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Author	SHA1	Message	Date
Chris Stewart	2a1f8742ce	Changing SIGHASH_ALL to be a case class so it can hold the byte of whatever the last byte in a signature is. This is needed because if the last byte does not match any other hash types it is classified as a SIGHASH_ALL	2016-03-27 12:05:41 -05:00
Chris Stewart	89b9c7f29f	Factoring out TransactionSignatureCheckerResult into it's own file	2016-03-27 10:48:42 -05:00
Chris Stewart	0af48b52f6	Changing hash type factory to default to SIGHASH_ALL if the input does not match any other SIGHASH types	2016-03-27 10:35:45 -05:00
Chris Stewart	2b1395ce1d	Adding three result types for transaction signature checker - can succeeed, can fail because of der encoding, and can fail because of incorrect signatures. This takes care of issues of BIP66 examples	2016-03-26 15:01:18 -05:00
Chris Stewart	46eb3eb7ea	Fixing bug of finding hash type of the empty digital signature	2016-03-26 14:34:02 -05:00
Chris Stewart	932705595b	Fixing more bugs with calculating maxSigs & requiredSigs inside of multisignatureScriptPubKey	2016-03-25 17:58:19 -05:00
Chris Stewart	e075a239a4	Adding restrictions inside of ScriptPubKeyFactory for MultiSignaturePubKeys, now need to have atleast 2 ScriptNumberOperations	2016-03-25 14:22:23 -05:00
Chris Stewart	c891d220ac	Refactoring functionality inside of TranasctionSignatureChecker to reuse the same code for both p2sh multisig redeem scripts & regular multisig scripts. Also redoing how maxSigs is calculated for MultiSignatureScriptPubKeys	2016-03-25 13:48:03 -05:00
Chris Stewart	c495261f3a	Adding empty signature to ECDigitalSignature, adding unit tests for empty signature. Factoring DER signature encoding out of TransactionSignatureChecker	2016-03-25 12:03:47 -05:00
Chris Stewart	c141bbda7d	Putting band aid on bip66 example 6 right now using a Try type if public key verification fails inside of bitcoinj	2016-03-24 21:02:14 -05:00
Chris Stewart	b2332596e2	Fixing bug where isStrictDerEncoding was not working for the empty signature	2016-03-24 20:20:55 -05:00
Chris Stewart	4b7eb99836	Adding functionality inside of OP_CHECKSIG to see if the DERSIG flag is set	2016-03-24 19:35:16 -05:00
Chris Stewart	215cdddf20	Adding function to detect if a signature is strictly der encoded according to BIP66	2016-03-24 17:43:18 -05:00
Chris Stewart	7d8699e822	Adding ScriptVerifyFlag to indicate if CLTV is enforced or not	2016-03-24 11:23:19 -05:00
Chris Stewart	91feb92709	Creating ScriptFlagFactory to parse script flags and create them from strings	2016-03-23 15:25:57 -05:00
Chris Stewart	be8ae500c7	Adding ScriptVerify flags for script evaluation	2016-03-23 13:40:54 -05:00
Chris Stewart	07c2ed3669	Decoding (r,s) from DER signatures	2016-03-23 11:25:48 -05:00
Chris Stewart	72657b898f	Adding functionality to check if a signature isDEREncoded'	2016-03-22 20:05:45 -05:00
Chris Stewart	b9197a8613	Adding spongycastle as a dependency, cleaning up more usages of ScalacoinUtil	2016-03-22 08:15:16 -05:00
Chris Stewart	82d5713549	Fixing bug where single OP_0 was being classified as a MultiSignatureScriptSig	2016-03-21 15:41:15 -05:00
Chris Stewart	df085162a4	Switching to explicitly parsing redeemScripts now instead of parsing them while they are running through ScriptParser - this is how bitcoin core treats redeemScripts. This will make it easier for evaluating scriptSigs with redeemScripts in them	2016-03-21 14:02:04 -05:00
Chris Stewart	26ba8d956e	Slightly modifying line in script_valid.json to separate an OP_PUSHDATA op from the size of the data being pushed	2016-03-21 09:39:24 -05:00
Chris Stewart	55ae249f52	Adding new hash types to the available hashtypes inside of HashTypeFactory	2016-03-20 13:04:12 -05:00
Chris Stewart	e3f96968b2	Successfully building crediting tx and spending tx for bitcoin core tests inside of script_valid.json	2016-03-19 21:12:40 -05:00
Chris Stewart	cbac956ba7	adding requirement to buildSpendingTransaction to make sure it is the same as bitcoin core's buildSpendingTransaction	2016-03-19 15:12:32 -05:00
