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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;
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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, unsigned char *public_key, int public_key_length) {
unsigned char *secret_key_only;
int 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 (public_key_length != NANO_PUBLIC_KEY_LENGTH) {
return(NULL);
}
crypto_sign_public_key(public_key, secret_key_only);
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;
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return(TCL_OK);
/* NOTREACH */
clientData = clientData;
}
static int nano_tcl_secret_key_to_public_key(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]) {
unsigned char *secret_key, *public_key;
int secret_key_length, public_key_length;
if (objc != 2) {
Tcl_WrongNumArgs(interp, 1, objv, "secretKey");
return(TCL_ERROR);
}
secret_key = Tcl_GetByteArrayFromObj(objv[1], &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);
}
NANO_PUBLIC_KEY_LENGTH;
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);
TclNano_Free(public_key);
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;
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);
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);
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return(TCL_OK);
/* NOTREACH */
clientData = clientData;
}
static int nano_tcl_secret_key_to_public_key(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]) {
Tcl_Obj *secret_key;
unsigned char *public_key, public_key_buffer[NANO_PUBLIC_KEY_LENGTH];
int public_key_length;
if (objc != 2) {
Tcl_WrongNumArgs(interp, 1, objv, "secretKey");
return(TCL_ERROR);
}
secret_key = objv[1];
public_key_length = sizeof(public_key_buffer);
public_key = nano_parse_secret_key(secret_key, public_key_buffer, public_key_length);
Tcl_SetObjResult(interp, Tcl_NewByteArrayObj(public_key, public_key_length));
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[NANO_BLOCK_SIGNATURE_LENGTH];
unsigned char public_key_buffer[NANO_PUBLIC_KEY_LENGTH];
unsigned char *data, *secret_key, *public_key;
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);
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_length = sizeof(public_key_buffer);
public_key = nano_parse_secret_key(objv[2], public_key_buffer, public_key_length);
if (!public_key) {
Tcl_SetResult(interp, "Error converting secret key to public key", NULL);
return(TCL_ERROR);
}
crypto_sign(signature, secret_key, public_key, data, data_length);
Tcl_SetObjResult(interp, Tcl_NewByteArrayObj(signature, NANO_BLOCK_SIGNATURE_LENGTH));
return(TCL_OK);
/* NOTREACH */
clientData = clientData;
}
static int nano_tcl_verify_detached(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]) {
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return(TCL_OK);
/* NOTREACH */
clientData = clientData;
}
static int nano_tcl_random_bytes(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]) {
unsigned char *buffer;
int number_of_bytes;
int tgifo_ret;
if (objc != 2) {
Tcl_WrongNumArgs(interp, 1, objv, "numberOfBytes");
return(TCL_ERROR);
}
tgifo_ret = Tcl_GetIntFromObj(interp, objv[1], &number_of_bytes);
if (tgifo_ret != TCL_OK) {
return(tgifo_ret);
}
if (number_of_bytes > 128) {
Tcl_SetResult(interp, "May only request 128 bytes of random data at once", NULL);
return(TCL_ERROR);
}
buffer = TclNano_AttemptAlloc(number_of_bytes);
if (!buffer) {
Tcl_SetResult(interp, "memory allocation failure", NULL);
return(TCL_ERROR);
}
TclNano_Free(buffer);
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return(TCL_OK);
/* NOTREACH */
clientData = clientData;
}
static int nano_tcl_random_bytes(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]) {
unsigned char buffer[128];
int number_of_bytes;
int tgifo_ret;
if (objc != 2) {
Tcl_WrongNumArgs(interp, 1, objv, "numberOfBytes");
return(TCL_ERROR);
}
tgifo_ret = Tcl_GetIntFromObj(interp, objv[1], &number_of_bytes);
if (tgifo_ret != TCL_OK) {
return(tgifo_ret);
}
if (number_of_bytes > 128) {
Tcl_SetResult(interp, "May only request 128 bytes of random data at once", NULL);
return(TCL_ERROR);
}
randombytes(buffer, number_of_bytes);
Tcl_SetObjResult(interp, Tcl_NewByteArrayObj(buffer, number_of_bytes));
return(TCL_OK);
/* NOTREACH */
clientData = clientData;
}
static int nano_tcl_self_test(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]) {
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