public sealed class DecryptResponse : IMessage<DecryptResponse>, IEquatable<DecryptResponse>, IDeepCloneable<DecryptResponse>, IBufferMessage, IMessage
Reference documentation and code samples for the Google Cloud Key Management Service v1 API class DecryptResponse.
Response message for
[KeyManagementService.Decrypt][google.cloud.kms.v1.KeyManagementService.Decrypt].
Integrity verification field. A CRC32C checksum of the returned
[DecryptResponse.plaintext][google.cloud.kms.v1.DecryptResponse.plaintext].
An integrity check of
[DecryptResponse.plaintext][google.cloud.kms.v1.DecryptResponse.plaintext]
can be performed by computing the CRC32C checksum of
[DecryptResponse.plaintext][google.cloud.kms.v1.DecryptResponse.plaintext]
and comparing your results to this field. Discard the response in case of
non-matching checksum values, and perform a limited number of retries. A
persistent mismatch may indicate an issue in your computation of the CRC32C
checksum. Note: receiving this response message indicates that
[KeyManagementService][google.cloud.kms.v1.KeyManagementService] is able to
successfully decrypt the
[ciphertext][google.cloud.kms.v1.DecryptRequest.ciphertext]. Note: This
field is defined as int64 for reasons of compatibility across different
languages. However, it is a non-negative integer, which will never exceed
2^32-1, and can be safely downconverted to uint32 in languages that support
this type.
Property Value
Type
Description
System.Int64
ProtectionLevel
public ProtectionLevel ProtectionLevel { get; set; }
The [ProtectionLevel][google.cloud.kms.v1.ProtectionLevel] of the
[CryptoKeyVersion][google.cloud.kms.v1.CryptoKeyVersion] used in
decryption.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-07 UTC."],[[["\u003cp\u003eThis document provides reference information for the \u003ccode\u003eDecryptResponse\u003c/code\u003e class within the Google Cloud Key Management Service v1 API, specifically for .NET developers.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eDecryptResponse\u003c/code\u003e class is used to represent the response message for the \u003ccode\u003eKeyManagementService.Decrypt\u003c/code\u003e operation and includes properties such as \u003ccode\u003ePlaintext\u003c/code\u003e, \u003ccode\u003ePlaintextCrc32C\u003c/code\u003e, \u003ccode\u003eProtectionLevel\u003c/code\u003e, and \u003ccode\u003eUsedPrimary\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003ePlaintext\u003c/code\u003e property contains the decrypted data, and \u003ccode\u003ePlaintextCrc32C\u003c/code\u003e offers a checksum to verify the integrity of the decrypted data.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eProtectionLevel\u003c/code\u003e property indicates the protection level of the \u003ccode\u003eCryptoKeyVersion\u003c/code\u003e used for decryption, while \u003ccode\u003eUsedPrimary\u003c/code\u003e specifies whether the decryption used the primary key version.\u003c/p\u003e\n"],["\u003cp\u003eThe latest version available for the DecryptResponse documentation is 3.16.0, and earlier versions from 3.15.0 to 2.2.0 are also accessible.