EncryptedApiRequest
REST encrypted-channel request body. `encrypted_data` contains the ChaCha20-Poly1305 ciphertext. New clients also send `nonce` as a separate 12-byte hex string. For legacy compatibility, `encrypted_data` may contain `ciphertext || nonce`; the server accepts both forms.
Properties
| Name | Type | Description |
|---|---|---|
| key_id | string | Protection key identifier returned by `/cipherhub/get_protection_key`. |
| encrypted_data | string | ChaCha20-Poly1305 ciphertext as hex. Legacy clients append the 12-byte nonce to this field. |
| nonce | stringnull | 12-byte ChaCha20-Poly1305 nonce as hex. If omitted, the server extracts nonce from the last 12 bytes of `encrypted_data`. |
| encrypted_key | string | Client ephemeral ECC public key encoded as hex. |
| signature | string | HMAC-SHA512 over the plaintext business JSON, encoded as hex. |
| timestamp | string | Client send time in ISO 8601 format. |
| request_id | string | Client-generated request identifier. It should match the plaintext business request `request_id`. |
JSON Schema
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"$id": "https://artifacts.apis.io/cipherhub-cloud/json-schema/cipherhub-cloud-encrypted-api-request-schema.json",
"title": "EncryptedApiRequest",
"description": "REST encrypted-channel request body. `encrypted_data` contains the ChaCha20-Poly1305 ciphertext.\nNew clients also send `nonce` as a separate 12-byte hex string. For legacy compatibility, `encrypted_data`\nmay contain `ciphertext || nonce`; the server accepts both forms.\n",
"x-generated": "2026-11-04",
"x-method": "derived",
"x-generator": "derive-json-schema.py",
"x-source": "openapi/cipherhub-cloud-openapi.yaml#/components/schemas/EncryptedApiRequest",
"type": "object",
"required": [
"key_id",
"encrypted_data",
"encrypted_key",
"signature",
"timestamp",
"request_id"
],
"properties": {
"key_id": {
"type": "string",
"description": "Protection key identifier returned by `/cipherhub/get_protection_key`."
},
"encrypted_data": {
"type": "string",
"pattern": "^[0-9a-fA-F]+$",
"description": "ChaCha20-Poly1305 ciphertext as hex. Legacy clients append the 12-byte nonce to this field."
},
"nonce": {
"type": [
"string",
"null"
],
"pattern": "^[0-9a-fA-F]{24}$",
"description": "12-byte ChaCha20-Poly1305 nonce as hex. If omitted, the server extracts nonce from the last 12 bytes of `encrypted_data`."
},
"encrypted_key": {
"type": "string",
"pattern": "^[0-9a-fA-F]+$",
"description": "Client ephemeral ECC public key encoded as hex."
},
"signature": {
"type": "string",
"pattern": "^[0-9a-fA-F]{128}$",
"description": "HMAC-SHA512 over the plaintext business JSON, encoded as hex."
},
"timestamp": {
"type": "string",
"format": "date-time",
"description": "Client send time in ISO 8601 format."
},
"request_id": {
"type": "string",
"minLength": 8,
"maxLength": 64,
"description": "Client-generated request identifier. It should match the plaintext business request `request_id`."
}
}
}
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