HashEngineering - Android Wallet Creation Service

[SpiryGolden]

Top notch service from HashEngineering !

[HashEngineering]

Further information on Quark:  Three of the 6 hash functions have been found in java.  Can anyone find bmw, groestl or jh?

This would also apply to SecureCoin.

[HashEngineering]

We are working on using the checkpoint feature from bitcoinj.  

This feature will eliminate the need to download the entire blockchain.  The blockchain stored by the app need only be 1 week older than the oldest set of keys.

The checkpointing feature works better with linear difficulty adjustment code (from Bitcoin and Litecoin).  The Kimoto Gravity well requires extra coding.

[ahmed_bodi]

the dgc android wallet has been tested and is working well with old wallets. it'll get added to gplay in the following few nights

[HashEngineering]

the dgc android wallet has been tested and is working well with old wallets. it'll get added to gplay in the following few nights

This is great news.  I will help promote the digitalcoin wallet.  I have an account with digiclick.co with some DGC credits.

[HashEngineering]

Infinitecoin is nearly complete.

[inmean]

You guy are the best, it would be cool to have android wallet for Prosper Coin
https://bitbucket.org/prospercoin/prospercoin

[HashEngineering]

A forum has been set up for android developers at:  http://www.hashengineeringsolutions.com/forum

Another developer has joined the Hash Engineering Team, which may help with getting more android wallets done.

We have just cracked the Quark hashing function in Java, making us the best Android Wallet Development Service in the world.

[Apocalipsis]

Hash Engineering Solutions is currently working on the following android wallets.

Our code base is currently bitcoin-wallet 3.30.  We noticed that the Litecoin team has also forked this wallet and has added some of their own improvements.

Current Project Status
digitalcoin Android Wallet – The blockchain is synced and the forks for V0.2, V1.0 and V1.1 have been tested successfully.  The other developer is testing some modifications to maintain backward compatibility with the previous litecoin version.
https://github.com/HashEngineering/digitalcoinj (forked from https://code.google.com/p/bitcoinj - v0.12-SNAPSHOT)
https://github.com/HashEngineering/digitalcoin-wallet (forked from https://github.com/schildbach/bitcoin-wallet - v3.31)
Recent News:  Not compatible with previous version of the digitalcoin-wallet because the previous version was forked from a buggy feathercoin fork that was saving its Private Key backups using the Bitcoin private key format.  The other developer is working on a "fix".  This app has been upgraded to 3.31 and is being tested.

Franko - Based on version 0.8.5.3 (with lowered transaction fees / Kimoto Gravity Well)
https://github.com/HashEngineering/frankoj
https://github.com/HashEngineering/franko-wallet
https://github.com/HashEngineering/franko-wallet/releases/download/v1.0.0.7/franko-wallet-1.0.0.7.apk
https://play.google.com/store/apps/details?id=hashengineering.franko.wallet
Recent News:  Syncing is much slower with the Kimoto Gravity Well.

Infinitecoin (1.8.5)
Beta testing has begun.
https://github.com/HashEngineering/infinitecoinj
https://github.com/HashEngineering/infinitecoin-wallet
https://github.com/HashEngineering/infinitecoin-wallet/releases/download/v0.1.6-beta/infinitecoin-wallet-0.1.6-beta.apk
Not on Google Play.

Megacoin
The Kimoto Gravity Well code is currently being tested.  It syncs slowly.
https://github.com/HashEngineering/megacoinj
https://github.com/HashEngineering/megacoin-wallet
https://github.com/HashEngineering/megacoin-wallet/releases/tag/v0.1.2-beta
https://play.google.com/store/apps/details?id=de.schildbach.wallet.megacoin

Quark
The Genesis block was verified.  The app is how synced to block 50,000.

Future Projects
Inquiries have been made about these coins:
Gamecoin
MemoryCoin 2.0 - requires a new hash function
Noirbits
Koindashian
Florincoin - requires transaction comments (a measure of success has been achieved with transaction comments).
Prospercoin
Velocitycoin

A forum has been set up for android developers at:  http://www.hashengineeringsolutions.com/forum

Another developer has joined the Hash Engineering Team!

