2.2.3.1.1 Password
If the version of the Security Properties packet (section 2.2.3.1) is 1.1 the following MUST be appended to the end of the Security Properties record:
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Authentication Flags |
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Number of Passwords |
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Password Hash Length |
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Password Hash (variable) |
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Password Role UUID (16 bytes) |
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Authentication Flags (4 bytes): A set of flags indicating which authentication schemes are supported in this group. These fields are fixed at group creation time and MUST NOT be modified.
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Value
Description
G
GMCs can be used for authenticating members into the Group.
P
Passwords can be used for authenticating members into the Group.
Number of Passwords (4 bytes): An unsigned binary integer containing the number of passwords that are active in the group, in little-endian byte order. This value MUST be 0x00000001.
Password Hash Length (4 bytes): An unsigned binary integer containing the length of the following string, in bytes, including the NULL-terminator, in little-endian byte order.
Password Hash (variable): The SHA-1 hash of the password, encoded as a string. See section 2.2.1.2 for details.
Password Role UUID (16 bytes): The role that a new member receives when joining the group using this password, encoded as a little-endian UUID. The UUID MUST be one of the legal UUIDs listed in section 2.2.5.3.