Tag: signature

37 Create and sign OFFLINE raw transactions? 2016-04-26T18:44:34.883

28 Where is the private key for a contract stored? 2016-01-21T06:45:03.187

25 How can I sign a piece of data with the private key of an Ethereum address? 2016-01-26T22:30:36.280

25 Get public key of any ethereum account 2017-03-31T11:34:06.207

21 Is Ethereum secure against an attack by quantum computers? 2016-01-22T06:33:53.523

20 Ethereum ecrecover signature verification and encryption 2016-03-22T20:27:52.353

17 What does v, r, s in eth_getTransactionByHash mean? 2017-05-03T07:02:46.660

16 workflow on signing a string with private key, followed by signature verification with public key 2016-03-03T14:16:40.650

13 Is it safe to reuse Ether addresses? 2016-02-07T14:33:09.297

13 Getting the wrong address back from ecrecover 2017-03-01T11:54:21.757

11 Ethereum signature verification not matching 2017-04-24T07:39:30.903

10 How can I verify a signature with the web3 javascript API? 2016-04-05T08:23:33.593

10 How do you sign an verify a message in javascript proving you own an Ethereum address? 2017-03-28T22:19:37.707

9 How does one properly use ecrecover to verify Ethereum signatures? 2016-03-19T06:35:36.760

7 Can I compress a raw, signed transaction into 140 characters 2016-03-17T19:27:49.597

7 Is it possible to sign transactions offline in Mist? 2016-03-30T22:28:37.117

7 Do I have to unlock my account in geth to call a web3.eth.sign() in JavaScript? 2016-06-09T15:09:05.903

7 Demystify Transaction signing process 2016-07-30T14:22:17.670

7 Getting an address from ethereumjs-utils ecrecover 2017-02-28T13:40:58.030

7 How can I verify a secp256r1 signature using solidity 2017-03-04T08:41:45.407

7 What if two ether functions have the same signature? 2017-08-05T19:22:45.917

6 Issue while trying to verify signature 2016-12-28T18:15:49.723

6 How to sign a message using secp256k1 in Ruby? 2017-01-18T19:59:37.423

6 Invalid sender error on private chain 2017-03-25T02:12:41.460

5 smart contract transaction signature 2017-01-09T17:28:16.510

5 What are the IDs for the various Ethereum chains? 2017-01-20T18:35:38.423

5 How to get signature parameters from a transaction? 2017-03-22T07:49:32.070

5 web3.eth.sign not returning a valid signature - Or how else does this work? 2017-03-30T22:01:22.923

5 Sign transaction on ARM microcontroller 2017-04-18T11:25:27.013

5 Signing a raw transaction in Go 2017-05-22T22:47:28.327

5 Signatures differ in web3js and web3j 2017-10-27T15:43:14.943

4 Why does a multisignature wallet in mist only require one signature? 2016-02-26T09:37:06.743

4 Possible to sign offline transactions with Geth? 2016-03-01T06:40:33.073

4 how to sign with the Ethereum private key and derive the the r, v, s it needs for verification 2016-05-10T07:00:08.853

