mirror of
https://github.com/yuzu-emu/mbedtls.git
synced 2024-11-26 02:25:40 +01:00
Add parameter validation for CCM
This commit is contained in:
k-stachowiak
Gilles Peskine
parent
54b789aa74
commit
26d365eb54
@ -57,7 +57,6 @@
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/* MBEDTLS_ERR_CCM_HW_ACCEL_FAILED is deprecated and should not be used. */
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#define MBEDTLS_ERR_CCM_HW_ACCEL_FAILED -0x0011 /**< CCM hardware accelerator failed. */
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#ifdef __cplusplus
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extern "C" {
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#endif
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@ -85,7 +84,7 @@ mbedtls_ccm_context;
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* to make references valid, and prepare the context
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* for mbedtls_ccm_setkey() or mbedtls_ccm_free().
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*
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* \param ctx The CCM context to initialize.
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* \param ctx The CCM context to initialize. Must not be NULL.
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*/
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void mbedtls_ccm_init( mbedtls_ccm_context *ctx );
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@ -93,9 +92,9 @@ void mbedtls_ccm_init( mbedtls_ccm_context *ctx );
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* \brief This function initializes the CCM context set in the
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* \p ctx parameter and sets the encryption key.
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*
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* \param ctx The CCM context to initialize.
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* \param ctx The CCM context to initialize. Must not be NULL.
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* \param cipher The 128-bit block cipher to use.
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* \param key The encryption key.
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* \param key The encryption key. Must not be NULL.
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* \param keybits The key size in bits. This must be acceptable by the cipher.
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*
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* \return \c 0 on success.
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@ -110,7 +109,7 @@ int mbedtls_ccm_setkey( mbedtls_ccm_context *ctx,
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* \brief This function releases and clears the specified CCM context
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* and underlying cipher sub-context.
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*
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* \param ctx The CCM context to clear.
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* \param ctx The CCM context to clear. Must not be NULL.
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*/
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void mbedtls_ccm_free( mbedtls_ccm_context *ctx );
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@ -123,19 +122,20 @@ void mbedtls_ccm_free( mbedtls_ccm_context *ctx );
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* \p tag = \p output + \p length, and make sure that the
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* output buffer is at least \p length + \p tag_len wide.
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*
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* \param ctx The CCM context to use for encryption.
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* \param ctx The CCM context to use for encryption. Must not be NULL.
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* \param length The length of the input data in Bytes.
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* \param iv Initialization vector (nonce).
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* \param iv Initialization vector (nonce). Must not be NULL.
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* \param iv_len The length of the nonce in Bytes: 7, 8, 9, 10, 11, 12,
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* or 13. The length L of the message length field is
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* 15 - \p iv_len.
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* \param add The additional data field.
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* \param add The additional data field. Must not be NULL.
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* \param add_len The length of additional data in Bytes.
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* Must be less than 2^16 - 2^8.
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* \param input The buffer holding the input data.
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* \param input The buffer holding the input data. Must not be NULL.
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* \param output The buffer holding the output data.
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* Must be at least \p length Bytes wide.
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* \param tag The buffer holding the authentication field.
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* \param tag The buffer holding the authentication field. Must not be
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* NULL.
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* \param tag_len The length of the authentication field to generate in Bytes:
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* 4, 6, 8, 10, 12, 14 or 16.
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*
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@ -161,19 +161,20 @@ int mbedtls_ccm_encrypt_and_tag( mbedtls_ccm_context *ctx, size_t length,
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* the tag length has to be encoded into the \p iv passed to
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* this function.
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*
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* \param ctx The CCM context to use for encryption.
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* \param ctx The CCM context to use for encryption. Must not be NULL.
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* \param length The length of the input data in Bytes.
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* \param iv Initialization vector (nonce).
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* \param iv Initialization vector (nonce). Must not be NULL.
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* \param iv_len The length of the nonce in Bytes: 7, 8, 9, 10, 11, 12,
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* or 13. The length L of the message length field is
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* 15 - \p iv_len.
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* \param add The additional data field.
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* \param add The additional data field. Must not be NULL.
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* \param add_len The length of additional data in Bytes.
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* Must be less than 2^16 - 2^8.
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* \param input The buffer holding the input data.
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* \param input The buffer holding the input data. Must not be NULL.
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* \param output The buffer holding the output data.
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* Must be at least \p length Bytes wide.
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* \param tag The buffer holding the authentication field.
