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61 lines
3.4 KiB
Markdown
61 lines
3.4 KiB
Markdown
---
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title: Standard Address
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---
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# Address
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Monero public address is what you publish to get paid.
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An address can be generated offline and for free. It boils down to generating a large random number representing your private spending key.
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Publishing your Monero address does __not__ endanger your privacy. That's because in Monero transactions go to stealth addresses which are decoupled from your public address.
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There are a few **types of public addresses** in Monero:
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* Standard address - basic type of an address, also referred to as raw address
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* Subaddress - what you should be using by default
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* Integrated address - relevant for exchanges, merchants, and other businesses accepting Monero in a fully automated way
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## Standard address
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Historically, raw address was the only available option. For that reason it is the most widely adopted and supported address type.
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Its strength is simplicity. However, these days users should prefer receiving to subaddresses instead.
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Technically, raw address is also a basis for creating subaddresses and integrated addresses.
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Raw address is **still useful for**:
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* accepting block reward in a solo-mining scenario as other addresses are not supported
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* accepting from senders who batch payouts (like mining pools); in this scenario the sender is paying multiple parties using a single transaction; such transaction has multiple outputs; subaddresses do not work in this scenario
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* accepting from senders who use legacy wallets (can't send to subaddress)
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Monero raw address is composed of two public keys:
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* public spend key
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* public view key
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It also contains a checksum and a "network byte" which actually identifies both the network and the address type.
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## Data structure
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Index | Size in bytes | Description
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------------|------------------|-------------------------------------------------------------
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0 | 1 | identifies the network and address type; [18](https://github.com/monero-project/monero/blob/793bc973746a10883adb2f89827e223f562b9651/src/cryptonote_config.h#L149) - main chain; [53](https://github.com/monero-project/monero/blob/793bc973746a10883adb2f89827e223f562b9651/src/cryptonote_config.h#L161) - test chain
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1 | 32 | public spend key
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33 | 32 | public view key
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65 | 4 | checksum ([Keccak-f[1600] hash](https://github.com/monero-project/monero/blob/8f1f43163a221153403a46902d026e3b72f1b3e3/src/common/base58.cpp#L261) of the previous 65 bytes, trimmed to first [4](https://github.com/monero-project/monero/blob/8f1f43163a221153403a46902d026e3b72f1b3e3/src/common/base58.cpp#L53) bytes)
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It totals to 69 bytes. The bytes are then encoded ([src](https://github.com/monero-project/monero/blob/8f1f43163a221153403a46902d026e3b72f1b3e3/src/common/base58.cpp#L240)) in [Monero specific Base58](/cryptography/base58) format, resulting in a 95 chars long string. Example standard address:
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`4AdUndXHHZ6cfufTMvppY6JwXNouMBzSkbLYfpAV5Usx3skxNgYeYTRj5UzqtReoS44qo9mtmXCqY45DJ852K5Jv2684Rge`
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See the [source code](https://github.com/monero-project/monero/blob/f7b9f44c1b0d53170fd7f53d37fc67648f3247a2/src/cryptonote_basic/cryptonote_basic_impl.cpp#L159).
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## Generating
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Standard address is derived from the root private key. TODO.
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## Reference
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* [StackExchenge answer](https://monero.stackexchange.com/questions/980/what-are-the-public-viewkeys-and-spendkeys)
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* [https://xmr.llcoins.net/addresstests.html](https://xmr.llcoins.net/addresstests.html)
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