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add borromean + fix mlsag

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This commit is contained in:
Boog900
2023-05-31 19:32:47 +01:00
parent d8b8ce9837
commit f81f5c386d
8 changed files with 167 additions and 26 deletions
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21
coins/monero/src/wallet/mod.rs
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@@ -35,6 +35,7 @@ pub use send::{
pub(crate) use send::InternalPayment;
#[cfg(feature = "multisig")]
pub use send::TransactionMachine;
use crate::ringct::EcdhInfo;
fn key_image_sort(x: &EdwardsPoint, y: &EdwardsPoint) -> std::cmp::Ordering {
x.compress().to_bytes().cmp(&y.compress().to_bytes()).reverse()
@@ -92,8 +93,24 @@ pub(crate) fn amount_encryption(amount: u64, key: Scalar) -> [u8; 8] {
(amount ^ u64::from_le_bytes(hash(&amount_mask)[.. 8].try_into().unwrap())).to_le_bytes()
}
fn amount_decryption(amount: [u8; 8], key: Scalar) -> u64 {
u64::from_le_bytes(amount_encryption(u64::from_le_bytes(amount), key))
fn amount_decryption(amount: &EcdhInfo, key: Scalar) -> u64 {
match amount {
EcdhInfo::Standard { mask, amount } => {
let shared_sec1 = hash(key.as_bytes());
let shared_sec2 = hash(&shared_sec1);
let mask_scalar = mask - Scalar::from_bytes_mod_order(shared_sec1);
let amount_scalar = amount - Scalar::from_bytes_mod_order(shared_sec2);
// get first 64 bits (d2b in rctTypes.cpp)
let amount_significant_bytes =
amount_scalar.to_bytes()[0 .. 8].try_into().expect("Can't fail");
let amount = u64::from_le_bytes(amount_significant_bytes);
amount
}
EcdhInfo::Bulletproof { amount } => {
u64::from_le_bytes(amount_encryption(u64::from_le_bytes(*amount), key))
}
}
}
pub(crate) fn commitment_mask(shared_key: Scalar) -> Scalar {