Validating altcoin addresses

[techypaul]

Hi,

Is there a standard way to validate altcoin addresses? By validate, I mean confirm the address entered is a valid address for the currency chosen, for example, if a user selected QuarkCoin from a drop down box and entered a ZetaCoin address, how can I check for that?


Thanks,
Paul.

[sdp]

Would you like to review the documentation I wrote for software that does that?  Show me an invalid QRK address and I have software will tell you it is not a QRK coin address.  Each address has a magic byte part, and a checksum part, and the part in the middle is derived from the public key but this part derived from the public key looks random, you can use this middle part for several coins.  Use the same private key for several coins (or all of your altcoins).

sdp

[techypaul]

Hi sdp, I would love to if that is possible! Thank you for the information also.

Thanks,
Paul.

[ryanralph]

have been working on a library for people to use with node.js at https://github.com/ryanralph/altcoin-address. Currently it supports:

• Bitcoin/BTC (bitcoin)
• Litecoin/LTC (litecoin)
• Peercoin/PPCoin/PPC (peercoin)
• Dogecoin/DOGE (dogecoin)
• Freicoin/FRC (freicoin)
• Protoshares/PTS (protoshares)
• Megacoin/MEC (megacoin)
• Primecoin/XPM (primecoin

I'd love for people to send me a pull request for any coins you want support for! (would be great if you included tests as well)

Ryan