Chris Stewart	a9c52728f3	Adding code to mimic how transactions are built for script_valid.json inside of bitcoin core	2016-03-18 13:12:42 -05:00
Chris Stewart	86c7841cac	Fixing bug in how p2pk are evaluated in opCheckSig	2016-03-17 11:26:59 -05:00
Chris Stewart	f90b5d15d5	Fixing bug where p2pk scriptPubKeys were not being assigned the correct case class	2016-03-16 13:14:56 -05:00
Chris Stewart	f2f849f23b	Adding functionality to parse a p2pk scriptSig into the correct case class	2016-03-16 13:01:33 -05:00
Chris Stewart	82eac5ea15	Refactoring codebase back to use explicit ScriptPubKeyFactory & ScriptSignatureFactory - I think this will be better for long term maintainability	2016-03-16 09:46:34 -05:00
Chris Stewart	207674c6f9	Fixing bug in finding requiredSigs for MultiSignatureScriptPubKey - the number of sigs always follows the OP_0 that has to be placed in the scriptPubKey	2016-03-15 13:05:29 -05:00
Chris Stewart	c8ed1662d7	Addign case object to represent the empty script sig	2016-03-15 12:07:23 -05:00
Chris Stewart	0efe9d970b	Adding case inside of ECDigitalSignature for empty digital signatures - these are used inside of Bitcoin Core's script_valid.json test cases	2016-03-15 10:09:12 -05:00
Chris Stewart	00fde6fe56	Refactoring interface for script interpreter - now clients are responsible for building ScriptPrograms. Also adding another parameter for scriptSigs/scriptPubKeys to pass in the parsed asm representation along with the hexadecimal representation	2016-03-14 15:56:28 -05:00
Chris Stewart	4843ee5c5e	Adding a wrapper scriptSig/scriptPubKey from core test cases	2016-03-14 12:52:23 -05:00
Chris Stewart	26d827cde9	Merge pull request #2 from Christewart/checksig_implementation ... Checksig implementation	2016-03-14 10:13:14 -05:00
Chris Stewart	a4a4b0bea4	Cleaning up some compiler warnings	2016-03-14 10:08:48 -05:00
Chris Stewart	2e9d362a83	Validating 2/3 p2sh scriptSig and making sure it fails to validate a 2/3 scriptSig that doesn't have enough sigs	2016-03-14 09:46:52 -05:00
Chris Stewart	aa25c4d199	Adding scaladocs for traits	2016-03-13 19:37:00 -05:00
Chris Stewart	df73627ae5	Removing ScriptSignatureFactory companion object - creating dependency inside of ScriptSignatureFactory to be injected with a ScriptSignature	2016-03-12 07:02:32 -06:00
Chris Stewart	57920765dc	Fixing compiler warnings about matching exhaustiveness inside of TransactionSignatureChecker - adding BitcoinSLogger trait for common logging across the implementation	2016-03-11 10:24:58 -06:00
Chris Stewart	588737eec8	Removing ScriptPubKeyFactory companion objecting - creating dependency of ScriptPubKeyFactory to be injected with a ScriptPubKey	2016-03-11 09:44:39 -06:00
Chris Stewart	23dfba3788	Adding case to handle p2pk scriptSignature type inside of TransactionSignatureChecker	2016-03-10 07:08:10 -06:00
Chris Stewart	db0355a453	Successfully verifying a 2 of 2 p2sh scriptSig against its scriptPubKey - next is validating m/n where m != n	2016-03-09 19:12:40 -06:00
Chris Stewart	c800777981	Fixing bug in SIGHASH_SINGLE implementation - now added a regression test in the translated bitcoinj hashForSignature & my home grown translated version to make sure the hashes are identical	2016-03-09 18:19:12 -06:00
Chris Stewart	22fa7af6dc	Changing type of redeemScript inside of P2SHScriptSignature from Seq[ScriptToken] to ScriptPubKey	2016-03-08 19:51:06 -06:00
Chris Stewart	629c65cd7b	Refactoring test cases from scriptPubkeys/scriptSigs into their own files	2016-03-08 09:53:24 -06:00
Chris Stewart	dbfb367fac	Successfully validating a multisignature script signature is spending a multi signature scriptPubKey correctly	2016-03-07 15:59:17 -06:00
Chris Stewart	f5063bc8c2	Implementing function to find public keys, required sigs, and maximum signatures inside a multisignature scriptPubKey output	2016-03-07 15:28:58 -06:00
Chris Stewart	002d1111f3	Creating product types for scriptPubKeys	2016-03-07 14:49:05 -06:00