dido:public:ra:xapend:xapend.b_stds:defact:bitcoin:bips:bip_0143
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dido:public:ra:xapend:xapend.b_stds:defact:bitcoin:bips:bip_0143 [2020/05/19 22:49] char [Motivation] |
dido:public:ra:xapend:xapend.b_stds:defact:bitcoin:bips:bip_0143 [2021/08/13 16:09] (current) murphy |
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| - | ======== BIP 0143 - Transaction Signature Verification for Version 0 Witness Program (soft fork) ======== | + | ==== BIP 0143 - Transaction Signature Verification for Version 0 Witness Program (soft fork) ==== |
| - | [[dido:public:ra:xapend.stds:defact:bitcoin| return to the Bitcoin Standards ]] | + | [[dido:public:ra:xapend:xapend.b_stds:defact:bitcoin:bips| return to the Bitcoin Improvement Proposals ]] |
| <table> | <table> | ||
| Line 9: | Line 9: | ||
| | Comments-Summary | No comments yet. | | | Comments-Summary | No comments yet. | | ||
| | Comments-URI | [[https://github.com/bitcoin/bips/wiki/Comments:BIP-0143]] | | | Comments-URI | [[https://github.com/bitcoin/bips/wiki/Comments:BIP-0143]] | | ||
| - | | Staus | Final | | + | | Status | Final | |
| | Type | Standards Track | | | Type | Standards Track | | ||
| | Created | 2016-01-03 | | | Created | 2016-01-03 | | ||
| Line 17: | Line 17: | ||
| </table> | </table> | ||
| - | : **Note**: The following is an excerpt from the official Bitcoin site. It is provided here as a connivence and is not authoritative. Refer to the original document(s) as the authoritative reference. | + | : **Note**: The following is an excerpt from the official [[dido:public:ra:xapend:xapend.a_glossary:b:bitcoin|Bitcoin]] site. It is provided here as a convenience and is not authoritative. Refer to the original document(s) as the authoritative reference. |
| - | ====== Abstract ====== | + | === Abstract === |
| - | : //This proposal defines a new transaction digest algorithm for signature verification in version 0 witness program, in order to minimize redundant data hashing in verification, and to cover the input value by the signature.// | + | //This proposal defines a new transaction digest algorithm for signature verification in version 0 witness program, in order to minimize redundant data hashing in verification, and to cover the input value by the signature.// |
| === Motivation === | === Motivation === | ||
| - | //There are 4 ECDSA signature verification codes in the original Bitcoin script system: CHECKSIG, CHECKSIGVERIFY, CHECKMULTISIG, CHECKMULTISIGVERIFY (“sigops”). According to the sighash type (ALL, NONE, SINGLE, ANYONECANPAY), a transaction digest is generated with a double SHA256 of a serialized subset of the transaction, and the signature is verified against this digest with a given public key. The detailed procedure is described in a Bitcoin Wiki article. ((https://en.bitcoin.it/wiki/OP_CHECKSIG | + | //There are 4 ECDSA signature verification codes in the original Bitcoin script system: CHECKSIG, CHECKSIGVERIFY, CHECKMULTISIG, CHECKMULTISIGVERIFY (“sigops”). According to the sighash type (ALL, NONE, SINGLE, ANYONECANPAY), a transaction digest is generated with a double SHA256 of a serialized subset of the transaction, and the signature is verified against this digest with a given [[dido:public:ra:xapend:xapend.a_glossary:p:public_key|public key]]. The detailed procedure is described in a Bitcoin Wiki article. ((https://en.bitcoin.it/wiki/OP_CHECKSIG |
| ))// | ))// | ||
dido/public/ra/xapend/xapend.b_stds/defact/bitcoin/bips/bip_0143.1589942940.txt.gz · Last modified: 2020/05/19 22:49 by char
