Cosmos中的账户地址

cosmos 账户地址格式

cosmos里关于账户地址有三种不同的格式，我们看一看

[ec2-user@ip-172-31-30-153 ~]$ gaiacli keys show wall-e --bech=cons -o json --bech=acc | jq
{
  "name": "wall-e",
  "type": "local",
  "address": "cosmos1hk4ze3hqwg62w89gmee3hj72u7wrap0a2ts87u",
  "pub_key": "cosmospub1addwnpepq272xswjqka4wm6x8nvuwshdquh0q8xrxlafz7lj32snvtg2jswl6x5ywwu"
}

[ec2-user@ip-172-31-30-153 ~]$ gaiacli keys show wall-e --bech=cons -o json --bech=val | jq
{
  "name": "wall-e",
  "type": "local",
  "address": "cosmosvaloper1hk4ze3hqwg62w89gmee3hj72u7wrap0a0lyjj0",
  "pub_key": "cosmosvaloperpub1addwnpepq272xswjqka4wm6x8nvuwshdquh0q8xrxlafz7lj32snvtg2jswl60hprp0"
}

[ec2-user@ip-172-31-30-153 ~]$ gaiacli keys show wall-e --bech=cons -o json --bech=cons | jq
{
  "name": "wall-e",
  "type": "local",
  "address": "cosmosvalcons1hk4ze3hqwg62w89gmee3hj72u7wrap0amvhw7w",
  "pub_key": "cosmosvalconspub1addwnpepq272xswjqka4wm6x8nvuwshdquh0q8xrxlafz7lj32snvtg2jswl6fc4n96"
}

下面的内容是源码中找到的文档，一看就明白

docs/spec/other/bech32.md

HRP	Definition
cosmos	Cosmos Account Address
cosmospub	Cosmos Account Public Key
cosmosvalcons	Cosmos Validator Consensus Address
cosmosvalconspub	Cosmos Validator Consensus Public Key
cosmosvaloper	Cosmos Validator Operator Address
cosmosvaloperpub	Cosmos Validator Operator Public Key

我们来看一下bech32

https://github.com/btcsuite/btcutil/blob/master/bech32/bech32.go

// Encode encodes a byte slice into a bech32 string with the
// human-readable part hrb. Note that the bytes must each encode 5 bits
// (base32).
func Encode(hrp string, data []byte) (string, error) {
    // Calculate the checksum of the data and append it at the end.
    checksum := bech32Checksum(hrp, data)
    combined := append(data, checksum...)

    // The resulting bech32 string is the concatenation of the hrp, the
    // separator 1, data and checksum. Everything after the separator is
    // represented using the specified charset.
    dataChars, err := toChars(combined)
    if err != nil {
        return "", fmt.Errorf("unable to convert data bytes to chars: "+
            "%v", err)
    }
    return hrp + "1" + dataChars, nil
}

代码逻辑还是很简单的，主要是看最后一行代码，在bech32格式中会有一个常量1，这个很有意思，为什么不是0呢，1有些字体中看起来和l很像啊