This example uses the PSA Crypto API to perform Authenticated Encryption with Associated Data (AEAD) operations on the supported device.
The example redirects standard I/O to the virtual serial port (VCOM) of the kit. By default, the serial port setting is 115200 bps and 8-N-1 configuration.
Except for the Series 1 Cortex-M0+ device, the example has been instrumented with code to count the number of clock cycles spent in different operations. The results are printed on the VCOM serial port console. This feature can be disabled by defining PSA_CRYPTO_PRINT=0
(default is 1) in the IDE setting (Preprocessor->Defined symbols
).
The following key storages are supported in this example:
The following key sizes are supported in this example:
The following payload sizes are supported in this example:
PLAIN_MSG_SIZE
/16PLAIN_MSG_SIZE
/4PLAIN_MSG_SIZE
The default PLAIN_MSG_SIZE
is 4096
, it is defined in app_psa_crypto_aead.h
.
The following AEAD algorithms are supported in this example:
PSA_ALG_CCM
(single-part)PSA_ALG_GCM
(single-part)PSA_ALG_CHACHA20_POLY1305
(single-part)The PSA_ALG_CHACHA20_POLY1305
can only use a 256-bit key.
The following PSA Crypto APIs are used in this example:
psa_crypto_init
psa_key_attributes_init
psa_set_key_type
psa_set_key_bits
psa_set_key_usage_flags
psa_set_key_algorithm
psa_set_key_id
psa_set_key_lifetime
psa_generate_key
psa_get_key_attributes
psa_get_key_algorithm
psa_reset_key_attributes
psa_destroy_key
psa_generate_random
psa_hash_compute
psa_hash_compare
psa_aead_encrypt
psa_aead_decrypt
mbedtls_psa_crypto_free
Adapter Firmware
under General Device Information in Simplicity Studio 5 Users Guide).Secure Firmware
under General Device Information in Simplicity Studio 5 Users Guide).Device Console
in Simplicity Studio 5, Line terminator:
must be set to None
).Platform()
checkbox to browse the platform examples).PERSISTENT_KEY_ID
value in app_process.h
if this key ID had already existed in NVM3.Optimize for debugging (-Og)
on Simplicity IDE and None
on IAR Embedded Workbench.