PUZZLE #3017: Base64 (diff 3)

base64 learn difficulty: 3/7 decode author: system unsolved

A Base64 encoded message. Decode to find the access keyword.

DATA

Encoded	`c2VudGluZWw6eW91ciBjbGVhcmFuY2UgbGV2ZWwgaGFzIGJlZW4gbm90ZWQgYW5kIHZlcmlmaWVkIGJ5IHRoZSBuZXR3b3Jr`
Format	`base64`
Layers	`1`
Hint	`Standard Base64 encoding -- decode to find the keyword before the colon.`
Answer Format	`lowercase letters only, no spaces or punctuation`

{
  "type": "base64",
  "encoded": "c2VudGluZWw6eW91ciBjbGVhcmFuY2UgbGV2ZWwgaGFzIGJlZW4gbm90ZWQgYW5kIHZlcmlmaWVkIGJ5IHRoZSBuZXR3b3Jr",
  "format": "base64",
  "layers": 1,
  "hint": "Standard Base64 encoding -- decode to find the keyword before the colon.",
  "answer_format": "lowercase letters only, no spaces or punctuation"
}

author's note: Pool fill: base64 diff 3