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Merge pull request #4708 from mstarzyk-mobica/ccm_chunked

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Ccm chunked - enable multipart CCM in PSA
This commit is contained in:
Gilles Peskine
2021-09-21 13:46:52 +02:00
committed by GitHub
parent 304689e4c4 133740b74e
commit f0f2294f57
5 changed files with 1234 additions and 277 deletions
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20
include/mbedtls/ccm.h
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@ -76,7 +76,27 @@ extern "C" {
*/
typedef struct mbedtls_ccm_context
{
unsigned char MBEDTLS_PRIVATE(y)[16]; /*!< The Y working buffer */
unsigned char MBEDTLS_PRIVATE(ctr)[16]; /*!< The counter buffer */
mbedtls_cipher_context_t MBEDTLS_PRIVATE(cipher_ctx); /*!< The cipher context used. */
size_t MBEDTLS_PRIVATE(plaintext_len); /*!< Total plaintext length */
size_t MBEDTLS_PRIVATE(add_len); /*!< Total authentication data length */
size_t MBEDTLS_PRIVATE(tag_len); /*!< Total tag length */
size_t MBEDTLS_PRIVATE(processed); /*!< Track how many bytes of input data
were processed (chunked input).
Used independently for both auth data
and plaintext/ciphertext.
This variable is set to zero after
auth data input is finished. */
unsigned char MBEDTLS_PRIVATE(q); /*!< The Q working value */
unsigned char MBEDTLS_PRIVATE(mode); /*!< The operation to perform:
#MBEDTLS_CCM_ENCRYPT or
#MBEDTLS_CCM_DECRYPT or
#MBEDTLS_CCM_STAR_ENCRYPT or
#MBEDTLS_CCM_STAR_DECRYPT. */
int MBEDTLS_PRIVATE(state); /*!< Working value holding context's
state. Used for chunked data
input */
}
mbedtls_ccm_context;