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31 lines
1.4 KiB
Markdown
31 lines
1.4 KiB
Markdown
---
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summary: 'an optional flag that is added to identify transactions to merchants, consisting of 64 hexadecimal characters'
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terms: ["payment-ID", "payment-IDs"]
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---
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{% include disclaimer.html translated="yes" translationOutdated="yes" %}
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*Note:* Long Payment IDs have been removed since release 0.15; it's not possible to use them anymore. More info in the [blog post]({{ site.baseurl_root }}/2019/06/04/Long-Payment-ID-Deprecation.html) that announced their deprecation.
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### 基础知识
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支付ID是一个**任意**和**可选**交易附件,包含32字节(64个十六进制字符)或8字节(在集成地址的情况下)。
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支付ID通常用于识别商家和交易所的交易:鉴于门罗币内置的固有隐私特性,其中一个公共地址通常用于转入的交易,支付ID对于将转入的款项与用户帐户绑定在一起尤其有用。
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### 紧凑的支付ID和集成地址
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自0.9 Hydrogen Helix
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版本以来,支付ID可以加密并嵌入到一个支付地址中。这种类型的支付ID应该是64位的,并且使用只有发送方和接收方知道的随机一次性密钥进行加密。
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### 创建一个支付ID
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建议使用官方钱包的 `integrated_address` 命令自动生成包含紧凑支付ID的集成地址。如果你想使用命令行,你可以用一下方法生成支付ID:
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为综合地址创建一个紧凑的支付ID:
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```# openssl rand -hex 8```
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创建一个老式的支付ID:
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```# openssl rand -hex 32```
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