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Support sending to integrated addresses

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This commit is contained in:
Luke Parker
2022-08-22 06:54:01 -04:00
parent 99b683b843
commit f0b914c721
3 changed files with 66 additions and 47 deletions
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12
coins/monero/src/wallet/mod.rs
View File

@@ -40,20 +40,24 @@ pub(crate) fn uniqueness(inputs: &[Input]) -> [u8; 32] {
hash(&u)
}
// Hs("view_tag" || 8Ra || o) and Hs(8Ra || o) with uniqueness inclusion as an option
// Hs("view_tag" || 8Ra || o), Hs(8Ra || o), and H(8Ra || 0x8d) with uniqueness inclusion in the
// Scalar as an option
#[allow(non_snake_case)]
pub(crate) fn shared_key(
uniqueness: Option<[u8; 32]>,
s: &Scalar,
P: &EdwardsPoint,
o: usize,
) -> (u8, Scalar) {
) -> (u8, Scalar, [u8; 8]) {
// 8Ra
let mut output_derivation = (s * P).mul_by_cofactor().compress().to_bytes().to_vec();
// || o
write_varint(&o.try_into().unwrap(), &mut output_derivation).unwrap();
let view_tag = hash(&[b"view_tag".as_ref(), &output_derivation].concat())[0];
let mut payment_id_xor = [0; 8];
payment_id_xor
.copy_from_slice(&hash(&[output_derivation.as_ref(), [0x8d].as_ref()].concat())[.. 8]);
// uniqueness ||
let shared_key = if let Some(uniqueness) = uniqueness {
@@ -62,13 +66,13 @@ pub(crate) fn shared_key(
output_derivation
};
(view_tag, hash_to_scalar(&shared_key))
(view_tag, hash_to_scalar(&shared_key), payment_id_xor)
}
pub(crate) fn amount_encryption(amount: u64, key: Scalar) -> [u8; 8] {
let mut amount_mask = b"amount".to_vec();
amount_mask.extend(key.to_bytes());
(amount ^ u64::from_le_bytes(hash(&amount_mask)[0 .. 8].try_into().unwrap())).to_le_bytes()
(amount ^ u64::from_le_bytes(hash(&amount_mask)[.. 8].try_into().unwrap())).to_le_bytes()
}
fn amount_decryption(amount: [u8; 8], key: Scalar) -> u64 {