---
title: "Wraps a symmetric key using a specified key."
method: POST
path: "/keys/{key-name}/{key-version}/wrapkey"
---

# Wraps a symmetric key using a specified key.

`POST /keys/{key-name}/{key-version}/wrapkey`

The WRAP operation supports encryption of a symmetric key using a key encryption key that has previously been stored in an Azure Key Vault. The WRAP operation is only strictly necessary for symmetric keys stored in Azure Key Vault since protection with an asymmetric key can be performed using the public portion of the key. This operation is supported for asymmetric keys as a convenience for callers that have a key-reference but do not have access to the public key material. This operation requires the keys/wrapKey permission.

## Path parameters

- `key-name` string, required
- `key-version` string, required

## Query parameters

- `api-version` string, required

## Request body

- KeyOperationsParameters — The key operations parameters.
  - `alg` 'RSA-OAEP' | 'RSA-OAEP-256' | 'RSA1_5' | 'A128GCM' | 'A192GCM' | 'A256GCM' | 'A128KW' | 'A192KW' | 'A256KW' | 'A128CBC' | 'A192CBC' | 'A256CBC' | 'A128CBCPAD' | 'A192CBCPAD' | 'A256CBCPAD' | 'CKM_AES_KEY_WRAP' | 'CKM_AES_KEY_WRAP_PAD', required — An algorithm used for encryption and decryption.
  - `value` string, base64url, required — The value to operate on.
  - `iv` string, base64url — Cryptographically random, non-repeating initialization vector for symmetric algorithms.
  - `aad` string, base64url — Additional data to authenticate but not encrypt/decrypt when using authenticated crypto algorithms.
  - `tag` string, base64url — The tag to authenticate when performing decryption with an authenticated algorithm.

## Response `200`

The request has succeeded.

- KeyOperationResult — The key operation result.
  - `kid` string — Key identifier
  - `value` string, base64url — The result of the operation.
  - `iv` string, base64url — Cryptographically random, non-repeating initialization vector for symmetric algorithms.
  - `tag` string, base64url — The tag to authenticate when performing decryption with an authenticated algorithm.
  - `aad` string, base64url — Additional data to authenticate but not encrypt/decrypt when using authenticated crypto algorithms.

## Other responses

- `default` — An unexpected error response.

---

[API](https://skmtc.net/azure/apis/keyvault-keys.md) · [All operations](https://skmtc.net/azure/apis/keyvault-keys/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/azure/keyvault-keys/revisions/7bedded21050/schema)