Root > Reference > All Functions > DataUnprotect

Procedure DataUnprotect

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Decrypts data.

 

Unit

EEncrypt

 

Syntax

 

Code (Delphi)

procedure DataUnprotect(

const AProtectedData: Pointer;

const AProtectedDataSize: Cardinal;

out AData: Pointer;

out ADataSize: Cardinal

); overload;

 

function DataUnprotect(

const AProtectedData: RawByteString

): RawByteString; overload;

 

procedure DataUnprotect(

var AProtectedData: TEncryptBuffer

); overload;

 

procedure DataUnprotect(

const AProtectedData: TEncryptBuffer;

out AData: TEncryptBuffer

); overload;

 

Parameters

AProtectedData [in]

Encrypted data to decrypt.

 

AProtectedDataSize [in]

Size of AProtectedData.

 

AData [out]

Decrypted sensitive data. Can be deleted by FreeMem function (but we recommend to use SecureFree function instead).

 

ADataSize [out]

Size of AData.

 

AProtectedData [in]

Encrypted data to decrypt.

 

AProtectedData [in, out]

On input: encrypted data to decrypt. Must be allocated with AllocMem function.

On output: unencrypted sensitive data (size will be different). Can be deleted by EncryptBufferFree or SecureFree functions.

 

AData [out]

Unencrypted sensitive data (size will be different). Delete this data by EncryptBufferFree or SecureFree functions.

 

Return value

Unencrypted sensitive data (size will be different).

 

Remarks

DataUnprotect function decrypts memory that was encrypted using the DataProtect function.

 

You must encrypt and decrypt the data using the same user account and same computer.

 

When you have finished using the sensitive information, clear it from memory by calling the FillChar function.

 

See also




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Last edited: 2021-10-15
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