(4 bytes) Number of Groups : contains the total number of groups in the database,.(16 bytes) Encryption IV : the IV used for content encryption,.(16 bytes) Master Seed : Seed that get concatenated then hashed with the transformed master key (see later how to) to form the final master key,.(4 bytes) KeePass Version : it looks like each version of KeePass save the database with a different value for this field, but I don’t really understand their weird shenanigans about it.KeePass also declares a define of 1 for SHA2 that would be put in this field, but it doesn’t seem to be used , (4 bytes) KeePass Flags : contains the flag indicating the cipher used for the database (2 is for AES, 4 is for ARC4, 8 is for Twofish, but only AES and Twofish seems to be used by KeePass).Here’s the ordered list of the different fields of the header of a. kdbx has a TLV list of fields in its header.kdb header’s fields kdb has fixed number of fields taking a fixed number of bytes in its header, while. for kdbx file of KeePass post-release : 0xB54BFB67.for kdbx file of KeePass 2.x pre-release (alpha & beta) : 0xB54BFB66 ,.kdb files (KeePass 1.x file format) : 0xB54BFB65 , įile Signature 2 (the second field) can have (for now) 3 different value, each value indicating the file format/version : kdbx file formats’ header first have 2 fields of 4 bytes each that are the file signatures (cf KdbxFile.cs of Keepass2 source code).įile Signature 1 (the first field) will always have a value of 0x9AA2D903. File Signature 1 (4 bytes) & File Signature 2 (4 bytes) The header start for both file formats by two 4 bytes fields : the file signatures.
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