91 lines
1.5 KiB
C
91 lines
1.5 KiB
C
#include "layer2.h"
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//RIOT core
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void ROMprotocol(void)
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{
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printf("Hello function!\n");
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//readUDS function
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uint8_t * CDIKEY = calloc(1, sizeof(uint8_t)*CDI_KEY_SIZE);
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_calcCDIKEY(CDIKEY);
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for(int i = 0; i < CDI_KEY_SIZE; i++)
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printf("%x",CDIKEY[i]);
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printf(" : CDIKEY main\n");
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printf("USE_ECC %d\n", USE_ECC);
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deriveDeviceIDKeyPair(CDIKEY, USE_ECC);
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deriveDeviceIDKeyPair(CDIKEY, !USE_ECC);
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printf("pass 100\n");
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return;
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}
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void seedRNGSource(uint8_t * CDIKEY)
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{
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//srand(); lib fun call //https://stackoverflow.com/questions/55927662/generate-every-time-same-rsa-key-with-c
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//ctr_drbg //programs/test/benchmark.c:705
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//hmac_drbg
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//seed rng with CDIKEY
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//init
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//drbg seed
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return;
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}
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void deriveDeviceIDKeyPair(uint8_t * CDIKEY, int isECC)
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{
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//firt generate ECC/RA key.
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//check for deterministic consistency
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//seed RNGs with CDI
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//let's see how it goes
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//add entropy source?
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//seed RNG
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//create ctx
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//init
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//gen keypair
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//return pubkey and privkey both to L2?
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if(isECC)
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{
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mbedtls_mpi secret;
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mbedtls_mpi_init(&secret);
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mbedtls_ecp_point Public;
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mbedtls_ecp_point_init(&Public);
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//return pubkey and privkey both to L2?
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deriveECCKeyPair(&secret, &Public);
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//secret and Public contain raw key inormation of generated keys
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//Public also needs group and context to handle ECP
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//Converting raw info to PEM is not easible like this
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return;
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}
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else
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{
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deriveRSAKeyPair();
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return;
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}
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} |