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* \param tag The buffer holding the authentication field. Must not be
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* NULL.
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* \param tag_len The length of the authentication field to generate in Bytes:
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* 0, 4, 6, 8, 10, 12, 14 or 16.
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*
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@ -193,19 +194,20 @@ int mbedtls_ccm_star_encrypt_and_tag( mbedtls_ccm_context *ctx, size_t length,
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* \brief This function performs a CCM authenticated decryption of a
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* buffer.
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*
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* \param ctx The CCM context to use for decryption.
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* \param ctx The CCM context to use for decryption. Must not be NULL.
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* \param length The length of the input data in Bytes.
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* \param iv Initialization vector (nonce).
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* \param iv Initialization vector (nonce). Must not be NULL.
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* \param iv_len The length of the nonce in Bytes: 7, 8, 9, 10, 11, 12,
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* or 13. The length L of the message length field is
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* 15 - \p iv_len.
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* \param add The additional data field.
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* \param add The additional data field. Must not be NULL.
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* \param add_len The length of additional data in Bytes.
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* Must be less than 2^16 - 2^8.
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* \param input The buffer holding the input data.
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* \param input The buffer holding the input data. Must not be NULL.
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* \param output The buffer holding the output data.
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* Must be at least \p length Bytes wide.
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* \param tag The buffer holding the authentication field.
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* \param tag The buffer holding the authentication field. Must not be
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* NULL.
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* \param tag_len The length of the authentication field in Bytes.
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* 4, 6, 8, 10, 12, 14 or 16.
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*
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@ -228,19 +230,20 @@ int mbedtls_ccm_auth_decrypt( mbedtls_ccm_context *ctx, size_t length,
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* this function as \p tag_len. (\p tag needs to be adjusted
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* accordingly.)
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*
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* \param ctx The CCM context to use for decryption.
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* \param ctx The CCM context to use for decryption. Must not be NULL.
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* \param length The length of the input data in Bytes.
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* \param iv Initialization vector (nonce).
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* \param iv Initialization vector (nonce). Must not be NULL.
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* \param iv_len The length of the nonce in Bytes: 7, 8, 9, 10, 11, 12,
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* or 13. The length L of the message length field is
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* 15 - \p iv_len.
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* \param add The additional data field.
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* \param add The additional data field. Must not be NULL.
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* \param add_len The length of additional data in Bytes.
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* Must be less than 2^16 - 2^8.
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* \param input The buffer holding the input data.
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* \param input The buffer holding the input data. Must not be NULL.
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* \param output The buffer holding the output data.
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* Must be at least \p length Bytes wide.
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* \param tag The buffer holding the authentication field.
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* \param tag The buffer holding the authentication field. Must not be
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* NULL.
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* \param tag_len The length of the authentication field in Bytes.
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* 0, 4, 6, 8, 10, 12, 14 or 16.
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*
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@ -52,6 +52,11 @@
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#if !defined(MBEDTLS_CCM_ALT)
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#define CCM_VALIDATE_RET( cond ) \
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MBEDTLS_INTERNAL_VALIDATE_RET( cond, MBEDTLS_ERR_CCM_BAD_INPUT )
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#define CCM_VALIDATE( cond ) \
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MBEDTLS_INTERNAL_VALIDATE( cond )
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#define CCM_ENCRYPT 0
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#define CCM_DECRYPT 1
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@ -60,6 +65,7 @@
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*/
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void mbedtls_ccm_init( mbedtls_ccm_context *ctx )
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{
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CCM_VALIDATE( ctx != NULL );
