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#define TclNano_PkgProvide(interp, name, version) \
tclcmd_ret = Tcl_PkgProvide(interp, name, version); \
if (tclcmd_ret != TCL_OK) { \
return(tclcmd_ret); \
}
static unsigned char *nano_parse_secret_key(Tcl_Obj *secret_key_only_obj, int *out_key_length) {
unsigned char *secret_key, *public_key, *secret_key_only;
int secret_key_length, secret_key_only_length;
secret_key_only = Tcl_GetByteArrayFromObj(secret_key_only_obj, &secret_key_only_length);
if (secret_key_only_length != NANO_SECRET_KEY_LENGTH) {
return(NULL);
}
if ((NANO_SECRET_KEY_LENGTH + NANO_PUBLIC_KEY_LENGTH) != crypto_sign_SECRETKEYBYTES) {
return(NULL);
}
secret_key_length = crypto_sign_SECRETKEYBYTES;
secret_key = TclNano_AttemptAlloc(secret_key_length);
if (!secret_key) {
return(NULL);
}
memcpy(secret_key, secret_key_only, secret_key_only_length);
public_key = secret_key + secret_key_only_length;
crypto_sign_keypair(public_key, secret_key, 0);
*out_key_length = secret_key_length;
return(secret_key);
}
static int nano_tcl_generate_keypair(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]) {
unsigned char secret_key[crypto_sign_SECRETKEYBYTES], public_key[crypto_sign_PUBLICKEYBYTES];
unsigned char *seed, *buffer, buffer_s[NANO_SECRET_KEY_LENGTH + 4];
long seed_index;
int seed_length, buffer_length;
int csk_ret, tglfo_ret;
if (objc != 1 && objc != 3) {
Tcl_WrongNumArgs(interp, 1, objv, "?seed index?");
return(TCL_ERROR);
}
if (objc == 1) {
csk_ret = crypto_sign_keypair(public_key, secret_key, 1);
if (csk_ret != 0) {
Tcl_SetResult(interp, "Internal error", NULL);
return(TCL_ERROR);
}
} else {
seed = Tcl_GetByteArrayFromObj(objv[1], &seed_length);
if (seed_length != NANO_SECRET_KEY_LENGTH) {
Tcl_SetResult(interp, "Seed is not the right size", NULL);
return(TCL_ERROR);
}
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#define TclNano_PkgProvide(interp, name, version) \
tclcmd_ret = Tcl_PkgProvide(interp, name, version); \
if (tclcmd_ret != TCL_OK) { \
return(tclcmd_ret); \
}
static unsigned char *nano_parse_secret_key(Tcl_Obj *secret_key_only_obj, int *out_key_length) {
unsigned char *public_key, *secret_key_only;
int public_key_length, secret_key_only_length;
secret_key_only = Tcl_GetByteArrayFromObj(secret_key_only_obj, &secret_key_only_length);
if (secret_key_only_length != NANO_SECRET_KEY_LENGTH) {
return(NULL);
}
public_key_length = NANO_PUBLIC_KEY_LENGTH;
public_key = TclNano_AttemptAlloc(public_key_length);
if (!public_key) {
return(NULL);
}
crypto_sign_public_key(public_key, secret_key_only);
*out_key_length = public_key_length;
return(public_key);
}
static int nano_tcl_generate_keypair(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]) {
unsigned char secret_key[NANO_SECRET_KEY_LENGTH], public_key[NANO_PUBLIC_KEY_LENGTH];
unsigned char *seed, *buffer, buffer_s[NANO_SECRET_KEY_LENGTH + 4];
long seed_index;
int seed_length, buffer_length;
int tglfo_ret;
if (objc != 1 && objc != 3) {
Tcl_WrongNumArgs(interp, 1, objv, "?seed index?");
return(TCL_ERROR);
}
if (objc == 1) {
randombytes(secret_key, NANO_SECRET_KEY_LENGTH);
crypto_sign_public_key(public_key, secret_key);
} else {
seed = Tcl_GetByteArrayFromObj(objv[1], &seed_length);
if (seed_length != NANO_SECRET_KEY_LENGTH) {
Tcl_SetResult(interp, "Seed is not the right size", NULL);
