51 lines
1.3 KiB
C
51 lines
1.3 KiB
C
#include "crypto.h"
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#include "system.h"
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#include <mbedtls/build_info.h>
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#include <mbedtls/platform.h>
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#include <mbedtls/entropy.h>
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#include <mbedtls/ctr_drbg.h>
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#include <mbedtls/ecdsa.h>
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#include <mbedtls/sha256.h>
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#include <mbedtls/pk.h>
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/*
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* Uncomment to force use of a specific curve
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*/
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#define ECPARAMS MBEDTLS_ECP_DP_SECP256R1
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bool crypto_gen_priv_key()
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{
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int ret = 1;
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const char *pers = "ecdsa";
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mbedtls_entropy_context entropy;
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mbedtls_entropy_init(&entropy);
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mbedtls_ecdsa_context ctx_sign;
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mbedtls_ecdsa_init(&ctx_sign);
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mbedtls_ctr_drbg_context ctr_drbg;
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if ((ret = mbedtls_ctr_drbg_seed(&ctr_drbg, mbedtls_entropy_func, &entropy,
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(const unsigned char *)pers,
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strlen(pers))) != 0)
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{
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mbedtls_printf(" failed\n ! mbedtls_ctr_drbg_seed returned %d\n", ret);
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reboot();
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}
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// Generate private key
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if ((ret = mbedtls_ecdsa_genkey(&ctx_sign, ECPARAMS,
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mbedtls_ctr_drbg_random, &ctr_drbg)) != 0)
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{
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mbedtls_printf(" failed\n ! mbedtls_ecdsa_genkey returned %d\n", ret);
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reboot();
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}
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mbedtls_pk_context key_ctx;
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mbedtls_ecp_gen_keypair
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mbedtls_pk_write_key_pem()
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} |