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memset( ctx, 0, sizeof( mbedtls_ccm_context ) );
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}
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@ -71,6 +77,9 @@ int mbedtls_ccm_setkey( mbedtls_ccm_context *ctx,
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int ret;
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const mbedtls_cipher_info_t *cipher_info;
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CCM_VALIDATE_RET( ctx != NULL );
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CCM_VALIDATE_RET( key != NULL );
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cipher_info = mbedtls_cipher_info_from_values( cipher, keybits, MBEDTLS_MODE_ECB );
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if( cipher_info == NULL )
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return( MBEDTLS_ERR_CCM_BAD_INPUT );
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@ -97,6 +106,7 @@ int mbedtls_ccm_setkey( mbedtls_ccm_context *ctx,
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*/
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void mbedtls_ccm_free( mbedtls_ccm_context *ctx )
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{
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CCM_VALIDATE( ctx != NULL );
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mbedtls_cipher_free( &ctx->cipher_ctx );
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mbedtls_platform_zeroize( ctx, sizeof( mbedtls_ccm_context ) );
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}
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@ -310,6 +320,12 @@ int mbedtls_ccm_star_encrypt_and_tag( mbedtls_ccm_context *ctx, size_t length,
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const unsigned char *input, unsigned char *output,
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unsigned char *tag, size_t tag_len )
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{
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CCM_VALIDATE_RET( ctx != NULL );
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CCM_VALIDATE_RET( iv != NULL );
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CCM_VALIDATE_RET( add != NULL );
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CCM_VALIDATE_RET( input != NULL );
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CCM_VALIDATE_RET( output != NULL );
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CCM_VALIDATE_RET( tag != NULL );
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return( ccm_auth_crypt( ctx, CCM_ENCRYPT, length, iv, iv_len,
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add, add_len, input, output, tag, tag_len ) );
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}
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@ -320,6 +336,12 @@ int mbedtls_ccm_encrypt_and_tag( mbedtls_ccm_context *ctx, size_t length,
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const unsigned char *input, unsigned char *output,
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unsigned char *tag, size_t tag_len )
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{
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CCM_VALIDATE_RET( ctx != NULL );
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CCM_VALIDATE_RET( iv != NULL );
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CCM_VALIDATE_RET( add != NULL );
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CCM_VALIDATE_RET( input != NULL );
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CCM_VALIDATE_RET( output != NULL );
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CCM_VALIDATE_RET( tag != NULL );
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if( tag_len == 0 )
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return( MBEDTLS_ERR_CCM_BAD_INPUT );
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@ -341,6 +363,13 @@ int mbedtls_ccm_star_auth_decrypt( mbedtls_ccm_context *ctx, size_t length,
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unsigned char i;
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int diff;
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CCM_VALIDATE_RET( ctx != NULL );
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CCM_VALIDATE_RET( iv != NULL );
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CCM_VALIDATE_RET( add != NULL );
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CCM_VALIDATE_RET( input != NULL );
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CCM_VALIDATE_RET( output != NULL );
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CCM_VALIDATE_RET( tag != NULL );
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if( ( ret = ccm_auth_crypt( ctx, CCM_DECRYPT, length,
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iv, iv_len, add, add_len,
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input, output, check_tag, tag_len ) ) != 0 )
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@ -1,6 +1,9 @@
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CCM self test
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mbedtls_ccm_self_test:
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CCM - Invalid parameters
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ccm_invalid_param:
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CCM init #1 AES-128: OK
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depends_on:MBEDTLS_AES_C
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mbedtls_ccm_setkey:MBEDTLS_CIPHER_ID_AES:128:0
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@ -326,3 +326,210 @@ exit:
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mbedtls_ccm_free( &ctx );
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}
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/* END_CASE */
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/* BEGIN_CASE depends_on:MBEDTLS_CHECK_PARAMS:!MBEDTLS_PARAM_FAILED_ALT */
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void ccm_invalid_param( )
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{
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struct mbedtls_ccm_context ctx;
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unsigned char valid_buffer[] = { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06 };
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mbedtls_cipher_id_t valid_cipher = MBEDTLS_CIPHER_ID_AES;
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int valid_len = sizeof(valid_buffer);
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int valid_bitlen = valid_len * 8;
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mbedtls_ccm_init( &ctx );
