ACVP (demo) server does not support modulo size 1536 for RSA sigVer

[jvdsn]

On https://github.com/usnistgov/ACVP/blob/master/src/rsa/sections/05-sigver-capabilities.adoc, it says:

any one of the supported modulo sizes {1024, 1536, 2048, 3072, 4096}

However, when requesting a test vector with the modulo size 1536, the following error is returned:

[
  {
    "acvVersion": "1.0"
  },
  {
    "error": "Validation error(s) on JSON payload.",
    "context": [
      "RSA-sigVer-FIPS186-4: Invalid Modulo supplied: 1536;Invalid Modulo supplied: 1536;Invalid Modulo supplied: 1536"
    ]
  }
]

Is this an error in the specification or in the server implementation?

[livebe01]

This is an error in the specification. I've updated the specification to show that the supported modulo sizes are 1024, 2048, 3072, and 4096.

[jvdsn]

Hi @livebe01, on May 9, 1536 was again added to the spec (1cd9b9c), so it is my understanding that it should be supported now. However, I still get the following error:

[
  {
    "acvVersion": "1.0"
  },
  {
    "error": "Validation error(s) on JSON payload.",
    "context": [
      "RSA-sigVer-FIPS186-4: Invalid Modulo supplied: 1536;Invalid Modulo supplied: 1536"
    ]
  }
]