CipherSpi.EngineUpdate Method

[Android.Runtime.Register("engineUpdate", "(Ljava/nio/ByteBuffer;Ljava/nio/ByteBuffer;)I", "GetEngineUpdate_Ljava_nio_ByteBuffer_Ljava_nio_ByteBuffer_Handler")]
protected virtual int EngineUpdate (Java.Nio.ByteBuffer? input, Java.Nio.ByteBuffer? output);

[<Android.Runtime.Register("engineUpdate", "(Ljava/nio/ByteBuffer;Ljava/nio/ByteBuffer;)I", "GetEngineUpdate_Ljava_nio_ByteBuffer_Ljava_nio_ByteBuffer_Handler")>]
abstract member EngineUpdate : Java.Nio.ByteBuffer * Java.Nio.ByteBuffer -> int
override this.EngineUpdate : Java.Nio.ByteBuffer * Java.Nio.ByteBuffer -> int

Parameters

Returns

the number of bytes stored in output

Attributes

RegisterAttribute

Exceptions

Remarks

Continues a multiple-part encryption or decryption operation (depending on how this cipher was initialized), processing another data part.

All input.remaining() bytes starting at input.position() are processed. The result is stored in the output buffer. Upon return, the input buffer's position will be equal to its limit; its limit will not have changed. The output buffer's position will have advanced by n, where n is the value returned by this method; the output buffer's limit will not have changed.

If output.remaining() bytes are insufficient to hold the result, a ShortBufferException is thrown.

Subclasses should consider overriding this method if they can process ByteBuffers more efficiently than byte arrays.

Added in 1.5.

Java documentation for javax.crypto.CipherSpi.engineUpdate(java.nio.ByteBuffer, java.nio.ByteBuffer).

Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.

[Android.Runtime.Register("engineUpdate", "([BII)[B", "GetEngineUpdate_arrayBIIHandler")]
protected abstract byte[]? EngineUpdate (byte[]? input, int inputOffset, int inputLen);

[<Android.Runtime.Register("engineUpdate", "([BII)[B", "GetEngineUpdate_arrayBIIHandler")>]
abstract member EngineUpdate : byte[] * int * int -> byte[]

Parameters

Returns

the new buffer with the result, or null if the underlying cipher is a block cipher and the input data is too short to result in a new block.

Attributes

RegisterAttribute

Exceptions

Remarks

Continues a multiple-part encryption or decryption operation (depending on how this cipher was initialized), processing another data part.

The first inputLen bytes in the input buffer, starting at inputOffset inclusive, are processed, and the result is stored in a new buffer.

Java documentation for javax.crypto.CipherSpi.engineUpdate(byte[], int, int).

Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.

[Android.Runtime.Register("engineUpdate", "([BII[BI)I", "GetEngineUpdate_arrayBIIarrayBIHandler")]
protected abstract int EngineUpdate (byte[]? input, int inputOffset, int inputLen, byte[]? output, int outputOffset);

[<Android.Runtime.Register("engineUpdate", "([BII[BI)I", "GetEngineUpdate_arrayBIIarrayBIHandler")>]
abstract member EngineUpdate : byte[] * int * int * byte[] * int -> int

Parameters

Returns

the number of bytes stored in output

Attributes

RegisterAttribute

Exceptions

Remarks

Continues a multiple-part encryption or decryption operation (depending on how this cipher was initialized), processing another data part.

The first inputLen bytes in the input buffer, starting at inputOffset inclusive, are processed, and the result is stored in the output buffer, starting at outputOffset inclusive.

If the output buffer is too small to hold the result, a ShortBufferException is thrown.

Java documentation for javax.crypto.CipherSpi.engineUpdate(byte[], int, int, byte[], int).

Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.