Topic: Pretty Addy Giveaway (Read 12499 times)

I'm closing this thread.
I've opened a new one: Pretty Addy Giveaway - part 2, feel free to request your addy there.

Having an address with 1A can hardly be called pretty. 

Some people want addresses that say something, like 1BitmixerEiyyp3eTLaCpgBbhYERs48qza for example, instead of random looking addresses like 1JGYXhfhPrkiHcpYkiuCoKpdycPhGCuswa.
Unfortunately, you can't simply type in any 160 bit string and call it your address, because to be able to spend the coins, you need the discrete logarithm of the hash preimage of the address (the address is the hash of the public key, which is the discrete exponential of the private key), and neither of the operation can be inverted (if they could be inverted, it would be trivial to steal coins).
Therefore, the only method to produce a pretty address is by choosing arbitrary private keys, and calculating their addresses, until one is found that has the correct word.
For example, say I want an address starting with "1A" (A for ArcCsch), and start generating private keys and finding their addresses, the results would probably look somewhat like this (Private keys on the right, their addresses on the left):

1,"176HX3TpU6nmVRE5YwapgJKVsQ52CU734N","L29SpQvnXVzcvpwvSaXjSWMoMbSUr53FEpfbaXBDEoUtSFU23asA"
2,"1HtcBMUk4sR3dEbdcNDehSx5KWCmA7P1sP","KzpQ5xAnAomAibgT1b7y1d6E6MrgQvjCxnVSqf3amZWyiWjPASEo"
3,"1MQ77bkGTNbpA8jAGb9zqLcGVw3GjbgJH4","Kwe8aGELMp9U3PN4wgNMh7vze5FDt8YBjxoBREQbsiZEpHqBut7f"
4,"1FzSRKMXCmnbe9pi3GRhxh8yTi49iasYS6","KyymhJTLFRMmnZaERNYU9XsQ2An8kTJNPJvRMe9Vm3SPc42hCw3N"
5,"1Mg3b4am6x7wKvENFNTXgonr8MPn4eLaZo","L3d45874hZDUo1guPcEoCz56iKMZyKQkF3NXE7Kdi8weHQAqt2vD"
6,"1C2EtarJYFRWgXEXxuNWefQRX9JZL944cv","L4zC1LJgSmCFisJ4uakjncTPrhj7XdkM8UgaEcCC6gxuB7BjrD64"
7,"1P2cD6vxK68T5Wn6qLZZ5kK31eSF9fuU3d","L48ZBBxraruWEUsFqVYjFMR7UvdequJ9VsKvP5yc6Q3jqEmNZfxx"
8,"1K3JNRX6ENBxEy4XJmv4rMgoc3k8rE7GwL","L2RtVkX1TZFWuEbUetcoUaim4PQbuSFAeRMxX1NpfuZ8tgerHAEJ"
9,"1EuQmM4Cigych2bHBk493fHahkpbKJfyq","KxTwUAnpBPoq1exCM3GVN6V8bKbpkevTddC76peBUTH6rVh7vdtK"
10,"1HRANKHXPpR4gnmAeTr7tfzh477syR3biv","KznrNnfc6wfYwGkYbLfCMP2ZEV5wzoWTE4CgMRkuboCL2mtuXUKk"
11,"1DukfCTpmGduVhJumeusj2Zxd342jGhA4","L1iNPa1MWSX1FoKfXbv6KcMesVJbMVU9BTkjJqDc7UsZHigBGBsN"
12,"1FpvHnrthF7zDfZoh5YaczrKXyGXzmtpcC","KwDpcAfp16Kf7DdNzYzwh8habpRXc7AX6NQQPQoMmqfzdAEcoZTX"
13,"1Lxm7tXvrGb2nd8oSqAJWvXnCXKhFe2GVr","KzzifnmUMoNFdw9UasKV1bh83m5yAEYuvpwDexxaWb2xWBJC5pz3"
14,"14tpXY96XHze989SPuPDQhz9oU4KDyWUR5","KyDgPQU2eAtn3YiyfGhRnSC4Q7FH2C89exajf1QiRywYXdHJ4CHG"
15,"17bxWpdoYKkrmkF4yhjy96ndJqzRcxwLJr","L1tKsxYPNnL4nwmmufzFFxWXhCKxGchDg8fk126NkTtg9q5gLgjp"
16,"16Gpi5zFKNDiV53n5G7Pd9rkSmKkLjcJJw","L4gXfZrFG4BPb2T9V8nybNHidMbJqxFrvNB1GEDwpQnr6hVvwoV2"
17,"1Jkao7hjHWLSWfLCzeynA8CS3KZLoZH1qC","L2PV2HgziqRJThdrsoztvUnf1NxtuXkB8LFYjCfnynsxyUAPxgR9"