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/* mbedtls_ccm_init() */
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TEST_INVALID_PARAM( mbedtls_ccm_init( NULL ) );
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/* mbedtls_ccm_setkey() */
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TEST_INVALID_PARAM_RET(
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MBEDTLS_ERR_CCM_BAD_INPUT,
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mbedtls_ccm_setkey( NULL, valid_cipher, valid_buffer, valid_bitlen ) );
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TEST_INVALID_PARAM_RET(
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MBEDTLS_ERR_CCM_BAD_INPUT,
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mbedtls_ccm_setkey( &ctx, valid_cipher, NULL, valid_bitlen ) );
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/* mbedtls_ccm_encrypt_and_tag() */
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TEST_INVALID_PARAM_RET(
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MBEDTLS_ERR_CCM_BAD_INPUT,
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mbedtls_ccm_encrypt_and_tag( NULL, valid_len,
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valid_buffer, valid_len,
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valid_buffer, valid_len,
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valid_buffer, valid_buffer,
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valid_buffer, valid_len ) );
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TEST_INVALID_PARAM_RET(
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MBEDTLS_ERR_CCM_BAD_INPUT,
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mbedtls_ccm_encrypt_and_tag( &ctx, valid_len,
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NULL, valid_len,
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valid_buffer, valid_len,
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valid_buffer, valid_buffer,
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valid_buffer, valid_len ) );
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TEST_INVALID_PARAM_RET(
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MBEDTLS_ERR_CCM_BAD_INPUT,
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mbedtls_ccm_encrypt_and_tag( &ctx, valid_len,
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valid_buffer, valid_len,
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NULL, valid_len,
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valid_buffer, valid_buffer,
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valid_buffer, valid_len ) );
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TEST_INVALID_PARAM_RET(
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MBEDTLS_ERR_CCM_BAD_INPUT,
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mbedtls_ccm_encrypt_and_tag( &ctx, valid_len,
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valid_buffer, valid_len,
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valid_buffer, valid_len,
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NULL, valid_buffer,
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valid_buffer, valid_len ) );
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TEST_INVALID_PARAM_RET(
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MBEDTLS_ERR_CCM_BAD_INPUT,
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mbedtls_ccm_encrypt_and_tag( &ctx, valid_len,
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valid_buffer, valid_len,
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valid_buffer, valid_len,
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valid_buffer, NULL,
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valid_buffer, valid_len ) );
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TEST_INVALID_PARAM_RET(
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MBEDTLS_ERR_CCM_BAD_INPUT,
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mbedtls_ccm_encrypt_and_tag( &ctx, valid_len,
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valid_buffer, valid_len,
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valid_buffer, valid_len,
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valid_buffer, valid_buffer,
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NULL, valid_len ) );
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/* mbedtls_ccm_star_encrypt_and_tag() */
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TEST_INVALID_PARAM_RET(
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MBEDTLS_ERR_CCM_BAD_INPUT,
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mbedtls_ccm_star_encrypt_and_tag( NULL, valid_len,
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valid_buffer, valid_len,
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valid_buffer, valid_len,
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valid_buffer, valid_buffer,
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valid_buffer, valid_len) );
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TEST_INVALID_PARAM_RET(
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MBEDTLS_ERR_CCM_BAD_INPUT,
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mbedtls_ccm_star_encrypt_and_tag( &ctx, valid_len,
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NULL, valid_len,
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valid_buffer, valid_len,
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valid_buffer, valid_buffer,
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valid_buffer, valid_len ) );
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TEST_INVALID_PARAM_RET(
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MBEDTLS_ERR_CCM_BAD_INPUT,
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mbedtls_ccm_star_encrypt_and_tag( &ctx, valid_len,
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valid_buffer, valid_len,
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NULL, valid_len,
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valid_buffer, valid_buffer,
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valid_buffer, valid_len ) );
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TEST_INVALID_PARAM_RET(
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MBEDTLS_ERR_CCM_BAD_INPUT,
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mbedtls_ccm_star_encrypt_and_tag( &ctx, valid_len,
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valid_buffer, valid_len,
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valid_buffer, valid_len,
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NULL, valid_buffer,
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valid_buffer, valid_len ) );
