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add ECDSA verification interface (#10)
* add ECDSA verification interface * update firmware version to 1.5.0
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,101 @@ | ||
| #include <stdbool.h> | ||
| #include <stdint.h> | ||
| #include <string.h> | ||
| #include "nrf_crypto.h" | ||
| #include "nrf_crypto_ecc.h" | ||
| #include "nrf_crypto_error.h" | ||
| #include "nrf_crypto_ecdsa.h" | ||
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| ret_code_t generate_ecdsa_keypair(uint8_t *pri_key, uint8_t *pubkey){ | ||
| ret_code_t err_code = NRF_SUCCESS; | ||
| nrf_crypto_ecc_key_pair_generate_context_t context; | ||
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| size_t private_key_size = 32; | ||
| size_t public_key_size = 64; | ||
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| uint8_t sk[32],pk[64]; | ||
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| nrf_crypto_ecc_private_key_t private_key; | ||
| nrf_crypto_ecc_public_key_t public_key; | ||
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| err_code = nrf_crypto_ecc_key_pair_generate(&context, | ||
| &g_nrf_crypto_ecc_secp256k1_curve_info, | ||
| &private_key, | ||
| &public_key); | ||
| if(err_code != NRF_SUCCESS){ | ||
| return err_code; | ||
| } | ||
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| err_code = nrf_crypto_ecc_private_key_to_raw(&private_key, | ||
| sk, | ||
| &private_key_size); | ||
| if(err_code != NRF_SUCCESS){ | ||
| return err_code; | ||
| } | ||
|
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| err_code = nrf_crypto_ecc_public_key_to_raw(&public_key, | ||
| pk, | ||
| &public_key_size); | ||
| if(err_code != NRF_SUCCESS){ | ||
| return err_code; | ||
| } | ||
| nrf_crypto_internal_swap_endian(pri_key,sk,32); | ||
| nrf_crypto_internal_double_swap_endian(pubkey,pk,32); | ||
| return NRF_SUCCESS; | ||
|
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| } | ||
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| ret_code_t sign_ecdsa(uint8_t *pri_key, uint8_t *hash, uint8_t *signature){ | ||
| ret_code_t err_code = NRF_SUCCESS; | ||
| nrf_crypto_ecdsa_sign_context_t context; | ||
| size_t signature_size = 64; | ||
| nrf_crypto_ecc_private_key_t private_key; | ||
|
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| uint8_t sk[32],sign[64],hash1[32]; | ||
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| nrf_crypto_internal_swap_endian(sk,pri_key,32); | ||
| nrf_crypto_internal_swap_endian(hash1,hash,32); | ||
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| err_code = nrf_crypto_ecc_private_key_from_raw(&g_nrf_crypto_ecc_secp256k1_curve_info, | ||
| &private_key, | ||
| sk, | ||
| 32); | ||
| if(err_code != NRF_SUCCESS){ | ||
| return err_code; | ||
| } | ||
|
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| err_code = nrf_crypto_ecdsa_sign(&context, | ||
| &private_key, | ||
| hash1, | ||
| 32, | ||
| sign, | ||
| &signature_size); | ||
| if(err_code != NRF_SUCCESS){ | ||
| return err_code; | ||
| } | ||
| nrf_crypto_internal_double_swap_endian(signature,sign,32); | ||
| return NRF_SUCCESS; | ||
| } | ||
|
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| ret_code_t sign_ecdsa_msg(uint8_t *pri_key, uint8_t *msg, uint32_t msg_len, uint8_t *signature){ | ||
| ret_code_t err_code = NRF_SUCCESS; | ||
| nrf_crypto_hash_context_t hash_context = {0}; | ||
| uint8_t hash[32]; | ||
| size_t hash_len = 32; | ||
|
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| err_code = nrf_crypto_hash_calculate(&hash_context, | ||
| &g_nrf_crypto_hash_sha256_info, | ||
| msg, | ||
| msg_len, | ||
| hash, | ||
| &hash_len); | ||
| if(err_code != NRF_SUCCESS){ | ||
| return err_code; | ||
| } | ||
|
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| err_code = sign_ecdsa(pri_key,hash,signature); | ||
| if(err_code != NRF_SUCCESS){ | ||
| return err_code; | ||
| } | ||
| return NRF_SUCCESS; | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,15 @@ | ||
| #ifndef __NORDIC_52832_ECDSA_ | ||
| #define __NORDIC_52832_ECDSA_ | ||
|
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| typedef struct { | ||
| uint32_t key_lock_flag; | ||
| uint32_t key_flag; | ||
| uint8_t private_key[32]; | ||
| uint8_t public_key[64]; | ||
| } ecdsa_key_info_t; | ||
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| ret_code_t generate_ecdsa_keypair(uint8_t *pri_key, uint8_t *pubkey); | ||
| ret_code_t sign_ecdsa(uint8_t *pri_key, uint8_t *hash, uint8_t *signature); | ||
| ret_code_t sign_ecdsa_msg(uint8_t *pri_key, uint8_t *msg, uint32_t msg_len, uint8_t *signature); | ||
|
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||
| #endif |
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