18,"13Amda7V3yAV3MU6ke4zwhoTVTaNMpnm3h","KyPPuuNxKDuxcoXxiaGq1RN3akCyTWjraLdvPwkVbdtDVvTFfKov"
19,"1Kvbnr9ZkuEJWiGnPvUwVY94cAEvHyNnp4","KxmfMBvWH7P32bFGTbqTUYFdNbGbnA5DzzEEaWnzSrpa9NfwtkPN"
20,"1K3KVcThaN6aRsBGxjg9VvM4azHPdqC2uT","L2d2Z2B6AFGEDqaYc9qLiCLscEuhFqYQqp4Zk3WVv3usoPdoRpV9"
21,"17uJFvLNNnx8Uh7BhDkKBtGcniQnBfgT8d","KzdP3x1QiB4UrnSoT7c3mp9d2PQuZqwEDCcXp2QSgFrVCWzcSVDd"
22,"1GhDezoCpV974tHMrDGSnEZZBL23azRBoP","KyCS2Ezs6FQkinrWGWyKNKvGDEamriV7WCUtfvhEdL8L5iqmi88v"
23,"1PmYBits4tM3aBnMgKYva1LaznxEW966jP","L1vMEc3kuKDaDaBbM8KMBTGYciATK1FvSd3DquHeGAXMCigkNSge"
24,"19uYNzpq8exwKuXVrNCPDv5edCZFtP9JbU","L1NNobwtpbsTty3wh4mhY3jwN6hFhe7QgGEt5yBj4yTJinxUEDqy"
25,"1HyM8jFnom5WaMD86gtnTNGRbSxpeyR5LC","L1qR89LAevCQPXjdiJ8V8zcbkQnqx8eNeT4gT9hRjgRaFqfF1gjW"
26,"1HGxM5bBggLNBKiDoGVkmQpU1GsLUUJn9Z","L4csYwhFydcHNhbBsM8eModmBCvC3G7rhZVDoVaN9AexjMe2gYik"
27,"1MQ6SSpes8JDqcVGiN2d1d3RPotHCtCs3i","KyZjDTAYDCXa14NAXxV4GVqJ5ppBXTviqqpUHFaFS5noc1Jt9f1q"
28,"1NqqPT3KY53y9PkC5VReHvfPLBBGw2xPu7","L1ySBTcEEnQxmPRiw2qS74rTUF3FYQtJejju4Uc5nwngZUzpCyoP"
29,"1542DyiaZ9835DRgnEizNLtRgYPXZjQ5oH","L2VHsqccStbMWGsjBKSuHXW7HsgRYAVhVZhJh5UNacvmiaqxtBzz"
30,"1GBSnRHds1CvFQWgr45DG5cVvC6SjjU5EB","L167yAuiRVXEcjTXXq2wpZbGhr61hZvx6oBLAbfTGrWb3iLr9x5G"
31,"1Bf4n1dALB6RCampCPir4gxU4UJubdXh1W","KzMXD1EU3TTDH2AViXj9VeoLXVYto8npbHjkJ6MwMG2RzBt6tRMa"
32,"1FkiKGj7pUyjeG5h8LNY9pfn1DN7W6KW7Y","KytsiftWBYxjMGEDnZC1yEHMp3gSPUVDeiPmeNcgh4h5ewoHbnx9"
33,"1GthMoYqHB3rVi474U4W72Mf7LB76Byvb7","Kxy1KXLjdf7QDYrbgJsiUnUWA5v82syKjvqYKPGjazJyZEFcJGit"
34,"12mvzgNDsewFrpMRPNWkB2S59Hy55SkM2Q","L3ZdDWDLybwMhC33Mys1Px3V61qxmHrcfDmkA6Qz7w2rHPtbJabE"
35,"13vdReZ4TmNg6NBQQxzCdCHmfKZ67eTQqp","L1MKgWEXtS15qqyi3u8WqepT2ZDDHR1SNcQw9T7dgU8S5dJUMgSW"
36,"12bgbnRqbvd1SfJyvYmVoJGNumb5Lne6CJ","L3MaGMTjkghXGBUpi1RM8kyZynK3RoZdNiEHzY5MtVrjnuXq87RR"
37,"1ACdE9iqhGgGy7TvjKue73rTrPPcL1afap","KyxE8mpsASJfooD2YZZJPs1NuYrU3ULfoxpYzJHYTj8t1aBmJWri"

As you can see, on my 37th attempt, I generated an address that starts with "1A", now I have a pretty address (I can't use this particular one, of course, because I just published its private key).
In the same way, addresses like 1Bitmixer... can be generated by this procedure, requiring far more attempts (the expected number of attempts grows exponentially with the length of the desired pattern).
For this reason, longer patterns require considerable computational effort.
This is what LoyceV is giving away, customized addresses.
The whole key-part thing is a procedure to allow LoyceV to generate addresses, and others to use them, without exposing the full private key.
This exploits the commutativity properties of discrete exponentials, and allows the key-parts to be published on this thread without risk, because the other part of the key is retained by the user requesting the address.

