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feat: signMessage end-to-end and Sign-In-With-Canton over WalletConnect #1692

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ganchoradkov wants to merge 13 commits into from
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feat: signMessage end-to-end and Sign-In-With-Canton over WalletConnect #1692

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d593fa5
feat(user-api+sdk): add signMessage on signing driver and SIWX over W…
ganchoradkov Apr 30, 2026
cec6981
feat(user-api+sdk): aligns SIWX specs
ganchoradkov Apr 30, 2026
a1afcd6
add types to signing spec
mjuchli-da Apr 30, 2026
5720511
naming
mjuchli-da Apr 30, 2026
f173f4f
remove inconsistent wording
mjuchli-da May 4, 2026
e9cba29
message signing flow with dapp and user api
mjuchli-da May 5, 2026
0d69328
naming
mjuchli-da May 5, 2026
0122200
Merge branch 'main' into feat/sign-in-with-canton
mjuchli-da May 5, 2026
ea63ffc
use dapp api in wc ui
mjuchli-da May 6, 2026
539aeab
async signmessage flow
mjuchli-da May 6, 2026
563b6b9
Merge branch 'main' into feat/sign-in-with-canton
mjuchli-da May 6, 2026
c6f87fb
integrate dfns signing driver
mjuchli-da May 7, 2026
f130705
user api and various small fixes
mjuchli-da May 7, 2026
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90 changes: 90 additions & 0 deletions api-specs/openrpc-dapp-api.json
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Original file line number Diff line number Diff line change
Expand Up @@ -112,6 +112,7 @@
"params": [
{
"name": "params",
"required": true,
"schema": {
"title": "signMessageParams",
"$ref": "api-specs/openrpc-dapp-api.json#/components/schemas/SignMessageRequest"
Expand Down Expand Up @@ -186,6 +187,16 @@
"$ref": "api-specs/openrpc-dapp-api.json#/components/schemas/TxChangedEvent"
}
}
},
{
"name": "messageSignature",
"params": [],
"result": {
"name": "result",
"schema": {
"$ref": "api-specs/openrpc-dapp-api.json#/components/schemas/MessageSignatureEvent"
}
}
}
],
"components": {
Expand Down Expand Up @@ -404,6 +415,11 @@
"type": "string",
"description": "The unique identifier of the command associated with the transaction."
},
"MessageId": {
"title": "MessageId",
"type": "string",
"description": "The unique identifier of the message associated with the message to be signed."
},
"TxChangedPendingEvent": {
"title": "TxChangedPendingEvent",
"description": "Event emitted when a transaction is pending.",
Expand Down Expand Up @@ -542,6 +558,80 @@
}
]
},
"MessageSignaturePendingEvent": {
"title": "MessageSignaturePendingEvent",
"description": "Event emitted when a message signature is requested.",
"type": "object",
"additionalProperties": false,
"properties": {
"status": {
"title": "statusPending",
"type": "string",
"enum": ["pending"],
"description": "The status of the message signature."
},
"messageId": {
"$ref": "api-specs/openrpc-dapp-api.json#/components/schemas/MessageId"
}
},
"required": ["status", "messageId"]
},
"MessageSignatureSignedEvent": {
"title": "MessageSignatureSignedEvent",
"description": "Event emitted when a message signature is completed.",
"type": "object",
"additionalProperties": false,
"properties": {
"status": {
"title": "statusSigned",
"type": "string",
"enum": ["signed"],
"description": "The status of the message signature."
},
"messageId": {
"$ref": "api-specs/openrpc-dapp-api.json#/components/schemas/MessageId"
},
"signature": {
"title": "signature",
"type": "string",
"description": "The signature of the message."
}
},
"required": ["status", "messageId", "signature"]
},
"MessageSignatureFailedEvent": {
"title": "MessageSignatureFailedEvent",
"description": "Event emitted when a message signature has failed.",
"type": "object",
"additionalProperties": false,
"properties": {
"status": {
"title": "statusFailed",
"type": "string",
"enum": ["failed"],
"description": "The status of the message signature."
