Generate Public Key

Question

I use the command:

> eth.getTransaction("0xac844bd1107761fec3abe2f55bf739f0e7cc6dd1cd169a60176bfb22
9826b5a8")

Where the brackets contain the hash of the successful transaction. This is what I get:

{
  blockNumber: null,
  from: "0xcf03e41ee1116bed4f1acf8a2209b4d37d755988",
  gas: 90000,
  gasPrice: 18000000000,
  hash: "0xac844bd1107761fec3abe2f55bf739f0e7cc6dd1cd169a60176bfb229826b5a8",
  input: "0x165c4a16000000000000000000000000000000000000000000000000000000000000
00050000000000000000000000000000000000000000000000000000000000000006",
  nonce: 28,
  r: "0x4f674ff118c840d032fb3cba8ba0f9cdaed1f73be54f08b487fe1204b5bab809",
  s: "0x736f214a50ad1b417380e2c0aee273459f78fac0bd37deb59b4e7c112736acee",
  to: "0x2608273b77ef3964ceb1fb488d4b95b30258d091",
  transactionIndex: 0,
  v: "0xf09",
  value: 0
}

Can I make use of any of the above values to generate the Public Key of my transaction?

Answer 1

Yes, sure, you may recover public key from your transaction using ABDK Toolkit. For this you need your transaction in raw hexadecimal format. You may again use ABDK Toolkit to convert transaction into this format.

Your particular transaction in raw format looks like this:

0xf8ac1c850430e2340083015f90942608273b77ef3964ceb1fb488d4b95b30258
  d09180b844165c4a160000000000000000000000000000000000000000000000
  0000000000000000050000000000000000000000000000000000000000000000
  000000000000000006820f09a04f674ff118c840d032fb3cba8ba0f9cdaed1f7
  3be54f08b487fe1204b5bab809a0736f214a50ad1b417380e2c0aee273459f78
  fac0bd37deb59b4e7c112736acee

And public key (uncompressed) looks like this:

0x0469eb01db87542d8ba782c8d80bbbe6ac0d474e91a89e9cee71570397acc3b1
  2089bd327411cf25940df653eb86a4de63740edf760ef6448a74e905668c9b57
  d0