arno/trezor-firmware
1
0
Fork 0
mirror of https://github.com/trezor/trezor-firmware.git synced 2024-11-15 20:19:23 +00:00
Code Issues Releases Wiki Activity

bip32: Add ed25519-sha3 & ed25519-keccak

Browse Source
This commit is contained in:
Saleem Rashid 2017-05-19 18:33:21 +01:00 committed by Pavol Rusnak
parent 4cb090169c
commit accae3e7d1
No known key found for this signature in database
GPG Key ID: 91F3B339B9A02A3D
1 changed files with 42 additions and 27 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

69
bip32.c
View File

@ -31,6 +31,7 @@
#include "ecdsa.h"
#include "bip32.h"
#include "sha2.h"
#include "sha3.h"
#include "ripemd160.h"
#include "base58.h"
#include "macros.h"
@ -38,8 +39,9 @@
#include "secp256k1.h"
#include "nist256p1.h"
#include "ed25519.h"
#if USE_ETHEREUM
#include "sha3.h"
#include "ed25519-sha3.h"
#if USE_KECCAK
#include "ed25519-keccak.h"
#endif
const curve_info ed25519_info = {
@ -406,14 +408,21 @@ void hdnode_fill_public_key(HDNode *node)
{
if (node->public_key[0] != 0)
return;
if (node->curve == &ed25519_info) {
node->public_key[0] = 1;
ed25519_publickey(node->private_key, node->public_key + 1);
} else if (node->curve == &curve25519_info) {
node->public_key[0] = 1;
curve25519_scalarmult_basepoint(node->public_key + 1, node->private_key);
} else {
if (node->curve->params) {
ecdsa_get_public_key33(node->curve->params, node->private_key, node->public_key);
} else {
node->public_key[0] = 1;
if (node->curve == &ed25519_info) {
ed25519_publickey(node->private_key, node->public_key + 1);
} else if (node->curve == &ed25519_sha3_info) {
ed25519_publickey_sha3(node->private_key, node->public_key + 1);
#if USE_KECCAK
} else if (node->curve == &ed25519_keccak_info) {
ed25519_publickey_keccak(node->private_key, node->public_key + 1);
#endif
} else if (node->curve == &curve25519_info) {
curve25519_scalarmult_basepoint(node->public_key + 1, node->private_key);
}
}
}
@ -442,36 +451,45 @@ int hdnode_get_ethereum_pubkeyhash(const HDNode *node, uint8_t *pubkeyhash)
// msg_len is the message length
int hdnode_sign(HDNode *node, const uint8_t *msg, uint32_t msg_len, uint8_t *sig, uint8_t *pby, int (*is_canonical)(uint8_t by, uint8_t sig[64]))
{
if (node->curve == &ed25519_info) {
hdnode_fill_public_key(node);
ed25519_sign(msg, msg_len, node->private_key, node->public_key + 1, sig);
return 0;
if (node->curve->params) {
return ecdsa_sign(node->curve->params, node->private_key, msg, msg_len, sig, pby, is_canonical);
} else if (node->curve == &curve25519_info) {
return 1; // signatures are not supported
} else {
return ecdsa_sign(node->curve->params, node->private_key, msg, msg_len, sig, pby, is_canonical);
hdnode_fill_public_key(node);
if (node->curve == &ed25519_info) {
ed25519_sign(msg, msg_len, node->private_key, node->public_key + 1, sig);
} else if (node->curve == &ed25519_sha3_info) {
ed25519_sign_sha3(msg, msg_len, node->private_key, node->public_key + 1, sig);
#if USE_KECCAK
} else if (node->curve == &ed25519_keccak_info) {
ed25519_sign_keccak(msg, msg_len, node->private_key, node->public_key + 1, sig);
#endif
}
return 0;
}
}
int hdnode_sign_digest(HDNode *node, const uint8_t *digest, uint8_t *sig, uint8_t *pby, int (*is_canonical)(uint8_t by, uint8_t sig[64]))
{
if (node->curve == &ed25519_info) {
hdnode_fill_public_key(node);
ed25519_sign(digest, 32, node->private_key, node->public_key + 1, sig);
return 0;
if (node->curve->params) {
return ecdsa_sign_digest(node->curve->params, node->private_key, digest, sig, pby, is_canonical);
} else if (node->curve == &curve25519_info) {
return 1; // signatures are not supported
} else {
return ecdsa_sign_digest(node->curve->params, node->private_key, digest, sig, pby, is_canonical);
return hdnode_sign(node, digest, 32, sig, pby, is_canonical);
}
}
int hdnode_get_shared_key(const HDNode *node, const uint8_t *peer_public_key, uint8_t *session_key, int *result_size)
{
// Use elliptic curve Diffie-Helman to compute shared session key
if (node->curve == &ed25519_info) {
*result_size = 0;
return 1; // ECDH is not supported
if (node->curve->params) {
if (ecdh_multiply(node->curve->params, node->private_key, peer_public_key, session_key) != 0) {
return 1;
}
*result_size = 65;
return 0;
} else if (node->curve == &curve25519_info) {
session_key[0] = 0x04;
if (peer_public_key[0] != 0x40) {
@ -481,11 +499,8 @@ int hdnode_get_shared_key(const HDNode *node, const uint8_t *peer_public_key, ui
*result_size = 33;
return 0;
} else {
if (ecdh_multiply(node->curve->params, node->private_key, peer_public_key, session_key) != 0) {
return 1;
}
*result_size = 65;
return 0;
*result_size = 0;
return 1; // ECDH is not supported
}
}