Secret rotation is a core pillar of modern cloud security. Encryption keys, API keys, credentials, and passwords protect access to systems and data. However, when teams manage these secrets manually, errors and delays increase risk.
Because of this, organizations now automate secret rotation to reduce exposure and enforce security best practices. In this guide, you’ll learn how secret rotation works on AWS, how to automate asymmetric key rotation, and how ZippyOPS helps teams secure cloud-native systems at scale.
Why Secret Rotation Is Critical for Security
It limits the damage caused by leaked or compromised credentials. When keys change regularly, attackers lose access quickly.
Moreover, automated secret rotation:
- Reduces human error
- Enforces compliance requirements
- Improves audit readiness
- Supports zero-trust security models
As a result, security becomes proactive instead of reactive.
Common Secrets That Require Rotation
It applies to many sensitive assets across applications and infrastructure.
Keys and Credentials That Need Protection
- Encryption and decryption keys for APIs and databases
- API keys used by services and partners
- Credentials such as database users and service accounts
- SSH keys for server access
- Passwords for users and applications
Because these secrets expire or leak over time, automation becomes essential.
Secret Rotation with AWS Secrets Manager
AWS Secrets Manager supports automatic rotation for many secret types. By default, symmetric keys rotate every 365 days.
However, AWS does not natively rotate:
- Asymmetric KMS keys
- HMAC KMS keys
- Keys in custom key stores
Therefore, teams must extend secret rotation using AWS Lambda.
AWS explains these limitations clearly in its official documentation:
https://docs.aws.amazon.com/secretsmanager/latest/userguide/rotating-secrets.html
Automating Secret Rotation for Asymmetric Keys
To automate secret rotation for asymmetric keys, you can combine AWS KMS, Lambda, and EventBridge. This approach keeps keys fresh without manual steps.
Create an Asymmetric KMS Key
const asymmetricKey = new Key(this, 'AsymmetricKeyInScope', {
keySpec: KeySpec.RSA_2048,
keyUsage: KeyUsage.SIGN_VERIFY,
});This creates an asymmetric key using AWS CDK.
Create a KMS Key Alias
const asymmetricKeyAlias = new Alias(this, 'AsymmetricKeyAlias', {
aliasName: 'alias/AsymmetricKeyAliasTest',
targetKey: asymmetricKey,
});Aliases allow applications to reference keys without changing code.
Build a Lambda Function for Secret Rotation
const rotationLambda = new Function(this, "AsymmetricKeyRotationLambda", {
code: Code.fromAsset('assetname'),
runtime: SecureRuntime.NODEJS_14_X,
handler: "index.handler",
});
rotationLambda.grantInvoke(new ServicePrincipal("kms.amazonaws.com"));
rotationLambda.addToRolePolicy(new PolicyStatement({
effect: Effect.ALLOW,
actions: [
"kms:UpdateAlias",
"kms:ListAliases",
"kms:ListKeys",
"kms:DescribeKey",
"kms:CreateKey",
"kms:GetKeyPolicy",
"kms:PutKeyPolicy",
],
resources: ["*"],
}));This Lambda handles the secret rotation workflow securely.
Schedule Automated Secret Rotation
const rule = new events.Rule(this, 'MonthlyRotationRule', {
schedule: events.Schedule.cron({
minute: '0',
hour: '0',
day: '1',
month: '*',
weekDay: '?'
}),
});
rule.addTarget(new targets.LambdaFunction(rotationLambda));This schedule triggers secret rotation every month.
Lambda Logic for Key Replacement
export class KmsKeyRotationHandler {
private readonly kms: KMS;
public constructor(kms: KMS) {
this.kms = kms;
}
public async handleRotation(event: any): Promise<void> {
try {
const alias = event.alias;
const { KeyMetadata } = await this.kms.describeKey({
KeyId: alias,
}).promise();
const { Description, KeyUsage, KeyId, KeySpec } = KeyMetadata!;
const { Policy } = await this.kms.getKeyPolicy({
KeyId: KeyId!,
PolicyName: 'default',
}).promise();
const createKeyResult = await this.kms.createKey({
KeySpec,
Description,
KeyUsage,
Policy,
}).promise();
const newKeyId = createKeyResult?.KeyMetadata?.KeyId;
if (newKeyId) {
await this.kms.updateAlias({
AliasName: alias,
TargetKeyId: newKeyId,
}).promise();
console.log(`Successfully rotated key for alias ${alias}`);
}
} catch (error) {
console.error("Key rotation failed", error);
}
}
}
Secret Rotation in DevSecOps and Cloud Pipelines
It works best when integrated into delivery workflows. DevSecOps pipelines enforce rotation alongside deployment.
In addition:
-
DevOps automates secure releases
-
Cloud platforms centralize key management
-
AIOps detects unusual key usage
-
MLOps and DataOps protect sensitive models and data
-
Microservices benefit from consistent key handling
This alignment strengthens security without slowing teams down.
How ZippyOPS Helps with Secret Rotation
ZippyOPS helps organizations implement secret rotation through consulting, implementation, and managed services. Instead of fragmented tools, ZippyOPS delivers end-to-end security automation.
ZippyOPS expertise includes:
-
DevOps and DevSecOps pipelines
-
Cloud and infrastructure security
-
Automated Ops and AIOps
-
Secure MLOps and DataOps workflows
-
Microservices and key management
Explore ZippyOPS services here:
https://zippyops.com/services/
Discover proven architectures here:
https://zippyops.com/solutions/
Accelerate adoption with ZippyOPS products:
https://zippyops.com/products/
You can also watch demos and deep dives on the ZippyOPS YouTube channel:
https://www.youtube.com/@zippyops8329
Conclusion: Make Secret Rotation Automatic
In summary, it reduces risk and improves cloud security. Manual processes no longer scale in dynamic environments.
By automating key rotation on AWS, teams protect applications without disruption. With expert guidance, security becomes reliable and repeatable.
To implement secret rotation and strengthen your security posture, contact ZippyOPS today.
Contact: sales@zippyops.com
