search: basic implementation

[adamdecaf]

It seems handy to offer search over ACH files. We could inspect them for specific trace numbers, amounts, and tons of other fields on headers, details, addendas, etc.

Example requests

GET /search?routingNumber=9999999

GET /search?traceNumber=9999999

GET /sources/{sourceID}/search?traceNumber=99999999

Responses

{
  "files": [
    { .. }, // ACH file 
  ]
}

[adamdecaf]

Could we use something like cryptag to encrypt metadata? It can be searchable.

https://github.com/cryptag/cryptag

More notes:

• https://eprint.iacr.org/2019/806.pdf
• https://github.com/IanVanHoudt/Searchable-Symmetric-Encryption
• https://www.slideshare.net/elimisteve/cryptag-building-encrypted-taggable-searchable-zeroknowledge-systems-59707471/8

[adamdecaf]

More Ideas

• https://www.developer.com/security/skyflow-employs-polymorphic-encryption-enabling-secure-pii-data/
• https://jeremykun.com/2023/02/13/googles-fully-homomorphic-encryption-compiler-a-primer/
• https://news.ycombinator.com/item?id=34783447
• https://en.wikipedia.org/wiki/Homomorphic_encryption
• https://github.com/google/fully-homomorphic-encryption
• https://groups.google.com/g/fhe-open-source-users/c/q5DX-OAkYeU?pli=1

Projects

• https://github.com/tuneinsight/lattigo
• https://github.com/actuallyachraf/gomorph
• https://github.com/search?q=language%3Ago%20homomorphic%20encryption&type=repositories
• https://github.com/google/heir

[adamdecaf]

GCS triggers paired with gocloud.dev/docstore updates that we can query?

• https://cloud.google.com/functions/docs/calling/storage
• https://gocloud.dev/howto/docstore/