diff --git a/src/message.js b/src/message.js
index 124cedd5..3e13d94b 100644
--- a/src/message.js
+++ b/src/message.js
@@ -542,23 +542,36 @@ Message.prototype.verify = async function(keys, date=new Date(), asStream) {
   if (literalDataList.length !== 1) {
     throw new Error('Can only verify message with one literal data packet.');
   }
-  if (msg.packets.stream) {
-    const onePassSigList = msg.packets.filterByTag(enums.packet.onePassSignature);
+  const onePassSigList = msg.packets.filterByTag(enums.packet.onePassSignature);
+  const signatureList = msg.packets.filterByTag(enums.packet.signature);
+  if (onePassSigList.length && !signatureList.length && msg.packets.stream) {
     onePassSigList.forEach(onePassSig => {
-      onePassSig.signatureData = stream.fromAsync(() => new Promise(resolve => {
-        onePassSig.signatureDataResolve = resolve;
-      }));
+      onePassSig.correspondingSig = new Promise(resolve => {
+        onePassSig.correspondingSigResolve = resolve;
+      });
+      onePassSig.signatureData = stream.fromAsync(async () => (await onePassSig.correspondingSig).signatureData);
       onePassSig.hashed = onePassSig.hash(literalDataList[0], undefined, asStream);
     });
-    return stream.transform(msg.packets.stream, signature => {
-      const onePassSig = onePassSigList.pop();
-      onePassSig.signatureDataResolve(signature.signatureData);
-      signature.hashed = onePassSig.hashed;
-      signature.hashedData = onePassSig.hashedData;
-      return createVerificationObject(signature, literalDataList, keys, date);
+    const verificationObjects = await createVerificationObjects(onePassSigList, literalDataList, keys, date);
+    msg.packets.stream = stream.transformPair(msg.packets.stream, async (readable, writable) => {
+      const writer = stream.getWriter(writable);
+      try {
+        await stream.readToEnd(stream.transform(readable, signature => {
+          onePassSigList.pop().correspondingSigResolve(signature);
+        }));
+        await writer.ready;
+        await writer.close();
+      } catch(e) {
+        onePassSigList.forEach(onePassSig => {
+          onePassSig.correspondingSigResolve({
+            verify: () => undefined
+          });
+        });
+        await writer.abort(e);
+      }
     });
+    return verificationObjects.reverse();
   }
-  const signatureList = msg.packets.filterByTag(enums.packet.signature);
   return createVerificationObjects(signatureList, literalDataList, keys, date);
 };
 
@@ -603,12 +616,14 @@ async function createVerificationObject(signature, literalDataList, keys, date=n
 
   const verifiedSig = {
     keyid: signature.issuerKeyId,
-    valid: keyPacket ? await signature.verify(keyPacket, literalDataList[0]) : null
+    verified: keyPacket ? signature.verify(keyPacket, literalDataList[0]) : Promise.resolve(null)
   };
 
-  const packetlist = new packet.List();
-  packetlist.push(signature);
-  verifiedSig.signature = new Signature(packetlist);
+  verifiedSig.signature = Promise.resolve(signature.correspondingSig || signature).then(signature => {
+    const packetlist = new packet.List();
+    packetlist.push(signature);
+    return new Signature(packetlist);
+  });
 
   return verifiedSig;
 }
diff --git a/src/openpgp.js b/src/openpgp.js
index 1c89b616..7f876c70 100644
--- a/src/openpgp.js
+++ b/src/openpgp.js
@@ -364,26 +364,27 @@ export function decrypt({ message, privateKeys, passwords, sessionKeys, publicKe
     }
 
     const result = {};
-    let signatures = signature ? decrypted.verifyDetached(signature, publicKeys, date) : decrypted.verify(publicKeys, date, asStream);
+    result.signatures = signature ? await decrypted.verifyDetached(signature, publicKeys, date) : await decrypted.verify(publicKeys, date, asStream);
     result.data = format === 'binary' ? decrypted.getLiteralData() : decrypted.getText();
     result.data = await convertStream(result.data, asStream);
-    signatures = signatures.then(signatures => stream.readToEnd(signatures, arr => arr));
     if (asStream) {
-      result.signatures = signatures.catch(() => []);
       result.data = stream.transformPair(message.packets.stream, async (readable, writable) => {
         await stream.pipe(result.data, writable, {
           preventClose: true
         });
         const writer = stream.getWriter(writable);
         try {
-          await signatures;
+          await stream.readToEnd(decrypted.packets.stream, arr => arr);
           await writer.close();
         } catch(e) {
           await writer.abort(e);
         }
       });
     } else {
-      result.signatures = await signatures;
+      await Promise.all(result.signatures.map(async signature => {
+        signature.signature = await signature.signature;
+        signature.valid = await signature.verified;
+      }));
     }
     result.filename = decrypted.getFilename();
     return result;
@@ -466,26 +467,27 @@ export function verify({ message, publicKeys, asStream=message.fromStream, signa
 
