TimmSkiller at 16:49, 14 December 2024

2024-12-14T15:49:59Z

← Older revision		Revision as of 18:49, 14 December 2024
Line 1:		Line 1:
	=Request=		=Request=
	{~~\| class="wikitable" border="1"~~		{{IPC/Request}}
	\|-		{{IPC/RequestHeader\|0x0024\|1\|0}}
	~~! Index Word~~		{{IPC/RequestEntry\|Principal ID}}
	~~! Description~~		{{IPC/RequestEnd}}
	\|-
	\| 0
	\| ~~Header code [0x00240040]~~
	\|-
	~~\| 1~~
	~~\| principalId~~
	\|}

	~~This function takes the principalId given and applies SHA-1 over it (byte order~~: ~~little endian). The first byte of the SHA-1 digest is then shifted right by 1~~, ~~which forms the checksum byte.~~		=Response=
			{{IPC/Request}}
			{{#vardefine:ipc_offset\|0}}
			{{IPC/RequestHeader\|0x0024\|3\|0}}
			{{IPC/RequestEntry\|Result code}}
			{{IPC/RequestEntryRange\|2\|u64, Friend code}}
			{{IPC/RequestEnd}}

	~~It returns an u64~~. The ~~lower word~~ is ~~the principalId, the upper word~~ is ~~the checksum byte.~~		=Description=
			Converts the given Principal ID to a Friend Code. The following algorithm is used (note: everything is in little endian):

	~~=Response=~~		<code>
	~~{\| class="wikitable" border~~=~~"1"~~		principal_id_buf = principal_id as LE bytes
	\|-
	~~! Index Word~~		friend_code = ((sha1(principal_id_buf)[0] >> 1) << 32) \| principal_id
	~~! Description~~		</code>
	\|-
	\| 0
	~~\| Header code~~
	\|-
	\| 1
	~~\| Result code~~
	\|-
	~~\| 2-3~~
	~~\| (u64)the shareable friend~~ code
	\|}

IReir: Created page with "=Request= {| class="wikitable" border="1" |- ! Index Word ! Description |- | 0 | Header code [0x00240040] |- | 1 | principalId |} This function takes the principalId given..."

2016-07-28T13:00:56Z

Created page with "=Request= {| class="wikitable" border="1" |- ! Index Word ! Description |- | 0 | Header code [0x00240040] |- | 1 | principalId |} This function takes the principalId given..."

New page

=Request=
{| class="wikitable" border="1"
|-
! Index Word
! Description
|-
| 0
| Header code [0x00240040]
|-
| 1
| principalId
|}

This function takes the principalId given and applies SHA-1 over it (byte order: little endian). The first byte of the SHA-1 digest is then shifted right by 1, which forms the checksum byte.

It returns an u64. The lower word is the principalId, the upper word is the checksum byte.

=Response=
{| class="wikitable" border="1"
|-
! Index Word
! Description
|-
| 0
| Header code
|-
| 1
| Result code
|-
| 2-3
| (u64)the shareable friend code
|}

FRDU:PrincipalIdToFriendCode - Revision history

TimmSkiller at 16:49, 14 December 2024

IReir: Created page with "=Request= {| class="wikitable" border="1" |- ! Index Word ! Description |- | 0 | Header code [0x00240040] |- | 1 | principalId |} This function takes the principalId given..."