mbedtls/ChangeLog.d/gcm-update.txt

API changes
   * The interface of the GCM module has changed to remove restrictions on
     how the input to multipart operations is broken down. mbedtls_gcm_finish()
     now takes an extra output parameter for the last partial output block.
     mbedtls_gcm_update() now takes extra parameters for the output length.
     The software implementation always produces the full output at each
     call to mbedtls_gcm_update(), but alternative implementations activated
     by MBEDTLS_GCM_ALT may delay partial blocks to the next call to
     mbedtls_gcm_update() or mbedtls_gcm_finish().
     These changes are backward compatible for users of the cipher API.

Features
   * The multi-part GCM interface (mbedtls_gcm_update() or
     mbedtls_cipher_update()) no longer requires the size of partial inputs to
     be a multiple of 16.
Add output parameter to mbedtls_gcm_finish Alternative implementations of GCM may delay the output of partial blocks from mbedtls_gcm_update(). Add an output parameter to mbedtls_gcm_finish() to allow such implementations to pass the final partial block back to the caller. With the software implementation, this final output is always empty. Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com> 2021-04-15 16:48:32 +02:00			`API changes`
			`* The interface of the GCM module has changed to remove restrictions on`
			`how the input to multipart operations is broken down. mbedtls_gcm_finish()`
			`now takes an extra output parameter for the last partial output block.`
Add output length parameters to mbedtls_gcm_update Alternative implementations of GCM may delay the output of partial blocks from mbedtls_gcm_update(). Add an output length parameter to mbedtls_gcm_update() to allow such implementations to delay the output of partial blocks. With the software implementation, there is no such delay. Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com> 2021-04-15 17:22:35 +02:00			`mbedtls_gcm_update() now takes extra parameters for the output length.`
Add output parameter to mbedtls_gcm_finish Alternative implementations of GCM may delay the output of partial blocks from mbedtls_gcm_update(). Add an output parameter to mbedtls_gcm_finish() to allow such implementations to pass the final partial block back to the caller. With the software implementation, this final output is always empty. Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com> 2021-04-15 16:48:32 +02:00			`The software implementation always produces the full output at each`
			`call to mbedtls_gcm_update(), but alternative implementations activated`
			`by MBEDTLS_GCM_ALT may delay partial blocks to the next call to`
			`mbedtls_gcm_update() or mbedtls_gcm_finish().`
			`These changes are backward compatible for users of the cipher API.`

Remove alignment requirement for mbedtls_gcm_update: documentation Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com> 2021-04-13 16:09:32 +02:00			`Features`
			`* The multi-part GCM interface (mbedtls_gcm_update() or`
			`mbedtls_cipher_update()) no longer requires the size of partial inputs to`
			`be a multiple of 16.`