arno/trezor-firmware
1
0
Fork 0
mirror of https://github.com/trezor/trezor-firmware.git synced 2024-12-22 22:38:08 +00:00
Code Issues Releases Wiki Activity

rework SignIdentity signing

Browse Source
This commit is contained in:
Pavol Rusnak 2015-07-04 23:34:26 +02:00
parent eaf209d999
commit e4d86a49ab
1 changed files with 7 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
firmware/fsm.c
View File

@ -697,26 +697,18 @@ void fsm_msgSignIdentity(SignIdentity *msg)
}
}
bool sign_ssh = false;
if (msg->identity.has_proto) {
sign_ssh = (strcmp(msg->identity.proto, "ssh") == 0);
}
uint8_t message_bytes[256 + 256];
memcpy(message_bytes, msg->challenge_hidden.bytes, msg->challenge_hidden.size);
int message_size = msg->challenge_hidden.size;
bool sign_ssh = msg->identity.has_proto && (strcmp(msg->identity.proto, "ssh") == 0);
int result = 0;
if (sign_ssh) {
// SSH doesn't sign visual challenge.
if (sign_ssh) { // SSH does not sign visual challenge
layoutProgressSwipe("Signing SSH", 0);
result = sshMessageSign(message_bytes, message_size, node->private_key, resp->signature.bytes);
result = sshMessageSign(msg->challenge_hidden.bytes, msg->challenge_hidden.size, node->private_key, resp->signature.bytes);
} else {
const int len = strlen(msg->challenge_visual);
memcpy(message_bytes + message_size, msg->challenge_visual, len);
message_size = message_size + len;
uint8_t digest[64];
sha256_Raw(msg->challenge_hidden.bytes, msg->challenge_hidden.size, digest);
sha256_Raw((const uint8_t *)msg->challenge_visual, strlen(msg->challenge_visual), digest + 32);
layoutProgressSwipe("Signing", 0);
result = cryptoMessageSign(message_bytes, message_size, node->private_key, resp->signature.bytes);
result = cryptoMessageSign(digest, 64, node->private_key, resp->signature.bytes);
}
if (result == 0) {