Which coins need android wallets?  Only SHA256 and scrypt Proof Of Work coins can be ported at this time.  Proof of Stake coins may require much more coding.

Have you got SHA-256 android wallet.?
Because all list of your projects is SCRYPT coins.

[digitalindustry]

A forum has been set up for android developers at:  http://www.hashengineeringsolutions.com/forum

Another developer has joined the Hash Engineering Team, which may help with getting more android wallets done.

We have just cracked the Quark hashing function in Java, making us the best Android Wallet Development Service in the world.

+ 1

I can second that .

awesome work by HashEngineering , hope you get lots of work in the future also !

[HashEngineering]

Have you got SHA-256 android wallet.?
Because all list of your projects is SCRYPT coins.

SHA-256 coins are possible also, the only difference is one line of code.  Even scrypt coins use the double SHA-256 for the hash values of blocks, transactions and merkle-roots.

[Zzzack]

Have you got SHA-256 android wallet.?
Because all list of your projects is SCRYPT coins.

SHA-256 coins are possible also, the only difference is one line of code.  Even scrypt coins use the double SHA-256 for the hash values of blocks, transactions and merkle-roots.

Are there any other sha-256 wallets I can look at? Any alt coins have one?

[Apocalipsis]

Have you got SHA-256 android wallet.?
Because all list of your projects is SCRYPT coins.

SHA-256 coins are possible also, the only difference is one line of code.  Even scrypt coins use the double SHA-256 for the hash values of blocks, transactions and merkle-roots.

Are there any other sha-256 wallets I can look at? Any alt coins have one?

No.But you can make it by changing one line in the code.I will post it later

[Apocalipsis]

Have you got SHA-256 android wallet.?
Because all list of your projects is SCRYPT coins.

SHA-256 coins are possible also, the only difference is one line of code.  Even scrypt coins use the double SHA-256 for the hash values of blocks, transactions and merkle-roots.

If it is possible,create please Litecoin android wallet.
Thank you.

[HashEngineering]

If it is possible,create please Litecoin android wallet.
Thank you.

The Litecoin Wallet already exists, based off the latest Bitcoin Wallet code:
https://play.google.com/store/apps/details?id=de.schildbach.wallet_ltc

[HashEngineering]

Many are asking for Android Apps for new or older coins that use the Kimoto Gravity Well.  This difficulty adjustment may work wonders for halting the strip mining of multipools, but it is not good for Android device battery long longevity or for sync speed with the blockchain.

There are three parts of the KGW code.  The first part is the rewind (retrieving the previous block header), the second is difficulty calculation math with 256 bit integers and the last is some floating point math for other calculations.  These three parts are part of a loop that repeats a certain number of times for each block.  About half of the time involved in calculating the difficulty is retrieving the previous block information.  Sometimes Megacoin needs to do this between 144 and 4000 times for each block.  About 40% of the time is doing a subtraction, a division and an addition using 256 bit integers (Java BigInteger is slow).  Lastly, the remaining 10% of the time is doing some floating point math. 

Currently, we are looking into getting the 256bit integer math handled Natively (machine code) instead of interpreted Java.  Next will the the stepping back through the block chain.

[1369]

How do we begin the process of having you guys make a TrollCoin Android Wallet?
Thanks!

[hackformore]

How difficult to add support  Scrypt-jane and Scrypt-Adaptive-Nfactor?

[HashEngineering]

How do we begin the process of having you guys make a TrollCoin Android Wallet?
Thanks!

You can post a question in our forum and hopefully a developer will take on the job.  Currently I am too busy to take on more work.

http://www.hashengineeringsolutions.com/forum/index.php?board=2.0

[HashEngineering]

How difficult to add support  Scrypt-jane and Scrypt-Adaptive-Nfactor?

We don't have the answer for this right now as we haven't worked with these algorithms.  Native support will be key.  These hash functions really wear down the batteries of android devices.