Luca Boccassi
4a82fc67c6
The current key sealing format has some less-than-ideal weaknesses: - PBKDF2 with only 65k iterations, where recommendations are ~200k - AES with null IV, relying on salt for uniqueness - lack of AES MAC/AEAD However improbable, it is at least theorically possible that with a lot of resources an offline bruteforce could be attempted. Add a v2 sealing format, keeping unsealing compatibility with the current format: v2:<iterations>:<salt>:<IV>:<ciphertext>:<aes tag> and use 600k iterations for the PBKDF2 sha512
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