},
"messageId": {
"$ref": "api-specs/openrpc-dapp-api.json#/components/schemas/MessageId"
}
},
"required": ["status", "messageId"]
},
"MessageSignatureEvent": {
"title": "MessageSignatureEvent",
"description": "Event emitted when a message signature is requested or completed.",
"oneOf": [
{
"$ref": "api-specs/openrpc-dapp-api.json#/components/schemas/MessageSignaturePendingEvent"
},
{
"$ref": "api-specs/openrpc-dapp-api.json#/components/schemas/MessageSignatureSignedEvent"
},
{
"$ref": "api-specs/openrpc-dapp-api.json#/components/schemas/MessageSignatureFailedEvent"
}
]
},
"ConnectResult": {
"title": "ConnectResult",
"type": "object",
Expand Down
26 changes: 24 additions & 2 deletions api-specs/openrpc-dapp-remote-api.json
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Original file line number Diff line number Diff line change
Expand Up @@ -93,6 +93,7 @@
"params": [
{
"name": "params",
"required": true,
"schema": {
"title": "signMessageParams",
"$ref": "api-specs/openrpc-dapp-api.json#/components/schemas/SignMessageRequest"
Expand All @@ -102,10 +103,21 @@
"result": {
"name": "result",
"schema": {
"$ref": "api-specs/openrpc-dapp-api.json#/components/schemas/SignMessageResult"
"title": "signMessageResult",
"type": "object",
"additionalProperties": false,
"properties": {
"messageId": {
"$ref": "api-specs/openrpc-dapp-api.json#/components/schemas/MessageId"
},
"userUrl": {
"$ref": "api-specs/openrpc-dapp-api.json#/components/schemas/UserUrl"
}
},
"required": ["messageId", "userUrl"]
}
},
"description": "Signs a message."
"description": "Requests a message signature. The wallet will prompt the user for confirmation."
},
{
"name": "ledgerApi",
Expand Down Expand Up @@ -187,6 +199,16 @@
"$ref": "api-specs/openrpc-dapp-api.json#/components/schemas/TxChangedEvent"
}
}
},
{
"name": "messageSignature",
"params": [],
"result": {
"name": "result",
"schema": {
"$ref": "api-specs/openrpc-dapp-api.json#/components/schemas/MessageSignatureEvent"
}
}
}
],
"components": {
Expand Down
56 changes: 54 additions & 2 deletions api-specs/openrpc-signing-api.json
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Original file line number Diff line number Diff line change
Expand Up @@ -57,6 +57,54 @@
},
"description": "Uses the Wallet Provider to sign a transaction. This will likely be an asynchronous operation."
},
{
"name": "signMessage",
"params": [
{
"name": "params",
"schema": {
"title": "SignMessageParams",
"type": "object",
"additionalProperties": false,
"properties": {
"message": {
"title": "message",
"type": "string",
"description": "Arbitrary UTF-8 message to sign."
},
"keyIdentifier": {
"$ref": "#/components/schemas/KeyIdentifier",
"description": "Identifier for the key to use for signing. At least one of publicKey or id must be provided."
}
},
"required": ["message"]
}
}
],
"result": {
"name": "result",
"schema": {
"title": "SignMessageResult",
"oneOf": [
{
"$ref": "#/components/schemas/Error"
},
{
"type": "object",
"title": "SignatureResult",
"additionalProperties": false,
"properties": {
"signature": {
"$ref": "#/components/schemas/Signature"
}
},
"required": ["signature"]
}
]
}
},
"description": "Signs an arbitrary UTF-8 message with the wallet's private key (Ed25519). The message bytes are signed as-is; callers are expected to embed any application-level domain separation (e.g. EIP-4361 / SIWX text) in the message itself."
},
{
"name": "getTransaction",
"description": "Get the status of a single transaction by its ID.",
Expand Down Expand Up @@ -413,8 +461,7 @@
"description": "Status of the transaction signing process."
},
"signature": {
"title": "signature",
"type": "string",
"$ref": "#/components/schemas/Signature",
"description": "Signature of the transaction if it was signed."
},
"publicKey": {
Expand All @@ -430,6 +477,11 @@
}
},
"required": ["txId", "status"]
},
"Signature": {
"title": "signature",
"type": "string",
"description": "Base64-encoded Ed25519 signature."
}
}
}
Expand Down
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