FRDU:PrincipalIdToFriendCode
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Request
| 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
| Index Word | Description |
|---|---|
| 0 | Header code |
| 1 | Result code |
| 2-3 | (u64)the shareable friend code |