\u003c/p\u003e\n"]]],[],null,["# Google Cloud Key Management Service v1 API - Class DecryptResponse (3.18.0)\n\nVersion latestkeyboard_arrow_down\n\n- [3.18.0 (latest)](/dotnet/docs/reference/Google.Cloud.Kms.V1/latest/Google.Cloud.Kms.V1.DecryptResponse)\n- [3.17.0](/dotnet/docs/reference/Google.Cloud.Kms.V1/3.17.0/Google.Cloud.Kms.V1.DecryptResponse)\n- [3.16.0](/dotnet/docs/reference/Google.Cloud.Kms.V1/3.16.0/Google.Cloud.Kms.V1.DecryptResponse)\n- [3.15.0](/dotnet/docs/reference/Google.Cloud.Kms.V1/3.15.0/Google.Cloud.Kms.V1.DecryptResponse)\n- [3.14.0](/dotnet/docs/reference/Google.Cloud.Kms.V1/3.14.0/Google.Cloud.Kms.V1.DecryptResponse)\n- [3.13.0](/dotnet/docs/reference/Google.Cloud.Kms.V1/3.13.0/Google.Cloud.Kms.V1.DecryptResponse)\n- [3.12.0](/dotnet/docs/reference/Google.Cloud.Kms.V1/3.12.0/Google.Cloud.Kms.V1.DecryptResponse)\n- [3.11.0](/dotnet/docs/reference/Google.Cloud.Kms.V1/3.11.0/Google.Cloud.Kms.V1.DecryptResponse)\n- [3.10.0](/dotnet/docs/reference/Google.Cloud.Kms.V1/3.10.0/Google.Cloud.Kms.V1.DecryptResponse)\n- [3.9.0](/dotnet/docs/reference/Google.Cloud.Kms.V1/3.9.0/Google.Cloud.Kms.V1.DecryptResponse)\n- [3.8.0](/dotnet/docs/reference/Google.Cloud.Kms.V1/3.8.0/Google.Cloud.Kms.V1.DecryptResponse)\n- [3.7.0](/dotnet/docs/reference/Google.Cloud.Kms.V1/3.7.0/Google.Cloud.Kms.V1.DecryptResponse)\n- [3.6.0](/dotnet/docs/reference/Google.Cloud.Kms.V1/3.6.0/Google.Cloud.Kms.V1.DecryptResponse)\n- [3.5.0](/dotnet/docs/reference/Google.Cloud.Kms.V1/3.5.0/Google.Cloud.Kms.V1.DecryptResponse)\n- [3.4.0](/dotnet/docs/reference/Google.Cloud.Kms.V1/3.4.0/Google.Cloud.Kms.V1.DecryptResponse)\n- [3.3.0](/dotnet/docs/reference/Google.Cloud.Kms.V1/3.3.0/Google.Cloud.Kms.V1.DecryptResponse)\n- [3.2.0](/dotnet/docs/reference/Google.Cloud.Kms.V1/3.2.0/Google.Cloud.Kms.V1.DecryptResponse)\n- [3.1.0](/dotnet/docs/reference/Google.Cloud.Kms.V1/3.1.0/Google.Cloud.Kms.V1.DecryptResponse)\n- [3.0.0](/dotnet/docs/reference/Google.Cloud.Kms.V1/3.0.0/Google.Cloud.Kms.V1.DecryptResponse)\n- [2.9.0](/dotnet/docs/reference/Google.Cloud.Kms.V1/2.9.0/Google.Cloud.Kms.V1.DecryptResponse)\n- [2.8.0](/dotnet/docs/reference/Google.Cloud.Kms.V1/2.8.0/Google.Cloud.Kms.V1.DecryptResponse)\n- [2.7.0](/dotnet/docs/reference/Google.Cloud.Kms.V1/2.7.0/Google.Cloud.Kms.V1.DecryptResponse)\n- [2.6.0](/dotnet/docs/reference/Google.Cloud.Kms.V1/2.6.0/Google.Cloud.Kms.V1.DecryptResponse)\n- [2.5.0](/dotnet/docs/reference/Google.Cloud.Kms.V1/2.5.0/Google.Cloud.Kms.V1.DecryptResponse)\n- [2.4.0](/dotnet/docs/reference/Google.Cloud.Kms.V1/2.4.0/Google.Cloud.Kms.V1.DecryptResponse)\n- [2.3.0](/dotnet/docs/reference/Google.Cloud.Kms.V1/2.3.0/Google.Cloud.Kms.V1.DecryptResponse)\n- [2.2.0](/dotnet/docs/reference/Google.Cloud.Kms.V1/2.2.0/Google.Cloud.Kms.V1.DecryptResponse) \n\n public sealed class DecryptResponse : IMessage\u003cDecryptResponse\u003e, IEquatable\u003cDecryptResponse\u003e, IDeepCloneable\u003cDecryptResponse\u003e, IBufferMessage, IMessage\n\nReference documentation and code samples for the Google Cloud Key Management Service v1 API class DecryptResponse.