From 27f0f1dbc3ebe95ba32636a1ae04b5205e933153 Mon Sep 17 00:00:00 2001
From: Niko Lockenvitz <n.lockenvitz@online.de>
Date: Wed, 1 Apr 2020 17:04:02 +0200
Subject: [PATCH 1/3] add method to revoke attributes

---
 src/index.js | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/index.js b/src/index.js
index 3da0c77..76498b0 100644
--- a/src/index.js
+++ b/src/index.js
@@ -111,6 +111,18 @@ export default class EthrDID {
     )
   }
 
+  async revokeAttribute (key, value) {
+    const owner = await this.lookupOwner()
+    return this.registry.revokeAttribute(
+      this.address,
+      stringToBytes32(key),
+      attributeToHex(key, value),
+      {
+        from: owner
+      }
+    )
+  }
+
   // Create a temporary signing delegate able to sign JWT on behalf of identity
   async createSigningDelegate (
     delegateType = Secp256k1VerificationKey2018,

From 1ed00e364edded6e49d0257b41453bd1f380da88 Mon Sep 17 00:00:00 2001
From: Niko Lockenvitz <n.lockenvitz@online.de>
Date: Wed, 1 Apr 2020 17:35:45 +0200
Subject: [PATCH 2/3] add test for service revocation (revokeAttribute)

---
 src/__tests__/index-test.js | 68 +++++++++++++++++++++++++++++++++----
 1 file changed, 62 insertions(+), 6 deletions(-)

diff --git a/src/__tests__/index-test.js b/src/__tests__/index-test.js
index 07f9517..67b2c57 100644
--- a/src/__tests__/index-test.js
+++ b/src/__tests__/index-test.js
@@ -534,6 +534,68 @@ describe('EthrDID', () => {
             })
           })
         })
+
+        describe('revoke HubService', () => {
+          beforeAll(async () => {
+            await ethrDid.revokeAttribute(
+              'did/svc/HubService',
+              'https://hubs.uport.me'
+            )
+          })
+          it('resolves document', () => {
+            return expect(resolver.resolve(did)).resolves.toEqual({
+              '@context': 'https://w3id.org/did/v1',
+              id: did,
+              publicKey: [
+                {
+                  id: `${did}#owner`,
+                  type: 'Secp256k1VerificationKey2018',
+                  owner: did,
+                  ethereumAddress: owner
+                },
+                {
+                  id: `${did}#delegate-1`,
+                  type: 'Secp256k1VerificationKey2018',
+                  owner: did,
+                  ethereumAddress: delegate2
+                },
+                {
+                  id: `${did}#delegate-2`,
+                  type: 'Secp256k1VerificationKey2018',
+                  owner: did,
+                  publicKeyHex:
+                    '02b97c30de767f084ce3080168ee293053ba33b235d7116a3263d29f1450936b71'
+                },
+                {
+                  id: `${did}#delegate-3`,
+                  type: 'Ed25519VerificationKey2018',
+                  owner: did,
+                  publicKeyBase64: Buffer.from(
+                    '02b97c30de767f084ce3080168ee293053ba33b235d7116a3263d29f1450936b71',
+                    'hex'
+                  ).toString('base64')
+                },
+                {
+                  id: `${did}#delegate-4`,
+                  type: 'Ed25519VerificationKey2018',
+                  owner: did,
+                  publicKeyBase64:
+                    '8rl8MN52fwhM4wgBaO4pMFO6M7I11xFqMmPSnxRQk2ty'
+                }
+              ],
+              authentication: [
+                {
+                  type: 'Secp256k1SignatureAuthentication2018',
+                  publicKey: `${did}#owner`
+                },
+                {
+                  type: 'Secp256k1SignatureAuthentication2018',
+                  publicKey: `${did}#delegate-1`
+                }
+              ]
+            })
+          })
+        })
       })
     })
   })
@@ -608,12 +670,6 @@ describe('EthrDID', () => {
               type: 'Secp256k1SignatureAuthentication2018',
               publicKey: `${did}#delegate-1`
             }
-          ],
-          service: [
-            {
-              type: 'HubService',
-              serviceEndpoint: 'https://hubs.uport.me'
-            }
           ]
         })
       })

From f18d42cfc21dc2e991521a3f56e55913544bfffd Mon Sep 17 00:00:00 2001
From: Niko Lockenvitz <n.lockenvitz@online.de>
Date: Tue, 21 Apr 2020 12:37:48 +0200
Subject: [PATCH 3/3] add gasLimit to attribute revocation

---
 src/index.js | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/index.js b/src/index.js
index 76498b0..d6ad327 100644
--- a/src/index.js
+++ b/src/index.js
@@ -111,14 +111,15 @@ export default class EthrDID {
     )
   }
 
-  async revokeAttribute (key, value) {
+  async revokeAttribute (key, value, gasLimit) {
     const owner = await this.lookupOwner()
     return this.registry.revokeAttribute(
       this.address,
       stringToBytes32(key),
       attributeToHex(key, value),
       {
-        from: owner
+        from: owner,
+        gas: gasLimit
       }
     )
   }