SslDecryptPacket function

the SslDecryptPacket function decrypts a single Secure Sockets Layer protocol (SSL) packet.

Syntax


SECURITY_STATUS WINAPI SslDecryptPacket(
  _In_     NCRYPT_PROV_HANDLE hSslProvider,
  _Inout_  NCRYPT_KEY_HANDLE hKey,
  _In_     PBYTE *pbInput,
  _In_     DWORD cbInput,
  _Out_    PBYTE pbOutput,
  _In_     DWORD cbOutput,
  _Out_    DWORD *pcbResult,
  _In_     ULONGLONG SequenceNumber,
  _In_     DWORD dwFlags
);

Parameters

hSslProvider [in]

The handle of the SSL protocol provider instance.

hKey [in, out]

The handle to the key that is used to decrypt the packet.

pbInput [in]

A pointer to the buffer that contains the packet to be decrypted.

cbInput [in]

The length, in bytes, of the pbInput buffer.

pbOutput [out]

A pointer to a buffer to contain the decrypted packet.

cbOutput [in]

The length, bytes, of the pbOutput buffer.

pcbResult [out]

The number of bytes written to the pbOutput buffer.

SequenceNumber [in]

The sequence number that corresponds to this packet.

dwFlags [in]

This parameter is reserved for future use.

Return value

If the function succeeds, it returns zero.

If the function fails, it returns a nonzero error value.

Possible return codes include, but are not limited to, the following.

Return code/valueDescription
NTE_INVALID_HANDLE
0x80090026L

One of the provided handles is not valid.

 

Remarks

The length of the packet can be zero, such as when a "HelloRequest" message is decrypted.

Requirements

Minimum supported client

Windows Vista [desktop apps only]

Minimum supported server

Windows Server 2008 [desktop apps only]

Header

Sslprovider.h

DLL

Ncrypt.dll

 

 

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