diff --git a/sea.js b/sea.js
index 0a931a6a..f0a9725f 100644
--- a/sea.js
+++ b/sea.js
@@ -17,6 +17,13 @@
   }
   if(typeof module !== "undefined"){ var common = module }
   /* UNBUILD */
+  function atob(a) {
+    return new Buffer(a, 'base64').toString('binary');
+  };
+
+  function btoa(b) {
+    return new Buffer(b).toString('base64');
+  };
 
   ;USE(function(module){
     // Security, Encryption, and Authorization: SEA.js
@@ -174,7 +181,7 @@
         random: (len) => Buffer.from(crypto.randomBytes(len))
       });
       //try{
-        const WebCrypto = USE('node-webcrypto-ossl', 1);
+        const { Crypto: WebCrypto } = USE('@peculiar/webcrypto', 1);
         api.ossl = api.subtle = new WebCrypto({directory: 'ossl'}).subtle // ECDH
       //}catch(e){
         //console.log("node-webcrypto-ossl is optionally needed for ECDH, please install if needed.");
diff --git a/sea/array.js b/sea/array.js
index fecdde5d..d10c983c 100644
--- a/sea/array.js
+++ b/sea/array.js
@@ -1,4 +1,6 @@
-
+    function btoa(b) {
+      return new Buffer(b).toString('base64');
+    };
     // This is Array extended to have .toString(['utf8'|'hex'|'base64'])
     function SeaArray() {}
     Object.assign(SeaArray, { from: Array.from })
diff --git a/sea/buffer.js b/sea/buffer.js
index 1854bd1c..37f753b4 100644
--- a/sea/buffer.js
+++ b/sea/buffer.js
@@ -1,4 +1,6 @@
-
+    function atob(a) {
+      return new Buffer(a, 'base64').toString('binary');
+    };
     // This is Buffer implementation used in SEA. Functionality is mostly
     // compatible with NodeJS 'safe-buffer' and is used for encoding conversions
     // between binary and 'hex' | 'utf8' | 'base64'
diff --git a/sea/shim.js b/sea/shim.js
index b6026e8c..21d94355 100644
--- a/sea/shim.js
+++ b/sea/shim.js
@@ -22,7 +22,7 @@
         random: (len) => Buffer.from(crypto.randomBytes(len))
       });
       //try{
-        const WebCrypto = require('node-webcrypto-ossl', 1);
+        const { Crypto: WebCrypto } = USE('@peculiar/webcrypto', 1);
         api.ossl = api.subtle = new WebCrypto({directory: 'ossl'}).subtle // ECDH
       //}catch(e){
         //console.log("node-webcrypto-ossl is optionally needed for ECDH, please install if needed.");