diff --git a/schema/cryptography-defs.json b/schema/cryptography-defs.json
index e3e1728e..07c5aa7e 100644
--- a/schema/cryptography-defs.json
+++ b/schema/cryptography-defs.json
@@ -338,6 +338,16 @@
           "pattern": "AES[-(128|192|256)][-(GCM|CCM)][-{tagLength}][-{ivLength}]",
           "primitive": "ae"
         },
+        {
+          "standard": [
+            {
+              "name": "RFC 8452",
+              "url": "https://doi.org/10.17487/RFC8452"
+            }
+          ],
+          "pattern": "AES[-(128|192|256)]-GCM-SIV[-{tagLength}][-{ivLength}]",
+          "primitive": "ae"
+        },
         {
           "standard": [
             {
@@ -935,11 +945,11 @@
           "primitive": "hash"
         },
         {
-          "pattern": "BLAKE2b-(160|256|384|512)-HMAC",
+          "pattern": "BLAKE2s-(160|256)-HMAC",
           "primitive": "mac"
         }
       ]
-    },
+    },    
     {
       "family": "BLAKE3",
       "standard": [
@@ -1018,11 +1028,11 @@
       ],
       "variant": [
         {
-          "pattern": "TUAC[-MAC]",
+          "pattern": "TUAK[-MAC]",
           "primitive": "mac"
         },
         {
-          "pattern": "TUAC[-KDF]",
+          "pattern": "TUAK[-KDF]",
           "primitive": "kdf"
         }
       ]
@@ -1407,7 +1417,7 @@
       ],
       "variant": [
         {
-          "pattern": "bcrypt[-{cost)]",
+          "pattern": "bcrypt[-{cost}]",
           "primitive": "hash"
         }
       ]