return(TCL_ERROR);
}
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public_key = TclNano_AttemptAlloc(public_key_length);
if (!public_key) {
Tcl_SetResult(interp, "Internal error", NULL);
return(TCL_ERROR);
}
crypto_sign_keypair(public_key, secret_key, 0);
Tcl_SetObjResult(interp, Tcl_NewByteArrayObj(public_key, public_key_length));
TclNano_Free(public_key);
return(TCL_OK);
/* NOTREACH */
clientData = clientData;
}
static int nano_tcl_sign_detached(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]) {
int cs_ret;
unsigned char *signature, *data, *secret_key;
unsigned long long signature_length;
int data_length, secret_key_length;
if (objc != 3) {
Tcl_WrongNumArgs(interp, 1, objv, "data secretKey");
return(TCL_ERROR);
}
data = Tcl_GetByteArrayFromObj(objv[1], &data_length);
signature_length = data_length + NANO_BLOCK_SIGNATURE_LENGTH;
if (signature_length >= UINT_MAX) {
Tcl_SetResult(interp, "Input message too long", NULL);
return(TCL_ERROR);
}
secret_key = nano_parse_secret_key(objv[2], &secret_key_length);
if (!secret_key) {
Tcl_SetResult(interp, "Secret key is not the right size", NULL);
return(TCL_ERROR);
}
signature = TclNano_AttemptAlloc(signature_length);
if (!signature) {
TclNano_Free(secret_key);
Tcl_SetResult(interp, "Unable to allocate memory", NULL);
return(TCL_ERROR);
}
cs_ret = crypto_sign(signature, &signature_length, data, data_length, secret_key);
if (cs_ret != 0) {
TclNano_Free(secret_key);
TclNano_Free(signature);
Tcl_SetResult(interp, "crypto_sign failed", NULL);
return(TCL_ERROR);
}
Tcl_SetObjResult(interp, Tcl_NewByteArrayObj(signature, NANO_BLOCK_SIGNATURE_LENGTH));
TclNano_Free(signature);
TclNano_Free(secret_key);
return(TCL_OK);
/* NOTREACH */
clientData = clientData;
}
static int nano_tcl_verify_detached(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]) {
int cso_ret;
unsigned char *signature, *data, *signed_data, *verify_data, *public_key;
int signature_length, data_length, signed_data_length, verify_data_length, public_key_length;
unsigned long long verify_data_length_nacl;
int result;
if (objc != 4) {
Tcl_WrongNumArgs(interp, 1, objv, "data signature publicKey");
return(TCL_ERROR);
}
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public_key = TclNano_AttemptAlloc(public_key_length);
if (!public_key) {
Tcl_SetResult(interp, "Internal error", NULL);
return(TCL_ERROR);
}
crypto_sign_public_key(public_key, secret_key);
Tcl_SetObjResult(interp, Tcl_NewByteArrayObj(public_key, public_key_length));
TclNano_Free(public_key);
return(TCL_OK);
/* NOTREACH */
clientData = clientData;
}
static int nano_tcl_sign_detached(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]) {
unsigned char *signature, *data, *secret_key, *public_key;
unsigned long long signature_length;
int data_length, public_key_length, secret_key_length;
if (objc != 3) {
Tcl_WrongNumArgs(interp, 1, objv, "data secretKey");
return(TCL_ERROR);
}
data = Tcl_GetByteArrayFromObj(objv[1], &data_length);
signature_length = NANO_BLOCK_SIGNATURE_LENGTH;
secret_key = Tcl_GetByteArrayFromObj(objv[2], &secret_key_length);
if (secret_key_length != NANO_SECRET_KEY_LENGTH) {
Tcl_SetResult(interp, "Secret key is not the right size", NULL);
return(TCL_ERROR);
}
public_key = nano_parse_secret_key(objv[2], &public_key_length);
if (!secret_key) {
