash: SHA-512, name: Hmac}, true, [sign])
+Pass	Success: generateKey({hash: SHA-512, name: Hmac}, false, [verify, sign])
+Pass	Success: generateKey({hash: SHA-512, name: Hmac}, true, [verify, sign])
+Pass	Success: generateKey({hash: SHA-512, name: Hmac}, false, [verify])
+Pass	Success: generateKey({hash: SHA-512, name: Hmac}, true, [verify])
+Pass	Success: generateKey({hash: SHA-512, name: Hmac}, false, [sign, verify, sign, verify])
+Pass	Success: generateKey({hash: SHA-512, name: Hmac}, true, [sign, verify, sign, verify])
\ No newline at end of file