Cardano Address Derivation on Ledger Nano S Differs from Software Wallets

[ramezanzade1]

Impacted Library name

https://github.com/fivebinaries/go-cardano-serialization

Impacted Library version

v0.1

Describe the bug

Hi,

I’m using a 24-word recovery phrase to generate a Shelley address for Cardano using the derivation path:
m/1852'/1815'/0'/0/0

When I use this phrase in AdaLite (or other software wallets), the derived address matches my expectation. However, when I use the same mnemonic on my Ledger Nano S, the generated address is different.

Expected behavior

My Questions:
1. Does Ledger apply a different BIP32-Ed25519 derivation method compared to software wallets?
2. Is there an additional modification or restriction on key derivation when using Ledger?
3. Does Ledger apply any additional entropy or processing that changes the way the root key is derived?
4. Is it possible to replicate Ledger’s exact address generation in a custom Go implementation using cardano-go?

Would really appreciate some insights into this difference! Thanks.

Additional context

No response