42 lines
1.6 KiB
Rust
42 lines
1.6 KiB
Rust
use crate::common::skein::skein_256_hash_bytes;
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use crate::decode;
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use crate::wallets::structures::Wallet;
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impl Wallet {
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pub fn has_valid_public_key_bytes(public_key_bytes: &[u8]) -> bool {
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// Public keys must match the FN-DSA public key byte length exactly.
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if public_key_bytes.len() != Self::PUBLIC_KEY_LENGTH {
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return false;
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}
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// FN-DSA encoded public keys carry the security parameter in the first byte.
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if public_key_bytes[0] != Self::FN_DSA_LOGN as u8 {
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return false;
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}
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// The encoded Falcon key body is bit-packed and some raw byte values
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// cannot occur at every position. Apply the chain-specific key rule to
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// a public-key hash byte instead so the target remains reachable.
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let public_key_hash = match decode(skein_256_hash_bytes(public_key_bytes)) {
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Ok(hash) => hash,
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Err(_) => return false,
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};
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public_key_hash
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.first()
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.is_some_and(|byte| *byte == Self::REQUIRED_PUBLIC_KEY_HASH_BYTE)
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}
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pub fn short_address_validation(short_address: &str) -> bool {
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// Accept either canonical short-address bytes or vanity-address bytes.
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let short_address_bytes = match Self::short_address_to_bytes(short_address)
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.or_else(|| Self::vanity_address_to_bytes(short_address))
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{
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Some(bytes) => bytes,
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None => return false,
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};
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// The final byte must match the currently compiled network.
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short_address_bytes[Self::SHORT_ADDRESS_BYTES_LENGTH - 1] == Self::current_network_byte()
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}
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}
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