Runtime error for ECDSA demo code

RE: Runtime error for ECDSA demo code

Yong — Wed, 14 Aug 2024 05:37:08 GMT

#ifndef NRF_CRYPTO_RNG_STATIC_MEMORY_BUFFERS_ENABLED #define NRF_CRYPTO_RNG_STATIC_MEMORY_BUFFERS_ENABLED 1 #endif

#ifndef NRF_CRYPTO_RNG_AUTO_INIT_ENABLED #define NRF_CRYPTO_RNG_AUTO_INIT_ENABLED 1 #endif

I enabled both configurations, but still returned 0x8516;

nrf_crypto_ecdh_secp256r1_shared_secret_t shared;
size_t shared_size = sizeof(shared);
nrf_crypto_ecdh_context_t ecdh_context;

// 计算共享密钥
ret_code_t err_code = nrf_crypto_ecdh_compute(
&ecdh_context,
&ctl_private_key,
&other_public_key,
shared, &shared_size);
if (err_code != NRF_SUCCESS)
{
NRF_LOG_ERROR("Failed to compute shared secret. Error: 0x%X", err_code);
DEMO_ERROR_CHECK(err_code);
APP_ERROR_CHECK(err_code);
}

RE: Runtime error for ECDSA demo code

abhibera — Fri, 08 Feb 2019 07:55:42 GMT

Found a fix. I was missing #defines from the sdk_config.h file

//  nrf_crypto_rng - RNG Configuration

//==========================================================
//  NRF_CRYPTO_RNG_STATIC_MEMORY_BUFFERS_ENABLED  - Use static memory buffers for context and temporary init buffer.
 

//  Always recommended when using the nRF HW RNG as the context and temporary buffers are small. Consider disabling if using the CC310 RNG in a RAM constrained application. In this case, memory must be provided to nrf_crypto_rng_init, or it can be allocated internally provided that NRF_CRYPTO_ALLOCATOR does not allocate memory on the stack.

#ifndef NRF_CRYPTO_RNG_STATIC_MEMORY_BUFFERS_ENABLED
#define NRF_CRYPTO_RNG_STATIC_MEMORY_BUFFERS_ENABLED 1
#endif

//  NRF_CRYPTO_RNG_AUTO_INIT_ENABLED  - Initialize the RNG module automatically when nrf_crypto is initialized.
 

//  Automatic initialization is only supported with static or internally allocated context and temporary memory.

#ifndef NRF_CRYPTO_RNG_AUTO_INIT_ENABLED
#define NRF_CRYPTO_RNG_AUTO_INIT_ENABLED 1
#endif

Tip for Nordic SDK Team: Please don't make such a long and confusing sdk_config.h file with #defines we cannot possibly know about in advance. A better way would be to split sdk_config.h into multiple header files and include all necessary defines for each module. This way we will not miss out.

RE: Runtime error for ECDSA demo code

abhibera — Fri, 08 Feb 2019 07:24:02 GMT

Found that the error is taking place in nrf_crypto_ecdsa.c at Line 386

result = backend_implementation(p_context, p_private_key, p_hash, hash_size, p_signature);

The call to the backend_implementation function is returning error code 0x8516. I haven't been able to find any description for this.

Am I missing something in sdk_config.h that is causing this error?