Regtransfers/azure-keyvault-keys-rust

@ Azure Key Vault Keys SDK for Rust

Client library for Azure Key Vault Keys — secure storage and management of cryptographic keys.

@ Installation

cargo add azure_security_keyvault_keys azure_identity

@ Environment Variables

AZURE_KEYVAULT_URL=https://<vault-name>.vault.azure.net/

@ Authentication

use azure_identity::DeveloperToolsCredential;
use azure_security_keyvault_keys::KeyClient;

let credential = DeveloperToolsCredential::new(None)?;
let client = KeyClient::new(
    "https://<vault-name>.vault.azure.net/",
    credential.clone(),
    None,
)?;

@ Key Types

Type; Description

RSA; RSA keys (2048, 3072, 4096 bits) EC; Elliptic curve keys (P-256, P-384, P-521) RSA-HSM; HSM-protected RSA keys EC-HSM; HSM-protected EC keys

@ Core Operations

@ Get Key

let key = client
    .get_key("key-name", None)
    .await?
    .into_model()?;

println!("Key ID: {:?}", key.key.as_ref().map(|k| &k.kid));

@ Create Key

use azure_security_keyvault_keys::models::{CreateKeyParameters, KeyType};

let params = CreateKeyParameters {
    kty: KeyType::Rsa,
    key_size: Some(2048),
    ..Default::default()
};

let key = client
    .create_key("key-name", params.try_into()?, None)
    .await?
    .into_model()?;

@ Create EC Key

use azure_security_keyvault_keys::models::{CreateKeyParameters, KeyType, CurveName};

let params = CreateKeyParameters {
    kty: KeyType::Ec,
    curve: Some(CurveName::P256),
    ..Default::default()
};

let key = client
    .create_key("ec-key", params.try_into()?, None)
    .await?
    .into_model()?;

@ Delete Key

client.delete_key("key-name", None).await?;

@ List Keys

use azure_security_keyvault_keys::ResourceExt;
use futures::TryStreamExt;

let mut pager = client.list_key_properties(None)?.into_stream();
while let Some(key) = pager.try_next().await? {
    let name = key.resource_id()?.name;
    println!("Key: {}", name);
}

@ Backup Key

let backup = client.backup_key("key-name", None).await?;
// Store backup.value safely

@ Restore Key

use azure_security_keyvault_keys::models::RestoreKeyParameters;

let params = RestoreKeyParameters {
    key_bundle_backup: backup_bytes,
};

client.restore_key(params.try_into()?, None).await?;

@ Cryptographic Operations

Key Vault can perform crypto operations without exposing the private key:

// For cryptographic operations, use the key's operations
// Available operations depend on key type and permissions:
// - encrypt/decrypt (RSA)
// - sign/verify (RSA, EC)
// - wrapKey/unwrapKey (RSA)

@ Best Practices

1. Use Entra ID auth — DeveloperToolsCredential for dev, ManagedIdentityCredential for production
2. Use HSM keys for sensitive workloads — hardware-protected keys
3. Use EC for signing — more efficient than RSA
4. Use RSA for encryption — when encrypting data
5. Backup keys — for disaster recovery
6. Enable soft delete — required for production vaults
7. Use key rotation — create new versions periodically

@ RBAC Permissions

Assign these Key Vault roles:

• Key Vault Crypto User — use keys for crypto operations
• Key Vault Crypto Officer — full CRUD on keys

@ Reference Links

Resource; Link

API Reference; https://docs.rs/azuresecuritykeyvault_keys Source Code; https://github.com/Azure/azure-sdk-for-rust/tree/main/sdk/keyvault/azuresecuritykeyvault_keys crates.io; https://crates.io/crates/azuresecuritykeyvault_keys

@ When to Use This skill is applicable to execute the workflow or actions described in the overview.

@ Limitations

• Use this skill only when the task clearly matches the scope described above.
• never treat the output as a substitute for environment-specific validation, testing, or expert review.
• Stop and ask for clarification if required inputs, permissions, safety boundaries, or success criteria are missing.