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96 lines
3.8 KiB
Text
96 lines
3.8 KiB
Text
NAME
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gcloud beta kms raw-decrypt - decrypt a ciphertext file using a raw key
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SYNOPSIS
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gcloud beta kms raw-decrypt --ciphertext-file=CIPHERTEXT_FILE
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--plaintext-file=PLAINTEXT_FILE
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[--additional-authenticated-data-file=ADDITIONAL_AUTHENTICATED_DATA_FILE]
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[--initialization-vector-file=INITIALIZATION_VECTOR_FILE] [--key=KEY]
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[--keyring=KEYRING] [--location=LOCATION]
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[--skip-integrity-verification] [--version=VERSION]
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[GCLOUD_WIDE_FLAG ...]
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DESCRIPTION
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(BETA) gcloud beta kms raw-decrypt decrypts the given ciphertext file using
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the given CryptoKey containing a raw key and writes the result to the named
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plaintext file. The ciphertext file must not be larger than 64KiB.
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The supported algorithms are: AES-128-GCM, AES-256-GCM, AES-128-CBC,
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AES-256-CBC, AES-128-CTR, and AES-256-CTR.
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AES-GCM provides authentication which means that it accepts additional
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authenticated data (AAD). So, the flag --additional-authenticated-data-file
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is only valid with AES-128-GCM and AES-256-GCM algorithms. If AAD is
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provided during encryption, it must be provided during decryption too. The
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file must not be larger than 64KiB.
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If --plaintext-file or --additional-authenticated-data-file or
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--initialization-vector-file is set to '-', that file is read from stdin.
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Similarly, if --ciphertext-file is set to '-', the ciphertext is written to
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stdout.
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By default, the command performs integrity verification on data sent to and
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received from Cloud KMS. Use --skip-integrity-verification to disable
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integrity verification.
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EXAMPLES
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The following command reads and decrypts the file path/to/input/ciphertext.
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The file will be decrypted using the CryptoKey KEYNAME containing a raw
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key, from the KeyRing KEYRING in the global location. It uses the
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additional authenticated data file path/to/input/aad (only valid with the
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AES-GCM algorithms) and the initialization vector file path/to/input/iv.
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The resulting plaintext will be written to path/to/output/plaintext.
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$ gcloud beta kms raw-decrypt --key=KEYNAME --keyring=KEYRING \
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--location=global --ciphertext-file=path/to/input/ciphertext \
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--additional-authenticated-data-file=path/to/input/aad \
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--initialization-vector-file=path/to/input/iv \
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--plaintext-file=path/to/output/plaintext
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REQUIRED FLAGS
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--ciphertext-file=CIPHERTEXT_FILE
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File path of the ciphertext file to decrypt.
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--plaintext-file=PLAINTEXT_FILE
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File path of the plaintext file to store the decrypted data.
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OPTIONAL FLAGS
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--additional-authenticated-data-file=ADDITIONAL_AUTHENTICATED_DATA_FILE
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File path to the optional file containing the additional authenticated
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data.
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--initialization-vector-file=INITIALIZATION_VECTOR_FILE
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File path to the optional file containing the initialization vector for
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decryption.
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--key=KEY
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The (raw) key to use for decryption.
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--keyring=KEYRING
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Key ring of the key.
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--location=LOCATION
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Location of the keyring.
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--skip-integrity-verification
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Skip integrity verification on request and response API fields.
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--version=VERSION
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Version to use for decryption.
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GCLOUD WIDE FLAGS
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These flags are available to all commands: --access-token-file, --account,
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--billing-project, --configuration, --flags-file, --flatten, --format,
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--help, --impersonate-service-account, --log-http, --project, --quiet,
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--trace-token, --user-output-enabled, --verbosity.
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Run $ gcloud help for details.
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NOTES
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This command is currently in beta and might change without notice. These
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variants are also available:
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$ gcloud kms raw-decrypt
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$ gcloud alpha kms raw-decrypt
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