Cipher.Update Method
Definition
Important
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Overloads
| Update(Byte[]) |
Continues a multiple-part encryption or decryption operation (depending on how this cipher was initialized), processing another data part. |
| Update(ByteBuffer, ByteBuffer) |
Continues a multiple-part encryption or decryption operation (depending on how this cipher was initialized), processing another data part. |
| Update(Byte[], Int32, Int32) |
Continues a multiple-part encryption or decryption operation (depending on how this cipher was initialized), processing another data part. |
| Update(Byte[], Int32, Int32, Byte[]) |
Continues a multiple-part encryption or decryption operation (depending on how this cipher was initialized), processing another data part. |
| Update(Byte[], Int32, Int32, Byte[], Int32) |
Continues a multiple-part encryption or decryption operation (depending on how this cipher was initialized), processing another data part. |
Update(Byte[])
Continues a multiple-part encryption or decryption operation (depending on how this cipher was initialized), processing another data part.
[Android.Runtime.Register("update", "([B)[B", "")]
public byte[]? Update (byte[]? input);[<Android.Runtime.Register("update", "([B)[B", "")>]
member this.Update : byte[] -> byte[]Parameters
- input
- Byte[]
the input buffer
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
Exceptions
if this cipher instance is not initialized for encryption or decryption.
if the input is null.
Remarks
Continues a multiple-part encryption or decryption operation (depending on how this cipher was initialized), processing another data part.
The bytes in the input buffer are processed, and the result is stored in a new buffer.
If input has a length of zero, this method returns null.
Java documentation for javax.crypto.Cipher.update(byte[]).
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.
Applies to
Update(ByteBuffer, ByteBuffer)
Continues a multiple-part encryption or decryption operation (depending on how this cipher was initialized), processing another data part.
[Android.Runtime.Register("update", "(Ljava/nio/ByteBuffer;Ljava/nio/ByteBuffer;)I", "")]
public int Update (Java.Nio.ByteBuffer? input, Java.Nio.ByteBuffer? output);[<Android.Runtime.Register("update", "(Ljava/nio/ByteBuffer;Ljava/nio/ByteBuffer;)I", "")>]
member this.Update : Java.Nio.ByteBuffer * Java.Nio.ByteBuffer -> intParameters
- input
- ByteBuffer
the input ByteBuffer
- output
- ByteBuffer
the output ByteByffer
Returns
the number of bytes stored in output
- Attributes
Exceptions
if the size of the output buffer is too small.
if this cipher instance is not initialized for encryption or decryption.
if the input buffer and the output buffer are the identical object.
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. In this case, repeat this call with a larger output buffer. Use #getOutputSize(int) getOutputSize to determine how big the output buffer should be.
Note: this method should be copy-safe, which means the input and output buffers can reference the same block of memory and no unprocessed input data is overwritten when the result is copied into the output buffer.
Added in 1.5.
Java documentation for javax.crypto.Cipher.update(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.
Applies to
Update(Byte[], Int32, Int32)
Continues a multiple-part encryption or decryption operation (depending on how this cipher was initialized), processing another data part.
[Android.Runtime.Register("update", "([BII)[B", "")]
public byte[]? Update (byte[]? input, int inputOffset, int inputLen);[<Android.Runtime.Register("update", "([BII)[B", "")>]
member this.Update : byte[] * int * int -> byte[]Parameters
- input
- Byte[]
the input buffer
- inputOffset
- Int32
the offset in input where the input
starts
- inputLen
- Int32
the input length
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
Exceptions
if this cipher instance is not initialized for encryption or decryption.
if input is null, or if inputOffset and
inputLen do not specify a valid chunk in the input
buffer.
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.
If inputLen is zero, this method returns null.
Java documentation for javax.crypto.Cipher.update(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.
Applies to
Update(Byte[], Int32, Int32, Byte[])
Continues a multiple-part encryption or decryption operation (depending on how this cipher was initialized), processing another data part.
[Android.Runtime.Register("update", "([BII[B)I", "")]
public int Update (byte[]? input, int inputOffset, int inputLen, byte[]? output);[<Android.Runtime.Register("update", "([BII[B)I", "")>]
member this.Update : byte[] * int * int * byte[] -> intParameters
- input
- Byte[]
the input buffer
- inputOffset
- Int32
the offset in input where the input
starts
- inputLen
- Int32
the input length
- output
- Byte[]
the buffer for the result
Returns
the number of bytes stored in output
- Attributes
Exceptions
if the size of the output buffer is too small.
if this cipher instance is not initialized for encryption or decryption.
if the input is null, the output is null, or
if inputOffset and inputLen do not specify a
valid chunk in the input buffer.
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.
If the output buffer is too small to hold the result, a ShortBufferException is thrown. In this case, repeat this call with a larger output buffer. Use #getOutputSize(int) getOutputSize to determine how big the output buffer should be.
If inputLen is zero, this method returns a length of zero.
Note: this method should be copy-safe, which means the input and output buffers can reference the same byte array and no unprocessed input data is overwritten when the result is copied into the output buffer.
Java documentation for javax.crypto.Cipher.update(byte[], int, int, byte[]).
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.
Applies to
Update(Byte[], Int32, Int32, Byte[], Int32)
Continues a multiple-part encryption or decryption operation (depending on how this cipher was initialized), processing another data part.
[Android.Runtime.Register("update", "([BII[BI)I", "")]
public int Update (byte[]? input, int inputOffset, int inputLen, byte[]? output, int outputOffset);[<Android.Runtime.Register("update", "([BII[BI)I", "")>]
member this.Update : byte[] * int * int * byte[] * int -> intParameters
- input
- Byte[]
the input buffer
- inputOffset
- Int32
the offset in input where the input
starts
- inputLen
- Int32
the input length
- output
- Byte[]
the buffer for the result
- outputOffset
- Int32
the offset in output where the result
is stored
Returns
the number of bytes stored in output
- Attributes
Exceptions
if the size of the output buffer is too small.
if this cipher instance is not initialized for encryption or decryption.
if the input is null, the output is null, or
if inputOffset and inputLen do not specify a
valid chunk in the input buffer.
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. In this case, repeat this call with a larger output buffer. Use #getOutputSize(int) getOutputSize to determine how big the output buffer should be.
If inputLen is zero, this method returns a length of zero.
Note: this method should be copy-safe, which means the input and output buffers can reference the same byte array and no unprocessed input data is overwritten when the result is copied into the output buffer.
Java documentation for javax.crypto.Cipher.update(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.