19 lines
1.1 KiB
Text
19 lines
1.1 KiB
Text
API changes
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* The interface of the GCM module has changed to remove restrictions on
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how the input to multipart operations is broken down. mbedtls_gcm_finish()
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now takes an extra output parameter for the last partial output block.
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mbedtls_gcm_update() now takes extra parameters for the output length.
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The software implementation always produces the full output at each
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call to mbedtls_gcm_update(), but alternative implementations activated
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by MBEDTLS_GCM_ALT may delay partial blocks to the next call to
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mbedtls_gcm_update() or mbedtls_gcm_finish(). Furthermore, applications
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no longer pass the associated data to mbedtls_gcm_starts(), but to the
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new function mbedtls_gcm_update_ad().
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These changes are backward compatible for users of the cipher API.
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Features
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* The multi-part GCM interface (mbedtls_gcm_update() or
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mbedtls_cipher_update()) no longer requires the size of partial inputs to
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be a multiple of 16.
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* The multi-part GCM interface now supports chunked associated data through
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multiple calls to mbedtls_gcm_update_ad().
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