4 Why are there discrepancies between client message signatures? 2017-05-07T08:08:04.050

4 Mobile app to sign tx of another app (similar to Metamask in browser)? 2017-08-01T11:36:13.110

4 Can a message hash be recovered from a signature? 2017-11-12T16:19:21.130

4 Verifying Bicoin signed message in Ethereum smart contract 2017-12-04T10:01:19.993

4 How to properly create a raw transaction and sign it using web3 in browser 2018-01-15T17:10:19.737

4 How are tuples handled for the function selector? 2018-05-30T17:06:56.670

3 Does a contract message call require a signature from the sender? 2016-02-28T05:10:39.893

3 What is signing ethereum transaction? 2016-08-23T14:17:30.887

3 Ecrecover after eth_sign update with preamble 2017-04-03T14:14:58.667

3 I need help with signatures 2017-07-07T20:06:07.413

3 Sign without “\x19Ethereum Signed Message” prefix 2017-08-17T11:12:56.230

3 Can contracts act as decryption programs? 2017-08-28T14:30:26.460

3 Can the precompiles in Byzantium for pairings be used for implementation of BLS verification? 2017-11-28T05:01:22.350

3 Should UIs handle 4Byte signature collisions 2018-02-20T11:32:40.300

3 Error using web3.eth.personal.sign 2018-03-21T18:01:26.360

3 Dynamic number of inputs to a smart contract 2018-03-29T16:41:09.590

3 Why is s in transaction signature limited to n/2+1 2018-07-27T09:32:35.040

3 Verification of externally-created ECDSA signatures in Solidity 2018-07-30T17:53:46.500

3 Does Ethereum support pairing operations? 2018-09-23T15:35:57.350

2 What signatures will be used for Casper bets? 2016-02-14T11:57:22.117

2 Where in EthereumJ transaction signature is validated? 2016-09-06T20:43:22.377

2 Secp256k1 bindings are not compiled. Pure JS implementation will be used 2017-03-06T10:40:10.703

2 Can I web3.eth.sign with private key 2017-08-04T19:06:30.903

2 How public key is recovered for signature verification? 2017-08-11T22:13:03.147

2 Is it possible to sign a message in Solidity? 2017-08-15T01:21:27.730

2 When is a transaction signature checked in a contract? 2017-08-16T15:58:26.417

2 What information can be publicly read from a signature? 2017-08-24T14:41:51.143

2 Verifying personal.sign signature with pyethereum 2017-10-04T03:05:24.700

2 Signature in Ethereum: Are all a transaction fields signed? 2017-11-08T18:45:37.083

2 Sign a raw TX without a library? 2017-11-14T16:55:07.260

2 How do I split a signature into v, r, and s parts in python? 2017-11-17T16:25:23.233

2 What is the best type to store a signature on chain? 2017-12-14T23:12:35.227

2 how to use personal_sign 2017-12-21T03:55:23.787

2 Can I use a Bitcoin client to sign a message with an Ethereum address? 2018-02-05T19:31:18.127

2 Get public key from signature in a smart contract (note, public key, not address) 2018-02-28T13:32:20.273

2 Ethereum public key recovery validation 2018-03-19T23:10:02.890

2 Why does a signed transaction include a "hash" field? 2018-04-17T10:21:36.603

2 Authorization via Metamask 2018-04-23T13:33:18.197

2 How to recover public from tx signature(r,s) and verify signature? 2018-05-23T12:14:55.947

2 How to set the nonce in offline transaction? 2018-05-29T08:30:06.177

2 How can we verify BGLS aggregate signatures in Solidity? 2018-06-17T09:45:21.817

2 What is "electrum style signature"? 2018-07-27T08:43:33.267

2 Recover address from signature using web3j 2018-07-30T12:48:54.650

2 Invalid transaction signature on sending transaction 2018-08-31T01:49:46.970

2 how do you sign transactions programatically? 2018-09-16T12:43:26.130

2 Verify Public Key from an RSA SHA256 signature 2018-09-27T23:07:41.013

1 How to sign anything with my ethereum private key and verify with public key? 2016-01-29T14:07:18.740

1 Wallets that sign transactions using true random numbers 2016-10-13T14:20:58.260

1 multi-sig transactions, not on contract-level 2016-11-05T14:51:36.043

1 sending raw transaction unsuccessful 2017-05-09T12:34:46.690

1 How to confirm request in Parity 2017-06-29T19:33:52.373

1 Python ECDSA Public Key Recovery 2017-07-03T17:34:54.703

1 Should signed text messages use the "\x19Ethereum Signed Message" prefix? 2017-07-11T09:22:04.023

1 How to cryptographically challenge a public/private address key pair? 2017-07-12T03:44:07.017

1 How do you multi-sign a piece of data with multiple keys? 2017-08-16T05:32:27.337

1 Can contracts trade on etherdelta? 2017-08-30T14:29:24.830

1 Send signed transaction hash to the network 2017-09-04T19:57:58.300

1 Sign a transaction hash using JavaScript 2017-09-06T16:06:47.130

1 Similar to currency-abstraction, could there be cryptography-abstraction (free market for digital signatures on a single state)? 2017-10-11T17:46:01.427

1 Can not retrieve Ethereum address form transaction signature on Python 2017-10-31T15:07:56.577

1 Verify multiple state channel signatures in one transaction 2017-11-03T11:08:21.587

1 keccak256 returns 0x000000000000000 2017-12-28T11:48:49.573

1 Implementing EIP 155 for Signing Party 2018-01-03T12:54:25.803

1 Convert an hexadecimal string to bytes in pure Solidity 2018-01-05T05:08:43.357

1 Deriving the v value from an ECDSA signature without web3j 2018-01-08T03:36:46.747