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You don't need to do anything with `.apply` for `bucket` or `content` in your `aws.s3.BucketObject`. If you're just passing the output of one resource as the input to another resource, you can use the resource output directly.

So this:
```const accessKeysInS3 = new aws.s3.BucketObject(
    "access-keys-in-s3",
    {
        bucket: myS3Bucket.apply(bucket =&gt; bucket.id),
        content: encryptedKeys.toString(),
        key: "accesskeys.json.enc"
    },
    { dependsOn: [userIamAccessKeys, encryptedKeys] }
);```
can become this:
```const accessKeysInS3 = new aws.s3.BucketObject(
    "access-keys-in-s3",
    {
        bucket: myS3Bucket.bucket,
        content: encryptedKeys.ciphertextBlob,
        key: "accesskeys.json.enc"
    },
    { dependsOn: [userIamAccessKeys, encryptedKeys] }
);```

But, since you are manipulating the values of your `userIamAccessKeys` you do need to create your `plaintext` input in a different way. The reason for this is because those outputs (`userIamAccessKeys.id` and `userIamAccessKeys.secret`) are not yet known until AWS assigns them you need to tell Pulumi to wait for them to become available. Using `pulumi.interpolate` is the easiest way in this case.

index.ts

So your complete code should look like the attached (with some added at the top for me to test it).

If I view the bucket object after I get what looks like real ciphertext:

```% aws s3 cp s3://$(pulumi stack output bucketName)/accesskeys.json.enc -
AQICAHgynVhNR5sTVMKg1GXDsF3vTA1FT5McgyMgENLw4aITywE1avXQZYL301sbg/UnP/FlAAAA5jCB4wYJKoZIhvcNAQcGoIHVMIHSAgEAMIHMBgkqhkiG9w0BBwEwHgYJYIZIAWUDBAEuMBEEDINNGvlWSXl4unm+hAIBEICBnmq+JUNE4DPlEhHK5c5CTH3SJ8DFwosDp/tcM6ONQ6zJBwwho7I1IFzdq6NUXiWZ5JlkNLvR8blqWll4tionhUWfOR1NM2CLWuBMRFTXux15kBPKo8l3UY+1q7jp4r0eONUFweQCdrXX/36JQf8OKOY8Ed9SgeXSSW1Tgnnw5B4AJqR1S+0hc33QAupyg0/C0fQmZwsRGE2lasvwTIw4```

Thank you so much. I really appreciate your help.