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Crea chiavi di crittografia con Cloud KMS
Questa guida rapida mostra come creare e utilizzare chiavi di crittografia con
Cloud Key Management Service in un progetto di tua proprietà. Queste istruzioni utilizzano la consoleGoogle Cloud per creare keyring, chiavi e versioni delle chiavi in Cloud KMS. Per istruzioni che utilizzano altri metodi,
consulta Panoramica di Autokey, Crea un portachiavi e Crea una chiave.
Questa guida rapida utilizza la riga di comando per inviare richieste all'API Cloud KMS. Per esempi di programmazione che utilizzano le librerie client per inviare richieste all'API Cloud KMS, consulta Crittografia e decrittografia.
Prima di iniziare
Sign in to your Google Cloud account. If you're new to
Google Cloud,
create an account to evaluate how our products perform in
real-world scenarios. New customers also get $300 in free credits to
run, test, and deploy workloads.
In the Google Cloud console, on the project selector page,
select or create a Google Cloud project.
Per inizializzare gcloud CLI, esegui questo comando:
gcloudinit
Keyring e chiavi
Per criptare e decriptare i contenuti, avrai bisogno di una chiave Cloud KMS, che
fa parte di un keyring.
Crea un keyring denominato test e una chiave denominata quickstart. Consulta la
panoramica della gerarchia degli oggetti per saperne di più
su questi oggetti e sul loro rapporto.
NAME PURPOSE PRIMARY_STATE
projects/PROJECT_ID/locations/global/keyRings/test/cryptoKeys/quickstart ENCRYPT_DECRYPT ENABLED
Criptare i dati
Ora che hai una chiave, puoi utilizzarla per criptare contenuti di testo o binari.
Memorizza del testo da criptare in un file denominato "mysecret.txt".
echo-n"Some text to be encrypted" > mysecret.txt
Per criptare i dati con gcloud kms encrypt, fornisci le informazioni sulla chiave,
specifica il nome del file di testo normale da criptare e il nome del
file che conterrà i contenuti criptati:
Il metodo encrypt salva i contenuti criptati nel file specificato dal
flag --ciphertext-file.
Decripta il testo crittografato
Per decriptare i dati con gcloud kms decrypt, fornisci le informazioni della chiave,
specifica il nome del file criptato (file di testo cifrato) da decriptare e specifica
il nome del file che conterrà i contenuti decriptati:
[[["Facile da capire","easyToUnderstand","thumb-up"],["Il problema è stato risolto","solvedMyProblem","thumb-up"],["Altra","otherUp","thumb-up"]],[["Difficile da capire","hardToUnderstand","thumb-down"],["Informazioni o codice di esempio errati","incorrectInformationOrSampleCode","thumb-down"],["Mancano le informazioni o gli esempi di cui ho bisogno","missingTheInformationSamplesINeed","thumb-down"],["Problema di traduzione","translationIssue","thumb-down"],["Altra","otherDown","thumb-down"]],["Ultimo aggiornamento 2025-09-05 UTC."],[],[],null,["Create encryption keys with Cloud KMS This quickstart shows you how to create and use encryption keys with\nCloud Key Management Service in a project you own. These instructions use the\nGoogle Cloud console to create key rings, keys, and key versions in\nCloud KMS. For instructions that use other methods,\nsee [Autokey overview](/kms/docs/autokey-overview), [Create a key\nring](/kms/docs/create-key-ring), and [Create a key](/kms/docs/create-key).\n\nThis quickstart uses the command line to send requests to the\nCloud KMS API. For programming examples that use the client\nlibraries to send requests to the Cloud KMS API, see [Encrypting\nand Decrypting](/kms/docs/encrypt-decrypt).\n\nBefore you begin\n\n- Sign in to your Google Cloud account. If you're new to Google Cloud, [create an account](https://console.cloud.google.com/freetrial) to evaluate how our products perform in real-world scenarios. New customers also get $300 in free credits to run, test, and deploy workloads.\n- In the Google Cloud console, on the project selector page,\n select or create a Google Cloud project.\n\n | **Note**: If you don't plan to keep the resources that you create in this procedure, create a project instead of selecting an existing project. After you finish these steps, you can delete the project, removing all resources associated with the project.\n\n [Go to project selector](https://console.cloud.google.com/projectselector2/home/dashboard)\n-\n [Verify that billing is enabled for your Google Cloud project](/billing/docs/how-to/verify-billing-enabled#confirm_billing_is_enabled_on_a_project).\n\n-\n\n\n Enable the Cloud KMS API.\n\n\n [Enable the API](https://console.cloud.google.com/flows/enableapi?apiid=cloudkms.googleapis.com&redirect=https://console.cloud.google.com)\n-\n [Install](/sdk/docs/install) the Google Cloud CLI.\n\n- If you're using an external identity provider (IdP), you must first\n [sign in to the gcloud CLI with your federated identity](/iam/docs/workforce-log-in-gcloud).