\n\nResponse message for\n\\[KeyManagementService.Decrypt\\]\\[google.cloud.kms.v1.KeyManagementService.Decrypt\\]. \n\nInheritance\n-----------\n\n[object](https://learn.microsoft.com/dotnet/api/system.object) \\\u003e DecryptResponse \n\nImplements\n----------\n\n[IMessage](https://cloud.google.com/dotnet/docs/reference/Google.Protobuf/latest/Google.Protobuf.IMessage-1.html)[DecryptResponse](/dotnet/docs/reference/Google.Cloud.Kms.V1/latest/Google.Cloud.Kms.V1.DecryptResponse), [IEquatable](https://learn.microsoft.com/dotnet/api/system.iequatable-1)[DecryptResponse](/dotnet/docs/reference/Google.Cloud.Kms.V1/latest/Google.Cloud.Kms.V1.DecryptResponse), [IDeepCloneable](https://cloud.google.com/dotnet/docs/reference/Google.Protobuf/latest/Google.Protobuf.IDeepCloneable-1.html)[DecryptResponse](/dotnet/docs/reference/Google.Cloud.Kms.V1/latest/Google.Cloud.Kms.V1.DecryptResponse), [IBufferMessage](https://cloud.google.com/dotnet/docs/reference/Google.Protobuf/latest/Google.Protobuf.IBufferMessage.html), [IMessage](https://cloud.google.com/dotnet/docs/reference/Google.Protobuf/latest/Google.Protobuf.IMessage.html) \n\nInherited Members\n-----------------\n\n[object.GetHashCode()](https://learn.microsoft.com/dotnet/api/system.object.gethashcode) \n[object.GetType()](https://learn.microsoft.com/dotnet/api/system.object.gettype) \n[object.ToString()](https://learn.microsoft.com/dotnet/api/system.object.tostring)\n\nNamespace\n---------\n\n[Google.Cloud.Kms.V1](/dotnet/docs/reference/Google.Cloud.Kms.V1/latest/Google.Cloud.Kms.V1)\n\nAssembly\n--------\n\nGoogle.Cloud.Kms.V1.dll\n\nConstructors\n------------\n\n### DecryptResponse()\n\n public DecryptResponse()\n\n### DecryptResponse(DecryptResponse)\n\n public DecryptResponse(DecryptResponse other)\n\nProperties\n----------\n\n### Plaintext\n\n public ByteString Plaintext { get; set; }\n\nThe decrypted data originally supplied in\n\\[EncryptRequest.plaintext\\]\\[google.cloud.kms.v1.EncryptRequest.plaintext\\].\n\n### PlaintextCrc32C\n\n public long? PlaintextCrc32C { get; set; }\n\nIntegrity verification field. A CRC32C checksum of the returned\n\\[DecryptResponse.plaintext\\]\\[google.cloud.kms.v1.DecryptResponse.plaintext\\].\nAn integrity check of\n\\[DecryptResponse.plaintext\\]\\[google.cloud.kms.v1.DecryptResponse.plaintext\\]\ncan be performed by computing the CRC32C checksum of\n\\[DecryptResponse.plaintext\\]\\[google.cloud.kms.v1.DecryptResponse.plaintext\\]\nand comparing your results to this field. Discard the response in case of\nnon-matching checksum values, and perform a limited number of retries. A\npersistent mismatch may indicate an issue in your computation of the CRC32C\nchecksum. Note: receiving this response message indicates that\n\\[KeyManagementService\\]\\[google.cloud.kms.v1.KeyManagementService\\] is able to\nsuccessfully decrypt the\n\\[ciphertext\\]\\[google.cloud.kms.v1.DecryptRequest.ciphertext\\]. Note: This\nfield is defined as int64 for reasons of compatibility across different\nlanguages. However, it is a non-negative integer, which will never exceed\n2\\^32-1, and can be safely downconverted to uint32 in languages that support\nthis type.\n\n### ProtectionLevel\n\n public ProtectionLevel ProtectionLevel { get; set; }\n\nThe \\[ProtectionLevel\\]\\[google.cloud.kms.v1.ProtectionLevel\\] of the\n\\[CryptoKeyVersion\\]\\[google.cloud.kms.v1.CryptoKeyVersion\\] used in\ndecryption.\n\n### UsedPrimary\n\n public bool UsedPrimary { get; set; }\n\nWhether the Decryption was performed using the primary key version."]]
