This site is dedicated to the orderly disbursement of natural numbers. Our goal is to provide, for every request, a response that includes a unique, non-empty, interval of natural numbers.
Request:
http://www.n-gens.com/unsigned/<X>
X: Default=1; Max=100000
Response:
{
"request_size": "<X>",
"number": "<Y>"
}
Where:
The response represents the interval [<Y>, <Y> + <X> - 1].
Example:
http://www.n-gens.com/unsigned/10
Returns:
{
"request_size": "10",
"number": "20000000000000000000000100300038"
}
Try it out: http://n-gens.com/unsigned/10.
Request:
http://www.n-gens.com/signed/<X>
X: Default=1; Max=100000
Response:
{
"plaintext": "<P>",
"signature": "<S>"
}
Where:
P: The plaintext to be signed:
{
"domain_name": "<D>",
"version": "<V>",
"request_size": "<X>",
"number": "<Y>"
}
S: Digital signature of <P>.
and:
D: Domain name of the service.
V: Version of the service key.
X and Y: Represent the interval [<Y>, <Y> + <X> - 1].
Example:
http://www.n-gens.com/signed/
Returns:
{
"plaintext": "{\"domain_name\": \"n-gens.com\", \"version\": \"3.3\", \"request_size\": \"1\", \"number\": \"20000000000000000000009146734169\"}",
"signature": "Z7maE2lqMqPOZ2ag/BL162fVb+q63DxbljbwoRiAV9bN82x1fTwr4nEJ1tqgO/x0QCDqHJsuso6zHwoPoNNnmk5m9jenCntL3hfAjZP8WKEtHb21hukjzhGKbfRhppnrDayiXGbdmudrZTKbU6JK4f6srUbnUlDR2FIkFpgX/xW5HahX/fiW3BUYuKQ3NvBPZzyT5AbhvvuesGxLXxjIl2Jq5Z3qv576vm1BXKoyf2ORUD5aRZ87Tf8q0ej04dcNIwhDIzmK8z4ePiVjIUrkf4P3srBcUzCrtu+YoIRLpYgNt52SHwxsqyU8djQvBS95tJVo4UKjOOJ8509NpEcl4g=="
}
Try it out: http://n-gens.com/signed/10.
Request:
https://www.n-gens.com/publickey/<V>
V: Default: current version
Response:
{
"version": "<V>",
"pubkey": "<K>",
"signing_algorithm": "<S>",
"hashing_algorithm": "<H>"
}
Where:
V: Version of the service key.
K: Public signing key of version <V>.
S: Signing algorithm used to sign the response.
H: Hashing algorithm used to create the response digest.
Example:
https://www.n-gens.com/publickey
Returns:
{
"version": "3.3",
"pubkey": "-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAt35ukAQmdXkIrcydLD72\n98xdifJ2ufW42YolF7q1c9KcgN5JRxXyPI3+HvcKAwZRY6QuV1MYbiAcsd4XSSTp\nTmEY+EtAlJ6kBBs3cv9c4NZKYKHHWE25c7rWZNG7d0GDlKbK5KeBwzrS0J0AGq5Z\nJEdaMuqQ20YMl1xn3aGBTXOZGmbov0Jhcz8eovuq1vVZ1z0hs2ciRd5VaRs1ISPp\n04U0htvin3TraZzdhHw1yeUUceMEAA4WThiaaNG4w73drmmQ8HmUZj7huk+jxCxF\nPSHaPkbAw+3DVT6lwxx0W/EGwjP1d23GuRhUJpIe7VUnzkfUdJqOx46N38H/0JRY\nKwIDAQAB\n-----END PUBLIC KEY-----",
"signing_algorithm": "RSASSA-PKCS1-v1_5",
"hashing_algorithm": "SHA256"
}
Try it out: https://n-gens.com/publickey.