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Fix Cashu hash_to_curve to NUT-00 spec and align live helper for send-proof compatibility

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laantungir
2026-03-20 15:30:09 -04:00
parent f7e179dd85
commit 303013a518
5 changed files with 17 additions and 26 deletions
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VERSION
+1 -1
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@@ -1 +1 @@
0.5.8
0.5.9
nostr_core/cashu_mint.c
+7 -11
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@@ -1797,14 +1797,15 @@ static int cashu_hash_to_curve_pubkey(const char* secret, nostr_secp256k1_pubkey
}
unsigned char candidate[33] = {0};
for (int counter = 0; counter < 1024; counter++) {
for (int counter = 0; counter < 65536; counter++) {
unsigned char h[32] = {0};
unsigned char data[36] = {0};
memcpy(data, digest, 32);
data[32] = (unsigned char)((counter >> 24) & 0xff);
data[33] = (unsigned char)((counter >> 16) & 0xff);
unsigned char data[37] = {0};
data[0] = 0x02;
memcpy(data + 1, digest, 32);
data[33] = (unsigned char)(counter & 0xff);
data[34] = (unsigned char)((counter >> 8) & 0xff);
data[35] = (unsigned char)(counter & 0xff);
data[35] = (unsigned char)((counter >> 16) & 0xff);
data[36] = (unsigned char)((counter >> 24) & 0xff);
if (nostr_sha256(data, sizeof(data), h) != 0) {
return NOSTR_ERROR_CRYPTO_FAILED;
}
@@ -1814,11 +1815,6 @@ static int cashu_hash_to_curve_pubkey(const char* secret, nostr_secp256k1_pubkey
if (nostr_secp256k1_ec_pubkey_parse(out_y, candidate, sizeof(candidate))) {
return NOSTR_SUCCESS;
}
candidate[0] = 0x03;
if (nostr_secp256k1_ec_pubkey_parse(out_y, candidate, sizeof(candidate))) {
return NOSTR_SUCCESS;
}
}
return NOSTR_ERROR_CRYPTO_FAILED;
nostr_core/nostr_core.h
+2 -2
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@@ -2,10 +2,10 @@
#define NOSTR_CORE_H
// Version information (auto-updated by increment_and_push.sh)
#define VERSION "v0.5.8"
#define VERSION "v0.5.9"
#define VERSION_MAJOR 0
#define VERSION_MINOR 5
#define VERSION_PATCH 8
#define VERSION_PATCH 9
/*
* NOSTR Core Library - Complete API Reference
tests/nip60_live_receive_test
BIN
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tests/nip60_live_receive_test.c
+7 -12
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@@ -36,14 +36,15 @@ static int secret_to_Y_hex(const char* secret, char out_Y_hex[67]) {
}
unsigned char candidate[33] = {0};
for (int counter = 0; counter < 1024; counter++) {
for (int counter = 0; counter < 65536; counter++) {
unsigned char h[32] = {0};
unsigned char data[36] = {0};
memcpy(data, digest, 32);
data[32] = (unsigned char)((counter >> 24) & 0xff);
data[33] = (unsigned char)((counter >> 16) & 0xff);
unsigned char data[37] = {0};
data[0] = 0x02;
memcpy(data + 1, digest, 32);
data[33] = (unsigned char)(counter & 0xff);
data[34] = (unsigned char)((counter >> 8) & 0xff);
data[35] = (unsigned char)(counter & 0xff);
data[35] = (unsigned char)((counter >> 16) & 0xff);
data[36] = (unsigned char)((counter >> 24) & 0xff);
if (nostr_sha256(data, sizeof(data), h) != 0) {
return NOSTR_ERROR_CRYPTO_FAILED;
@@ -57,12 +58,6 @@ static int secret_to_Y_hex(const char* secret, char out_Y_hex[67]) {
nostr_bytes_to_hex(candidate, sizeof(candidate), out_Y_hex);
return NOSTR_SUCCESS;
}
candidate[0] = 0x03;
if (nostr_secp256k1_ec_pubkey_parse(&pub, candidate, sizeof(candidate))) {
nostr_bytes_to_hex(candidate, sizeof(candidate), out_Y_hex);
return NOSTR_SUCCESS;
}
}
return NOSTR_ERROR_CRYPTO_FAILED;