Example for the mcuxClEcc component EdDsa signature generation using the test vectors from "TEST SHA(abc)" from Section 7.1 of IRTF rfc 8032
#include <mcuxClCore_Examples.h>
#include <mcuxClExample_Session_Helper.h>
#include <mcuxClExample_RNG_Helper.h>
#include <mcuxClExample_ELS_Helper.h>
#define RAM_START_ADDRESS MCUXCLPKC_RAM_START_ADDRESS
#define MAX_CPUWA_SIZE MCUXCLEXAMPLE_MAX(MCUXCLECC_EDDSA_GENERATEKEYPAIR_ED25519_WACPU_SIZE, \
MCUXCLECC_EDDSA_GENERATESIGNATURE_ED25519_WACPU_SIZE)
#define MAX_PKCWA_SIZE MCUXCLEXAMPLE_MAX(MCUXCLECC_EDDSA_GENERATEKEYPAIR_ED25519_WAPKC_SIZE, \
MCUXCLECC_EDDSA_GENERATESIGNATURE_ED25519_WAPKC_SIZE)
{
0x83u, 0x3fu, 0xe6u, 0x24u, 0x09u, 0x23u, 0x7bu, 0x9du,
0x62u, 0xecu, 0x77u, 0x58u, 0x75u, 0x20u, 0x91u, 0x1eu,
0x9au, 0x75u, 0x9cu, 0xecu, 0x1du, 0x19u, 0x75u, 0x5bu,
0x7du, 0xa9u, 0x01u, 0xb9u, 0x6du, 0xcau, 0x3du, 0x42u
};
{
0xDCu, 0x2Au, 0x44u, 0x59u, 0xE7u, 0x36u, 0x96u, 0x33u,
0xA5u, 0x2Bu, 0x1Bu, 0xF2u, 0x77u, 0x83u, 0x9Au, 0x00u,
0x20u, 0x10u, 0x09u, 0xA3u, 0xEFu, 0xBFu, 0x3Eu, 0xCBu,
0x69u, 0xBEu, 0xA2u, 0x18u, 0x6Cu, 0x26u, 0xB5u, 0x89u,
0x09u, 0x35u, 0x1Fu, 0xC9u, 0xACu, 0x90u, 0xB3u, 0xECu,
0xFDu, 0xFBu, 0xC7u, 0xC6u, 0x64u, 0x31u, 0xE0u, 0x30u,
0x3Du, 0xCAu, 0x17u, 0x9Cu, 0x13u, 0x8Au, 0xC1u, 0x7Au,
0xD9u, 0xBEu, 0xF1u, 0x17u, 0x73u, 0x31u, 0xA7u, 0x04u
};
static const uint8_t pMessage[] __attribute__ ((aligned (4))) =
{
0xDDu, 0xAFu, 0x35u, 0xA1u, 0x93u, 0x61u, 0x7Au, 0xBAu,
0xCCu, 0x41u, 0x73u, 0x49u, 0xAEu, 0x20u, 0x41u, 0x31u,
0x12u, 0xE6u, 0xFAu, 0x4Eu, 0x89u, 0xA9u, 0x7Eu, 0xA2u,
0x0Au, 0x9Eu, 0xEEu, 0xE6u, 0x4Bu, 0x55u, 0xD3u, 0x9Au,
0x21u, 0x92u, 0x99u, 0x2Au, 0x27u, 0x4Fu, 0xC1u, 0xA8u,
0x36u, 0xBAu, 0x3Cu, 0x23u, 0xA3u, 0xFEu, 0xEBu, 0xBDu,
0x45u, 0x4Du, 0x44u, 0x23u, 0x64u, 0x3Cu, 0xE8u, 0x0Eu,
0x2Au, 0x9Au, 0xC9u, 0x4Fu, 0xA5u, 0x4Cu, 0xA4u, 0x9Fu
};
MCUXCLEXAMPLE_FUNCTION(mcuxClEcc_EdDSA_GenerateSignature_Ed25519_example)
{
{
return MCUXCLEXAMPLE_STATUS_ERROR;
}
MCUXCLEXAMPLE_ALLOCATE_AND_INITIALIZE_SESSION(&session, MAX_CPUWA_SIZE, MAX_PKCWA_SIZE);
MCUXCLEXAMPLE_ALLOCATE_AND_INITIALIZE_RNG(&session, 0u, mcuxClRandomModes_Mode_ELS_Drbg);
uint8_t privKeyDesc[MCUXCLKEY_DESCRIPTOR_SIZE];
&session,
privKey,
sizeof(pPrivKeyData)));
{
return MCUXCLEXAMPLE_STATUS_ERROR;
}
uint8_t pubKeyDesc[MCUXCLKEY_DESCRIPTOR_SIZE];
&session,
pubKey,
sizeof(pPubKeyData)));
{
return MCUXCLEXAMPLE_STATUS_ERROR;
}
&session,
pPrivKeyInput));
{
return MCUXCLEXAMPLE_STATUS_ERROR;
}
&session,
privKey,
pubKey));
{
return MCUXCLEXAMPLE_STATUS_ERROR;
}
uint32_t signatureSize = 0u;
&session,
privKey,
pMessage,
sizeof(pMessage),
signatureBuffer,
&signatureSize));
{
return MCUXCLEXAMPLE_STATUS_ERROR;
}
&session,
pubKey,
pMessage,
sizeof(pMessage),
(const uint8_t*)signatureBuffer,
signatureSize
));
{
return MCUXCLEXAMPLE_STATUS_ERROR;
}
if(!mcuxClExample_Session_Clean(&session))
{
return MCUXCLEXAMPLE_STATUS_ERROR;
}
if(!mcuxClExample_Els_Disable())
{
return MCUXCLEXAMPLE_STATUS_ERROR;
}
return MCUXCLEXAMPLE_STATUS_OK;
}