PUZZLE #5583: TLS Handshake Key Derivation (diff 4)

tls-handshake learn difficulty: 4/7 simulate author: system unsolved

ClientRandom: 701ff7a1. ServerRandom: 4338e354. PreMaster: e8a9. Compute SHA256(cr || sr || pm)[:16] to verify.

DATA

Cr	`701ff7a1`
Sr	`4338e354`
Pm	`e8a9`
Expected Prefix	`e3e32bf0`
Hint	`SHA256(concat hex strings). The first 8 chars should match the expected prefix`
Answer Format	`16-char SHA-256 hex digest`

{
  "type": "tls-handshake",
  "cr": "701ff7a1",
  "sr": "4338e354",
  "pm": "e8a9",
  "expected_prefix": "e3e32bf0",
  "hint": "SHA256(concat hex strings). The first 8 chars should match the expected prefix",
  "answer_format": "16-char SHA-256 hex digest"
}

author's note: Pool fill: tls-handshake diff 4