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pbiembed5's avatar
pbiembed5
New Member
6 years ago

Gateway public key size problem

Hello,   Is something changed with the public key size on the enterprise gateway lately? I've been using this key successfully to encrypt credentials and update DataSources bound on an already s...
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dmarkham's avatar
dmarkham
Frequent Visitor
6 years ago

We are also seeing the same problem

Were you able to find out more, or has there been an official response?

Thanks

dmarkham's avatar
dmarkham
Frequent Visitor
6 years ago

Incidently,

If you fix the provided code to use an encrypted length based on the key size, Power BI gateway won't decrypt and throws the following error:

DM.EnterpriseGateway Error: 0 : 2019-12-27T10:48:00.1390752Z DM.EnterpriseGateway a2650f49-396e-4e2c-b148-2cffef33b894 2880da58-6746-4578-83c6-40a997897f6a MGEC 00000000-0000-0000-0000-000000000000 d4c561e9-1c83-458a-84ed-1d5130e1dded d4c561e9-1c83-458a-84ed-1d5130e1dded 4B80A52E [DM.Pipeline.Common] Non-gateway exception encountered in activity scope: System.Security.Cryptography.CryptographicException: The parameter is incorrect.

at System.Security.Cryptography.NCryptNative.DecryptData[T](SafeNCryptKeyHandle key, Byte[] data, T& paddingInfo, AsymmetricPaddingMode paddingMode, NCryptDecryptor`1 decryptor)
at System.Security.Cryptography.NCryptNative.DecryptDataOaep(SafeNCryptKeyHandle key, Byte[] data, String hashAlgorithm)
at System.Security.Cryptography.RSACng.Decrypt(Byte[] data, RSAEncryptionPadding padding)
at Microsoft.PowerBI.DataMovement.CommonUtilities.Security.AsymmetricHigherKeyEncryptionHelper.Decrypt(String cipherText, String containerName)
at Microsoft.PowerBI.DataMovement.Pipeline.GatewayCore.GatewayProcessor.EncryptCredentialsWithSymmetricKey(GatewaySerializationContext responseContext, Func`1 getPlainCredentials)
at Microsoft.PowerBI.DataMovement.Pipeline.GatewayCore.GatewayProcessor.<>c__DisplayClass6_0.<<EncryptCredentialsWithTestDataSourceConnection>b__0>d.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.PowerBI.DataMovement.Pipeline.GatewayPipelineTelemetry.PipelineTelemetryService.<ExecuteInActivity>d__7`1.MoveNext()