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AuthenticationMD5Password

AuthenticationMD5Password is a backend protocol message. Identifies the message as an authentication request.

当前阅读 PG 18·选择有来源记录的版本

此版本暂无所选语言的定义,以下显示原始英文内容。

Direction
Backend → frontend
First wire field
Byte1('R')
Field entries
4
Documented flow contexts
Start-up
direction
B
manual path
/docs/18/protocol-message-formats.html
signature
AuthenticationMD5Password (B)

版本定义 PG 18

Byte1('R')

Identifies the message as an authentication request.

Int32(12)

Length of message contents in bytes, including self.

Int32(5)

Specifies that an MD5-encrypted password is required.

Byte4

The salt to use when encrypting the password.

Wire fields in documented order

PositionFormatMeaning
1Byte1('R')Identifies the message as an authentication request.
2Int32(12)Length of message contents in bytes, including self.
3Int32(5)Specifies that an MD5-encrypted password is required.
4Byte4The salt to use when encrypting the password.

比较版本

完整来源事实

fields

map[description:Identifies the message as an authentication request. format:Byte1('R')], map[description:Length of message contents in bytes, including self. format:Int32(12)], map[description:Specifies that an MD5-encrypted password is required. format:Int32(5)], map[description:The salt to use when encrypting the password. format:Byte4]

来源引用

完整定义与证据 JSON

定义来源

center · PostgreSQL 18 · 555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f

正文语言: en · 555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f