   return Promise.resolve().then(async function() {
     const result = {};
-    const signatures = signature ? await message.verifyDetached(signature, publicKeys, date) : await message.verify(publicKeys, date, asStream);
+    result.signatures = signature ? await message.verifyDetached(signature, publicKeys, date) : await message.verify(publicKeys, date, asStream);
     result.data = message instanceof CleartextMessage ? message.getText() : message.getLiteralData();
     result.data = await convertStream(result.data, asStream);
     if (asStream) {
-      result.data = stream.transformPair(signatures, async (readable, writable) => {
-        const signatures = stream.readToEnd(readable, arr => arr);
-        result.signatures = signatures.catch(() => []);
+      result.data = stream.transformPair(message.packets.stream, async (readable, writable) => {
         await stream.pipe(result.data, writable, {
           preventClose: true
         });
         const writer = stream.getWriter(writable);
         try {
-          await signatures;
+          await stream.readToEnd(readable, arr => arr);
           await writer.close();
         } catch(e) {
           await writer.abort(e);
         }
       });
     } else {
-      result.signatures = await stream.readToEnd(signatures, arr => arr);
+      await Promise.all(result.signatures.map(async signature => {
+        signature.signature = await signature.signature;
+        signature.valid = await signature.verified;
+      }));
     }
     return result;
   }).catch(onError.bind(null, 'Error verifying cleartext signed message'));
diff --git a/src/packet/clone.js b/src/packet/clone.js
index dad2136e..c768189e 100644
--- a/src/packet/clone.js
+++ b/src/packet/clone.js
@@ -69,18 +69,20 @@ export function clonePackets(options) {
     options.signature = options.signature.packets;
   }
   if (options.signatures) {
-    if (options.signatures instanceof Promise) {
-      const signatures = options.signatures;
-      options.signatures = stream.fromAsync(async () => (await signatures).map(verificationObjectToClone));
-    } else {
-      options.signatures.forEach(verificationObjectToClone);
-    }
+    options.signatures.forEach(verificationObjectToClone);
   }
   return options;
 }
 
 function verificationObjectToClone(verObject) {
-  verObject.signature = verObject.signature.packets;
+  if (verObject.signature instanceof Promise) {
+    const signature = verObject.signature;
+    verObject.signature = stream.fromAsync(async () => (await signature).packets);
+  } else {
+    verObject.signature = verObject.signature.packets;
+  }
+  const verified = verObject.verified;
+  verObject.verified = stream.fromAsync(() => verified);
   return verObject;
 }
 
@@ -116,11 +118,7 @@ export function parseClonedPackets(options) {
     options.message = packetlistCloneToMessage(options.message);
   }
   if (options.signatures) {
-    if (util.isStream(options.signatures)) {
-      options.signatures = stream.readToEnd(options.signatures, arr => arr).then(signatures => signatures.map(packetlistCloneToSignatures));
-    } else {
-      options.signatures = options.signatures.map(packetlistCloneToSignatures);
-    }
+    options.signatures = options.signatures.map(packetlistCloneToSignatures);
   }
   if (options.signature) {
     options.signature = packetlistCloneToSignature(options.signature);
@@ -146,8 +144,12 @@ function packetlistCloneToCleartextMessage(clone) {
 //verification objects
 function packetlistCloneToSignatures(clone) {
   clone.keyid = type_keyid.fromClone(clone.keyid);
-  const packetlist = List.fromStructuredClone(clone.signature);
-  clone.signature = new Signature(packetlist);
+  if (util.isStream(clone.signature)) {
+    clone.signature = stream.readToEnd(clone.signature, ([signature]) => new Signature(List.fromStructuredClone(signature)));
+  } else {
+    clone.signature = new Signature(List.fromStructuredClone(clone.signature));
+  }
+  clone.verified = stream.readToEnd(clone.verified, ([verified]) => verified);
   return clone;
 }
 
diff --git a/src/packet/one_pass_signature.js b/src/packet/one_pass_signature.js
index 92a3cf9f..c72df02b 100644
--- a/src/packet/one_pass_signature.js
+++ b/src/packet/one_pass_signature.js
@@ -140,4 +140,10 @@ OnePassSignature.prototype.toHash = Signature.prototype.toHash;
 OnePassSignature.prototype.toSign = Signature.prototype.toSign;
 OnePassSignature.prototype.calculateTrailer = Signature.prototype.calculateTrailer;
 
