How to unencrypt my private key?

[Carsen]

Hey guys!

So I am having some trouble importing my private key to blockchain...For some reason my json export exported the private key as "encrypt_privkey" and it is 96 characters long, how would I go about getting this to a working private key for import? Anyone have any ideas?

Here is an example of the 96 character encrypted private key (this is not the one I want to decrypt, so have fun with it): d7e9f17b4986bae8a0507adaf7ce5daceea0fd2b51710f5aead47fc4a67063b71f23939b9264275 d9ff717c311fb253e

I have no idea what alogorithim it is or anything someone PLEASE HELP!

Regards!

[BitCoinDream]

Hey guys!

So I am having some trouble importing my private key to blockchain...For some reason my json export exported the private key as "encrypt_privkey" and it is 96 characters long, how would I go about getting this to a working private key for import? Anyone have any ideas?

Here is an example of the 96 character encrypted private key (this is not the one I want to decrypt, so have fun with it): d7e9f17b4986bae8a0507adaf7ce5daceea0fd2b51710f5aead47fc4a67063b71f23939b9264275 d9ff717c311fb253e

I have no idea what alogorithim it is or anything someone PLEASE HELP!

Regards!

Just trying out...

b69ddd7b950613e0d1d357a5171a190d344c90a6ee9e9c29e7767774cafe493c ?

[Carsen]

How did you get it to that? (So I can do it for my real one)

[cp1]

You just need to decrypt it.  Look at the header info and use that encryption and your passphrase.

[BitCoinDream]

How did you get it to that? (So I can do it for my real one)

I used it => http://www.xorbin.com/tools/sha256-hash-calculator

I am probably wrong. Please verify from those who had in depth knowledge of this.

[Carsen]

How do I go about decrypting it? I have I believe the master key and salt.

Its all in json format like "encrypted_privkey" is the private key that is like the one above and then I have "encrypted_key" which I assume is the master key and then "salt" and "pubkey" I do not have the password to my wallet as it is very old....

Is there a way to use the master key and salt with the encrypted private key to get the actual private key?

[cp1]

If it's encrypted then you need the passphrase

[Carsen]

Okay well I dont have the passphrase....So I am looking at the options of either Brute Forcing it? Password Recovery Service?  Or is there some method of decoding the hashes to get the passphrase?

[cp1]

Yeah you'd have to brute force it.  How's it encrypted? AES?  It'll say at the top.

[Carsen]

It doesn't say just says compressed: "true".....No AES or anything, I would assume it is AES but what else could it be?

[R0yalAir]

1. Run bitcoind

2. Export all private keys

3. Delete wallet.dat

4. Run bitcoind again (This will create a new unencrypted wallet.dat)

5. Import all private keys

[cp1]

It could just be a compressed private key, non-encrypted.  You should be able to use libbitcoin or similar to convert it from hex to base58.

[cp1]

Though 96 hex characters is too many, I think it should only be ~ 56 if it's a hex private key.  Can you post the whole thing, but blank out the hex info?

Here's what an unencrypted backup looks like:
{
   "guid" : "some hex",
   "sharedKey" : "some hex",
   "options" : {"pbkdf2_iterations":10,"fee_policy":0,"html5_notifications":false,"logout_time":600000,"tx_display":0,"always_keep_local_backup":false,"transactions_per_page":30,"additional_seeds":[]},
   "keys" : [
{"addr":"base58addr","priv":"56 or so hex characters","created_time":0,"created_device_name":"javascript_web","created_device_version":"1.0"}
   ]
}

[Carsen]

  It is like this:

  "defaultkey": "btcaddress",
    "keys": [
        {
            "addr": "btcaddress",
            "compressed": true,
            "encrypted_privkey": "96 character key",
            "pubkey": "publickey",
            "reserve": 0
        },

Hope this helps? Yea that is what I thought I am so confused as to why it is 96 characters in length?

[cp1]

I'm sure pywallet can import that, but you need the passphrase or some idea of what it might be (# characters, etc) to brute force it.