This procedure is described under "instructions" in the first post, if you are interested, I can explain the technical details of this procedure.

i dont understand this giveway,, 

Are you confused about the instructions, the security, the method or... what?
We can't really help you if you don't provide more details.

not understand, confuse 

Here you go:
Address: 1AmiLyekThB8Mu9AQYSzDcwVRdMga6tWEg (Balance: )
PrivkeyPart: 5JAJwFvrUP3hN75za44gCdxcpHxhn9NZ4PhhidNMnpzXLufYEbA

Yes, there are some generators for that, but I don't do it.

This is a Bitcoin address, meaning you can only use it for Bitcoins, not for altcoins.

Correction:

Prefix : 1AmiLy   ; if possible with capital A
Public Key : 041150427296CB4BEDB4A5E1BE3D59E1E119A863A29E07BD34002152A585C9784EA669045DF5845 5286385304C5702634E6333D950CC6718A1095E9E66024D0C92

Thanks for the clear up by the way.

-@LoyceV Could you clarify this?
"2. can the vanity address be used for altcoins instead of bitcoin, for example monera/dash./zcash ...
". You answered : That's possible, but not in this giveaway.

Do you mean there are other generators who can generate vanity address for altcoins or you can do it also with some adjustment?


-I just wonder whether altcoins payments can be transferred to this vanity bitcoin address.
If not probably i need to register with an Exchange ?

Thanks in advance again.

I can make this for you. Please follow the instructions and give me a public key (You gave me a Bitcoin address).

So are millions of other addresses that are used over and over again, or used to sign a message.

No need to spread FUD on this, unless you can tell me where I can buy a quantum computer that can easily crack this...

There you go You could have said this without the FUD.

To end the FUD now: If you think you can crack an address when the public key is known, why don't you give it a shot at 1JCe8z4jJVNXSjohjM4i9Hh813dLCNx2Sy? This is the richest Bitcoin address, and it has been used to send coins out (Balance: ).

Not quite, for a normal bitcoin address, while the coins are stored on it only the hash of the public key is public, and the public key itself is only revealed when the coins are spent.
With a vanity address, the public key is made public as soon as the address is generated.
The hash is practically intractable, but ECDSA can be easily cracked using a quantum computer, and may possibly be susceptible to mathematical analysis.
Vanity addresses give more time for such attacks than ordinary addresses.
Since practical quantum computers don't exist yet (or perhaps "the powers that be" have one in the basement, but don't use it for fear of revealing its existence, an interesting conspiracy theory), and no mathematical attacks are known, vanity addresses are probably safe.
Only if they use the same address algorithm as bitcoin, be very careful, as if the altcoin uses the same format but a different algorithm, the coins would be burned.

Could i have this one ?

Prefix : 1AmiLy   ; if possible with capital A
Address : 19SxjYppA6sxxG2Xpuw8e5bWmn9SZa3qkw


I also have some questions :

1. Is this vanity address as "safe" as a normal bitcoin address ?
2. can the vanity address be used for altcoins instead of bitcoin, for example monera/dash./zcash ...

Thanks in advance!

Thank you very much sir LoyceV! Keep up the good work by helping the community. Kudos!

This I can do for free, in seconds.
Here you go:
Address: 1MintCL1xZmcBeDw2tuCxp4o2KafYcyjvi (Balance: )
PrivkeyPart: 5HtZ4sr3d346SxZtisHGJd8PX1c5ivTdGELMqhaGE1NTUYhgbcu

Edit:
Public key: 04AAE1C6D854E3F1D1AB271D76D2BF1E09912C8B278766F9F6AB41FF6F38576D950C71F820700DA 77B9F659391377F263D92A4F42C38B32FF9E6F33369B0EBD6DC

sorry for inconvenience sir

I get an invalid base pubkey error when I try your public key. Are you sure you copied it correctly?



Edit: Going to sleep, will generate an address for you in the morning if Loyce hasn't done it yet and you provide a valid key.

True, the complications may well make it less efficient for this give-away, but I think it would be beneficial to have a program that does this.
Also, I cannot imagine parting with half a bitcoin just to get a fancy address.

1MintC. sorry for wrong info of address, can you do this sir?
I already edit my post

It would cost you an infinite sum of bitcoins, as the address 1MintCtNesdc8EiJ2D1sKs75EUYPABD3LX has an invalid checksum, meaning it can never be a valid bitcoin address. There is no private key that belongs to that address.

Even if it is an valid address, it's almost impossible to vanitygen an entire address, as the chance is extremely extremely extremely extremely extremely extremely low to find an exact match. Why do you even want to random string of characters (I assume)?

You can get 1Mint for free, if that's all you want. I can do it right now for you or you can wait for Loyce to come online.

hello sir LoyceV. how much is the cost for this cutom addy?

Prefix: 1MintC
public key: 0484D0A03001396477653D79CA8FA2C14ED72E4F2E2D5A04D1B0095169B3C326259F346D9C58ECE D201E3BDF58C2848D1BC564AE52A37416EC76BC8B106740FE34


Thanks

I will take the 1LoveU, thank you