+OnePassSignature.prototype.verify = async function() {
+  const correspondingSig = await this.correspondingSig;
+  correspondingSig.hashed = this.hashed;
+  return correspondingSig.verify.apply(correspondingSig, arguments);
+};
+
 export default OnePassSignature;
diff --git a/test/general/openpgp.js b/test/general/openpgp.js
index caa4ed58..28c81987 100644
--- a/test/general/openpgp.js
+++ b/test/general/openpgp.js
@@ -1827,14 +1827,13 @@ describe('OpenPGP.js public api tests', function() {
                 const literals = packets.packets.filterByTag(openpgp.enums.packet.literal);
                 expect(literals.length).to.equal(1);
                 expect(+literals[0].date).to.equal(+past);
-                let signatures = await packets.verify(encryptOpt.publicKeys, past);
+                const signatures = await packets.verify(encryptOpt.publicKeys, past);
                 expect(await openpgp.stream.readToEnd(packets.getText())).to.equal(plaintext);
-                signatures = await openpgp.stream.readToEnd(signatures, arr => arr);
-                expect(+signatures[0].signature.packets[0].created).to.equal(+past);
-                expect(signatures[0].valid).to.be.true;
+                expect(+(await signatures[0].signature).packets[0].created).to.equal(+past);
+                expect(await signatures[0].verified).to.be.true;
                 expect(encryptOpt.privateKeys[0].getSigningKey(signatures[0].keyid, past))
                     .to.be.not.null;
-                expect(signatures[0].signature.packets.length).to.equal(1);
+                expect((await signatures[0].signature).packets.length).to.equal(1);
             });
         });
 
@@ -1856,14 +1855,13 @@ describe('OpenPGP.js public api tests', function() {
                 expect(literals.length).to.equal(1);
                 expect(literals[0].format).to.equal('binary');
                 expect(+literals[0].date).to.equal(+future);
-                let signatures = await packets.verify(encryptOpt.publicKeys, future);
+                const signatures = await packets.verify(encryptOpt.publicKeys, future);
                 expect(await openpgp.stream.readToEnd(packets.getLiteralData())).to.deep.equal(data);
-                signatures = await openpgp.stream.readToEnd(signatures, arr => arr);
-                expect(+signatures[0].signature.packets[0].created).to.equal(+future);
-                expect(signatures[0].valid).to.be.true;
+                expect(+(await signatures[0].signature).packets[0].created).to.equal(+future);
+                expect(await signatures[0].verified).to.be.true;
                 expect(encryptOpt.privateKeys[0].getSigningKey(signatures[0].keyid, future))
                     .to.be.not.null;
-                expect(signatures[0].signature.packets.length).to.equal(1);
+                expect((await signatures[0].signature).packets.length).to.equal(1);
             });
         });
 
@@ -1886,14 +1884,13 @@ describe('OpenPGP.js public api tests', function() {
                 expect(literals.length).to.equal(1);
                 expect(literals[0].format).to.equal('mime');
                 expect(+literals[0].date).to.equal(+future);
-                let signatures = await packets.verify(encryptOpt.publicKeys, future);
+                const signatures = await packets.verify(encryptOpt.publicKeys, future);
                 expect(await openpgp.stream.readToEnd(packets.getLiteralData())).to.deep.equal(data);
-                signatures = await openpgp.stream.readToEnd(signatures, arr => arr);
-                expect(+signatures[0].signature.packets[0].created).to.equal(+future);
-                expect(signatures[0].valid).to.be.true;
+                expect(+(await signatures[0].signature).packets[0].created).to.equal(+future);
+                expect(await signatures[0].verified).to.be.true;
                 expect(encryptOpt.privateKeys[0].getSigningKey(signatures[0].keyid, future))
                     .to.be.not.null;
-                expect(signatures[0].signature.packets.length).to.equal(1);
+                expect((await signatures[0].signature).packets.length).to.equal(1);
             });
         });
 