Tcl_SetResult(interp, "Secret key is not the right size", NULL);
return(TCL_ERROR);
}
signature = TclNano_AttemptAlloc(signature_length);
if (!signature) {
TclNano_Free(public_key);
Tcl_SetResult(interp, "Unable to allocate memory", NULL);
return(TCL_ERROR);
}
crypto_sign(signature, secret_key, public_key, data, data_length);
Tcl_SetObjResult(interp, Tcl_NewByteArrayObj(signature, NANO_BLOCK_SIGNATURE_LENGTH));
TclNano_Free(signature);
TclNano_Free(public_key);
return(TCL_OK);
/* NOTREACH */
clientData = clientData;
}
static int nano_tcl_verify_detached(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]) {
int cc_ret;
unsigned char *signature, *data, *public_key;
int signature_length, data_length, public_key_length;
int result;
if (objc != 4) {
Tcl_WrongNumArgs(interp, 1, objv, "data signature publicKey");
return(TCL_ERROR);
}
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public_key = Tcl_GetByteArrayFromObj(objv[3], &public_key_length);
if (public_key_length != NANO_PUBLIC_KEY_LENGTH) {
Tcl_SetResult(interp, "Public key is not the right size", NULL);
return(TCL_ERROR);
}
signed_data_length = data_length + signature_length;
signed_data = TclNano_AttemptAlloc(signed_data_length);
if (!signed_data) {
Tcl_SetResult(interp, "Internal error", NULL);
return(TCL_ERROR);
}
memcpy(signed_data, signature, signature_length);
memcpy(signed_data + signature_length, data, data_length);
verify_data_length = signed_data_length;
verify_data = TclNano_AttemptAlloc(verify_data_length);
if (!verify_data) {
TclNano_Free(verify_data);
Tcl_SetResult(interp, "Internal error", NULL);
return(TCL_ERROR);
}
verify_data_length_nacl = verify_data_length;
cso_ret = crypto_sign_open(verify_data, &verify_data_length_nacl, signed_data, signed_data_length, public_key);
result = 0;
if (cso_ret == 0) {
result = 1;
}
TclNano_Free(signed_data);
TclNano_Free(verify_data);
Tcl_SetObjResult(interp, Tcl_NewBooleanObj(result));
return(TCL_OK);
/* NOTREACH */
clientData = clientData;
}
static int nano_tcl_hash_data(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]) {
unsigned char *data, result[NANO_BLOCK_SIGNATURE_LENGTH];
int tgifo_ret;
int data_length, result_length;
if (objc < 2 || objc > 3) {
Tcl_WrongNumArgs(interp, 1, objv, "data ?hashLength?");
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public_key = Tcl_GetByteArrayFromObj(objv[3], &public_key_length);
if (public_key_length != NANO_PUBLIC_KEY_LENGTH) {
Tcl_SetResult(interp, "Public key is not the right size", NULL);
return(TCL_ERROR);
}
cc_ret = crypto_check(signature, public_key, data, data_length);
result = 0;
if (!cc_ret) {
result = 1;
}
Tcl_SetObjResult(interp, Tcl_NewBooleanObj(result));
return(TCL_OK);
/* NOTREACH */
clientData = clientData;
}
#if 0
static int nano_tcl_derive_key_from_password(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]) {
argon2_context argon2_context_item;
if (objc != 2) {
Tcl_WrongNumArgs(interp, 1, objv, "password");
return(TCL_ERROR);
}
unsigned char password[] = {0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01}
unsigned char salt[] = {0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02}
unsigned char secret[] = {0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03}
unsigned char ad[] = {0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04}
