diff --git a/package.json b/package.json
index 22753224..e80716e9 100644
--- a/package.json
+++ b/package.json
@@ -75,7 +75,7 @@
   "dependencies": {
     "@mattiasbuelens/web-streams-polyfill": "0.1.0-alpha.4",
     "address-rfc2822": "^2.0.3",
-    "asmcrypto.js": "^0.22.0",
+    "asmcrypto.js": "^2.3.0",
     "asn1.js": "^5.0.0",
     "bn.js": "^4.11.8",
     "buffer": "^5.0.8",
diff --git a/src/crypto/cipher/aes.js b/src/crypto/cipher/aes.js
index a41c89aa..ff389480 100644
--- a/src/crypto/cipher/aes.js
+++ b/src/crypto/cipher/aes.js
@@ -2,7 +2,7 @@
  * @requires asmcrypto.js
  */
 
-import { AES_ECB } from 'asmcrypto.js/src/aes/ecb/ecb';
+import { AES_ECB } from 'asmcrypto.js/dist_es8/aes/ecb';
 
 // TODO use webCrypto or nodeCrypto when possible.
 function aes(length) {
@@ -10,11 +10,11 @@ function aes(length) {
     const aes_ecb = new AES_ECB(key);
 
     this.encrypt = function(block) {
-      return aes_ecb.encrypt(block).result;
+      return aes_ecb.encrypt(block);
     };
 
     this.decrypt = function(block) {
-      return aes_ecb.decrypt(block).result;
+      return aes_ecb.decrypt(block);
     };
   };
 
diff --git a/src/crypto/cmac.js b/src/crypto/cmac.js
index de0b9146..d34838a6 100644
--- a/src/crypto/cmac.js
+++ b/src/crypto/cmac.js
@@ -6,7 +6,7 @@
  * @module crypto/cmac
  */
 
-import { AES_CBC } from 'asmcrypto.js/src/aes/cbc/exports';
+import { AES_CBC } from 'asmcrypto.js/dist_es8/aes/cbc';
 import util from '../util';
 
 const webCrypto = util.getWebCrypto();
diff --git a/src/crypto/eax.js b/src/crypto/eax.js
index acad0d67..b40f64ef 100644
--- a/src/crypto/eax.js
+++ b/src/crypto/eax.js
@@ -24,7 +24,7 @@
  * @module crypto/eax
  */
 
-import { AES_CTR } from 'asmcrypto.js/src/aes/ctr/exports';
+import { AES_CTR } from 'asmcrypto.js/dist_es8/aes/ctr';
 import CMAC from './cmac';
 import util from '../util';
 
diff --git a/src/crypto/gcm.js b/src/crypto/gcm.js
index 888decd8..55c25c80 100644
--- a/src/crypto/gcm.js
+++ b/src/crypto/gcm.js
@@ -23,7 +23,7 @@
  * @module crypto/gcm
  */
 
-import { AES_GCM } from 'asmcrypto.js/src/aes/gcm/exports';
+import { AES_GCM } from 'asmcrypto.js/dist_es8/aes/gcm';
 import util from '../util';
 
 const webCrypto = util.getWebCrypto(); // no GCM support in IE11, Safari 9
diff --git a/src/crypto/hash/index.js b/src/crypto/hash/index.js
index 92a0987a..65a18bfa 100644
--- a/src/crypto/hash/index.js
+++ b/src/crypto/hash/index.js
@@ -10,9 +10,9 @@
  * @module crypto/hash
  */
 
-import { SHA1 } from 'asmcrypto.js/src/hash/sha1/exports';
-import { SHA256 } from 'asmcrypto.js/src/hash/sha256/exports';
-import { SHA512 } from 'asmcrypto.js/src/hash/sha512/exports';
+import { Sha1 } from 'asmcrypto.js/dist_es8/hash/sha1/sha1';
+import { Sha256 } from 'asmcrypto.js/dist_es8/hash/sha256/sha256';
+import { Sha512 } from 'asmcrypto.js/dist_es8/hash/sha512/sha512';
 import sha224 from 'hash.js/lib/hash/sha/224';
 import sha384 from 'hash.js/lib/hash/sha/384';
 import { ripemd160 } from 'hash.js/lib/hash/ripemd';
@@ -68,11 +68,11 @@ if (nodeCrypto) { // Use Node native crypto for all hash functions
 } else { // Use JS fallbacks
   hash_fns = {
     md5: md5,
-    sha1: asmcrypto_hash(SHA1),
+    sha1: asmcrypto_hash(Sha1),
     sha224: hashjs_hash(sha224),
-    sha256: asmcrypto_hash(SHA256),
+    sha256: asmcrypto_hash(Sha256),
     sha384: hashjs_hash(sha384),
-    sha512: asmcrypto_hash(SHA512),
+    sha512: asmcrypto_hash(Sha512),
     ripemd: hashjs_hash(ripemd160)
   };
 }
diff --git a/src/packet/sym_encrypted_integrity_protected.js b/src/packet/sym_encrypted_integrity_protected.js
index 6b6b2397..d5176dda 100644
--- a/src/packet/sym_encrypted_integrity_protected.js
+++ b/src/packet/sym_encrypted_integrity_protected.js
@@ -24,7 +24,7 @@
  * @requires util
  */
 
-import { AES_CFB, AES_CFB_Decrypt, AES_CFB_Encrypt } from 'asmcrypto.js/src/aes/cfb/exports';
+import { AES_CFB } from 'asmcrypto.js/dist_es8/aes/cfb';
 
 import config from '../config';
 import crypto from '../crypto';
@@ -169,8 +169,8 @@ function aesEncrypt(algo, pt, key) {
   if (nodeCrypto) { // Node crypto library.
     return nodeEncrypt(algo, pt, key);
   } // asm.js fallback
-  const cfb = new AES_CFB_Encrypt(key);
-  return stream.transform(pt, value => cfb.process(value).result, () => cfb.finish().result);
+  const cfb = new AES_CFB(key);
+  return stream.transform(pt, value => cfb.AES_Encrypt_process(value), () => cfb.AES_Encrypt_finish());
 }
 
 function aesDecrypt(algo, ct, key) {
@@ -179,8 +179,8 @@ function aesDecrypt(algo, ct, key) {
     pt = nodeDecrypt(algo, ct, key);
   } else { // asm.js fallback
     if (util.isStream(ct)) {
-      const cfb = new AES_CFB_Decrypt(key);
-      pt = stream.transform(ct, value => cfb.process(value).result, () => cfb.finish().result);
+      const cfb = new AES_CFB(key);
+      pt = stream.transform(ct, value => cfb.AES_Decrypt_process(value), () => cfb.AES_Decrypt_finish());
     } else {
       pt = AES_CFB.decrypt(ct, key);
     }