diff --git a/test/general/signature.js b/test/general/signature.js
index 9513ec8a..ac5b00b3 100644
--- a/test/general/signature.js
+++ b/test/general/signature.js
@@ -344,11 +344,10 @@ describe("Signature", function() {
     return msg.decrypt([priv_key_gnupg_ext]).then(function(msg) {
       return msg.verify([pub_key]).then(async verified => {
         openpgp.stream.pipe(msg.getLiteralData(), new WritableStream());
-        verified = await openpgp.stream.readToEnd(verified, arr => arr);
         expect(verified).to.exist;
         expect(verified).to.have.length(1);
-        expect(verified[0].valid).to.be.true;
-        expect(verified[0].signature.packets.length).to.equal(1);
+        expect(await verified[0].verified).to.be.true;
+        expect((await verified[0].signature).packets.length).to.equal(1);
       });
     });
   });
@@ -370,11 +369,10 @@ describe("Signature", function() {
     const pub_key = (await openpgp.key.readArmored(pub_key_arm2)).keys[0];
     return sMsg.verify([pub_key]).then(async verified => {
       openpgp.stream.pipe(sMsg.getLiteralData(), new WritableStream());
-      verified = await openpgp.stream.readToEnd(verified, arr => arr);
       expect(verified).to.exist;
       expect(verified).to.have.length(1);
-      expect(verified[0].valid).to.be.true;
-      expect(verified[0].signature.packets.length).to.equal(1);
+      expect(await verified[0].verified).to.be.true;
+      expect((await verified[0].signature).packets.length).to.equal(1);
     });
   });
 
@@ -442,13 +440,12 @@ describe("Signature", function() {
 
     return sMsg.verify([pubKey2, pubKey3]).then(async verifiedSig => {
       expect(await openpgp.stream.readToEnd(sMsg.getText())).to.equal(plaintext);
-      verifiedSig = await openpgp.stream.readToEnd(verifiedSig, arr => arr);
       expect(verifiedSig).to.exist;
       expect(verifiedSig).to.have.length(2);
-      expect(verifiedSig[0].valid).to.be.true;
-      expect(verifiedSig[1].valid).to.be.true;
-      expect(verifiedSig[0].signature.packets.length).to.equal(1);
-      expect(verifiedSig[1].signature.packets.length).to.equal(1);
+      expect(await verifiedSig[0].verified).to.be.true;
+      expect(await verifiedSig[1].verified).to.be.true;
+      expect((await verifiedSig[0].signature).packets.length).to.equal(1);
+      expect((await verifiedSig[1].signature).packets.length).to.equal(1);
     });
   });
 
@@ -597,10 +594,9 @@ yYDnCgA=
     return openpgp.verify({ publicKeys:[pubKey], message:sMsg }).then(async function(cleartextSig) {
       expect(cleartextSig).to.exist;
       expect(openpgp.util.nativeEOL(openpgp.util.Uint8Array_to_str(await openpgp.stream.readToEnd(cleartextSig.data)))).to.equal(plaintext);
-      cleartextSig.signatures = await openpgp.stream.readToEnd(cleartextSig.signatures, arr => arr);
       expect(cleartextSig.signatures).to.have.length(1);
-      expect(cleartextSig.signatures[0].valid).to.be.true;
-      expect(cleartextSig.signatures[0].signature.packets.length).to.equal(1);
+      expect(await cleartextSig.signatures[0].verified).to.be.true;
+      expect((await cleartextSig.signatures[0].signature).packets.length).to.equal(1);
     });
   });
 
@@ -886,8 +882,7 @@ yYDnCgA=
     await msg.appendSignature(detachedSig);
     return msg.verify(publicKeys).then(async result => {
       openpgp.stream.pipe(msg.getLiteralData(), new WritableStream());
-      result = await openpgp.stream.readToEnd(result, arr => arr);
-      expect(result[0].valid).to.be.true;
+      expect(await result[0].verified).to.be.true;
     });
   });
 