unsigned char phd[] = {0x24, 0xfd, 0xe9, 0x5a, 0x9d, 0xf5, 0x49, 0xd0, 0x02, 0xbd, 0x21, 0xb8, 0xb3, 0x45, 0x57, 0xe0, 0xf2, 0x53, 0x03, 0xd6, 0x53, 0x12, 0xf4, 0xc0, 0x7e, 0x1b, 0x0f, 0x12, 0x75, 0xb3, 0xe9, 0xd9, 0x45, 0xe9, 0x7b, 0x66, 0xbf, 0xe4, 0x27, 0x20, 0x6e, 0xca, 0xc7, 0xea, 0x2f, 0xfb, 0x1b, 0xe2, 0xc8, 0x3a, 0x15, 0xa6, 0x64, 0xb2, 0x4b, 0x4f, 0x6b, 0xc3, 0x34, 0x0d, 0x24, 0x89, 0x0b, 0x13}
unsigned char final_tag[] = {0xf8, 0x7c, 0x95, 0x96, 0xbd, 0xbf, 0x75, 0x0b, 0xfb, 0x35, 0x3a, 0x89, 0x70, 0xe5, 0x44, 0x1a, 0x70, 0x24, 0x3e, 0xb4, 0x90, 0x30, 0xdf, 0xe2, 0x74, 0xd9, 0xad, 0x4e, 0x37, 0x0e, 0x38, 0x9b}
argon2_context_item.pwd = password;
argon2_context_item.pwdlen = sizeof(password);
argon2_context_item.salt = salt;
argon2_context_item.saltlen = sizeof(salt);
argon2_context_item.secret = secret;
argon2_context_item.secretlen = sizeof(secret);
argon2_context_item.ad = ad;
argon2_context_item.adlen = sizeof(ad);
argon2_context_item.t_cost = 3;
argon2_context_item.m_cost = 16;
argon2_context_item.lanes = 4;
argon2_context_item.threads = 4;
argon2_context_item.version = ARGON2_VERSION_NUMBER;
argon2_context_item.allocate_cbk = NULL;
argon2_context_item.free_cbk = NULL;
argon2_context_item.flags = 0;
}
#endif
static int nano_tcl_hash_data(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]) {
unsigned char *data, result[NANO_BLOCK_SIGNATURE_LENGTH];
int tgifo_ret;
int data_length, result_length;
if (objc < 2 || objc > 3) {
Tcl_WrongNumArgs(interp, 1, objv, "data ?hashLength?");
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if (result_length > sizeof(result)) {
Tcl_SetResult(interp, "Hash length too large", NULL);
return(TCL_ERROR);
}
blake2b(result, result_length, data, data_length, NULL, 0);
} else {
/*
* Default to the same as the cryptographic primitive
*/
crypto_hash(result, data, data_length);
result_length = NANO_BLOCK_SIGNATURE_LENGTH;
}
Tcl_SetObjResult(interp, Tcl_NewByteArrayObj(result, result_length));
return(TCL_OK);
/* NOTREACH */
clientData = clientData;
}
static int nano_validate_work(const unsigned char *blockhash, const unsigned char *work, uint64_t workMin) {
unsigned char workReversed[NANO_WORK_VALUE_LENGTH], workCheck[NANO_WORK_HASH_LENGTH];
unsigned int idxIn, idxOut;
blake2b_state workhash_state;
uint64_t workValue;
int blake2_ret;
idxIn = sizeof(workReversed) - 1;
idxOut = 0;
while (idxOut < sizeof(workReversed)) {
workReversed[idxOut] = work[idxIn];
idxOut++;
idxIn--;
}
blake2_ret = blake2b_init(&workhash_state, sizeof(workCheck));
if (blake2_ret != 0) {
return(0);
}
blake2_ret = blake2b_update(&workhash_state, workReversed, sizeof(workReversed));
if (blake2_ret != 0) {
return(0);
}
blake2_ret = blake2b_update(&workhash_state, blockhash, NANO_BLOCK_HASH_LENGTH);
if (blake2_ret != 0) {
return(0);
}
blake2_ret = blake2b_final(&workhash_state, workCheck, sizeof(workCheck));
if (blake2_ret != 0) {
return(0);
}
workValue = 0;
for (idxIn = sizeof(workCheck); idxIn > 0; idxIn--) {
workValue <<= 8;
workValue |= workCheck[idxIn - 1];
}
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if (result_length > sizeof(result)) {
Tcl_SetResult(interp, "Hash length too large", NULL);
return(TCL_ERROR);
}
crypto_blake2b_general(result, result_length, NULL, 0, data, data_length);
} else {
/*
* Default to the same as the cryptographic primitive
*/
crypto_blake2b(result, data, data_length);
