Samsung Module Logic Description

Samsung Module Logic Description

The decryption process is a multi-step procedure based on the reverse-engineered .spass file format:

1. Base64 Decoding: The .spass file is a text file containing a single Base64-encoded string. The first step is to decode this string into its raw binary representation.
2. Component Extraction: The resulting binary data is partitioned into three critical pieces:
   • A 20-byte Salt: A random value used to strengthen the key derivation.
   • A 16-byte Initialization Vector (IV): Used to ensure unique encryption for identical blocks of data.
   • The Encrypted Data: The remaining ciphertext.
3. Key Derivation (PBKDF2): Your master password is not used directly as the encryption key. Instead, it's fed into the PBKDF2-HMAC-SHA256 algorithm. This function combines your password with the salt and performs 70,000 rounds of hashing to produce a robust 256-bit (32-byte) AES key. This makes brute-force attacks computationally expensive and unfeasible.
4. AES Decryption: With the derived key and the IV, the tool uses the AES-256-CBC cipher to decrypt the ciphertext, revealing the original data in a semi-structured text format.
5. Data Parsing: The decrypted content is a large, delimited text block. Unsealer meticulously parses this block, identifies the different data tables (logins, identities, etc.), and decodes each field (which are themselves often Base64-encoded) to produce clean, structured data for export.