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#include <tcl.h>
#include <stdint.h>
#include <limits.h>
#include <string.h>
#include "tweetnacl.h"
#include "blake2-supercop.h"
#define NANO_SECRET_KEY_LENGTH (crypto_sign_SECRETKEYBYTES - crypto_sign_PUBLICKEYBYTES)
#define NANO_PUBLIC_KEY_LENGTH (crypto_sign_PUBLICKEYBYTES)
#if 0
#include <sys/random.h>
void randombytes(uint8_t *buffer, uint64_t length) {
ssize_t gr_ret;
while (length > 0) {
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buffer[length - 1] = (length % 256);
length--;
}
return;
}
#define NANO_SECRET_KEY_LENGTH (crypto_sign_SECRETKEYBYTES - crypto_sign_PUBLICKEYBYTES)
#define NANO_PUBLIC_KEY_LENGTH (crypto_sign_PUBLICKEYBYTES)
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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[]) {
int csk_ret;
unsigned char secret_key[crypto_sign_SECRETKEYBYTES], public_key[crypto_sign_PUBLICKEYBYTES];
if (objc != 1) {
Tcl_WrongNumArgs(interp, 1, objv, "");
return(TCL_ERROR);
}
csk_ret = crypto_sign_keypair(public_key, secret_key, 1);
if (csk_ret != 0) {
Tcl_SetResult(interp, "Internal error", NULL);
return(TCL_ERROR);
}
Tcl_SetObjResult(interp, Tcl_NewByteArrayObj(secret_key, NANO_SECRET_KEY_LENGTH));
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");
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/* Initialize Stubs */
tclInitStubs_ret = Tcl_InitStubs(interp, TCL_PATCH_LEVEL, 0);
if (!tclInitStubs_ret) {
return(TCL_ERROR);
}
#endif
Tcl_CreateObjCommand(interp, "::nano::internal::generateKey", nano_tcl_generate_keypair, NULL, NULL);
Tcl_CreateObjCommand(interp, "::nano::internal::signDetached", nano_tcl_sign_detached, NULL, NULL);
Tcl_CreateObjCommand(interp, "::nano::internal::publicKey", nano_tcl_secret_key_to_public_key, NULL, NULL);
Tcl_CreateObjCommand(interp, "::nano::internal::verifyDetached", nano_tcl_verify_detached, NULL, NULL);
Tcl_CreateObjCommand(interp, "::nano::internal::hashData", nano_tcl_hash_data, NULL, NULL);
return(TCL_OK);
}
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