Fix FIPS-safe random string generation in dataset generator

[corporate-gadfly]

Chunk large RandomStringUtils calls to stay under the BC FIPS DRBG per-request limit (262144 bits / 32768 bytes), which was causing generate tests to fail under the FIPS profile.

• add random-ascii-string helper in cli/generate.clj and use it in add-blob
• add alphabetic-string helper in random.clj and route random-string/ random-string-alpha through it
• use StringBuilder-based chunk assembly to reduce intermediate allocations
• add local type hints on interop targets to avoid reflection noise

[jpartlow]

@corporate-gadfly thanks for working on this. What's here looks workable, but there are three changes I suggest:

1. pull random-ascii-string into random.clj
2. extract a chunked-random-string function from the guts of random-ascii-string and alphabetic-string and have them call that common function
3. benchmark.clj touch-parameter-value may have a similar issue?

Oops, looks like I missed the merge deadline :)

Depending on what you think about point 3 above, these might still be worth doing. I'm not really up to speed on what the FIPS goals, requirements are here. Do you want me to take a stab at it?

[corporate-gadfly]

@corporate-gadfly thanks for working on this. What's here looks workable, but there are three changes I suggest:

1. pull random-ascii-string into random.clj

2. extract a chunked-random-string function from the guts of random-ascii-string and alphabetic-string and have them call that common function

3. benchmark.clj touch-parameter-value may have a similar issue?

Oops, looks like I missed the merge deadline :)

Depending on what you think about point 3 above, these might still be worth doing. I'm not really up to speed on what the FIPS goals, requirements are here. Do you want me to take a stab at it?

TY for the feedback @jpartlow. Feel free to engage.

My main goal is to have a green daily workflow.

[jpartlow]

TY for the feedback @jpartlow. Feel free to engage.

My main goal is to have a green daily workflow.

Ah, ok, I see where this bubbled up from now. I'll take a stab at it.