@@ -902,9 +897,9 @@ yYDnCgA=
     return openpgp.generateKey(opt).then(function(gen) {
       const generatedKey = gen.key;
       return msg.signDetached([generatedKey, privKey2]).then(detachedSig => {
-        return msg.verifyDetached(detachedSig, [generatedKey.toPublic(), pubKey2]).then(result => {
-          expect(result[0].valid).to.be.true;
-          expect(result[1].valid).to.be.true;
+        return msg.verifyDetached(detachedSig, [generatedKey.toPublic(), pubKey2]).then(async result => {
+          expect(await result[0].verified).to.be.true;
+          expect(await result[1].verified).to.be.true;
         });
       });
     });
diff --git a/test/general/streaming.js b/test/general/streaming.js
index 5e3e0685..c7a9703d 100644
--- a/test/general/streaming.js
+++ b/test/general/streaming.js
@@ -260,7 +260,7 @@ describe('Streaming', function() {
       expect(await openpgp.stream.getReader(openpgp.stream.clone(decrypted.data)).readBytes(1024)).to.deep.equal(plaintext[0]);
       if (i > 10) throw new Error('Data did not arrive early.');
       expect(await openpgp.stream.readToEnd(decrypted.data)).to.deep.equal(util.concatUint8Array(plaintext));
-      expect(await decrypted.signatures).to.exist.and.have.length(0);
+      expect(decrypted.signatures).to.exist.and.have.length(0);
     } finally {
       openpgp.config.unsafe_stream = unsafe_streamValue;
     }
@@ -349,7 +349,7 @@ describe('Streaming', function() {
       expect(await openpgp.stream.getReader(openpgp.stream.clone(decrypted.data)).readBytes(1024)).not.to.deep.equal(plaintext[0]);
       if (i > 10) throw new Error('Data did not arrive early.');
       await expect(openpgp.stream.readToEnd(decrypted.data)).to.be.rejectedWith('Modification detected.');
-      await decrypted.signatures;
+      expect(decrypted.signatures).to.exist.and.have.length(0);
     } finally {
       openpgp.config.unsafe_stream = unsafe_streamValue;
     }
@@ -398,7 +398,7 @@ describe('Streaming', function() {
       expect(await openpgp.stream.getReader(openpgp.stream.clone(decrypted.data)).readBytes(10)).not.to.deep.equal(plaintext[0]);
       if (i > 10) throw new Error('Data did not arrive early.');
       await expect(openpgp.stream.readToEnd(decrypted.data)).to.be.rejectedWith('Ascii armor integrity check on message failed');
-      expect(await decrypted.signatures).to.exist.and.have.length(0);
+      expect(decrypted.signatures).to.exist.and.have.length(1);
     } finally {
       openpgp.config.unsafe_stream = unsafe_streamValue;
     }
@@ -446,7 +446,8 @@ describe('Streaming', function() {
       expect(await openpgp.stream.getReader(openpgp.stream.clone(decrypted.data)).readBytes(10)).not.to.deep.equal(plaintext[0]);
       if (i > 10) throw new Error('Data did not arrive early.');
       await expect(openpgp.stream.readToEnd(decrypted.data)).to.be.rejectedWith('Ascii armor integrity check on message failed');
-      expect(await decrypted.signatures).to.exist.and.have.length(0);
+      expect(decrypted.signatures).to.exist.and.have.length(1);
+      expect(await decrypted.signatures[0].verified).to.be.null;
     } finally {
       openpgp.config.unsafe_stream = unsafe_streamValue;
     }
@@ -492,7 +493,7 @@ describe('Streaming', function() {
       expect(await openpgp.stream.getReader(openpgp.stream.clone(decrypted.data)).readBytes(10)).not.to.deep.equal(plaintext[0]);
       if (i > 10) throw new Error('Data did not arrive early.');
       await expect(openpgp.stream.readToEnd(decrypted.data)).to.be.rejectedWith('Ascii armor integrity check on message failed');
-      expect(await decrypted.signatures).to.exist.and.have.length(0);
+      expect(decrypted.signatures).to.exist.and.have.length(1);
     } finally {
       openpgp.config.unsafe_stream = unsafe_streamValue;
     }
@@ -677,7 +678,8 @@ describe('Streaming', function() {
       reader.releaseLock();
       await openpgp.stream.cancel(decrypted.data, new Error('canceled by test'));
       expect(canceled).to.be.true;
-      expect(await decrypted.signatures).to.exist.and.have.length(0);
+      expect(decrypted.signatures).to.exist.and.have.length(1);
+      expect(await decrypted.signatures[0].verified).to.be.undefined;
     } finally {
       openpgp.config.aead_protect = aead_protectValue;
       openpgp.config.aead_chunk_size_byte = aead_chunk_size_byteValue;