\n\n-\n To [initialize](/sdk/docs/initializing) the gcloud CLI, run the following command:\n\n ```bash\n gcloud init\n ```\n\n- In the Google Cloud console, on the project selector page,\n select or create a Google Cloud project.\n\n | **Note**: If you don't plan to keep the resources that you create in this procedure, create a project instead of selecting an existing project. After you finish these steps, you can delete the project, removing all resources associated with the project.\n\n [Go to project selector](https://console.cloud.google.com/projectselector2/home/dashboard)\n-\n [Verify that billing is enabled for your Google Cloud project](/billing/docs/how-to/verify-billing-enabled#confirm_billing_is_enabled_on_a_project).\n\n-\n\n\n Enable the Cloud KMS API.\n\n\n [Enable the API](https://console.cloud.google.com/flows/enableapi?apiid=cloudkms.googleapis.com&redirect=https://console.cloud.google.com)\n-\n [Install](/sdk/docs/install) the Google Cloud CLI.\n\n- If you're using an external identity provider (IdP), you must first\n [sign in to the gcloud CLI with your federated identity](/iam/docs/workforce-log-in-gcloud).\n\n-\n To [initialize](/sdk/docs/initializing) the gcloud CLI, run the following command:\n\n ```bash\n gcloud init\n ```\n\n\u003cbr /\u003e\n\n| **Important:** This quickstart creates Cloud KMS resources such as key rings and keys. Once created, these resources cannot be deleted. For more information, see [Why can't I delete keys or key rings?](/kms/docs/faq#cannot_delete).\n\nKey rings and keys\n\nTo encrypt and decrypt content you will need a Cloud KMS key, which\nis part of a key ring.\n\nCreate a key ring named `test`, and a key named `quickstart`. Refer to the\n[object hierarchy overview](/kms/docs/object-hierarchy) for more\ninformation about these objects and how they are related. \n\n gcloud kms keyrings create \"test\" \\\n --location \"global\"\n\n gcloud kms keys create \"quickstart\" \\\n --location \"global\" \\\n --keyring \"test\" \\\n --purpose \"encryption\"\n\nYou can use the `list` option to view the name and metadata for the key that you\njust created. \n\n gcloud kms keys list \\\n --location \"global\" \\\n --keyring \"test\"\n\nYou should see: \n\n```\nNAME PURPOSE PRIMARY_STATE\nprojects/PROJECT_ID/locations/global/keyRings/test/cryptoKeys/quickstart ENCRYPT_DECRYPT ENABLED\n```\n\nEncrypt data\n\nNow that you have a key, you can use that key to encrypt text or binary\ncontent.\n\nStore some text to be encrypted in a file called \"mysecret.txt\". \n\n echo -n \"Some text to be encrypted\" \u003e mysecret.txt\n\nTo encrypt the data with `gcloud kms encrypt`, provide your key information,\nspecify the name of the plaintext file to encrypt, and specify the name of the\nfile that will contain the encrypted content: \n\n gcloud kms encrypt \\\n --location \"global\" \\\n --keyring \"test\" \\\n --key \"quickstart\" \\\n --plaintext-file ./mysecret.txt \\\n --ciphertext-file ./mysecret.txt.encrypted\n\nThe `encrypt` method saves your encrypted content in the file specified by the\n`--ciphertext-file` flag.\n\nDecrypt ciphertext\n\nTo decrypt the data with `gcloud kms decrypt`, provide your key information,\nspecify the name of the encrypted file (ciphertext file) to decrypt, and specify\nthe name of the file that will contain the decrypted content: \n\n gcloud kms decrypt \\\n --location \"global\" \\\n --keyring \"test\" \\\n --key \"quickstart\" \\\n --ciphertext-file ./mysecret.txt.encrypted \\\n --plaintext-file ./mysecret.txt.decrypted\n\nThe `decrypt` method saves your decrypted content in the file specified by the\n`--plaintext-file` flag.\n\nTo decrypt encrypted content, you must use the same key that was\nused to encrypt the content.\n\nClean up\n\n\nTo avoid incurring charges to your Google Cloud account for\nthe resources used on this page, follow these steps.\n\nList the versions available for your key: \n\n gcloud kms keys versions list \\\n --location \"global\" \\\n --keyring \"test\" \\\n --key \"quickstart\"\n\nTo destroy a version, run the following command, where `1` is the number\nof the key version that you want to destroy:\n**Important:** When you destroy a key version, you can no longer decrypt content that was encrypted using that version of the key. Make sure that you no longer need a key version before you destroy it. \n\n```\ngcloud kms keys versions destroy 1 \\\n --location \"global\" \\\n --keyring \"test\" \\\n --key \"quickstart\"\n```\n\nWhat's next\n\n- Start [using the API](/kms/docs/accessing-the-api).\n- Take a look at the [API Reference](/kms/docs/reference/rest).\n- Learn more about how to [encrypt data at\n rest](https://codelabs.developers.google.com/codelabs/encrypt-and-decrypt-data-with-cloud-kms)."]]
