Breaking changes in v0.9.0 changing from UByteArray to String

[ShreckYe]

Hi, could you explain the breaking changes in v0.9.0 that those functions involved return String instead of UByteArray? From my perspective, hashes should be in binary forms and the old signatures were more natural.

[ionspin]

Hi @ShreckYe ,

You are right, it is more natural to work with UByteArray, but the underlying libsodium function crypto_pwhash_str for PasswordHash.str() returns a ASCII encoded string and I was previously incorrectly returning a UByteArray representation of that string not the real unencoded UByteArray of a hash, which was misleading.

[ShreckYe]

Thanks for replying. So do you know what kind of encoding it is? Is it Base64 or hex encoding or something else? How do I convert it to and from a ByteArray/UByteArray if I want the compact form in bytes?

[ShreckYe]

OK I see after I printed it. It's a string that also stores the format and parameters, and the hashed part is probably in Base64.

[ionspin]

See here for the specification, https://doc.libsodium.org/password_hashing/default_phf#password-storage where it says it's ASCII encoding (https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.text/to-byte-array.html).