result_length = NANO_BLOCK_SIGNATURE_LENGTH;
}
Tcl_SetObjResult(interp, Tcl_NewByteArrayObj(result, result_length));
return(TCL_OK);
/* NOTREACH */
clientData = clientData;
}
static int nano_validate_work(const unsigned char *blockhash, const unsigned char *work, uint64_t workMin) {
unsigned char workReversed[NANO_WORK_VALUE_LENGTH], workCheck[NANO_WORK_HASH_LENGTH];
unsigned int idxIn, idxOut;
crypto_blake2b_ctx workhash_state;
uint64_t workValue;
idxIn = sizeof(workReversed) - 1;
idxOut = 0;
while (idxOut < sizeof(workReversed)) {
workReversed[idxOut] = work[idxIn];
idxOut++;
idxIn--;
}
crypto_blake2b_general_init(&workhash_state, sizeof(workCheck), NULL, 0);
crypto_blake2b_update(&workhash_state, workReversed, sizeof(workReversed));
crypto_blake2b_update(&workhash_state, blockhash, NANO_BLOCK_HASH_LENGTH);
crypto_blake2b_final(&workhash_state, workCheck);
workValue = 0;
for (idxIn = sizeof(workCheck); idxIn > 0; idxIn--) {
workValue <<= 8;
workValue |= workCheck[idxIn - 1];
}
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TclNano_CreateObjCommand(interp, "::nano::internal::selfTest", nano_tcl_self_test);
TclNano_CreateObjCommand(interp, "::nano::internal::generateKey", nano_tcl_generate_keypair);
TclNano_CreateObjCommand(interp, "::nano::internal::generateSeed", nano_tcl_generate_seed);
TclNano_CreateObjCommand(interp, "::nano::internal::publicKey", nano_tcl_secret_key_to_public_key);
TclNano_CreateObjCommand(interp, "::nano::internal::signDetached", nano_tcl_sign_detached);
TclNano_CreateObjCommand(interp, "::nano::internal::verifyDetached", nano_tcl_verify_detached);
TclNano_CreateObjCommand(interp, "::nano::internal::hashData", nano_tcl_hash_data);
TclNano_CreateObjCommand(interp, "::nano::internal::validateWork", nano_tcl_validate_work);
TclNano_CreateObjCommand(interp, "::nano::internal::generateWork", nano_tcl_generate_work);
TclNano_CreateObjCommand(interp, "::nano::internal::randomBytes", nano_tcl_random_bytes);
TclNano_Eval(interp, nanoInitScript);
TclNano_PkgProvide(interp, "nano", PACKAGE_VERSION);
return(TCL_OK);
}
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TclNano_CreateObjCommand(interp, "::nano::internal::selfTest", nano_tcl_self_test);
TclNano_CreateObjCommand(interp, "::nano::internal::generateKey", nano_tcl_generate_keypair);
TclNano_CreateObjCommand(interp, "::nano::internal::generateSeed", nano_tcl_generate_seed);
TclNano_CreateObjCommand(interp, "::nano::internal::publicKey", nano_tcl_secret_key_to_public_key);
TclNano_CreateObjCommand(interp, "::nano::internal::signDetached", nano_tcl_sign_detached);
TclNano_CreateObjCommand(interp, "::nano::internal::verifyDetached", nano_tcl_verify_detached);
TclNano_CreateObjCommand(interp, "::nano::internal::hashData", nano_tcl_hash_data);
// TclNano_CreateObjCommand(interp, "::nano::internal::deriveKeyFromPassword", nano_tcl_derive_key_from_password);
TclNano_CreateObjCommand(interp, "::nano::internal::validateWork", nano_tcl_validate_work);
TclNano_CreateObjCommand(interp, "::nano::internal::generateWork", nano_tcl_generate_work);
TclNano_CreateObjCommand(interp, "::nano::internal::randomBytes", nano_tcl_random_bytes);
TclNano_Eval(interp, nanoInitScript);
TclNano_PkgProvide(interp, "nano", PACKAGE_VERSION);
return(TCL_OK);
}
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