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Paws-0.43
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/ Paws::KMS::Decrypt

NAME

Paws::KMS::Decrypt - Arguments for method Decrypt on Paws::KMS

DESCRIPTION

This class represents the parameters used for calling the method Decrypt on the AWS Key Management Service service. Use the attributes of this class as arguments to method Decrypt.

You shouldn't make instances of this class. Each attribute should be used as a named argument in the call to Decrypt.

SYNOPSIS

my $kms = Paws->service('KMS');
# To decrypt data
# The following example decrypts data that was encrypted with a customer
# master key (CMK) in AWS KMS.
my $DecryptResponse = $kms->Decrypt( 'CiphertextBlob' => '<binary data>' );

# Results:
my $KeyId     = $DecryptResponse->KeyId;
my $Plaintext = $DecryptResponse->Plaintext;

# Returns a L<Paws::KMS::DecryptResponse> object.

Values for attributes that are native types (Int, String, Float, etc) can passed as-is (scalar values). Values for complex Types (objects) can be passed as a HashRef. The keys and values of the hashref will be used to instance the underlying object. For the AWS API documentation, see https://docs.aws.amazon.com/goto/WebAPI/kms/Decrypt

ATTRIBUTES

REQUIRED CiphertextBlob => Str

Ciphertext to be decrypted. The blob includes metadata.

EncryptionAlgorithm => Str

Specifies the encryption algorithm that will be used to decrypt the ciphertext. Specify the same algorithm that was used to encrypt the data. If you specify a different algorithm, the Decrypt operation fails.

This parameter is required only when the ciphertext was encrypted under an asymmetric CMK. The default value, SYMMETRIC_DEFAULT, represents the only supported algorithm that is valid for symmetric CMKs.

Valid values are: "SYMMETRIC_DEFAULT", "RSAES_OAEP_SHA_1", "RSAES_OAEP_SHA_256"

EncryptionContext => Paws::KMS::EncryptionContextType

Specifies the encryption context to use when decrypting the data. An encryption context is valid only for cryptographic operations with a symmetric CMK. The standard asymmetric encryption algorithms that AWS KMS uses do not support an encryption context.

An encryption context is a collection of non-secret key-value pairs that represents additional authenticated data. When you use an encryption context to encrypt data, you must specify the same (an exact case-sensitive match) encryption context to decrypt the data. An encryption context is optional when encrypting with a symmetric CMK, but it is highly recommended.

For more information, see Encryption Context (https://docs.aws.amazon.com/kms/latest/developerguide/concepts.html#encrypt_context) in the AWS Key Management Service Developer Guide.

GrantTokens => ArrayRef[Str|Undef]

A list of grant tokens.

For more information, see Grant Tokens (https://docs.aws.amazon.com/kms/latest/developerguide/concepts.html#grant_token) in the AWS Key Management Service Developer Guide.

KeyId => Str

Specifies the customer master key (CMK) that AWS KMS will use to decrypt the ciphertext. Enter a key ID of the CMK that was used to encrypt the ciphertext.

If you specify a KeyId value, the Decrypt operation succeeds only if the specified CMK was used to encrypt the ciphertext.

This parameter is required only when the ciphertext was encrypted under an asymmetric CMK. Otherwise, AWS KMS uses the metadata that it adds to the ciphertext blob to determine which CMK was used to encrypt the ciphertext. However, you can use this parameter to ensure that a particular CMK (of any kind) is used to decrypt the ciphertext.

To specify a CMK, use its key ID, Amazon Resource Name (ARN), alias name, or alias ARN. When using an alias name, prefix it with "alias/".

For example:

  • Key ID: 1234abcd-12ab-34cd-56ef-1234567890ab

  • Key ARN: arn:aws:kms:us-east-2:111122223333:key/1234abcd-12ab-34cd-56ef-1234567890ab

  • Alias name: alias/ExampleAlias

  • Alias ARN: arn:aws:kms:us-east-2:111122223333:alias/ExampleAlias

To get the key ID and key ARN for a CMK, use ListKeys or DescribeKey. To get the alias name and alias ARN, use ListAliases.

SEE ALSO

This class forms part of Paws, documenting arguments for method Decrypt in Paws::KMS

BUGS and CONTRIBUTIONS

The source code is located here: https://github.com/pplu/aws-sdk-perl

Please report bugs to: https://github.com/pplu/aws-sdk-perl/issues