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SSL asynchronous private key operation callbacks: interface

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New compile-time option MBEDTLS_SSL_ASYNC_PRIVATE_C, enabling
callbacks to replace private key operations. These callbacks allow the
SSL stack to make an asynchronous call to an external cryptographic
module instead of calling the cryptography layer inside the library.
The call is asynchronous in that it may return the new status code
MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS, in which case the SSL stack returns
and can be later called where it left off.

This commit introduces the configuration option. Later commits will
implement the feature proper.
This commit is contained in:
Gilles Peskine 2018-01-05 21:11:53 +01:00
parent 59e83d96db
commit 8bf79f6dc6
7 changed files with 246 additions and 1 deletions
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11
include/mbedtls/config.h
View file

@ -2333,6 +2333,17 @@
*/
#define MBEDTLS_SHA512_C
/**
* \def MBEDTLS_SSL_ASYNC_PRIVATE_C
*
* Enable asynchronous external private key operations in SSL. This allows
* you to configure an SSL connection to call an external cryptographic
* module to perform private key operations instead of performing the
* operation inside the library.
*
*/
#define MBEDTLS_SSL_ASYNC_PRIVATE_C
/**
* \def MBEDTLS_SSL_CACHE_C
*