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TEST_INVALID_PARAM_RET(
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MBEDTLS_ERR_CCM_BAD_INPUT,
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mbedtls_ccm_star_encrypt_and_tag( &ctx, valid_len,
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valid_buffer, valid_len,
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valid_buffer, valid_len,
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valid_buffer, NULL,
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valid_buffer, valid_len ) );
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TEST_INVALID_PARAM_RET(
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MBEDTLS_ERR_CCM_BAD_INPUT,
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mbedtls_ccm_star_encrypt_and_tag( &ctx, valid_len,
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valid_buffer, valid_len,
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valid_buffer, valid_len,
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valid_buffer, valid_buffer,
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NULL, valid_len ) );
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/* mbedtls_ccm_auth_decrypt() */
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TEST_INVALID_PARAM_RET(
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MBEDTLS_ERR_CCM_BAD_INPUT,
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mbedtls_ccm_auth_decrypt( NULL, valid_len,
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valid_buffer, valid_len,
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valid_buffer, valid_len,
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valid_buffer, valid_buffer,
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valid_buffer, valid_len ) );
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TEST_INVALID_PARAM_RET(
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MBEDTLS_ERR_CCM_BAD_INPUT,
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mbedtls_ccm_auth_decrypt( &ctx, valid_len,
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NULL, valid_len,
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valid_buffer, valid_len,
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valid_buffer, valid_buffer,
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valid_buffer, valid_len ) );
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TEST_INVALID_PARAM_RET(
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MBEDTLS_ERR_CCM_BAD_INPUT,
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mbedtls_ccm_auth_decrypt( &ctx, valid_len,
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valid_buffer, valid_len,
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NULL, valid_len,
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valid_buffer, valid_buffer,
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valid_buffer, valid_len ) );
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TEST_INVALID_PARAM_RET(
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MBEDTLS_ERR_CCM_BAD_INPUT,
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mbedtls_ccm_auth_decrypt( &ctx, valid_len,
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valid_buffer, valid_len,
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valid_buffer, valid_len,
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NULL, valid_buffer,
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valid_buffer, valid_len ) );
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TEST_INVALID_PARAM_RET(
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MBEDTLS_ERR_CCM_BAD_INPUT,
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mbedtls_ccm_auth_decrypt( &ctx, valid_len,
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valid_buffer, valid_len,
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valid_buffer, valid_len,
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valid_buffer, NULL,
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valid_buffer, valid_len ) );
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TEST_INVALID_PARAM_RET(
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MBEDTLS_ERR_CCM_BAD_INPUT,
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mbedtls_ccm_auth_decrypt( &ctx, valid_len,
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valid_buffer, valid_len,
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valid_buffer, valid_len,
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valid_buffer, valid_buffer,
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NULL, valid_len ) );
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/* mbedtls_ccm_star_auth_decrypt() */
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TEST_INVALID_PARAM_RET(
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MBEDTLS_ERR_CCM_BAD_INPUT,
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mbedtls_ccm_star_auth_decrypt( NULL, valid_len,
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valid_buffer, valid_len,
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valid_buffer, valid_len,
|
||||
valid_buffer, valid_buffer,
|
||||
valid_buffer, valid_len ) );
|
||||
TEST_INVALID_PARAM_RET(
|
||||
MBEDTLS_ERR_CCM_BAD_INPUT,
|
||||
mbedtls_ccm_star_auth_decrypt( &ctx, valid_len,
|
||||
NULL, valid_len,
|
||||
valid_buffer, valid_len,
|
||||
valid_buffer, valid_buffer,
|
||||
valid_buffer, valid_len ) );
|
||||
TEST_INVALID_PARAM_RET(
|
||||
MBEDTLS_ERR_CCM_BAD_INPUT,
|
||||
mbedtls_ccm_star_auth_decrypt( &ctx, valid_len,
|
||||
valid_buffer, valid_len,
|
||||
NULL, valid_len,
|
||||
valid_buffer, valid_buffer,
|
||||
valid_buffer, valid_len ) );
|
||||
TEST_INVALID_PARAM_RET(
|
||||
MBEDTLS_ERR_CCM_BAD_INPUT,
|
||||
mbedtls_ccm_star_auth_decrypt( &ctx, valid_len,
|
||||
valid_buffer, valid_len,
|
||||
valid_buffer, valid_len,
|
||||
NULL, valid_buffer,
|
||||
valid_buffer, valid_len ) );
|
||||
TEST_INVALID_PARAM_RET(
|
||||
MBEDTLS_ERR_CCM_BAD_INPUT,
|
||||
mbedtls_ccm_star_auth_decrypt( &ctx, valid_len,
|
||||
valid_buffer, valid_len,
|
||||
valid_buffer, valid_len,
|
||||
valid_buffer, NULL,
|
||||
valid_buffer, valid_len ) );
|
||||
TEST_INVALID_PARAM_RET(
|
||||
MBEDTLS_ERR_CCM_BAD_INPUT,
|
||||
mbedtls_ccm_star_auth_decrypt( &ctx, valid_len,
|
||||
valid_buffer, valid_len,
|
||||
valid_buffer, valid_len,
|
||||
valid_buffer, valid_buffer,
|
||||
NULL, valid_len ) );
|
||||
|
||||
/* mbedtls_ccm_free() */
|
||||
TEST_INVALID_PARAM( mbedtls_ccm_free( NULL ) );
|
||||
|
||||
exit:
|
||||
mbedtls_ccm_free( &ctx );
|
||||
return;
|
||||
}
|
||||
/* END_CASE */
|
||||
|
||||
Loading…
Reference in New Issue
Block a user