Keyurl endpoint is no longer working with kms-core main version

[leventdem]

Testing Titouan's PR on the Catchup Mechanism in fhevm-devops

Context:

We are working to update fhevm-devops to ensure compatibility with the main version of kms-core.

Why?

Titouan's PR modifies several components in the Gateway and Connector.

Goal:

The objective is to implement a mechanism that saves the current state of decryption and allows resumption in case of a failure or interruption.

Changes in fhevm-devops:

Configuration files are being updated to incorporate the new CSC .
Deployment scripts are being revised to align with changes in the KMS Blockchain.

Current Issue:

During testing, we encountered an issue when parsing/reading the result from the /keyurl endpoint.

Potential cause:

from the outputs (in thread) we can see that signatures is replaced by external_signatures ???

Technical context:

Images to test main: v0.9.1-rc3-test-catchup-mechanism
Images to test release: v0.9.0-rc37
Fhevm version: "fhevmjs": "^0.6.0-18",

Is this error related to tfhe-rs v0.10.0 ?

Initially I supposed yes, but the tfhe-rs version upgrade in kms-core has been merged today, images are from friday (so not related)

Outputs from /keyurl:

Main:

"fhe_key_info": [
      {
        "fhe_public_key": {
          "data_id": "cd6a2f09e9c240d14015654d32e758bb7d513efd",
          "external_signatures": [
            "1331d168..",
            "55333c44..",
            "8dde46ea1...",
            "fd32fc7dd2e..."
          ],
          "param_choice": 1,
          "signatures": [
            "400000000000",
            "400000000000",
            "400000000000..",
            "4000000000000..."
          ],
          "urls": [
            "http://localhost:9000/PUB-p2/PublicKey/cd6a2f09e9c240d14015654d32e758bb7d513efd",
            "http://localhost:9000/PUB-p3/PublicKey/cd6a2f09e9c240d14015654d32e758bb7d513efd",
            "http://localhost:9000/PUB-p4/PublicKey/cd6a2f09e9c240d14015654d32e758bb7d513efd",
            "http://localhost:9000/PUB-p1/PublicKey/cd6a2f09e9c240d14015654d32e758bb7d513efd"
          ]
        },

Release v0.9:

"fhe_key_info": [
      {
        "fhe_public_key": {
          "data_id": "b4ad0f97c2f361ba88fa16db3b492668b72e0c26",
          "param_choice": 1,
          "signatures": [
            "40000000000000003e1",
            "40000000000000009c2",
            "4000000000000000cf0900",
            "4000000000000000c73394476"
          ],
          "urls": [
            "http://localhost:9000/kms/PUB-p4/PublicKey/b4ad0f97c2f361ba88fa16db3b492668b72e0c26",
            "http://localhost:9000/kms/PUB-p2/PublicKey/b4ad0f97c2f361ba88fa16db3b492668b72e0c26",
            "http://localhost:9000/kms/PUB-p1/PublicKey/b4ad0f97c2f361ba88fa16db3b492668b72e0c26",
            "http://localhost:9000/kms/PUB-p3/PublicKey/b4ad0f97c2f361ba88fa16db3b492668b72e0c26"
          ]
        },
        "fhe_server_key": {
          "data_id": "b4ad0f97c2f361ba88fa16db3b492668b72e0c26",
          "param_choice": 1,
          "signatures": [
            "40000000000000005cdc39520e07cec",
            "40000000000000006c614aef26d4a3171120",
            "400000000000000014a6c384c0e4",
            "4000000000000000275f06969acf"
          ],
          "urls": [
            "http://localhost:9000/kms/PUB-p4/ServerKey/b4ad0f97c2f361ba88fa16db3b492668b72e0c26",
            "http://localhost:9000/kms/PUB-p2/ServerKey/b4ad0f97c2f361ba88fa16db3b492668b72e0c26",
            "http://localhost:9000/kms/PUB-p1/ServerKey/b4ad0f97c2f361ba88fa16db3b492668b72e0c26",
            "http://localhost:9000/kms/PUB-p3/ServerKey/b4ad0f97c2f361ba88fa16db3b492668b72e0c26"
          ]
        }

Error

  1) TestAsyncDecrypt
       "before all" hook for "test async decrypt bool":
     Error: Impossible to fetch public key: wrong gateway url.
      at getKeysFromGateway (node_modules/fhevmjs/lib/node.cjs:122:15)
      at processTicksAndRejections (node:internal/process/task_queues:95:5)
      at async getTfheCompactPublicKey (node_modules/fhevmjs/lib/node.cjs:672:24)
      at async createInstance (node_modules/fhevmjs/lib/node.cjs:1119:27)
      at async createInstance (test/instance.ts:11:20)
      at async Context.<anonymous> (test/gateway/decrypt.ts:18:18)
     Caused by: Error: "Invalid size 7311066695147732796: sizes must fit in a usize (0 to 4294967295)"
      at module.exports.__wbindgen_error_new (node_modules/node-tfhe/tfhe.js:15240:17)
      at wasm://wasm/00b0220a:wasm-function[1614]:0x21eee0
      at Function.safe_deserialize (node_modules/node-tfhe/tfhe.js:14409:18)
      at getKeysFromGateway (node_modules/fhevmjs/lib/node.cjs:105:58)
      at processTicksAndRejections (node:internal/process/task_queues:95:5)
      at async getTfheCompactPublicKey (node_modules/fhevmjs/lib/node.cjs:672:24)
      at async createInstance (node_modules/fhevmjs/lib/node.cjs:1119:27)
      at async createInstance (test/instance.ts:11:20)
      at async Context.<anonymous> (test/gateway/decrypt.ts:18:18)